annular bop manual book

code of packer form:tapered packer — Z, spherical packer— omitted

code of bore

Code of Annular BOP

《 OPERATING MANUAL OF ANNULAR BOP 》

1.General

1．1 Type Description

The type of Annular BOP which is manufactured by our company consists of five capital letters or

numbers (Some can be omitted.)

As shown below:

Example:

1．2 Application

1

FH code of bottom connection flange(when the same as rated working pressure,it can be omitted, unit: MPa)

code of rate working pressure(unit: MPa)

“FH35-35/70”shows that the Annular BOP with a spherical packer, the bore is

φ346.1 mm ( 13 5/8″), the rated working pressure is 35MPa (5000Psi), the rated

working pressure of bottom connection flange is 70MPa (10000Psi).

“FHZ54-14” shows that the Annular BOP with a tapered packer, the bore is

φ539.8 mm ( 21 1/4″), the rated working pressure is 14MPa (2000Psi), the rated

working pressure of bottom connection flange is 14MPa (2000Psi).

Shanghai Shenkai Petroleum & Chemical Equipment Co., Ltd (original Shanghai No. 1 Petroleum Machine Works) has a long history and strong technical strength to specialize in manufacturing petroleum equipment and tools. Our company owns the complete inspection, measure and test equipment. We have been awarded “Excellent Scientific and Technological Achievement Prize For Petroleum Equipment", “Second Prize of Science and Technical Progress Prize for Offshore Petroleum Equipment" and “First Prize of Science and Technical Progress Prize for Technical Study of BOP Control System " etc by original State Economy Commission, original Ministry of Machinery Industry and original China Petroleum & Gas Corporation. At present, the BOP stacks, which are manufactured by our company, have formed a product line to satisfy the need of land and offshore drilling platforms.

Our company has complete quality management system. The design and manufacture of product conform to API Spec 16A and national standard. We have obtained dual certificate quality system certification of API Spec Q1 and ISO 9001 as well as the license for using API monogram.

Annular BOP is an important part of well-control equipments. It mainly applies to control wellhead pressure during drilling workover operations and formation testing etc to prevent well blowout effectively and realize safe construction. Annular BOP shall be equipped with hydraulic control system. It is usually used with ram BOP and also independently. It can be used for following operation:

≤35MPa

≥70MPa

Our company has two kinds of packers: spherical and tapered. The bonnet of

spherical packer and shell is joint with flange and wedge. The bonnet of tapered packer

and shell is joint with jaw.〈see table 1、fig 1、fig 2、fig 3 〉


2

. Specification and Main Technical Data

Figure 1 FH35-35/70 Annular BOP (Between bonnet and shell is flange connection)

2

It can seal any size of annular space with a kind of rubber if there is a drilling tool, tubing or casing in hole.

When there is no drilling tool in hole, it can seal the wellhead completely.

When the well blowout and

overflow happens during

drilling, coring or well

logging, it can seal the

annular spaces between

Kelly, coring tools, cable,

wireline and wellbore.

Under the control of the

hydraulic control system which

is equipped with a depressuring

pressure regulating valve or a

cushion accumulator, it can

force stripping with 18°tool

joint.

1 Bonnet

2 Spherical packer

3 Adapter ring

4 Piston

5 Shell

6 Sealing component

Annular BOP

Packer type

spherical

tapered

Between bonnet and shell is flange connection (fig 1)

Between bonnet and shell is wedge connection (fig 2)

Between bonnet and shell is jaw connection (fig 3)


、

Figure 2 FH35-70/105 Annular BOP

(Between bonnet and shell is wedge connection)

3

1 Bonnet

2 Clamp ring

3 Wedge

4 Spherical packer

5 Mud-guard ring

6 Sealing component

7 Piston

8 Shell

1 Bonnet

2 Wear plate

3 Tapered packer

4 Jaw5 Sealing component

6 Piston7 Outside sleeve8 Inside sleeve

9 Shell


Figure 3 FH54-14 Annular BOP

(Between bonnet and shell is jaw connection)

Table 1 Specification and Technical Data of Annular BOPModel FH18-35 FH28 －35 FH28-35/70

