Multi-purpose downhole tool

Details Multi-purpose downhole tool Multi-purpose downhole tool

2007-11-20

2007-11-20

Williams, Hezron (Department: 2856)

Measuring and testing

Borehole or drilling

Pressure measurement

C166S250010

Reexamination Certificate

active

11121332

ABSTRACT:
A multi-purpose downhole tool comprising packers for isolating an interval of a downhole formation traversed by a borehole to form a packed-off interval annulus. The tool further comprises a reversible pump and more than one interval access port located between the packers. The ports provide fluid communication with fluid in the packed-off interval annulus. The tool further comprises a fluid conduit system and valves for controlling fluid communication between the interval access ports and the reversible pump. The multi-purpose tool is capable of pumping from the packed-off interval annulus as well as pumping into or “through” the packed-off interval annulus for determining formation pressures as well as introducing well enhancement fluids downhole.

REFERENCES:
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patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 5337821 (1994-08-01), Peterson
patent: 5549159 (1996-08-01), Shwe et al.
patent: 5991602 (1999-11-01), Sturm
patent: 6305470 (2001-10-01), Woie
patent: 6427530 (2002-08-01), Krueger et al.

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