Multi-function completion tool

Details Multi-function completion tool Multi-function completion tool

2007-10-31

2010-06-08

Neuder, William P (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S332400

Reexamination Certificate

active

07730944

ABSTRACT:
A multi-functional completion tool which may be lowered into a wellbore coupled to a length of tubing, and then utilized to test various lengths of the tubing at pressure. The tool may also function as a positive plug and may also be used to set the packer, and is also useable as a tubing self-filling tool. Various retention elements are disposed within the tool and configured to release at predetermined pressures, or within predetermined ranges of pressure, thereby transforming the tool from a first configuration to a second configuration depending on the desired function. The tool may also contain a pressure-regulating assembly for regulating the differential pressure across the assembly. The tool may also include an indicator assembly for confirming that the tool has entered a plugging configuration, typically by altering a pressure within the tubing, such alteration being detectible at a surface location.

REFERENCES:
patent: 5641023 (1997-06-01), Ross et al.
patent: 7377321 (2008-05-01), Rytlewski
patent: 7472750 (2009-01-01), Walker et al.
patent: 2008/0236842 (2008-10-01), Bhavsar et al.

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