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    MAY 2013

    SUBSEA LINE PIPE TESTS VALIDATE PP

    ROBOT COATING FOR INTERNAL JOINTS

    PIPELINE COATING 2013 CONFERENCE

    STEEL PIPE COATING MARKET UPDATE

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    Copyright Applied Market Information. No part may be reproduced without the prior written permission of the publisher.

    Coming next issue November 2013 Field jointing systems Coating developments Standards and testing

    Click here to make sure you get your copy

    Applied Market Information Ltd

    AMI House, 45-47 Stokes Croft,

    Bristol, BS1 3QP, United Kingdom

    Tel:+44 (0)117 924 9442

    Fax:+44 (0)117 989 2128

    www.amiplastics.com

    04 News

    11 Energy demand drives pipeline growth Growing global demand for energy and the ever changing dynamics of oil and gas

    production means the pipeline coating sector can look to the future with confidence,writes Noru Tsalic.

    17 The future for Europes mega-pipelines With the European economy remaining deep in recession, Nicholas Newman asks

    what the future may hold for the continents mega-scale gas pipeline projects.

    21 Long term ageing of PP foam line pipe The decommissioning of Statoils Tordis field presented a rare opportunity to examinePP foam insulation after almost 20 years of operation in demanding subseaconditions.

    28 Russias CELER marks weld sleeve milestone Advertisement feature: CELER marked a milestone in its history last year when it

    delivered its one-millionth welded pipe joint protection sleeve.

    33 Bayou Wasco goes for flow with Neptune Bayou Wasco Insulations new line pipe coating facility at New Iberia is the first in

    North America capable of applying Dows Neptune two-layer end-to-end insulationsystem.

    35 Internal protection using robotic technology Corrosion is one of the biggest threats to pipeline integrity and a major contributor to

    leaks and increased maintenance cost. Robotic internal weld joint coating canminimise the risk.

    41 Conference report: Pipeline Coating 2013 AMIs fifth Pipeline Coating conference in Austria earlier this year provided an

    unmatched opportunity to discuss market and technical developments. Chris Smithreports.

    46 New materials and equipment

    contents

    PAGE

    4

    PAGE

    17

    PAGE

    21

    PAGE

    33

    PAGE

    35

    contact us

    Head of business publishing: Andy Beevers E-mail: [email protected]

    Editor: Chris Smith E-mail: [email protected]

    Consulting editor: Noru Tsalic E-mail: [email protected]

    Designer: Nicola Crane

    Advertisement manager: Claire Bishop E-mail: [email protected]

    Direct tel: +44 (0)20 8686 8139

    May 2013 | PIPELINE COATING 3

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    PIPELINE COATING | May 20134

    news

    Plains All American to

    build crude pipelineAll Americans existing Orion

    station, from where crude oil

    will flow on the companys

    existing pipeline system to its

    terminal at Cushing.

    The pipeline extension is

    expected to be in service by the

    end of the first quarter of 2014,

    the company said.The announcement was

    made just weeks after the

    company said it is to construct a

    310 mile (496km) 20-inch crude

    oil pipeline from McCamey to

    Gardendale in Texas.

    The Cactus Pipeline is

    expected to begin service in the

    first quarter of 2015 and will

    transport both sweet and sour

    crude from the Permian Basin

    to the Eagle Ford JV Pipeline,

    which directly serves the Three

    Rivers and Corpus Christi

    markets and can supply the

    Houston-area market througha connection to the Enterprise

    South Texas Crude Oil Pipeline.

    The Cactus Pipeline will

    initially be designed to provide

    approximately 200,000 barrels/

    day of capacity.

    www.paalp.com

    US-based Plains All American

    Pipeline said this month it is to

    construct a 95 mile (152 km)

    extension to its Oklahoma

    crude oil pipeline system to

    service increasing production

    from the Granite Wash,

    Hogshooter and Cleveland

    Sands areas of westernOklahoma and the Texas

    panhandle.

    The new Western Oklahoma

    pipeline will provide up to

    75,000 barrels/day of new

    crude takeaway capacity from

    Reydon in Oklahoma to Plains

    Jotunposted a record result

    for 2012, pushing sales up

    6.5% to NOK 11.35bn

    (1.5bn) and profits up by

    more than 17% to NOK

    1.126bn (149m). The

    company reported particu-

    larly strong results in its

    Decorative Paints and

    Protective and Powder

    Coatings business units.

    Jotun CEO Morten Fon said

    the company had benefitedfrom falling raw materials

    prices and the successful

    start-ups of its new factory at

    Sandefjiord in Norway and a

    new powder coatings plant at

    Zhangjiagang in China.

    www.jotun.com

    Sabah Shell Petroleum has

    awarded a contract for

    construction and installation

    of two new subsea pipelines

    for the Malikai Deepwater

    project in Malaysia, which

    will operate at depths up to

    650m off the coast of Sabah,

    to Technip. The contract

    includes transportation,

    installation and pre-commis-

    sioning of a 50km 8-inch gas

    pipeline and a 55km 10-inch

    liquids pipeline. The contract

    will be run from Technipfacilities in Malaysia and

    Singapore.

    www.technip.com

    Aegionsubsidiary Insitu-

    form Technologies has been

    awarded a $5.6m three-year

    contract by the City of Dallas,

    in Texas, US, for in-situ

    rehabilitation of wastewater

    pipelines using its Cured-in-

    Place Pipe (CIPP) technology.

    The project will run to the

    end of 2015.

    www.aegion.com

    news in brief

    Allseas has selected Exova to

    provide a range of pipeline

    testing services as part of a

    three-year agreement valued

    at up to 1m.

    Under the arrangement,

    Exova will provide coatings

    testing and consultancy

    services, immersion ultrasonic

    testing, mechanical and failure

    testing to Allseas on a global

    basis.

    Allseas is a major

    international customer and

    this agreement will present

    exciting challenges on a global

    scale, said Exova coatings

    expert and strategic account

    director for its global engi-

    neering division, John Carter.

    www.exova.com

    Exova inks1m test contract

    Trelleborg acquires Ambler

    Fredrick Mueller

    Trelleborg Offshore and

    Construction has acquired

    UK-based Ambler Technolo-

    gies, which develops and

    produces composite materials

    for buoyancy and insulation

    applications in deep sea

    environments.

    Ambler Technologies is

    located near Manchester in the

    UK and generated sales of

    around SEK 50m in 2012(around 5.8m).

    Trelleborg said the

    acquisition is part of a strategy

    designed to bolster its position

    in oil and gas exploration by

    giving it access to specialist

    expertise in design and

    production of key components

    such as buoyancy modules for

    remotely operated vehicles.

    The acquired operation

    commands unique expertise

    and experience in composite

    materials that complement

    our global offering, said

    Fredrik Mueller, president of

    Trelleborgs Offshore &

    Construction business unit. In

    conjunction with the transac-

    tion, we will create a Centre ofExcellence focused on

    advanced buoyancy modules in

    deep-sea environments.

    www.trelleborg.com

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    May 2013 | PIPELINE COATING 5

    news

    Irancommitsto invest

    Norways Statoil has awarded

    contracts valued at NOK 4bn

    (530m) for the fabrication and

    installation of the Polarled

    pipeline, which will link the

    companys new Aasta Hansteen

    field in the sea off Norway to

    its Nyhamma gas plant.

    The contract for the fabrica-

    tion of the 482km 36-inch line

    pipe has been awarded to

    Marubeni Itochu/JFE whilecoating will be undertaken by

    Wasco and laying carried out

    by Allseas.

    The coating component of

    the contract is worth around

    NOK 1.2bn (160m). Internal

    and external anti-corrosion

    coatings will be applied at

    Wasco plant in Malaysia, with

    concrete coating applied at a

    facility to be established at Mo

    I Rana in the North of Norway.

    According to Statoil, the

    Polarled project breaks new

    ground in using a steel pipe of

    this large diameter laid at

    depths up to 1,265m. The

    Aasta Hansteen field will also

    be the first to use a floating

    SPAR platform on the

    Norwegian continental shelf.

    530m Polarled contracts placed

    The head of the Iranian Oil

    Pipeline and Telecommuni-

    cation Company, Ali Ziar

    has announced a major

    investment in maintenance

    and construction of thecountrys oil pipeline

    network, according to

    reports in the FARS News

    Agency.

    Ziar told the news

    agency that projects for the

    current year include

    inspection pigging of

    6,000km of pipeline and

    construction of three new

    projects : the Farashband-

    Shiraz condensates

    pipeline, Tabriz-Khoi-Oru-

    miyeh oil pipeline, and the

    Abadan-Rey pipeline.

