Reduced J-tube riser pull force
Patent
·
OSTI ID:5724506
This patent describes a method for reducing the force required to move a pipe through a J-tube attached to an offshore platform. It comprises covering the pipe with at least one of a slippery coating and a slippery surface, each comprising hydrophilic polymer; reacting a polyol with the hydrophilic polymer to make the hydrophilic polymer slippery; and moving the pipe through the J-tube attached to the off-shore platform.
- Assignee:
- Shell Oil Co., Houston, TX (USA)
- Patent Number(s):
- US 5035922; A
- Application Number:
- PPN: US 7-101042
- OSTI ID:
- 5724506
- Resource Relation:
- Patent File Date: 25 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
02 PETROLEUM
47 OTHER INSTRUMENTATION
OFFSHORE PLATFORMS
TUBES
PIPES
SURFACE FORCES
MARINE RISERS
OFFSHORE OPERATIONS
OIL WELLS
PERFORMANCE
WELL LOGGING EQUIPMENT
EQUIPMENT
WELLS
423000* - Engineering- Marine Engineering- (1980-)
020300 - Petroleum- Drilling & Production
440400 - Well Logging Instrumentation
02 PETROLEUM
47 OTHER INSTRUMENTATION
OFFSHORE PLATFORMS
TUBES
PIPES
SURFACE FORCES
MARINE RISERS
OFFSHORE OPERATIONS
OIL WELLS
PERFORMANCE
WELL LOGGING EQUIPMENT
EQUIPMENT
WELLS
423000* - Engineering- Marine Engineering- (1980-)
020300 - Petroleum- Drilling & Production
440400 - Well Logging Instrumentation