E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/02 (2006.01) E21B 17/06 (2006.01) E21B 17/20 (2006.01) E21B 23/04 (2006.01) F16L 37/113 (2006.01)
Patent
CA 2317282
A connector (10) with an axial bore (12) therethrough has a connecting end (22) for coiled tubing, and a connecting end (20a) for a downhole tool, and is arranged to be released and divided into two sleeve-shaped parts (14 and 16,20). In a spring chamber (44) for a piston body (23,23a) and with the purpose of delaying release, there is filled lubricating grease, for which extrusion channels are provided. The lubricating grease must first be forced out of the spring chamber (44) by means of the piston body (23,23a) before the spring (42) thereof can be fully compressed and allow displacement of the piston body into its end position to release an expandable locking ring (17) and release the connector. Because of the delay achieved, the interconnection of the two parts (14 and 16,20) can be restored, if an unintentional pressure build-up inside the connector ceases before the locking ring (17) has been brought completely out of its active position.
Bakke Technology As
Ridout & Maybee Llp
LandOfFree
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