    Russia has terminated a 16-year contract under

    which it allowed Azerbaijan to pump oil from

    Baku in Azeri to the Russian Black Sea port of

    Novorossisk, saying that current shipment

    volumes were insufficient, according to reports

    by Reuters.

    The news agency said when the deal was

    signed Azerbaijan guaranteed to ship at least

    5m tonnes of oil a year through the 1,330km

    pipeline; it now pumps just 2m tonnes.

    Reuters reports Russias Transneft, which

    operates the Russian section of the pipeline, has

    said deliveries will be unaffected this year but

    that transit charges may change from 2014.

    ExxonMobil starts up at Kearl

    The Norwegian Sea is an

    exciting area on the Norwegian

    continental shelf. Polarled

    underpins this. Establishing

    new infrastructure increases

    the opportunities for the

    discoveries already made, and

    at the same time paves the way

    for further exploration and the

    development of future discover-

    ies, said Rune Bjrnson,

    Statoils head of natural gas.The pipeline project will

    require 325,000 tonnes of steel

    pipe. Pipe laying will begin in

    March 2015 with pulling at

    Nyhamma. Pipeline lay down

    at Aasta Hansteen is sched-

    uled for the third quarter of

    2015, said Statoil.

    www.statoil.com

    ExxonMobil has started up its

    Kearl oil sands project in

    Alberta, Canada, which will

    provide 110,000 barrels/day

    ramping to 220,000 barrels/

    day in 2015.

    The Kearl facility is the first

    oil sands unit to operate

    without an upgrader. This isclaimed to reduce carbon

    dioxide emissions to levels

    similar to other US crude

    production methods.

    By combining a high-quali-

    ty resource with our propri-

    etary technologies, proven

    project execution capability

    and operational excellence,

    Kearl will provide attractive

    returns over the long term

    with a smaller environmental

    footprint than traditional oilsands mining, said ExxonMo-

    bil Development president Neil

    Duffin in a statement this

    month.

    The new plant uses a

    proprietary paraffinic froth

    treatment to produce bitumen

    with no need for on-site

    upgrading. Planned energy

    co-generation will further

    reduce its energy needs,

    claims ExxonMobil.

    The Kearl project isexpected to produce 4.6bn

    barrels of oil over 40 years,

    according to the company.

    www.exxonmobil.com

    Russia ends Azeri oil agreement

    Polarled will

    connect Statoils

    Aasta Hansteen field

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    news

    Dubai officefor HarrisPye

    OMS measures up for Bredero Shaw

    Engineering services group

    Harris Pye has established

    a new office in Dubai where

    it will centralise its global

    offshore business support.

    This office is specifically

    set for a purpose the oil

    and gas market sector,

    said group managing

    director Mark Prendergast.

    He said Dubai was selected

    for its position as a global

    hub in the oil and gas

    markets.

    www.harrispye.com

    Measurement technology

    specialist Optical Metrology

    Services (OMS) has completed

    a major contract to measure

    19,000 pipe ends for Bredero

    Shaw at its pipe coating facility

    at Leith in Scotland.

    The 20 and 22-inch diameter

    pipes, destined for use on

    Chevrons Congo River

    Crossing pipeline project, were

    internally and externally

    measured immediately after

    the preservation coating

    removal process. The measure-

    ment was performed in-line

    within a two minute job window.

    www.omsmeasure.com

    read more at www.norner.no / [email protected]

    Testing of protective coatings and polymers

    How can we help you?

    NORNER is an industrially focused plastics institute.

    We offer testing of protective coatings for marine and offshoreapplications based on NORSOK M-501 and comparable standards.We perform exposure and durability tests including NORSOK M-710.Our laboratory includes a microscopy failure analysis centre.

    We are an Achilles Qualified and ISO9001:2008 certified laboratory

    Keyera Corporation and Plains

    Midstream Canada, a wholly-

    owned subsidiary of Plains All

    American Pipeline, have

    proposed construction of a

    jointly-owned liquids pipeline

    system in northwest Alberta.

    The proposed 570km

    Western Reach Pipeline

    System is expected to run from

    the Gordondale area of

    north-western Alberta to the

    NGL energy hub at Fort

    Saskatchewan.

    It is planned to include two

    new pipelines, one carrying a

    propane, butane and conden-

    sate mix and the other for a

    segregated condensate

    service. This will avoid the

    additional costs incurred in

    batch mode operation, it is

    claimed.

    Keyera and Plains Mid-

    stream have begun an open

    season process seeking

    non-binding nominations for

    volumes to underpin the

    construction.

    Last month Keyera said it

    plans to expand its Simonette

    gas plant with the construction

    Keyera targets Albertaof a sour gas gathering pipeline

    linking it to the Wapati region of

    north west Alberta. Construc-

    tion of the 90km 12-inch Wapati

    pipeline will begin in the

    autumn for a scheduled

    start-up in the second quarter

    of 2014. The project is expected

    to cost $120m.

    The company said it is also

    considering construction of a

    separate 6-inch diameter pipe-

    line to carry segregated

    condensate along the same

    route.

    www.keyera.com

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    Canusa-CPS is the industry leader in field-applied coatings for corrosion, mechanicaland thermal protection of both onshore and offshore pipelines. Our advancedtechnology heat-shrinkable sleeves, high-build liquid epoxy coatings and adhesive-based products provide excellent functionality through a broad range of applications

    and temperatures.

    Canusas advanced technology GTS-PP and GTS-PE heat-shrinkable sleevescoupled with IntelliCOAT, state-of-the-art equipment for automated field installation,provide field-joint coating systems that not only far exceed the requirements of theISO 21809-3 standard for 3LPE and 3LPP joint coatings, but that also provideequivalent performance to the 3LPE and 3LPP mainline coatings as per therequirements of the ISO 21809-1 standard for these coating types.

    ShawCor when you need to be sure

    Advanced, field-applied pipelineprotection coatings

    shawcor.comcanusa.com

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    PIPELINE COATING | May 20138

    news

    Technip

    buysIngenium

    The US Department of Energy

    has conditionally authorised

    Freeport LNG Expansion and

    FLNG Liquefaction to export

    liquefied natural gas from the

    Freeport LNG Terminal at

    Quintana Island in Texas to

    countries that do not have a

    free trade agreement (FTA)

    with the US.

    It is the second authorisa-

    tion for exports of LNG from

    the US shale gas industry to

    non-FTA countries (Louisianas

    Sabine Pass LNG Terminal was

    authorised to export up to 2.2

    bcf/day in 2011). The condi-

    US approves Freeportnon-FTA LNG exports

    tional authority, which is

    subject to environmental

    review, will run for 20 years

    and will allow exports of up to

    1.4 bcf/day.

    Shale gas is transforming

    the US energy landscape.

    However, some US-based

    industries, such as petro-

    chemicals, have expressed

    concern that the cost benefit of

    this low cost energy source

    could undermine their

    competitive advantage.

    US federal law generally

    requires approval of natural

    gas exports to countries with

    which it has an FTA agree-

    ment. However, US export

    authorisation is required

    where it does not, with the

    applicant having to prove

    exports are not inconsistent

    with the [US] public interest.

    Dow Chemical, which has

    been vocal in its opposition to

    widespread LNG exports,

    described the Department of

    Energy decision as a prudent

    step in pursuit of a measured

    and balanced approach to LNG

    exports that will benefit

    producers and consumers.

    www.energy.gov

    Technip has acquired

    Ingenium, the Norwegian

    offshore engineering

    services provider to the oil

    and gas industry and pipe

    and cable installation

    sector.

    Based in Oslo in Norway,

    Ingenium employs morethan 20 subsea engineering

    specialists. One of its more

    recent projects included the

    umbilical lay spread on the

    North Sea Giant, part of the

    Goliat project.

    Ingenium brings a team

    with solid experience and

    engineering capabilities

    that reinforces Technips

    presence in one of the

    Groups key markets.

    Technip has a long history

    of working on projects with

    Ingenium, we are thrilled

    that they will be joining the

    Group and complementing

    our competencies to

    accompany us in taking it

    further, said Odd Strm-

    snes, managing director of

    Technip in Norway.

    www.technip.com

    TWI has permeation in handUK-based TWI has developed a high pressure facility for permea-

    tion testing of polymeric materials used in applications including

    oil and gas.

    The custom-designed equipment is said to allow faster and

    more accurate prediction of polymeric barrier performance.

