Tool and method for establishing hydraulic communication with a subsurface safety valve

Australia Patent

PATENT NO 2008216269
APP PUB NO AU-2008216269-A1
SERIAL NO

2008216269

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Abstract

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A communication tool apparatus is described which is adapted to provide selective communication of control fluid through a downhole device such as a safety valve. The downhole safety valve is a tubing retrievable subsurface safety valve ('TRSSSV'). The communication tool may be run downhole and within the TRSSSV. Once within the TRSSSV, the communication tool apparatus activates a cutting device (55) within the TRSSSV such that communication of control fluid through the TRSSSV is possible. The cutter does not have to be axially aligned with the component (110) to be cut but is rotated through 360 degrees by means of an indexing mechanism. A replacement safety valve run on a wireline may then be inserted into the TRSSSV and be operated via the control fluid line, as a new communication path created by the communication tool described herein.

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