Gilbert W Gregory

US Patent:

20060248949, Nov 9, 2006

Filed:

May 3, 2005

Appl. No.:

11/121332

Inventors:

Gilbert Gregory - Sugar Land TX, US
David Ball - Meadows Place TX, US
Russell Somers - Tomball TX, US
Jeffrey Grable - Houston TX, US
Clive Menezes - Conroe TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 47/06

US Classification:

073152510

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.