    The testing system works by exposing four polymer discs to

    gas mixtures at small pressure intervals up to 650 bar and

    temperatures up to 100C. Then, using a gas chromatograph, it

    detects the transport coefficients of components of these

    mixtures as they pass through the film under test.

    www.twi.co.uk

    The Freeport LNG facility at Quintana Island

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    news

    Final APLNG

    pipes shippedThe final shipment of pipesrequired to complete the

    520km Australian Pacific LNG

    (APLNG) pipeline arrived at

    Gladstone Port in the Austral-

    ian state of Queensland earlier

    this month, according to

    project managers.

    This final shipment of

    pipes arriving today as plannedensures we remain on

    schedule for delivery of first

    LNG in mid-2015, said

    Graeme Hogarth, pipelines

    project manager at Origin,

    which is responsible for

    construction.

    The 42-inch diameter pipes

    were manufactured in Japan by

    Nippon Steel and coated by

    Wasco in Malaysia.

    The APLNG project involves

    the development of gas fields

    in Queenslands Surat and

    Bowen basins and a new coal

    seam gas to a liquefied naturalgas facility located on Curtis

    Island. More than 140km of

    pipeline has already been laid,

    with more than 80km of that

    already reinstated.

    www.aplng.com.au

    Momentive grows in ChinaMomentive Specialty Chemicals has opened a new plant at

    Tianjin in China to manufacture its Epikure epoxy curing agents.

    The new facility expands the companys regional capacity

    for amine curing agents and will produce both standards such

    as its Epikure 3115-X-70 grade, as well as specialty grades for

    low temperature curing high solids systems.

    www.momentive.com

    TMK adds US-based

    joint capabilityRussian steel pipe supplier

    TMK has, through its US-based

    service company OFS Interna-

    tional, acquired the Houston,

    Texas-based manufacturing

    assets of ITS Tubular Services

    (Holdings) Limited (Aberdeen,

    Scotland).

    The ITS Tubular Services

    facility is located on an 84 acresite to the north east of

    Houston and has the capacity

    to produce more than 700,000

    threaded pipe joints and

    250,000 couplings. It also

    provides pipe inspection

    services under the Independ-

    ent Inspection Services name.

    This acquisition marks

    another step in TMKs

    expansion in the US and

    reinforces the companys focus

    on developing service and

    producing high value-addedtools for the oil and gas

    industry, said TMK CEO

    Alexander Shiryaev.

    www.tmk-group.com

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    lifeguardsLets extend pipeline lifetime

    Seal For Life Office: Gasselterstraat 20, 9503 JB, Stadskanaal, the Netherlands

    Manufacturing sites: Houston - USA, Tijuana - Mexico, Westerlo - Belgium, Baroda - India, Stadskanaal - the Netherlands, Dammam - Saudi Arabia

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    May 2013 | PIPELINE COATING 11

    Update |market

    Growing global energy demand andthe ever changing dynamic of the Oil

    & Gas industry makes for anoptimistic future for the pipeline

    industry, writes Noru Tsalic

    The global market for steel pipe coating was worth

    around 5.5bn in 2012, with oil and gas pipelines

    accounting for the greatest part of this value. On the

    face of it, this may be interpreted as overdependence on

    one particular market. Strategically speaking, then, it

    could be asked if that overdependence is a significant

    risk for the pipeline coating industry? Crude oil and

    natural gas are primarily used as sources of energy. But

    will the world need more energy in the long run? We

    hear every day about efforts to reduce the consumption

    of energy.So it is reasonable to ask whether the world will use

    less, rather than more, energy in the future? And

    whether that energy will come from oil and gas? After

    all, the trend appears to be one of moving away from

    fossil fuels and towards sustainable sources of energy.

    Finally, even if the world continues to use oil and gas to

    produce energy, does that mean that more pipelines

    will need to be built? Mankind has been building oil and

    gas pipelines for decades now. Are there enough

    already?

    This article will focus attention on each of these

    questions and attempt to provide answers based on

    facts, rather than impressions.

    Firstly, will the world need more energy? As the

    price of energy increases and the environmental issues

    receive more attention, numerous efforts are beingmade to reduce the consumption of energy in every field

    of human activity. This has been going on for many

    years now and is certainly likely to continue. Yet an

    analysis of the energy demand shows that consumption

    has increased, not decreased. This is because, while on

    one hand mankind is attempting to reduce consump-

    tion, on the other hand economic growth increases the

    demand for energy (Figure 1). In fact, it can be shown

    that there is an excellent correlation between the two

    (Figure 2). This should of course be obvious: economic

    activities are ultimately about creating value; and it is

    impossible (the laws of nature preclude it) to create

    things without using energy in the process.

    Economic growth is a must, of course, if mankind is

    to progress and prosper. In fact, if anything, faster

    Energy demand drivespipeline growth

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    PIPELINE COATING | May 201312

    market | Update

    economic growth is needed in order to remedy many of

    the worlds current problems. It should not be over-

    looked that a large proportion of the worlds population

    still lives in poverty and under-development, deprived of

    basic needs such as safe drinking water, decent

    sanitation, access to electrical power, etc. And, given

    that the worlds population continues to grow, outputs

    need to be increased just in order to maintain the

    existing situation. In summary, this means we are likely

    to see a more or less continuous increase in world

    demand for energy.

    So, will the world need more Oil & Gas? In recent

    years, sustainability topics have increasingly come to

    the forefront of public debate. Among them is the issue

    of energy: there is increased usage of sustainable

    energy sources such as hydroelectric energy, solar and

    wind power, etc. This is certainly a positive develop-

    ment, in so far as it also makes economic sense. But a

    glance at the data shows that sustainable sources of

    energy represent a very small proportion of the current

    energy mix (Figure 3). Furthermore, even in the mostoptimistic scenarios, renewable energy sources (despite

    achieving considerable growth) are expected to remain

    a minority for the foreseeable future.

    This leads to the question, will the world need

    additional pipelines? Pipelines are built primarily to

    gather, transport and distribute crude oil, natural gas

    and products resulting from their processing. As

    mentioned, many such pipelines have been built in the

    course of recent decades. So why would we need any

    more?

    Firstly, it should be noted that the demand for oil and

    gas is still growing (Figure 4). That in itself would

    indicate that additional pipelines are needed. But the

    growth in Oil & Gas demand is hardly the sole (or even

    the most important) driver of new pipeline construction.

    A dynamic industry

    Oil & Gas production is a very dynamic industry. On

    one hand, the reserves held by each field and basin

    are finite at some point they inevitably start to run

    out; on the other hand, new basins and new fields are

    discovered and brought into exploitation. Obviously,pipelines are not mobile: they cannot be simply moved

    around. New fields mean new pipelines, even if that

    new production replaces older fields that have run

    dry. In fact, it is more than that because the low

    hanging fruit has already been picked. New fields

    tend to be more difficult to access: deeper under-

    ground or under the sea, farther offshore or situated

    in more inhospitable and/or remote regions. This

    often translates into longer pipelines and more

    complex coating systems.

    All this is true even of conventional Oil & Gas

    reserves. Crucially, however, entirely new, unconven-

    tional sources are being brought into play (Figure 5).

    Bituminous sands have been exploited (especially in

    Canada) for a number of years already. Tight gas and

    Figure 1: Trends in energy demand and economic growth Figure 2: Correlation between economic growth and the demand

    for energy

    Figure 3: Global primary energy mix in 2012

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    May 2013 | PIPELINE COATING 13

    Update |market

    coal seam methane are also being increasingly

    exploited. Tight oil is having a huge impact in terms of

    new production (Figure 6). However, perhaps the

    biggest impact is that of shale gas. Huge reserves of

    natural gas are embedded in a particular rock forma-

    tion, called shale. A relatively new technique, known as

    hydraulic fracturing or fracking, is able to release a

    large proportion of that gas. In simple terms, the

    technique involves directional drilling into the shale,

    followed by the injection of large volumes of water at

    high pressure. The jet of water (containing certain

    chemicals and sand) causes micro-cracks to develop

    and propagate through the shale. The gas is released

    through these micro-cracks and is collected at the

    mouth of the well.

    Exploiting shale

    The exploitation of shale gas has boomed in recent years

    in the US, dramatically changing its position in terms of

    energy supply and demand. So unexpected was this

    change that, just a few years ago, large investments

    were made in Liquefied Natural Gas (LNG) terminals.

    Faced with the decrease in its domestic production of

    natural gas, the US was preparing the infrastructure for

    long-range imports of gas. Not only were such imports

    rendered unattractive by the local production of shale

    gas; some of the terminals are, in fact, being reversed in

    order to allow LNG exports.

