CONTROL SYSTEM COMMUNICATION AND LOCK OPEN TOOL AND METHOD FOR LOCKING OPEN A SAFETY VALVE AND COMMUNICATING WITH SURFACE

WIPO Patent Application WO2005045184

A9

Disclosed herein is a communication and lock open device which includes a lock open portion including a latch configured to engage a shifting profile on a closure member of a safety valve. Further included is a communication portion configured to rotationally align a cutter with a non-annular hydraulic bore in the safety valve and axially cut into the hydraulic bore with the cutter. Also disclosed is a method for replacing the function of a safety valve while employing an original control line including running a communication and lock open tool in a welbore, locating the tool in a tubing retrievable safety valve and shearing a thread in the valve to render moveable a closure member of the tubing retrievable safety valve. The method including shifting the closure member to lock the member in an open position, orienting a cutter and establishing fluid communication with a bore of the valve.

WO/1986/002971	DOWNHOLE WELL PUMP AND METHOD
WO/2001/094745	DOWNHOLE WINDOW FINDER AND METHOD OF USING THE SAME
WO/2001/073423	APPARATUS AND METHOD FOR DOWNHOLE WELL EQUIPMENT AND PROCESS MANAGEMENT, IDENTIFICATION, AND ACTUATION

STRATTAN SCOTT C
MYERLEY THOMAS S

PCT/US2004/035623

July 21, 2005

October 27, 2004

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BAKER HUGHES INC (US)

E21B23/02; E21B29/08; E21B34/10; (IPC1-7): E21B34/10; E21B23/02; E21B29/08

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