Technical Proposal: FOR Application of Formashield On Flow Line On-Board Abo Fpso
Technical Proposal: FOR Application of Formashield On Flow Line On-Board Abo Fpso
NO:
TECHNICAL PROPOSAL
FOR
BW OFFSHORE
DOCUMENT REVISION
REVISION NUMBER DATE REVISED DESCRIPTION
1.2. REFERENCES...........................................................................................................................4
1.3. DEFINITION............................................................................................................................5
1.4. ASSUMPTIONS.......................................................................................................................6
1.5. Past Experiences....................................................................................................................7
1.6. Award and Accolades...........................................................................................................23
1.7. Project Program...................................................................................................................24
1.8. Project Key Personnel..........................................................................................................24
1.9. Material and Equipment......................................................................................................25
1.10. Safety Precaution.............................................................................................................26
1.11. INSTALLATION PROCEDURES...........................................................................................26
1.12. ACCEPTANCE AND REJECTION CRITERIA..........................................................................28
1.13. NDT INSPECTION OF COMPOSITE REPAIR........................................................................29
2. EXECUTION REQUIREMENTS.......................................................................................................29
3. REPORTING AND DOCUMENTATION...........................................................................................29
4. ATTACHEMENT............................................................................................................................30
1.0
2.0 INTRODUCTION
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Costly corrosion problem could be controlled thereby guaranteeing asset life elongation
through the use of our OEM’s composite pipe wrap materials, comprising of: Fiberglass
Fabric, Resin Part A&B, Primer kit, and mixing/application tool kit. For a better result, we
strongly recommend media blasting of the substrate to be repaired to a minimum surface
profile of 2.5mil.
1.2. REFERENCES
ASME PCC-2 Repair of Pressure Equipment and Piping
ISO 24817 Petroleum, Petrochemical and Natural Gas Industries-Composite Repairs
for Pipework, Designs, Installations, Testing and Inspection
MSDS Clock Spring/Pipewrap Material Safety Data Sheet
B31.3 Process Piping
1.3. DEFINITION
EATECH Engineering Automation Technology Limited
BWO BW Offshore
OEM Original Equipment Manufacturers
ASME American Society of Mechanical Engineers
TM Trade Mark
NACE National Association of Corrosion Engineers
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1.4. ASSUMPTIONS
In generating Engineering Design for this work scope, certain assumptions were made, such as the pipe/component material which was
assumed to be Carbon Steel for all pipes/components. Summary of other assumptions and the corresponding line number is as presented on
Table 1 below.
Table1 Design Assumptions
OD Thickness Depth of Operating Design Component
defect Pressure Pressure Shape
Project Description Engineering Design Number Inches Inches % of OD Psi Psi N/A
Open Drain EATL/BWO.ABOFPSO/ED/009/019 16 0.32 50% 150 300 Straight
LP Fuel Gas EATL/BWO.ABOFPSO/ED/010/019 8 0.32 50% 150 300 Straight
MSW cooling line to Main Generator (TA) EATL/BWO.ABOFPSO/ED/011/019 8 0.32 50% 150 300 Elbow
condenser. DNV CC 107
SW central cooling discharge line -DNV CC 107 EATL/BWO.ABOFPSO/ED/012/019 8 0.32 50% 150 300 Elbow
SW common discharge line from Main EATL/BWO.ABOFPSO/ED/013/019 8 0.32 50% 150 300 Tee
Generator (TA) condenser- DNV CC 107
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TS19d AT EHRA
Composite Repair on 2"-1KD-DC-661061-E1 -
34. ESSO Exploration 12/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS19e AT EHRA
Composite Repair on 2"-1KD-DC-661062-E1 -
35. ESSO Exploration 12/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS20b AT EHRA
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- TS29a AT ERHA
COMPOSITE REPAIR ON 2"-1KD-DC-651045F5
51. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- TS29b AT ERHA
COMPOSITE REPAIR ON 2"-1KD-ZN-651264G5
52. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- US3a AT ERHA
COMPOSITE REPAIR ON 2"-1KD-ZN-651264-G5
53. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- US3b AT ERHA
COMPOSITE REPAIR ON 2"-1KD-GX-651099G5
54. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- US6 AT ERHA
COMPOSITE REPAIR ON 2"-1KD-GX-651120G5
55. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- US8 AT ERHA
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TS6c AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623101-A1
68. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- TS6d AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623101-A1 -
69. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS6e AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623103-A1 -
70. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS7a AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623103-A1 -
71. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS7b AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623103-A1 -
72. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS7c AT ERHA
COMPOSITE REPAIR ON 4"-LD-DC-623103-A1 -
73. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
TS7d AT ERHA
COMPOSITE REPAIR ON 3"-1KD-DC-661058E1
74. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- TS18g AT ERHA
COMPOSITE REPAIR ON 3"-1KD-DC-661058-E1
75. ESSO Exploration 19/10/2017 EHRA MBL/EHRA/PO/VOV17/123/0
- TS18h AT ERHA
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ESSO Exploration
Composite Repair on 2"-1QD-HN-655091-B1
118. and Production 15/3/2018 EHRA MBL/EHRA/PO/VOV17/123/0
TS8- Test Point 7 AT ERHA
Nigeria Limited
ESSO Exploration
and Nigeria Composite Repair on 8" drain nozzle from
119. 9/4/2018 EHRA PIVOT PO
Production MMF 206 and 207 at EHRA
Nigeria Limited
ESSO Exploration
and Nigeria Composite Repair on 2" nozzle for cathodic
120. 9/4/2018 EHRA PIVOT PO
Production protection probe on MMF 205 at EHRA
Nigeria Limited
ESSO Exploration
and Nigeria Composite Repair on HP Separator 2
121. 11/4/2018 EHRA PIVOT PO
Production Produced Water Sampling Line Leak at EHRA
Nigeria Limited
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Base Manager
Project Manager
QA/QC Engineer Document Controller
Execution Team
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Installer 4
Blaster/ QC 2
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SURFACE PREPARATION
Mark the ends of the designated repair zone. Unless otherwise specified, the Centre
of the defect shall be considered to be the Centre of the repair zone.
Measure repair area to confirm repair zone
For a better result, surface shall be prepared using hydro blasting or abrasive
blasting
Ensure NACE 3 or 2.5 Mil surface profile is achieved using standard surface profile
gauge – this activity shall be witnessed by the Company Representative if surface
preparation is executed by EATECH execution team.
Solvent wipe with acetone to remove any foreign matter.
FORMASHIELDTM INSTALLATION
Mix the load transfer Epoxy Putty by kneading (compressing it back and forth)
for 2‐3 minutes with the index finger and thumb until uniform in colour and
"streak‐free". For large surface area where epoxy paste is required, mix Part
A & B in the ratio of 4:1 until uniform colour is achieved. Gently spread the
mixed epoxy paste on the blasted surface.
Apply the load transfer filler to all defect areas with greater than 20% wall
loss and blend to a smooth pipe contour. "Tented areas" are also to be
considered.
Mix epoxy primmer in equal volumes of Part A & B until uniform in colour
without streaks.
Apply a thin layer of the mixed primer to the entire repair zone.
Unroll a section of the composite fabric onto the wet‐out work station. Mix
one dump kit of Resin by hand for a minimum of 30 seconds and begin
applying evenly to the fabric. Ensure that the resin is soaking through the
fabric completely. Begin rolling up wetted fabric onto the application stick.
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Continue until entire fabric section is wet and rolled around the application
stick.
Begin wrapping with composite fabric around the pipe surface (“Repair
Zone”) while
applying uniform tension. When fabric has overlapped itself, begin pulling
tightly on the wrap during the remainder of the application. Repeat Steps
the last two steps as required.
After the FormashieldTM is fully cured, remove the Constrictor Wrap, then use
a Shore D Pencil Durometer Tester to measure the hardness of the
Composite material. Acceptable hardness value of 80 Shore D is
recommended.
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II. Visually inspect the repair using the Disposition and Acceptance Chart below:
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2. EXECUTION REQUIREMENTS
I. Personnel requirement - This repair shall require a minimum of eight (8) personnel;
2 Execution Lead, 4 Installers, & 2 Blaster/ Quality Control.
II. Job duration – This job will require minimum of 8 days.
III. Material – See material & equipment in Section 2.1 below
Note: For effective and optimum result, installation MUST be done by only trained and
competent personnel
4. ATTACHEMENT
Each, engineering Design shall have a corresponding Engineering Report with the following
attachment:
Engineering Designs
QA/QC checklist
Photos of the before repair and after repair
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