    This is not likely to remain an exclusively North

    American phenomenon. A recent study commissioned

    by the US Energy Information Agency shows there are

    huge reserves of shale gas distributed around the

    globe. Although both were slower off the mark than the

    US, China and Europe may soon follow in its steps.

    Considerable shale gas reserves are located in Chinas

    Szechuan and (especially) Xinjiang provinces; in Europe

    reserves have been found in Eastern and Central

    Europe, as well as in the UK (Figure 7).

    While the full potential of shale gas is still many

    years away from being fully exploited, there is already

    renewed interest in shale oil. The technologies for

    exploiting this resource are available and have been

    Figure 4: Consumption of oil and gas, 1965-2011

    Figure 5:

    Schematic

    showing

    various types

    of gas reserves

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    PIPELINE COATING | May 201314

    market | Update

    Figure 7: Schematic of shale gas exploitationSource: ProPublica

    used in the past. Shale oil was rendered uneconomic by

    the advent of cheap Middle Eastern crude, but a

    combination of new technologies and an increase in the

    price of crude may well change that in the future.

    All these changes in Oil & Gas supply are powerful

    drivers for pipeline construction. So are changes on the

    demand side - the fast growing manufacturing output in

    Asia and South America, for instance, results in

    increased demand for energy. This, in turn, drives the

    construction of new pipelines.

    Securing future supplies

    However, new pipeline construction is not only driven by

    the growth of Oil & Gas volume that needs to be

    transported. The need for supply reliability acts as an

    amplifier of demand. Since Oil & Gas represents a

    strategically important resource, countries are often

    interested in diversifying sources and routes of

    transportation. Europe is a good example in this

    context. Technically, Europe may be able to source allits natural gas needs from Russia. In reality, however, it

    has sought to also access sources in North Africa,

    Central Asia and the Middle East. This has had the

    effect of driving pipeline construction activity beyond

    that which would have been strictly necessary to

    transport the volumes.

    So far, we have been discussing new pipelines. But,

    as already mentioned, mankind has been building

    pipelines for many decades now. Some of these

    pipelines are already old and need to be repaired,

    rehabilitated or replaced. This kind of activity is gaining

    in importance in the pipeline industry.

    In addition, while this analysis has focused mainly on

    Oil & Gas pipelines (which currently account for the

    lions share of the total), there is also considerable

    Figure 6: US crude oil production, million barrel/daySource: EIA

    growth in the construction of pipelines carrying potable

    water and water-based liquids. To start with, the

    sources of fresh water are very unequally distributed

    around the globe. Some countries and regions suffer

    from water penury a situation that is further exacer-

    bated by climate change, population growth and

    desertification. Solutions involve either transport of

    water from other regions, or desalination. Both

    solutions involve the construction of pipelines.

    In the slightly more distant future, we are also likely

    to see numerous pipelines transporting carbon dioxide.

    As previously mentioned, the world is far from being

    able to wean itself away from fossil fuels. On the other

    hand, continuing to burn such fuels produces CO2, which

    adds to the greenhouse effect and causes climate

    change. Part of the solution is a technology called

    Carbon Capture and Storage (CCS). This involves

    capturing the carbon dioxide produced by power plants

    and storing it, for instance in exhausted Oil & Gas fields.

    Between source and storage site, the pressurised gaswill be transported through pipelines.

    In summary, there are plenty of reasons to answer

    the third question of our analysis with a confident

    affirmative: Yes, the world is likely to need many

    additional pipelines. The pipe coating industry can look

    to the future with optimism.

    For more information

    Quantitative outcomes of the analysis in this article (in

    terms of pipe coating) are provided in the newly-pu-

    bished third edition of Applied Market Informations

    study: Steel Pipe Coating the Global Market 2013.

    For more information contact Noru Tsalic, senior

    vice president AMI Consulting. Tel: +44 (0)1173 111526.

    Email: [email protected].

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    Winn & Coales (Denso) LtdDenso House, Chapel Road, London SE27 OTR Tel: +44 (0) 208 670 7511

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    MAY2013

    SUBSEA LINEPIPETESTSVALIDATEPPROBOTCOATINGFORINTERNAL JOINTSPIPELINECOATING2013CONFERENCE

    STEELPIPECOATINGMARKETUPDATE

    NOVEMBER2012

    NEWOPPORTUNITIES INSHALEGAS

    DELIVERING WATERINBOTSWANA

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    IMPROVEDDEEPSEAJOINTTESTING

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    May 2013 | PIPELINE COATING 17

    European pipelines | analysis

    A number of major

    European gaspipeline projectsemerged over thepast decade. Butwith the continent inrecession,NicholasNewman considers

    the outlook for theseschemes

    PHOT

    O:NORD

    STREAM

    Over the past decade and before the 2008 financial

    crisis consortia comprised of energy companies,

    investment funds and government agencies developed

    ambitious proposals to construct major new pipelines

    across Europe. With Europe now in recession, questions

    over the financial viability, operational sense and even

    the need for such a large expansion of capacity are

    emerging.

    Russias Gazprom and the European Commission

    (EC) were among the principle instigators in these

    schemes. Today, Gazprom supplies one-quarter ofWestern Europes gas requirements. It has proposed at

    least three mega pipeline projects to connect its Arctic

    gas fields in Siberias Yamal Peninsular with Western

    Europe in order to provide sufficient capacity to meet

    Europes future needs, maintain market share and to,

    perhaps, divert gas transmission to Western Europe

    away from the Ukrainian pipeline network.

    Meanwhile, the EC has produced a rival plan for a

    mega pipeline to link Central Europe, via Turkey, to the

    gas fields in Central Asia and the Gulf Region. It also

    plans smaller fill-in projects to make up for gaps in

    the existing pan-European pipeline network in order to

    create a single European gas market.

    These pipeline schemes shared the one major

    assumption that European demand for gas would rise. In

    2006, for instance, Eurogas predicted demand would rise

    43% by 2030, from 438 mtoe (million tonnes of oil

    equivalent) in 2005 to 625 mtoe in 2030 (1). More recently,

    the IEA World Energy Outlook 2012 forecast that,

    because of declining output from European gas fields,

    Europe would need to increase imports of gas from 302

    bcm (billion cubic metres) in 2011 to 554 bcm by 2035 (2).

    Much of this increase in demand is expected to derive

    from expanding Europes power generation sector.

    Unfortunately for Europes pipeline investors,

    however, the demand for electricity in Europe hascontracted by 1.2% per year since 2008, according to the

    ECs Quarterly Report on European Electricity Mar-

    kets(3). This drop in demand has been especially marked

    in energy intensive industries such as steel, pharma-

    ceuticals, plastics, fertilisers, construction, cement and

    chemicals, which have been burdened by both a

    contraction in home demand as well as price un-com-

    petitiveness with American counterparts benefiting

    from the shale energy revolution.

    Given the extent of Europes crisis and Americas

    improved competitiveness, this could mean a perma-

    nent loss in capacity. In many European countries,

    including France, Germany, the Netherlands and Spain,

    gas power plants are failing to break even. In part, this

    is due to the success of Europes renewables policy.

    Where next for Europes

    gas mega-pipelines

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    PIPELINE COATING | May 201318

    analysis | European pipelines

    This has cut into both base load and peak load demand

    the most profitable for gas power generation.

    Moreover, the price of coal has fallen at a time when

    gas and oil prices have risen, leading to a dash for

    coal in power generation in some countries. As a

    consequence, many gas power stations are on short-

    term working or are being mothballed and gas power

    utilities experiencing a declining share of a contracting

    market have put plans on hold for new plants. Un-

    changed, this could reduce the need for gas imports

    from Russia, and hence the additional pipelines.

    Furthermore, Europes climate and environmental

    policies aim to increase the contribution of renewables,

    throwing further doubt on the need for Russian pipeline

    expansion. And potential future exports of LNG from theUS shale gas industry to Europe could depress Euro-

    pean gas prices by at least 3%, raising more questions

    over the long-term viability of many of the new pipelines

    into Europe. European shale gas production in Poland,

    Germany, France, Italy and the UK, should it be

    realised, would further depress imported gas demand.

    This combination of long term weakness in demand

    for gas together with the prospect of potentially growing

    shale gas supplies raises questions over the viability of

    some of the planned new pipelines.

    In 2012, Gazprom exported 203.22 bcm of Russian

    gas to Europe. Current pipeline plans will raise Russias

    export capacity to 380bcm, according to Rovshan

    Ibrahimov, head of international relations at Qafqaz

    University, Azerbajan(4).