Bore mm(in) 179.4(7 1/16) 279.4 (11)

Rated Working Pressure MPa (Psi) 35 (5000)

Hydraulic Control pressure MPa (Psi) ≤10.5 (1500)

Hydro-cylinder Opening Chamber Volume (L) 12.8 58 58

Hydro-cylinder Closing Chamber Volume (L) 18.8 72 72

Connection Type between Bonnet and Shell Flange Flange Flange

Type of Packing Unit Spherical Spherical Spherical

TopConnection

Type

Top Studded

Bolt M36 ×3 M48 ×3 M48 ×3

Gasket R46 R54 R54Bottom

Connection

Type

Bottom Flange

Bolt M36 ×3 M48 ×3 M45 ×3

Gasket R46 R54 BX158

Specification of Hydraulic Control Connection Z1" ×2

Net Weight kg 1572 4300 4423

Center of Gravity

(The center of bottom flange is original point)338 462 468

Outside Dimension

Mm

A 737 1138 1138

H 790 1081 1096

Packaging Dimension

(length × width × height) mm

1380×940

×1195

1500×1310

×1640

1500×1310

×1640

Gross kg 1755 4560 4683

Figure 4 Outline drawing of Annular BOP with spherical packer

4

Notice: The size of top and bottom flange conforms to API Spec 16A.


Continual table 1 Specification and Technical Data of Annular BOP

Model FH35-35 FH35-35/70FH35-

70/105FHZ54-14

Bore mm(in) 346.1 (13 5/8) 539.8 (21 1/4)

Rated Working Pressure MPa (Psi) 35(5000) 70(10000) 14（2000）Hydraulic Control pressure MPa (Psi) ≤10.5

Hydro-cylinder Opening Chamber Volume (L) 71.3 71.3 124 72

Hydro-cylinder Closing Chamber Volume (L) 93.5 93.5 152 118

Connection Type between Bonnet and Shell Flange Flange Wedge Jaw

Type of Packing Unit Spherical Spherical Spherical Tapered

TopConnection

Type

Top Studded

Bolt M42×3 M42×3 M48×3 M42×3

Gasket BX160 BX160 BX159 R73

BottomConnection

Type

Bottom Flange

Bolt M42×3 M48×3 M58×3 M42×3

Gasket BX160 BX159 BX159 R73

Specification of Hydraulic Control Connection Z1"(2")×4 Z1"(1 1/2")×2

Net Weight kg 6843 14760 6780

Center of Gravity (the center of bottom flange is original point)

525 910 744

Outside DimensionMm

A 1270 1270 1640 1516

H 1160 1227 1634 1337

Packaging Dimension（length×width×height）mm

1620×1380×1700

2200×2100×2310

Gross kg 7138

Figure 5 Outline drawing of Annular BOP with tapered packer

5

3.2.6 The bonnet is semisphere, no stress concentration.

3.2.5 For the Annular BOP with 70 MPa rated working pressure or more, 12 wedges(example:type FH35-70/105 Annular BOP, see figure 2) are used for the connection between the bonnet and shell. They have big connection strength, and the shell is under uniform stress. It is easy to assemble and disassemble.

3.3.1 The sealing principle of packer: the Annular BOP is sealed in two stages. The stage one: the piston pushes the packing unit up with hydraulic pressure and cause it moves upward along the spherical surface to the center of wellhead, and then the supporting ribs close together to crushed the rubber to the center of wellhead to form the initial sealing. The stage two: if there is well pressure in hole, the wellbore pressure action on the upper annular surface of piston’s inner chamber pushes the piston up further cause the sealing tighter to form reliable sealing. It is called assisting closing of wellbore pressure. 图 6 球形胶芯外形图


3．Working Principle and Primary Structure Features of Annular BOP with

Spherical Packers

3.1 Working Principle

3.2 Structure Feature

3.3 Sealing Principle & Structure and

Feature of Spherical Packer

6

For the Annular BOP with 35 MPa rated working pressure or less, the connection between the

bonnet and shell is flanged connection. It consists of shell, bonnet, piston, packer, adapter ring and

some seals, etc. (Figure 1)

