Thermal slide joint

Details Thermal slide joint Thermal slide joint

E - Fixed Constructions

21

B

166/62

E21B 33/128 (2006.01) E21B 17/06 (2006.01) E21B 33/10 (2006.01)

Patent

CA 1248016

ABSTRACT OF THE DISCLOSURE A slide joint is shown which is used to provide a floating seal between an inner floating member and a surrounding conduit in a well bore. The floating member has a clutch element which is engaged at one end thereof. A circumferential, compressible packing is carried on the exterior of the floating member and is sandwiched between a fixed nut, at one end, and the clutch element at the other end. The clutch element includes downwardly extending clutch portions which are engageable with mating recesses provided within the inner bore of the surrounding well conduit when the floating member is run into position. The floating member can then be rotated by rotating the associated tubing string which extends to the well surface. As the floating member is rotated, the clutch element crawls up the externally threaded surface on the floating member in the direction of the compressible packing and the fixed nut. Movement of the clutch element in the direction of the fixed nut compresses the packing and forms a fluid-tight seal with the well conduit inner bore.

506637

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