Downhole connection system

Wells – Conduit wall or specific conduit end structure – Downhole coupling or connector

Reexamination Certificate

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Details

C166S380000, C166S381000

Reexamination Certificate

active

07398822

ABSTRACT:
A technique is provided in which a contraction joint is used to facilitate connection of well equipment assemblies at a downhole location. The contraction joint accommodates changes in system length during engagement and use or the well equipment assemblies in a wellbore. Additionally, the contraction joint provides a positive indication of joint position and enables resetting of the joint following initial contraction.

REFERENCES:
patent: 5996712 (1999-12-01), Boyd
patent: 6447021 (2002-09-01), Haynes
patent: 2005/0072564 (2005-04-01), Grigsby et al.

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