For the Annular BOP with 70 MPa rated working pressure or more, the connection between the

bonnet and shell is wedged connection. It consists of shell, bonnet, piston, packer, mud-guard ring,

wedge, clamp ring and some sealing components, etc. (Figure 2)

When well blowout happens and needs to shut in the well, the high-pressure oil of hydraulic

control device is pumped into the closing chamber of the BOP below the piston. As the piston rises, it

pushes the packing unit up. Because of the limitation of hemispherical bonnet, the packing unit

moves upward along the bonnet spherical surface to the center of wellhead during the rising. Until

the rubber between the supporting ribs is crushed to enclasp the drilling tools or seal the open hole

completely, and then seal the well. When the hydraulic fluid is pumped into the opening chamber of

the BOP above the piston. As the piston comes down, the compressive force action on the spherical

surface of packer is closed up, the packing unit returns to its original position by its elasticity to open

the well.

3.2.1 The major parts, such as bonnet,

shell, piston, and adapter ring adopt

excellent alloysteel. These materials

conform to the specification of NACE

MR-01-75 and apply to the working

condition of acid medium. It has been

heat-treated specially. The hydrostatic

proof test is done according to the

specification of API Spec 16A to

ensure the safety and reliability of

using under the working pressure.

3.2.2 The “Z” shape cross-section

of piston has the features of short

stroke and low height. There are

two wear rings between the piston

O.D. and shell, also a wearing ring

between the piston I.D. and shell to

avoid the direct contact between the

piston and shell during movement

of piston for protecting shell and

piston. Replace the wearing ring if

it is worn.

3.2.4 The lip-sealing ring is used at three dynamic seal

position in Annular BOP. They have self sealing

performance to reduce the wear of sealing ring. So that they

can reliable seal to avoid leak.(see figure 1, figure 2)

Piston O.D. : on piston O.D. to contain opening and

closing chamber.

Piston I.D. : on shell to contain wellbore pressure and

closing chamber.

Adapter ring: on adapter ring to contain wellbore

pressure and opening chamber.

3.2.3 For the Annular BOP

with 35 MPa rated working

pressure or less, the flanged

stud (see figure 1) and cap

nut is used for the

connection between the

bonnet and shell to prevent

the rusting between stud

and nut.

3.3.2 Funnel effect： From the free state to the

compressed state, each cross-section diameter’s

reduction of the annual packer is different. The

reduction at the top is big and at the bottom is small.

Therefore, rubber compresses firmly against the steel

segment at the top of the packer, but rubber at the

bottom is only slightly compressed. This forms a

“funnel element” that not only improves the sealing

characteristics but also makes it easy for a tool joint

to enter the packer. When stripping in, wellbore

pressure compresses the rubber portion of packer to

avoid tensile stress to prolong the service life of

rubber.

3.3.5 The packer is semisphere (Figure 6)：It

is vulcanized by 12~14 radiate bow supporting

ribs and rubber. The ribs are made of alloysteel.

3.3.3 Extruding and tear of the packer are

limited: when a hole is closed, the wellbore pressure forces the center rubber of packer to extrude, but the top plate of supporting rib’s spherical surface can resist that, so the rubber in a compressed state to support the large pressure so that it will not be torn.

3.3.4 Large reserve of rubber：This kind of spherical packer has more spare rubber for replenishment after drilling tools are torn because of forced stripping, and there is no need to replace the rubber during the stripping. It is especially suitable for the situation where drilling tool rubs against rubber frequently.

4.1.2 When well blowout happens and needs to shut in the well, the hydraulic fluid is pumped into the closing

chamber of the BOP below the piston. As the piston rises, it pushes the packing unit up. Because of the

limitation of wear plate, the packing unit moves upward along the piston conical surface and wear plate to the

center of wellhead during the rising until the rubber between the supporting ribs is crushed to enclasp the

drilling tools or seal the wellhead completely, and then seal the well. When the hydraulic fluid is pumped into

the opening chamber of the BOP above the piston. As the piston comes down, the compressive force action

on the wear plate is closed up, the packing unit returns to its original position by its elasticity to open the

well.

