Apparatus and method for creating a fluid communication line in a downhole environment
Abstract:
Method and apparatus for creating a fluid communication line in a downhole environment between an annular chamber and a throughbore of a tool. The tubular wall therebetween is provided with circumferentially arranged recesses extending into the wall to provide selected thin-walled sections for perforation by a communication tool. The communication tool has two oppositely arranged punch heads, one aligned with a recess and the other between neighbouring recesses giving an orientationless configuration in operation. An embodiment for creating a fluid communication line through a tubing retrievable safety valve for operation of a wireline retrievable safety valve located therein is described.
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