System and method for controlled pumping in a downhole sampling tool

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11280188
APP PUB NO 20200248549A1
SERIAL NO

16852905

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A downhole tool designed to be disposed in a borehole of a subterranean formation that includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. The downhole tool also includes a sample flowline fluidly coupled to the probe and used to direct fluid through the downhole tool. The downhole tool further includes at least two volume chambers. These volume chambers each include a first side fluidly coupled to the sample flowline, a second side fluidly coupled to the guard flowline, and a piston separating the first side from the second side. The downhole tool is able to control a flow of fluid from a high pressure environment to a low pressure environment via the at least two volume chambers, the sample flowline, and the guard flowline.

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Patent Owner(s)

  • DOWELL -- A DIVISION OF SCHLUMBERGER TECHNOLOGY CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ayan, Cosan Istanbul, TR 40 589
Gisolf, Adriaan Bucharest, RO 53 315
Landsiedel, Nathan Sugar Land, US 20 103
Moelhoff, Kenneth Katy, US 4 23

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