4.1.1The connection between the bonnet and shell of the Annular BOP with tapered packer

is jaw connection. It is composed of shell, bonnet, piston, packer, outside sleeve, inside

sleeve, wear plate and some components, etc. (Figure 3)


4. Working Principle and Primary Structure Features of Annular BOP with

Tapered Packers (Figure 3)

4.1 Working Principle:

7

(Figure 6) Outline drawing of spherical packer

4.2.1 The major parts, such as bonnet, shell,

piston, and outside sleeve adopt excellent

alloysteel. These materials conform to the

specification of NACE MR-01-75 and apply

to the working condition of acid medium. It

has been heat-treated specially. The

hydrostatic proof test is done according to

the specification of API Spec 16A to ensures

the safety and reliability of using under the

working pressure.

4.2.5 The inner chamber on the top of

piston is taper, contact with conical surface

packer directly. Due to the degree of the

taper is small, the thrust of piston for

closing is also and O.D. is less than other

type of annular BOP.

4.2.2The lip-sealing ring is used at three dynamic

seal positions in Annular BOP. They have the

performance of self sealing to reduce the wear of

sealing ring. So that they can reliably seal to avoid

leak. (Figure 3)

Piston O.D.: on piston O.D. to contain opening and

closing chamber.

Piston I.D.: on shell to contain wellbore pressure and

closing chamber.

Bonnet: on bonnet to contain wellbore pressure and

opening chamber.

4.2.6 A dismountable wear plat is equipped on the

friction surface which the top of bonnet’s inner chamber

contact with the supporting ribs of packer (Figure 3) to

protect bonnet and easy to replace.

4.2.4 20 jaws are used for the connection between the

bonnet and shell (Figure 3). They have reliable

connection and the shell is under uniform stress. It is easy

to disassemble and assemble. There are two “O” sealing

rings on each of the jaw screw to prevent the rusting

between jaw and bonnet.

4.2.3 There is a test hole of piston on the

bonnet, contrast the piston stroke from time

to time to predict the life of packer.

4.3.1 The Sealing principle of packer: the Annular BOP is sealed in two stages. The stage one: the piston

pushes the packing unit up with hydraulic pressure and cause it moves upward along the piston conical

surface and wear plate to the center of wellhead, and then the supporting ribs close together to crushed the

rubber to the center of wellhead to form the initial sealing. The stage two: if there is well pressure in hole,

the wellbore pressure action on the upper annular surface of piston’s inner chamber pushes the piston up

further cause the sealing tighter to enhance the sealing performance of packer. It is called assisting closing

of wellbore pressure.4.3.2 The out side of packer is taper. The angle

between the bus of the conical surface and the

axis of the packer is 25°. The packer is

vulcanized by 22 supporting ribs and rubber.

Supporting rid is equipped like radial.

(Figure7).

4.3.3 Large reserve of rubber：The packer has a large

storage capacity. Rubbers among packer’s supporting ribs

may be crushed to the wellhead and sealed. The volume of

packer is much larger than the space which needs to close in.

Therefore, they can close in different shape and size of

drilling tools, also can close the wellhead fully. If hydraulic

control pressure is controlled by a depressuring pressure

regulating valve or a cushion accumulator, the packer can

force stripping and allow passing 18°tool joint . Because of

the large reserve of rubber, if the packer is not damaged

seriously, it still can seal and its life can be tested. During

the annular BOP’s working process, the packer is damaged

continually, so it needs to fill through increasing piston

stroke and crushing reserve rubber. When the piston stroke

is the maximum (piston moves to top), or the upper and

lower surface of the packer’s supporting ribs close up

separately, it shows that the reserve rubber of packer run

out. Even if increasing the hydraulic control pressure, the

packer can’t seal reliably. So the life of the packer can be

predicted by measuring the piston stroke.


4.2 Structure Feature

4.3 Sealing Principle & Structure Feature of Tapered Packer

8

5.1 Installation ： Annular BOP

cannot be transported to well site

till sealing pressure test, which

rises pressure to rated working

pressure. Installation should be

according to the BOP’s combined

form of the requirement of well

control. The joints of well tubing

and ram BOP should be in the

same direction.

