0 FOR WORKING

22/11-12 B FOR APPROVAL

29/10-12 A FOR APPROVAL

DATE

REV.

MARK

DESCRIPTION

DESIGNED

REVIEWED

APPROVED

PLAN HISTORY

DALIAN CHINA

TEL:0411-84482714

FAX:0411-84412923

E-MAIL:

JU2000E JU2000E JACK-UP DRILLING RIG

TECHNICAL DESIGN

DS311-140-012GY

FILE

REV.

0

DRILL FLOOR WEIGHING TEST PROCEDURE

WEIGHT

SCALE

DESIGNED 7 TOTAL SHEETS

1 SHEET

CHECKED REVIEWED

STANDARDIZED JU2000E-9 APPROVED

DS311-140-012GY 7 2

1. Introduction

1.1 JU2000

To determine the finishing weight and center of gravity of drill floor, Weighing of the drill floor

should be conducted.

1.2

The weighing method is to lift the drill with eight sets of hydraulic jacks which fixed with load

sensor on and determine the weight of drill floor by the reading of load sensor by strain gauges.

1.3

Any weights those are included in wet weight of drill floor should be added.

2. Items Required to Perform Weighing Process

250t H2A-G2-3MN-5B8

Eight sets of hydraulic jacks250t, eight H2A-G2-3MN-5B load sensor by strain gauges.

Spare hydraulic jacks and load sensors must be on hand in case of any break down. All of these

must be inspected to ensure correct safe operation. load sensors must be certified by approved

vendor. Steel stools must be prepared to deal with the contingency state.

3. Main Dimension of Drill Floor

20 m drill floor (L):20m

23.3 m drill floor (B):23.3m

10.115 m drill floor (H):10.115m

4. Theoretical Weight & Gravity of Drill Floor

Weight1110.699t

LCG(m):6.909m

TCG(m):-0.127m

VCG(m):37.348m

DS311-G109-002,REV D.

More information please see weight control report, file number isDS311-G109-002.REV D.

DS311-140-012GY 7 3

5. Preparation For Weighing the Drill Floor

5.1

1

The drill floor should be at the finishing status, any facilities that are not installed should be

registered in Form 1, and the drill floor should be clean of superabundance to the best of ours

abilities. The status must to be affirm before weighting test one day with ownerclassproject

team and design person 1 Table1: Increasing and decreasing equipment

(NO.) (TITLE)

weighting(t) LCG(m) TCG(m) VCG(m) (NOTE)

1

2

3

4 5 6 7

8

Z Note: center of rotary table is 0, forward is +, left is +, hull base line is 0 VCG. 5.2 1

Any liquid weight should be registered in Form 1 and be conducted.

5.3 3

Unload the three pipe of the Catwalk Machine and reload them after weighing of the drill floor.

6. weighing procedure:

6.1

Training all handlers before test.

6.2 100.

Setting all hydraulic jacks and load sensors according to demand and ensuring stopcock

protrude within 100mm.

DS311-140-012GY 7 4

6.3

All hydraulic jack should run step by step when drill floor rising on same time for avoiding any

disbennifit.

6.3.1

Checking the drill floor rise actually and assuring the readings of all sensors can be recorded.

6.3.2 2

The drill floor should rise at 3 steps and recording all data at schedule 2 respectively. All hydraulic

jacks offload, and all load sensors off load secondly before drill floor down.

The drill floor weighing test report should be prepared for inspection.

DS311-140-012GY 7 5

2

Table2:Record of strain gauges reading

Reading1 Reading2 Reading3

Strain

Si ()

Weight

Wi (kN)

Strain

()

Weight

Wi (kN)

Strain

()

Weight

Wi (kN)

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

Total

operate: check: owner: surveyor:

DS311-140-012GY 7 6

6.4 1

Arrangement of hydraulic jack see attached drawing 1.

1NO1

2NO23

NO34NO4

5NO56NO6

8NO87NO7

FWD

B

DS311-140-012GY 7 7

250

B-BC-C

1