    According to Carlo Malarcarne, CEO of SNAM (the

    Italian natural gas infrastructure company): It is

    difficult for suppliers to sign long-term contracts with

    Europe because there has been an over-supply of gas

    since the financial crisis.

    Professor Jonathan Stern, at the Oxford Institute for

    Energy Studies says: Gas demand is in free-fall

    virtually all over Europe; what new capacity do we really

    need?

    Many of these gas pipeline projects have been

    delayed due to difficulties in finding sufficient capital to

    commence construction. Traditionally, banks have

    accounted for around 75% of infrastructure funding with

    the rest coming from governments, sovereign wealth

    funds, investment and pension funds. The financial

    crisis has reduced the amount of available funding and

    increased its cost. Even Gazprom, with political backing

    from the Russian state, relied for a third of the Nord-

    stream pipelines funding on international shareholders

    within the Nord Stream consortium: Gazprom, Winter-

    shall, E.ON, Ruhrgas and Gasunie. Half of the remain-der came from commercial bank lending, and the rest

    from export credit agencies(5).

    Funding difficulties are likely to increase when

    European banks raise their capital ratio requirements

    at the end of this year. To add to the difficulties of

    fundraising, Stern predicts that some of the projects

    may never recoup their investments. Nobody wants to

    invest in a project which is not going to at least break-

    even within a reasonable time, he points out.

    The Nordstream pipeline project is designed to

    directly link Russia, via the Baltic Sea, to the heart of

    the European Union. Once complete, it will consist of

    four parallel pipelines running from Vyborg near St

    Petersburg to Lubmin on the North East German Baltic

    coast. Phases 1 and 2 of this 1224 km pipeline network

    were completed in 2012 at a cost of 7.4bn(6). It is

    expected that Phases 3 and 4 will cost a similar

    amount. Once fully complete, Nord Stream is designed

    to transport 55 bcm of Russian gas every year to central

    and Western Europe.

    The design of the route for Nord Stream has not

    been without difficulty. Planners have had to bear in

    mind the existing complex network of subsea electricalcables, oil and gas pipelines that criss-cross the Baltic

    seabed. In addition, the seabed is not flat and in parts

    there are significant obstacles, ranging from natural

    rocky outcrops to man-made hazards such as unex-

    ploded munitions. As a result, the seabed route has had

    to be adjusted several times(7). At present, Nord Stream

    is conducting a series environmental and social impact

    studies for Phases 3 and 4 to be submitted for approval

    to regulators in the Baltic States.

    The building of Nord Stream 3 and 4 is likely to use

    the same construction infrastructure as for earlier

    stages. The completed project will use the Portovaya

    compressor station in Vyborg near the Gulf of Finland

    for front-end gas boosting.

    In 2010, Ukrainian pipelines accounted for 80% of

    Below: Map

    showing some

    of the key

    proposed

    pan-European

    natural gas

    pipeline axes.

    Source:

    Inogate/EC

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    May 2013 | PIPELINE COATING 19

    European pipelines | analysis

    Russian gas destined for Europe(8). UkrTranzGaz, the

    Ukrainian pipeline operator, has estimated that on

    completion of Nordstream, the Ukraine is likely to lose

    some $720 million per year in transit fees.

    Nabucco is the European Unions priority pipeline

    project designed to reduce dependency on Russian gas.

    It aims to construct a pipeline from the Baumgarten gas

    hub in Austria to Turkey. The pipeline infrastructure

    will consist of main, local and sub control centres,

    compressor stations, custody transfer bordering

    metering stations, intermediate take-offs, cathodic

    protection stations, pigging and block valve stations,

    SCADA and a fibre optic telecommunication system(9).

    In Turkey, it is planned to link with pipelines exporting

    gas from Azerbaijan and eventually the Gulf.If constructed, the route will consist of a 3,900 km

    pipeline, which will be able to transmit 23 bcm of gas

    per year to Europe. However, since its conception in

    2002, this project has faced numerous delays and

    setbacks. There have been problems in obtaining

    sufficient political and financial backing, as well as

    securing sufficient gas supplies. This year alone, power

    utility RWE, one of the projects major backer, sold its

    shares in the pipeline project to Austrias OMV.

    For the future, both Hungary and Bulgaria have

    announced that the Nabucco gas pipeline project has

    successfully completed its environmental impact

    assessment process(10). More significantly, due diligence

    awaits completion from its backers, including the

    European Bank for Reconstruction and Development,

    the International Finance Corporation and the European

    Investment Bank. In June, an agreement by the

    Azerbaijan government is expected to ship gas from its

    massive Shah Deniz Phase 2 offshore gas fields in the

    southern Caspian Sea(11)via the Nabucco pipeline to

    Europe, thereby ensuring sufficient gas.

    Gross European gas consumption (EU27) in mtoe

    Source: Eurostat

    Pipeline Projects State of Progress Principle Partners Capacity per year in Estimated date

    billion cubic meters of Completion

    Nordstream 1&2 Completed Gazprom, Wintershall, 27.5 2012

    E.ON, Ruhrgas, Gasunie,

    GDF Suez,

    Nordstream 3&4 Awaiting Regulatory Gazprom, Wintershall, 27.5 No date

    Approval E.ON, Ruhrgas, Gasunie,

    GDF Suez

    Nabucco Awaiting Regulatory OMV, MOL Group, 23 No date

    Approval Bulgargaz, Transgaz, BOTAS, EU.

    Sudstream Awaiting completion of Gazprom, Transport AG, 63 No date

    Feasibility Study. Construction Eni, EDF, Wintershall

    may start in 2014.

    Yamal-Europe 2 Awaiting completion of Gazprom PGNiG 15 2019

    Feasibility Study.

    Memorandum of understanding

    signed between companies.

    Trans Adriatic Pipeline Awaiting full political Axpo, Statoil, E.ON, EU. 20 No date

    go-ahead

    Polish- Lithuania Awaiting completion of AB Lietuvos Dujos and 2 2018

    Feasibility Study. Gaz-System S.A., EU.

    North South Corridor Awaiting completion of Eustream, GAZ-SYSTEM S.A., EU. 7.5 No date

    (Poland Slovakia section) Feasibility Study.

    Source: various sources including Financial Times, Bloomberg, RT.com

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    analysis | European pipelines

    Gazproms Yamal Europe 2 project is designed to

    carry 50bcm of gas a year from Russia via Poland to the

    central European states of Slovakia, Hungary and

    Austria. It still awaits Polish approval to cross its

    territory(xii). However, Poland has little to gain apart

    from transit fees because of improved integration with

    the European gas network and the soon-to-be opened

    LNG terminal at Swinoujscie.

    It is becoming increasingly clear that the financial

    viability of many of the proposed gas pipelines from

    East to Western Europe is uncertain. If built, some could

    be destined to become white elephants potentially in

    the wrong place and maybe even pointing in the wrong

    direction. With money for these mega projects scarce

    and expensive, it is possible that Europe may turn its

    attention over the coming years to the construction of

    shorter pipelines that fill the gaps in the existing

    network.

    References:

    1 http://www.eurogas.org/uploaded/Eurogas%20long%20term%20outlook%20to%202030%20-%20final.pdf

    2 http://www.nord-stream.com/media/news/press_releases/en/2013/04/nord-stream-publishes-project-information-document-on-

    extension_433_20130408_1.pdf

    3 http://ec.europa.eu/energy/observatory/electricity/doc/qreem_2012_quarter2.pdf4 http://www.regionplus.az/en/articles/view/2015

    5 http://www.oilandgaseurasia.com/news/nord-stream-wins-project-finance-award

    6 http://www.theengineer.co.uk/in-depth/nord-stream-the-worlds-largest-gas-pipeline/1002075.article

    7 http://www.cafebabel.co.uk/article/32128/gas-dispute-europe-2010-lng-terminals.html

    8 http://www.nabucco-pipeline.com/portal/page/portal/en/pipeline/overview

    9 http://www.novinite.com/view_news.php?id=150168

    10 http://www.rferl.org/content/nabucco-rwe-sells-omv/24957233.html

    11 http://www.euroinfrastructure.eu/en/infrastructure/polska-przedmiotem-rozgrywki-czyli-gazociag-jamal-ii/

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    May 2013 | PIPELINE COATING 21

    Lifetime testing | technical paper

    PHOTO:STATOIL

    Polypropylene foam has been used as a thermal

    insulation material for over 20 years and a good trackrecord has been built up over that period. Statoil recent-

    ly decommissioned its Tordis field after 20 years of

    operation and sections of line pipe and field joints were

    retrieved for testing of corrosion attack on the steel

    pipe. Sections were also made available to Bredero

    Shaw for testing and analysis. This is the first time that

    testing has been able to be performed on real samples

    after the full field life and serves as an acid test for the

    validity of the assumptions made in the selection of

    materials and the design of the system. Both mechani-

    cal and chemical testing was performed on the

    retrieved coating samples and the results are reported

    in this paper.