5.2 Pressure test after installation：Annular BOP should be fixed

firmly after installation and be performed the hydrostatic proof tested

with the whole set of wellhead devices to inspect the reliability of sealing

characteristics and all connections. Only qualified BOP can be used.

On the driller’s station and remote control console, the BOP should

be checked by closing and opening twice to inspect the correspondence

between opening & closing and practical operation and correctness of

connection of pipe lines. Air should be removed from the oil duct. The

BOP should be in the open position when normal drilling.

6.1 Normally, the control pressure(closing

pressure) of BOP with individual depressing

pressure regulating valve should be less than

or equal to 10.5MPa and has certain

proportion with wellbore pressure and the

dimension of drilling tool. If the diameter of

drilling tool is large or the wellbore pressure

is low, it should be lowered correspondingly

to extend the packer service life.

6.4 When using the Annular BOP to stripping in

without well kill, must use 18°tool joint. On the

hydraulic control closing lines, in addition to the

individual depressuring regulating valve, if there is

a accumulator, the hydraulic percussion in the

closing chamber can be obtained a cushioning

effect to extend the packer’s service life. During

forced stripping, on the premise of sealing,

hydraulic pressure should be adjusted as low as

possible and the speed of stripping should be

controlled strictly. Especially the drill pipes should

be put up and down slowly through the joints.

6.5 After opening the BOP, it should be checked if the

BOP is opened fully to prevent the packer to be

scratched.

6.3 After reaching the

target stratum, the BOP

should be checked by

closing and opening

with drilling tool but

no well pressure in

well once every day to

avoid the packer

blocking.

6.7 When the BOP is in closing position, it is allowed to

move drilling tool up and down but not to turn it.

6.8 Notice: keep the hydraulic fluid clean.


5. Installation Method

6.Operation and Notice

9

Figure 7 Outline drawing of tapered packer

6.2 When well blowout happens,

the Annular BOP can be used to

shut in the well first, but it can not

be used for a long time. First, it

can damage the rubber untimely.

Second, it has no locking device.

If there is no special situation, it

can not be used to shut in the

open-hole.

6.6 It is not allowed to release the wellbore pressure by

opening BOP.

After using the well, disassembling the hydraulic lines connecting with BOP, blocking holes

with plugs, clean the BOP from outside to inside, and inspect all seals and their contact

surface. Then grease the bolt holes, the gasket-grooves, the inner surface of bonnet and the

supporting surface of piston to avoid rust.

After disassembling, the connections such as gaskets, studs, nuts and special tools should be

gathered and encased in order to prevent they from losing.

Check the all screws from time to time, tighten them in time if they are loose.

All rubber parts should be stored as following:

# Numbering them according to the time of warehousing and new & old, always using the

oldest first.

# Storing rubbers in a dark and dry room in a relaxational position. Do not store them

outdoors. These rubbers can not be bent or compressed. It is better to lay them flat in a

wooden case. O-ring is not allowed to hung on the woodpile.

# Store rubbers away from corrosive medium, electric motors and high-voltage equipment to

avoid packer producing ozone to corrode rubbers.

7.2.1 Packer is the key part which plays the role of sealing well. Once it is damaged seriously, it

can not seal well. Replacing the packer in time if it is damaged seriously. The packer should be

replaced in support base.


7. Maintenance

7.1 Notice

7.2 Replacing of Packer

10

Keep the hydraulic oil clean and prevent dirt from entering the cylinder to avoid damaging the

cylinder and piston.

7.2.2 If the packer is replaced in well site, it should be operated as

following:

1.Remove the connection between bonnet and shell when there is no

drilling tools in the hole, lift off the bonnet, screw the lifting bolts into

the packer, then lift the old packer out with rope and replace it with the

new one. Install the bonnet, screw the nuts.

2. Pressure test should be performed again after replacing to inspect the

sealing characteristics of the packer.

