Disconnect apparatus and method

Details Disconnect apparatus and method Disconnect apparatus and method

2009-12-10

2010-11-23

Gay, Jennifer H (Department: 3672)

Wells

Processes

Disassembling well part

C166S242600, C166S242700

Reexamination Certificate

active

07836958

ABSTRACT:
A disconnect apparatus and method for use in a well bore. The apparatus includes a top sub having a collet, and an external seal surface. The apparatus further includes a bottom sub having a bore. The external seal surface and the bore cooperate. The apparatus further includes a support piston disposed within the collet. The support piston has a plurality of fins formed on an outer portion thereof, and shear device, operatively attached to the top sub and the support piston, for attaching and detaching the top sub from the support piston. The collet member may include a plurality of fingers having a gap between each individual finger. The plurality of fingers may have an external thread formed thereon that engage an internal thread formed on the bottom sub.

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patent: 6408946 (2002-06-01), Marshall et al.
patent: 6923256 (2005-08-01), Parker

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