Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2007-09-17
2008-12-02
Bagnell, David J (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C166S250070, C166S250170, C073S152550
Reexamination Certificate
active
07458420
ABSTRACT:
A system and method is provided to measure a pressure or other characteristic at a source (e.g. a hydraulic power supply) and in or near a downhole tool. A comparison of the measurements is then made to verify that the system is operating according to desired parameters. In specific applications, the comparison can be made to ensure the supply of hydraulic fluid is reaching the downhole tool.
REFERENCES:
patent: 6915848 (2005-07-01), Thomeer et al.
patent: 2003/0131990 (2003-07-01), Tubel et al.
patent: 2004/0060696 (2004-04-01), Schultz et al.
Brockman Mark W.
Cho Brian W.
Gambier Philippe
Rioufol Emmanuel
Bagnell David J
Coy Nicole
Kurka James L.
Schlumberger Technology Corporation
Someren Robert Van
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