3. If there is a drilling tool in the hole, the new packer should be first cut

open with tapping knife (with the aid of pinch bar, soapy water to grease

knife edge)（Figure 8）The cutting surface should be smooth, then lift

the bonnet up. As the same, the old packer should be lifted up with rope

and cut open it, replace it with the new one.

4.The rubber burr of the new packer should be removed and grease with

MnS2 on the contact surface between the bonnet and the packer.

(Figure 8) Replacement of packer

when drilling tool is in well

1. Unscrew the two pipe plugs from the closing (lower) port and the opening (upper) port in the shell, let the residual oil out, and then remove the studs, nuts which connect the bonnet and shell. Then lift off the bonnet with lifting tool.

Disassembl

y procedure

of bonnet,

adapter ring

and piston

3. The inner surface of bonnet: Inspect the sealing surface between the inner surface of

bonnet and packer, repair them with abrasive paper or oilstone for shallow friction. It should

be repaired or replaced according to SY/T6160 if there are defects such as serious wear,

crack or pit.

1.Piston: It should be repaired and replaced if the O.D. or I.D. of the piston is worn

0.5mm more than the limited tolerance. The wear ring should be replaced if its O.D. is

worn over original limited tolerance.

5. Sealing ring: First inspect it’s lip. The sealing ring should be replaced if there is any

damage, wear or aging.

4. Packer: Inner hole and spherical surface of spherical packing unit with any serious

deformation, crack, broken and distortion of supporting rib, and aging of packer are not

allowed.

2. Adapter ring and seal groove: Inspect the adapter ring and seal groove. They

should be repaired with abrasive paper or oilstone if there is any pit.


7.3 Maintenance and Replacing

7.3.1 Annular BOP with spherical packer（Figure 9 Exploded View of Annular BOP）

11

2. If the BOP is connected with wedge, the No.2 nut should be unscrewed first with No.1 disassembly screw to eject No.4 clamp ring, then using pinch bar to take out No. 5 wedge（Figure 10 type FH35-70/105 exploded view of Annular BOP）；

3.Screwing the lifting bolt into the packer, and lift it out with rope.

4.Hoisting the adapter ring slowly with lifting tool.

5 Using oil pump or cotton cloth suck oil out from the shell.

6.Hositing the piston slowly with lifting tool.

Inspection

and

maintenance

after

disassembly

6.Shell: It should be repaired if the I.D. or O.D. of it’s sealing portion of is worn 0 .5mm

more than the limited tolerance. The wear ring should be replaced if it’s O.D. is worn over

original limited tolerance.

Disassembly procedure of bonnet and piston:

1.First unscrew the two pipe plugs from the closing (lower) port and the opening (upper) port in the shell, disassembly the No. 20 screw and No. 21 bonnet grip head, unscrew the No.17 supporting screw and No. 16 jaw screw, and lift off the bonnet with lifting tools.

2.Screwing the lifting bolt into the

packer, and lift it out with rope.

3. Using oil pump or cotton cloth to suck oil out from the shell.

4.Hoisting the piston slowly with lifting tool.

5. Disassembly the No.13 and No.9 screw with extension allen（S=10，S=14）wrench.

Inspection and maintenance after disassembly:

1. The inner conical surface of piston：Check the sealing surface between the piston’s inner conical surface and packer, repair them with abrasive paper or oilstone for shallow scratch. It should be repaired or replaced according to SY/T6160 if there are defects such as serious wear, crack or pit.

3. Seal groove： Inspect the seal groove. It should be repaired with abrasive paper or oilstone if there is any pit.

4. Others are same as the 7.3.1 Annular BOP with spherical packer

It should be performed in accordance with the reversed procedure of disassembly procedure 7.3.1. or 7.3.2., but notice as following:

1. The burr or cusped edge on parts should be removed to ensure the

edge of seal ring not be scratched. Keep the parts clean.

3. Greasing both the surface of sealing ring, inside and outside

sealing surface of matched parts for easy to assemble.


7.3.2 Annular BOP

with Tapered Packer（Figure 11 Exploded View of Annular BOP）

7.4 Assembly of Annular BOP

12

7.Packing washer groove: Inspect packing washer groove of flange, any defect that affects

sealing characteristics is not allowed.