    The Tordis field was originally developed by Saga

    Petroleum and came on stream in 1994. The field is in

    Block 34/7 in the Tampen area of the Norwegian North

    Sea. The water depth was 200m and the design operatingtemperature was 70C. The insulation coating was

    applied to a 275 mm OD pipe, with a wall thickness of

    15.9mm and the total system (all layers) was applied at a

    thickness of 50 mm. The design lifetime used for the

    Tordis project was 20 years.

    The insulation itself represents the first generation

    Decommission-

    ing of theTordis field

    (main image)

    presented an

    opportunity to

    analyse long

    term ageing of

    foamed PP

    insulation

    Long term ageing of PP foam

    Table 1: Results of GPC analysis on exposed

    and unexposed PP samples

    Sample Mw Mn PDI

    Unexposed field joint 380000 73000 5,2Exposed field joint 385000 75000 5,1

    Unexposed foam 505000 81000 6,2

    Exposed foam 520000 80000 6,5

    Statoils decommissioning of its Tordis field presented a rareopportunity to determine the real impact that 20 years of continuous

    operation places on the PP foam line pipe insulation system

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    PIPELINE COATING | May 201322

    technical paper | Lifetime testing

    of the Thermotite system and the coating was per-

    formed in KWHs plant in Vasa, Finland, in 1992. The

    application process, although no longer used, was as

    follows:

    Step 1:

    Cleaning and blasting of steel;Heating of steel and application of FBE and powder

    adhesive.

    Step 2:

    Application of adhesive, foam and outer shield by

    cross head extrusion to cold pipe;

    Induction heating to fuse the materials applied in

    Step 1 to the materials applied in Step 2.

    The field joint process was an early version of the

    IMPP process. One facet of this process is that the use

    of the induction coil to fuse material resulted in a region

    within the insulation layer, close to the FBE / adhesive,

    where the foam density is higher than the core of the

    foam layer.

    The Tordis line pipe insulation system was built up

    as follows: FBE (300 micron); Adhesive (700 micron); PP

    foam (density 700 40 kg/m3, 45 mm) BA202E; Solid PP

    shield (4 mm) Borcoat EA165E. The Tordis injection

    moulded polypropylene field joint was built up as

    follows: FBE (300 micron); Adhesive (700 micron); Solid

    PP (56 mm) Borcoat EA165E.

    Samples and analysis

    As the Tordis project was a milestone for subsea

    polypropylene foam (PPF) technology, several samples

    were retained as demonstration pieces. These have

    been kept in office conditions and thus not exposed to

    compressive loads, thermal loads or environmentalstresses. These have been used in the current paper as

    reflecting the initial state of the produced insulated pipe

    (t=0).

    The end of life sample was retrieved as part of a

    corrosion study and 2m of the retrieved section included

    a section of the injection moulded polypropylene (IMPP)

    field joint.

    Operational data supplied by Statoil indicates that the

    sample had been operated close to the design tempera-

    ture for a significant part of the field life (Figure 1).

    In order to determine the extent of change in the

    materials it is important to address aspects of change

    in the material at the molecular level. The following

    techniques were used:

    Gel Permeation Chromatography - providing

    information on change in average molecular weight and

    molecular weight distribution.

    Melt Flow Index measurements - providing a single

    point viscosity measurement indicative of changes in

    molecular weight.

    In order to determine change in mechanical

    properties the following techniques were used:

    Three-point flexural testing.Uni-axial tensile testing.

    Oxygen induction time measurements were also

    performed to determine the level of residual anti-oxi-

    dant in the samples and thermal conductivity was

    measured on the exposed foam samples and compared

    to the design curve for the material to confirm whether

    the 20 year design assumptions were met.

    Where possible, tests were performed on both

    exposed and unexposed samples. However, due to the

    shape and quantity of the unexposed samples this was

    not possible in all cases.

    GPC test results

    Gel Permeation Chromatography (GPC) analysis was

    carried out according to ISO 16014-1, 2 and 4, 140C,

    Table 2: MFI measurements on exposed and

    unexposed PP samples

    Sample MFR (g/10 min)

    Unexposed field joint 0.559

    Exposed field joint 0.560

    Unexposed foam 0.713

    Exposed foam 0.759

    Table 3: OIT measurements on exposed and

    unexposed PP samples

    Sample OIT /min.

    Unexposed field joint 49

    Exposed field joint 54

    Unexposed foam 20

    Exposed foam 17

    Figure 1: Operation data - temperature after subsea choke

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    May 2013 | PIPELINE COATING 23

    Lifetime testing |technical paper

    trichlorobenzene solution. GPC is a fractionation

    method aimed at gaining information concerning the

    molecular weight distribution within a sample of

    polymeric material.

    Analyis was performed on exposed and unexposed

    samples of both the foam and field joint material. For

    comparative purposes, the molecular weight (Mw) and

    the number average molecular weight (Mn) were

    determined, from which the polydispersity index (PDI)

    was determined as Mw/Mn. [Mw is the average weight

    of polymer chains in the sample weighted according to

    weight fractions, Mn is the average weight of polymer

    chains in the sample weighted according to number

    fractions, PDI is a measurement of spread in the

    molecular weight distribution within a sample.]Significant chemical change, such as cleaving of

    polymer chains, would be expected to change the values

    of Mw and Mn and to narrow the PDI.

    The results are shown below in Table 1 and Figure 2.

    Samples from the exposed section were taken from the

    hot region of the field joint during operation. The values

    of Mn and Mw for exposed and unexposed samples are

    identical within the uncertainty of the measurement

    and, as can be seen in Figure 2, the GPC curves for

    exposed and unexposed samples lie on top of each

    other for both the line pipe and the field joint materials.

    Therefore, at the molecular level there is no evidence of

    significant change.

    MFI test results

    Melt Flow Index (MFI) measurements were carried out

    according to ISO 1133; 230C, 2.16 kg load. MFI is a

    technique that is used as a QC tool to determine whether

    a material has the same melt behavior under a given set

    of conditions.

    As the rheological properties of polypropylene

    materials are dependent on the molecular weight and

    the molecular weight distribution at a given tempera-ture and under a given loading, this simple tool has

    been used to indicate change. Although not as exhaus-

    tive in terms of data as the GPC analysis performed

    above, the test is simple and cheap to perform and the

    results are generally more available to the reader.

    Increase in MFI is assumed to be indicative of reduction

    in average molecular chain length and thus degrada-

    tion.

    MFI results are shown in Table 2. As with the GPC

    analysis, there is little evidence of significant change in

    the MFI of the materials pre- and post exposure. While a

    slight increase in MFI can be seen between the exposed

    and unexposed foam, the significance of this relative to

    the accuracy of the measurement is questionable.

    Oxygen induction testing

    Oxygen Induction Time (OIT) measurements were

    carried out according to ISO 11357-6; 210C, O2. OIT

    reflects the amount of residual anti-oxidant additive

    present in a material. For many materials the presence

    of such additives is essential to prevent oxidative

    cleavage of polymer chains and the corresponding

    reduction in mechanical properties. OIT is often

    measured following material application to ensure that

    suitable processing conditions have been used.

    The question of change in OIT in the subsea environ-ment is often asked and, until this point, little material

    has been retrieved for analysis. In the Tordis case,

    however, samples were available for analysis post

    application and post exposure. The results in Table 3

    Table 4: Three-point flexural tests for exposed and typical raw materials

    Exposed Typical Exposed Typical raw

    foam raw material field joint material

    FLEXURAL MODULUS MPa 1010,8 1000* 754,8 800

    FLEXURAL STRENGTH MPa 27,5 26* 21,3 21,5

    FLEXURAL STRAIN AT FLEXURAL STRENGTH % 6,9 6,6 6,8 6,5FLEXURAL STRESS AT 3,5% STRAIN MPa 23,1 21* 17,6 18

    FLEXURAL STRESS AT BREAK MPa 27,1 - 21,5 -

    FLEXURAL STRAIN AT BREAK % 7,9 - 7,7 -

    Figure 2: Comparison of GPC curves for exposed and unexposed PP samples

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    PIPELINE COATING | May 201324

    technical paper | Lifetime testing

    show there is no significant change in the values

    measured and, as such, no loss in stabilization over the

    20 year operation of the line.

