Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1982-09-23
1984-03-27
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405168, 405188, 166338, 285 24, 285315, E02B 712, F16L 3500
Patent
active
044390688
ABSTRACT:
An apparatus for releasably supporting a guide post to an underwater well installation and a method for recovering such a guide post by remote operation from the surface. The apparatus comprises a support sleeve coupled to the well installation and receiving a lower end portion of the guide post therein, an outer actuating sleeve movably supported on the support sleeve, and a plurality of locking elements coupled to the support sleeve and moved radially inwardly into engagement with the guide post by means of the actuating sleeve. The locking elements have ring segments engageable by the actuating sleeve and radially inwardly directed pins which pass through bores in the support sleeve and are received in a locking groove in the guide post lower end portion. The guide post is recoverable by a remotely lowered and operated tool that has a first pair of jaws for engaging and lifting the actuating sleeve, thereby unlocking the guide post, and a second pair of jaws for engaging and retrieving the unlocked guide post to the surface.
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Armco Inc.
Taylor Dennis L.
LandOfFree
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