6.Take No.11 outside sleeve and No. 14 inside sleeve out.

2. Check the wear plate which is equipped in the bonnet. It should be replaced in time it is worn seriously.

2. Lifting and assembling parts slowly and smoothly to prevent

blocking the parts or damaging the sealing ring and prevent dirt

entering the sealing surface.

5. Let the sealing rings passing through the oil hole smoothly to

ensure not to be damaged.


13

4. Pay attention to the direction of lip sealing ring, the opening of lip

should face the direction of well pressure.

6. The M27 Nut of type F35-70/105BOP（See fig 10, No.2）must

be screwed down and be under uniform stress.

1

18

6

2

17

5

13

12

11

4

14

10

14

3

8

9

19

1

15

16


Figure 9 Exploded View of Annular BOP（Spherical Packer）

14

表2

环形防喷器零件明细表

1

2

3

4

5

6

7

8

9

10

11

12

13

14

23

1516

17

18

19

20

21

22


No. Description Qty

Model

FH18-35 FH28-35 FH28-35/70 FH35-35 FH35-35/70

1 Shell 1 FH1835-02 FH2835.03-00 FH2835/70.01-00 FH3535.04-00 FW1305-17

2 Bonnet 1 FH1835-03 FH2835-05 FH2835-05 FH3535-03A FW1305-05A

3 Piston 1 FH1835-18 FH2835-14 FH2835-14 FW1305-12A FW1305-12A

4 Adapter Ring 1 FH1835-10 FH2835-14 FH2835-11 FW1305-10A FW1305-10A

5 Packer 1 FH1835-06-00 FH2835-11 FH2835.09-00 FW1305.06-00A FW1305.06-00A

6 Stud 24 FH1835-08 FH2835.09-00 FH2835-04 FW1305-04 FW1305-04

7 Cap Nut 24 FH1835-07 FH2835-04 FH2835-07 FW1305-03 FW1305-03

8 Seal-piston I.D. 2FH1835-14

FH1835-15

FH2835-18

FH2835-19

FH2835-18

FH2835-19FW1305.13-00 FW-1305.13-00

9 Wear Ring 1 set FH1835-16 FH2835-23 FH2835-23 FW1305-14 FW1305-14

10Seal-Piston

O.D.2

FH1835-19

FH1835-20

FH2835-20

FH2835-21

FH2835-20

FH2835-21FW1305.16-00 FW1305.16-00

11Seal-Adapter Ring

I.D.2

FH1835-12

FH1835-13

FH2835-15

FH2835-16

FH2835-15

FH2835-16FW1305.11-00 FW1305.11-00

12“O”

Seal-ring1 FH1835-11 FH2835-12 FH2835-12 FW1305-09 FW1305-09

13“O”

Seal-ring1 FH1835-09 FH2835-10 FH2835-10 FW1305-07 FW1305-07

14 Wear Ring2

setFH1835-17 FH2835-17 FH2835-17 FW1305-15 FW1305-15

15 Joint 2 -- FH2835-13 FH2835-13 -- --

16 Z1"Pipe Plug 2 FH2835-22 FH2835-22 FH2835-22 FH2835-22 FH2835-22

17 Screw off 4 Screw off 6.8 Screw off 6.8Screw off

9

Screw off

9

18“O”

Seal-ring24 -- -- -- 85×5.7 85×5.7

19“O”

Seal-ring1 -- -- -- FW1305-08 FW1305-08

Table 3 Type FH35-70/105

15

Table 2 Annular BOP Parts List (Spherical Packer)


