Latching system for maintaining position of component within...

Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...

Reexamination Certificate

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C166S098000

Reexamination Certificate

active

06896050

ABSTRACT:
A latching system for maintaining the position of a component within a downhole drill string section during operation of a drill string. One preferred latching system embodiment has a shoe member including a cavity for receiving a component, a chamber opening into the shoe member cavity, an engagement member movable in the chamber between a retracted position and an engagement position, a first passage in fluid communication with the chamber and extending to an end surface of the shoe member, and a second passage extending from an outer side surface of the shoe member to the first passage. A pressure differential between pressure in the first passage and pressure in the second passage alters the position of the engagement member.

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patent: WO 0171149 (2001-09-01), None

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