|
Client
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Shell Deepwater Development
|
|
Region
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Gulf of Mexico
|
|
Location
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Garden Banks 602 - 426
|
|
Water Depth
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2970-3670 ft.
|
|
Services Performed
|
Subsea, Pipelines
|
| Contractor |
J. Ray McDermott, Inc. |
| Sub-Contractor |
Mentor Subsea Technology Services
|
| Award |
January 8, 1998 |
| Completion |
May 31, 1999 |
| Design/Consultants |
Brown & Root
FMC Corporation
|
| Project Managers |
Wendell Freeman |
| Key Participants |
John E. Chance & Assoc.,
Inc.
Floatec Corporation
CRC-Evens Pipeline Int'l., Inc.
Oceaneering Int'l., Inc.
Shaw Pipeline Services, Ltd.
Stolt Comex Seaway, Inc.
Bayou Pipe Coating Company
Victoria Machine Works |
Description:
- Each line (approx. 11.8 miles ea.) was initiated with
a Sled pull-in assisted by a drill rig mounted winch. Both
lines terminated at Shell's Auger TLP with a SCR. The SCRs
were pulled into their final position utilizing the TLPs
Drill Derrick.
|
Scope:
- Installation of two pipe-in-pipe (PIP) flowlines (6 x
.719" X -65 Carrier pipe w/10 x 0.469" X-52 Jacket
pipe) from GB602 (subsea Sled) to GB426 (SCR).
Innovations:
- JRM developed an internal weld cooling device, which significantly
reduced the weld cycle times (~20%). (JRM applied Floatec
between the Carrier and Jacket.) The application worked
very well and there was controllable shrinkage.
Technology:
- JRMs DB50 and (enhanced) J-Lay was utilized. The JRM J-Lay
system and pipeline abandonment and recovery (A&R) system
were upgraded to perform the work.
|
