Method of and apparatus for positioning a submarine structure

Details Method of and apparatus for positioning a submarine structure Method of and apparatus for positioning a submarine structure

E - Fixed Constructions

21

B

166/51.2

E21B 33/035 (2006.01) E21B 41/10 (2006.01) E21B 43/017 (2006.01)

Patent

CA 1143282

A B S T R A C T "APPARATUS FOR USE IN PLACING A SUBMARINE STRUCTURE ON THE SEA BED ALONGSIDE AN UNDERWATER WELL AND METHOD OF DRILLING A PLURALITY OF CLOSELY SPACED UNDERWATER WELLS" A template for spacing a submarine structure such as an anchor block or a guide base for a second underwater wall alongside an existing underwater well comprises a beam attached at one end, by means of a hinge, to a lowering guide which can be threaded over and be lowered along two guide wires of the first well, and at the other end by a remote-controlled release mechanism to the submarine structure such as the anchor block itself or a guide base for a second well. The beam, with such a submarine structure attached, is lowered down the guide wires while held in a vertical configuration, and is then swung into a generally horizontal configuration at the sea bed.

345631

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