Annular BOP Parts List

Figure 10 Type FH35-70/105

Exploded View of Annular BOP

Table 4 Type FHZ54－14

16

No Description Qty Code1 Disassembly

Screw12 FH3570-19

2 Nut 12 FH3570-033 Stud 12 FH3570-024 Clamp Ring 1 FH3570-015 Wedge 12 FH3570-056 Bonnet 1 FH3570-067 Screw M12×30 12 GB70-768 Packing unit 1 FH3570-079 Combine sealing

ring1 FH3570-09

10 “O” Seal ring 1 FH3570-0811 Combine sealing

ring2 FH3570-11-0

12 Mud-guard ring 1 FH3570-1013 Wear ring 2 FH3570-1514 Combine sealing

ring2 FH3570-14-0

15 Screw M36×80 8 (12.9 class)16 Hanger 4 FH3570-0417 Screw off 4 JB8112-199918 Combine sealing

ring2 FH3570-12-0

19 Wear ring 1 FH3570-1620 Shell 1 FH3570-1821 Joint 4 FH3570-1322 Oil plug 4 F02-1523 Piston 1 FH3570-17

1

2

3

4、5

2

6

7

8

9

10

11

12

13

14

15

16

17

18

1920

21

22

23

24

No Description Qty Code1 Bonnet 1 FHZ5414-032 “O” Seal ring 2 FHZ5414-093 Seal ring 2 FHZ5414-084 Wear plate 1 FHZ5414-015 Stud M12×35 6 GB5783-866 Packing unit 1 FHZ5414.02-007 Seal ring 2 FHZ5414-158 Piston 1 FHZ5414-139 Stud M20×80 16 GB70-8510 Seal ring 2 FHZ5414-1211 Outside sleeve 1 FHZ5414-1412 “O” Seal ring 1 FHZ5414-1713 Stud M12×45 16 GB70-8514 Inside sleeve 1 FHZ5414-1615 Jaw 20 FHZ5414-0516 Jaw screw 20 FHZ5414-0617 Supporting screw 20 FHZ5414-0718 “O” Seal ring

25×2.6520 GB3452.1-82

19 “O” Seal ring53×5.3

20 GB3452.1-82

20 Stud M12×70 4 GB70-8521 Bonnet grip head 4 FHZ5414-0422 Shell 1 FHZ5414.11-023 Oil plug 2 F02-1524 Adapter 2 FHZ5414-10


Annular BOP Parts List

Figure 11 Type FHZ54-14

Exploded View of Annular BOP

8.Common Malfunction and Settlements（Figure 9～Figure11）17


No. Malfunction Cause Settlement

1

For the normal

packer of control

line, the packer can

not seal and shut in

the well pressure.

1.The old packer is worn

seriously, peel or aging.

2. The new packer can not be

closed to proper position.

3. Some impurities may be

deposited in the groove of

packer.

4. There is leakage in the seal

portions of piston.

1. Replacing the packer.

2.Opening and closing the

packer for several times.

3.Cleaning the groove and

other parts of packer, move

the rubber regularly.

4.Replacing the sealing ring

of piston.

2

The BOP can

not be opened after

close.

1.The BOP is closed for a

long time which results in

permanent deformation and

aging of packer.

2.There is some solidified

cement slurry under the

packer.

1. Replacing the packer.

2.Clean it after lifting the

bonnet out.

3

The BOP can

not be opened and

closed flexibly.

1.Oil can not flow smoothly

in pipe lines.

2. There is leakage in pipe

lines.

1.Dredging the pipe lines.

2.Repairing the pipe lines.

4

The medium in

the well flows into

the cylinder or flows

from the connection

between bonnet and

shell.

The corresponding seals

on adapter ring have been

damaged.

Replacing the

corresponding damaged

seals.

5

The pressure can

not be controlled by

hydraulic unit.

The seal-surface of shell,

cylinder, piston, adapter ring

and seals have been damaged.

Replacing all seals,

repairing the seal surface.

6

The movement

direction of piston is

not the same as

nameplate mark of

control valve.

The connection of pipe

lines between control console

and BOP is wrong.

Reversing the position

of pipe lines of BOP.

9. Ordering

When you order annular BOP, please refer to Table 1 “Specification and Technical Data

18

Model and size.

Working temperature

Sealing gasket groove is

required with corrosion-

resistance overlay or not.

Spare parts and other

ancillary equipments.

Other special requirements.


of Annular BOP” and show following contents:

Note: Products will be supplied according to the manufacturer’s

standards if the above items are not specified when ordering.

19

annular bop manual book

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