Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Method of abandoning and recovering a pipeline during an underwater pipe laying operation

Patent ·
OSTI ID:6661466
;
A method is described of abandoning and recovering a pipeline during an underwater pipe-laying operation from a barge having a curved pipe discharge ramp or so-called moment-limiting guide. When it is desired to abandon the pipe-laying operation and lower the pipeline onto the ocean floor, e.g., during a storm, the moment-limiting guide is moved out of substantial buoyant contact with the pipeline by flooding the guide or pivoting it away from the pipeline. The pipeline may then be lowered onto the ocean floor by means of a cable attached to the free end of the pipeline. The pipeline may then be recovered by reversing the above procedure, so that the pipe-laying operation may continue. (11 claims)
Assignee:
EDB-83-018146
Patent Number(s):
US 3472035
OSTI ID:
6661466
Country of Publication:
United States
Language:
English

Similar Records

Marine pipeline installation system
Patent · Tue May 30 00:00:00 EDT 1978 · OSTI ID:6153444
Marine pipe-lay and recovery. VIII. What do you consider before laying offshore pipelines
Journal Article · Mon May 05 00:00:00 EDT 1975 · Oil Gas J.; (United States) · OSTI ID:6883070
Marine pipe-lay and recovery. Pt. 5. Here's how wind, wave directions affect subsea pipelaying
Journal Article · Sat Mar 01 00:00:00 EDT 1975 · Oil Gas J.; (United States) · OSTI ID:5113821

Related Subjects

02 PETROLEUM
022000 -- Petroleum-- Transport
Handling
& Storage
03 NATURAL GAS
032000 -- Natural Gas-- Transport
Handling
& Storage
42 ENGINEERING
423000* -- Engineering-- Marine Engineering-- (1980-)
INSTALLATION
LEVELS
MATERIALS HANDLING
PIPELINES
SEAS
SURFACE WATERS
UNDERWATER
UNDERWATER OPERATIONS