    Three-point flex testing

    Three-point flexural testing was carried out in accord-

    ance with ISO 178. Due to the availability of suitably

    sized samples this testing was limited to the exposed

    material and the raw material properties are used for

    comparative purposes. As such, the degree of changefrom produced article to exposed article is not known.

    This comparison is, however, useful to address the

    overall change from raw material. From the data

    presented in Table 4 it is clear that there has not been

    any significant change in properties from the initial that

    could be considered injurious to the performance of the

    insulation and field joint systems.

    Tensile test results

    Uni-axial tensile tests were performed on samples

    retrieved from both the exposed and unexposed

    specimens and in accordance with ASTM D638-03; type

    IV specimens, 50 mm/min at 21C. Tensile bars

    measuring 12 mm x 8 mm were used to reduce the

    impact of the foam structure on the ultimate elongation

    (elongation at break) of the materials. This is sufficient

    for a comparative study. However, as can be seen in the

    right hand column in Table 5, the data is still associated

    with very high standard deviations relative to the mean,

    and graphical information is more informative. Tensile

    stress-strain curves are included for that reason later

    in Figure 3.

    From Table 5, it can be seen that the yield stress and

    stress at break have reduced for both sets of samples

    post exposure. The fall is relatively small, but signifi-cant. As there is no evidence of chemical degradation in

    the polymer from the GPC study, this reduction may be

    a long term effect of the development of the thermody-

    namic phase/morphological structure of the material

    over time post-application.

    Elongation at yield is affected only slightly for both

    sets of samples over time, as is also the case for

    extension at break when the effects of premature

    failures are taken into consideration in the interpreta-

    tion of the results (Figure 3).

    Thermal conductivity

    Thermal conductivity was measured for the exposed

    material and compared to the current design curve for

    BA202E at 660 kg/m3. The results are shown in Figure 4,

    Figure 3: Stress/strain curves for materials pre and post exposure

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    PIPELINE COATING | May 201328

    advertising feature | Joint protection

    Russian company CELER marked a milestone last year with theproduction of its one millionth welded pipe joint protection sleeve.

    It is now working to meet even more demanding goals

    Russian company CELER celebrated a milestone in its

    history last year: the production of its one millionth

    internal weld joint protection sleeve for steel pipes.

    Developed to protect the exposed surface at the

    welded joint area on steel pipelines with an internal

    anti-corrosion applied coating, CELERs CE pipeline

    internal welding joint protection sleeve is simple to use

    and, due to its elastic rubber collar sealing system, is

    suitable for use with all grades of pipes. The sleeve, the

    intellectual property of CELER, is both the companys

    that has laid the ground for all of its ongoing develop-

    ments.

    CELER manufactures two versions of the CE pipeline

    internal welding joint protection sleeve: one for the oil

    industry or for industrial/waste water applications; and

    one for potable water. Both variants carry all the

    necessary certifications and are supplied complete with

    the companys CH-5-A mastic sealant (the price of this

    is included with the sleeve). This mastic also carries all

    the necessary certifications (including hygiene) and may

    be applied in oil as well as potable water pipeline

    applications.

    One million installed sleeves manufactured,

    supplied and installed over 14 years means

    10,000 km of oil pipelines with internal

    corrosion-resistant coating are benefiting from

    CELERs joint protection technology. That is the

    equivalent to a distance of one quarter of the

    worlds equator, the company says.CELER was established in February 1999,

    commencing operation with just 400m2of

    production space. In those early days, the company

    carried out only assembly work, outsourcing its

    engineering requirements to a number of aircraft

    manufacturing plants. Maximum production capacity in

    the first year was 100 sleeves a day.

    The decision was taken in 2001 to stop

    outsourcing and begin in-house production.

    CELER began manufacturing its own

    blanks, setting up its own welding, coating

    and rubber production units. Capacity in the

    first year of in-house manufacturing was

    35,000 to 50,000 sleeves a year. Today, the

    company operates from a 12,000m2

    Russias CELER marksweld sleeve milestone

    CELER

    manufactures

    its CE joint

    protection

    sleeves for a

    wide range of

    pipe diameters.

    Last year it

    delivered its

    one millionth

    sleeve first product and the one

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    May 2013 | PIPELINE COATING 29

    Joint protection | advertising feature

    production facility and is able to produce as many as

    1,000 sleeves each day, in sizes ranging from 57 mm to

    1,220 mm in diameter. One factor that has played a part

    in this fast production growth is the simplicity of the CE

    sleeve design, which does not call for complex machin-

    ing and welding processes.

    When CELER first introduced the CE sleeve to the

    Russian market, it was competing against a number of

    alternative welded joint corrosion protection technolo-

    gies, including slip casting, protectors, and stainless

    sleeves. At that time, Russian oil companies had no

    particular weld protection preference. However, within

    five years, the sleeve had proved itself to be the most

    efficient protection technology in terms of reasonable

    pricing, reliable performance, and easy installation (the

    collar and two design variants means the CE sleeve can

    be installed on any pipe grade without the need to

    calibrate the pipe ends). By 2012, CELERs sleeve

    production volume had grown to 200,000 units a year.This rapid growth in demand for sleeves lead the

    company to begin production of a range of pipeline

    accessories, such as the Ch-5-A mastic and a complete

    line of special fittings (including pipe-bends, reducers,

    T-joints and flanges with anti-corrosion coating and

    weldolets that are connectable to the sleeves). Several

    of these special fittings and mastics are also patented.

    During the first five years, CELER exploited its

    growing income to equip itself to manage the entire

    production cycle for manufacturing sleeves, mastic and

    various fitting types in-house. The company has

    continued to grow since by expanding its production

    capacity and increasing its production areas. Each year

    a new production shop is added to the manufacturing

    facility.

    The company has also worked to continually improve

    the CE sleeve design and quality. In 2005, it introduced a

    new collar (which is patented separately) which is

    easier to install and achieves a tighter fit. The mastic

    formulation was also improved, allowing its shelf life to

    be extended from six months to eighteen months to

    meet the increasingly demanding requirements of

    customers.

    In the same year (2005), CELER also obtained a

    Certificate of Conformity of the Quality Management

    System to GOST R ISO 9001-2008. This conformity has

    been successfully renewed each year and the company

    proudly claims that it has not received a single quality

    complaint since then.

    CELERs customer list includes almost all of

    Russias major oil companies. Long-standing custom-

    ers such as TNK-BP, Lukoil and Rosneft, have more

    recently been joined by Tatneft, Bashneft, Gazprom, and

    Slavneft. Two years ago, CELER also started workingvery closely with Surgutneftegaz.

    A key strategy in the companys business develop-

    ment has been to collaborate closely with design

    institutes. This enables it to ensure that its products are

    included in new field development projects such as the

    construction of field oil pipelines as early as possible in

    the development stage. Currently, more than 30 R&D

    and design institutes include CELERs CE range in their

    projects. This includes the sleeves, as well as CE

    fittings and all kinds of special parts.

    In recent years, the company has also focused on

    introducing new equipment to increase labour efficiency

    and to expand its production capacities. A year ago,

    CELER commissioned a robot-aided welding complex

    supplied by KUKA, which is said to be unique in Russia.

    Special fittings

    in the CELER

    factory. The

    epoxy-coated

    parts are

    designed for

    joining using

    CE sleeves

    Above right:

    A custom pipe

    bend compris-

    ing T-joint,

    reducer and

    flange under

    construction

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    PIPELINE COATING | May 201330

    advertising feature | Joint protection

    Apart from the robot-aided

    welding complex, high quality and

    capacity is also ensured by means

    of the companys other equipment,

    which includes welding units (manufac-

    tured in Finland, the USA and Sweden) and universal

    welding rotators.

    The company uses two package semi-automatic

    units for facing operations and small diameter sleeve

    manufacturing. These units were specifically designed

    and manufactured for CELER, a process that took two

    years. However, the end result has proved worthwhile

    as the application of these units enabled the production

    output of small sleeves (57 to 219 mm in diameter) to

    be increased from 150 to 500 units per day per semi-

    automatic unit.

