Hydraulic release joint for tubing systems

Details Hydraulic release joint for tubing systems Hydraulic release joint for tubing systems

E - Fixed Constructions

21

B

285/53

E21B 23/00 (2006.01) E21B 17/06 (2006.01) E21B 23/04 (2006.01)

Patent

CA 1310677

PATENT APPLICATION C-56153 ABSTRACT OF THE DISCLOSURE A tubing release coupling which does not require rotation to effect release incorporates a collet which is retained within a groove by a collet retainer located on an axially movable piston. The piston is retained in place thereby locking the collet by a detent cantilever spring. Pressure differential between the tubing and the annulus forces axial movement of the piston against the spring force of the cantilever spring effecting release of the collet. The spring force of the detent cantilever spring may be adjusted by positioning spring adjusters and at a variable distance allowing the leg portions of the cantilever spring. C-56153

610293

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