Handling: hand and hoist-line implements – Grapple – Well type
Patent
1994-11-25
1996-12-03
Kramer, Dean
Handling: hand and hoist-line implements
Grapple
Well type
294 8625, 294 863, 294 8633, E21B 3118, E21B 3120
Patent
active
055801145
ABSTRACT:
A fishing tool is disclosed which is responsive to hydraulic pressure to move away support for collets to allow the collects to deflect and make contact with the stuck object. Upon removal of the hydraulic force, the support for the collets is returned, preferably by a biasing spring, to its original position to lend support for the collets while the collets have engaged the stuck object. The object can then be retrieved to the surface. Application of further hydraulic force while the object engaged releases the support for the collects which allows the collets to disengage from the object. The process can be repeated to obtain successive releases and engagements with the stuck object without taking the fishing tool out of the wellbore.
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Drawing: Baker #49 "Retrieva-D" Lok-Set Packer Retrieving Tool, Product No. 646-17, Dec. 15, 1975.
Drawing: Baker Size 49Da47 Retrieving Tool, F/47Da47 Size "Retrieva-D" Packer, Product No. 646-17; Sep. 3, 1975.
Drawing: Baker #49 "Retrieva-D" Lok-Set Packer with "DB" Bottom, Product No. 646-16, Aug. 19, 1971.
Baker Hughes Incorporated
Kramer Dean
LandOfFree
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