F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
61/5.8
F16L 1/26 (2006.01) E21B 33/037 (2006.01) E21B 43/013 (2006.01)
Patent
CA 1051675
ABSTRACT In general, the present invention provides pro- cesses and apparatus for bending and straightening or otherwise installing marine pipelines at underwater installations, and includes systems in which marine pipelines are installed at water depths to 250 feet or more, utilizing an underwater chamber which may be op- erated with its interior wet, dry or combinations thereof. In one form, the system provides for inter- connecting wellheads or other stations with manifolds or other stations and comprises running marine pipeline generally vertically downwardly from the water surface into the work chamber, mounted in operative association with an underwater wellhead or station, wherein the pipe is bent in the desired radius and through the desired angle and then straightened to exit from the chamber and wellhead in a substantially horizontal attitude such that it may then be pulled to a manifold or other under- water station with, for example, a wire line.
267941
Na
Transworld Drilling Company
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