Patent · US Active

Single pump focused sampling

US8210260B2 · kind B2 · utility

14Cited by

101References

18Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Mark Milkovisch · Cypress, US
Alexander F. Zazovsky · Houston, US
Simon Ross · Ashford, GB

Key dates

Filing date	Jan 20, 2010
Grant date	Jul 3, 2012
Priority date	—
Expiry date	Aug 5, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/0009
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus comprising first and second fluid intakes, a pump, and a sample chamber, may be positioned in a borehole penetrating a subterranean formation. A method of use thereof may comprise drawing fluid from the subterranean formation and into the first and second fluid intakes using the pump, discharging into the borehole at least a portion of the fluid drawn into the second fluid intake, and selectively diverting at least a portion of the fluid drawn into the first fluid intake to the sample chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.