    The CH-5-A mastic is used as part of CELERs own

    CE joint protection system, but is also suitable as a

    lower cost alternative for sealing joints in pipe connec-

    tions made using the Butler mechanical pipe joining

    system. Supplying the mastic for use with the Butler

    system required development of an automated dosing

    system to increase production capacity and CELER iscurrently introducing two automated units for mastic

    dosing into its packing systems.

    CELER is equipped to use a variety of protective

    coatings including epoxy powder, liquid epoxy and

    polyurethane - which can be applied according to

    different procedures approved by the client or design

    engineer. All powder coatings are applied using the

    electrostatic method and high-efficiency equipment

    supplied by Gema of Switzerland. CELER has, however,

    modified the powder coating application unit using its

    own application expertise to achieve online control of

    powder weight for a specific part. This has allowed the

    company to achieve a high level of precision in applied

    coating thickness, which has a critical influence on the

    overall quality. Liquid epoxy and polyurethane paints

    are applied using a high-efficient airless

    spraying unit manufactured by Graco.

    CELER is now building on its joint

    protection expertise and expanding its

    product offering to include production

    of pre-fabricated process pipeline

    units with internal or full coating.

    The first step in this was to manufac-

    ture special complex pipeline

    connecting parts with anti-corrosion

    insulation, such as branch pipes with

    flanges and welded weldolets for

    pressure or temperature gauges

    connected by branch pipes of a number

    of pipe-bends, T-joint reducers andsimilar parts.

    The company now aims to be proficient

    in manufacturing all products necessary for

    the assembly of a closed oil & gas gathering

    system of pipes, standard and special pipe fittings,

    support units and welding joint protection sleeves. It

    has completed orders for the manufacture of pre-fabri-

    cated pipeline units with internal corrosion-resistant

    protection, measuring and metering units, cleansing

    and diagnostic agent injection/receiving units, pump

    station manifolds and other process piping for field and

    transit pipelines. It now considers this area to be the

    most promising in the field of anti-corrosion protection

    of internally coated pipelines.

    The most recent addition to the CELER capability

    programme is the introduction of joint insulation

    technologies. The company now has expertise in the

    installation of foamed polyurethane heat insulating

    coatings inside a galvanised casing, which can be

    appied to all of its fittings and units.

    Looking forward, CELER aims to ensure it continues

    to maintain its current pace of development by staying

    in touch with the most recent developments in order toprovide an integrated approach to field pipeline

    anti-corrosion protection and to manufacture the

    highest quality products. To that end, it takes inspira-

    tion from the English writer Lewis Carroll, who said: It

    takes all the running you can do to keep in the same

    place. If you want to get somewhere else, you must run

    at least twice as fast as that!

    For more information:

    Telephone: +7-846-2000-264, +7-846-2000-168

    Fax: +7 846 2000-168

    Email: [email protected]

    Internet: www.celer.ru

    Address: 6, Baltiyskiy passage, Promyshlennaya area,

    Kinelskiy district, Samara region, 446441, Russia

    Above:

    A custom-

    manufactured

    welded flanged

    joint manufac-

    tured to order

    by CELER with

    external

    polyurethane

    and internal

    epoxy corrosion

    protection

    coatings

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    PIPELINE COATING | May 201332

    subsea | Flow assurance

    Bayou Wasco Insulations new US line pipeinsulation facility is the first in North America to

    use Dows Neptune two-layer flow assurance technology

    Bayou Wasco Insulation has commissioned the first

    flow assurance system facility in North America capable

    of applying Dow Chemicals Neptune insulation system

    to oil and gas line pipe at its newly-established facility

    at New Iberia in Louisiana, US.

    The company collaborated with Dow Chemical on the

    full-scale qualification of the process for Neptune P

    insulation coating for line pipe and optimisation of the

    insulation application capability at the new state-of-

    the-art plant.

    We are very pleased with the progress that has

    been made to successfully and quickly bring this brand

    new facility on-line, says Eldridge Indest, vice presi-

    dent and general manager of The Bayou Companies.

    The Bayou Wasco Insulation facility, which was

    formally inaugurated this month, is located close to the

    US Gulf Coast oil and gas markets.

    We built this plant with our offshore customers in

    mind, offering them favorable logistics with an

    accessible location near the Gulf of Mexico.

    Additionally, we believe they will be very interestedin the end-to-end and elevated temperature

    insulation performance of the pipes coated with

    Neptune technology that we produce, says

    Indest.

    Now that we have the ability to produce

    coated pipes that will meet our customers

    deep water insulation needs, we are ready to

    discuss upcoming offshore projects, he says.

    Bayou Wasco Insulation is a joint venture

    established in 2011 between The Bayou

    Companies and Wasco Energy. It was estab-

    lished to provide offshore insulation services to

    customers in North America, Central America

    and the Caribbean. The New Iberia facility is

    configured for application of a range of flow

    Right:

    Dow

    claims its

    Neptune

    two-layer

    systemprovides the

    widest

    operating

    temperature

    range of any

    wet-applied

    system

    Far right:

    Applied

    insulation has

    passed

    demanding

    qualification

    tests

    Bayou Wasco goes for

    flow with Neptuneassurance coatings, including syntactic polyurethaneand multi-layer PP systems as well as the Dow system.

    End-to-end solutions

    The Neptune P advanced flow assurance insulation

    system for line pipe is part of a new proprietary

    end-to-end flow assurance system that also includes

    Dows Neptune F field joint coating and Neptune C

    coating for subsea architecture. The simple, two-layer

    system includes an underlay of a high temperature

    fusion bonded epoxy (FBE) for corrosion protection and

    an overlay of Dows advanced hybrid polyether thermo-

    set insulation.

    According to Dow, the hybrid polyether thermoset is

    a new insulation technology developed to provide robust

    flow assurance in the increasingly harsh conditions

    experienced during subsea oil production. Applied over

    the proprietary FBE layer, the system has passed

    demanding qualification tests, including small- and

    production-scale trials employing extreme testing

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    May 2013 | PIPELINE COATING 33

    Flow assurance | subsea

    procedures to validate compressive strength, durability,

    and thermal performance.

    The system is said to eliminate the need for the use

    of the multiple materials and adhesive tie-layers

    usually employed in flow assurance systems, which is

    said to allow a thinner coating profile to be maintained

    while achieving higher consistency in K-factor between

    tree, to line pipe, and to field joint.

    The Neptune P coated line pipe produced at the

    Bayou Wasco facility is intended solely for use with the

    Neptune F insulation coating for field joints. This

    simple, reproducible field joint coating process was

    recently demonstrated by UK-based Pipeline Induction

    Heat (PIH), part of the CRC Evans group of companies,

    to produce high-quality field joints on an eight inch

    diameter line pipe.

    PIH and Dow have a long history of collaborating to

    bring innovation to offshore oil and gas production,

    says Tony Pontefract, director of business development

    at PIH. Through our collaboration on Neptune FInsulation, we now have the ability to offer customers a

    simpler, reproducible field joint coating process,

    competitive cycle time, high mobility and a compact

    equipment footprint.

    According to Dow, the Neptune technology provides

    the widest end-to-end installation and operating

    temperature range of any wet insulation system currently

    available on the market. The company claims the system

    offers excellent physical properties, remaining highly

    flexible down to -40C and retaining its thermal stability

    at service temperatures of up to 160C. The system has

    been tested for use at depths of up to 4,000m.

    Dow worked closely with polymer and syntactic

    foam-based coating specialist Trelleborg Offshore in

    development of the Neptune C component for subsea

    architecture protection.

    Since its introduction early last year, the Neptune

    system has won a World Oil Award for Best Production

    Technology and an Offshore Technology New Technology

    Award.

    Click on the links for more information:

    www.bayoucompanies.com

    www.dow.com

    www.pih.co.uk

    www.trelleborg.com

    Low temperature performance of Neptune P and F subsea

    insulation coatings

    Product Temperature (C) Elongation at break (%)

    Neptune P -40 65

    (line pipe applications) 0 90

    50 64

    Neptune F -40 72

    (field joint applications) 0 87

    50 67

    Source: Dow Chemical Company

    Typical properties of Neptune subsea flow assurance

    insulation system

    Installation method Reel, S-Lay, J-Lay

    Depth rating At least 4,000m

    Subsea service temperature, C -40 to +160

    Thermal conductivity under SST conditions1 0.152

    Density (ASTM D792, 23C) 1.1Heat capacity (ASTM E1269, 0 to 160C) 1.2 to 1.7

    1 160C at 300 bar for 28 days

    Source: Dow Chemical Company

    Above: Flexural

    fatigue testing

    of the Neptune

    P coating

    simulates

    real-world

    exposure

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