The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 10, 2025

Filed:

Oct. 12, 2022
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Yermek Kaipov, Dhahran, SA;

Yakov Dzhalatyan, Moscow, RU;

Mikhail Charupa, Dhahran, SA;

Hadrien Dumont, Paris, FR;

Bertrand Claude Theuveny, Paris, FR;

Abilkassym Kishauov, Moscow, RU;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); E21B 21/06 (2006.01); E21B 49/10 (2006.01);
U.S. Cl.
CPC ...
E21B 21/067 (2013.01); E21B 49/087 (2013.01); E21B 49/10 (2013.01);
Abstract

Methods and systems for conveying a WFT via drill pipe within a wellbore penetrating a subterranean formation and setting two packers of the WFT on opposite sides of a zone of interest of the formation, thereby isolating an interval of an annulus between the WFT and a wall of the wellbore. DTT of the formation is then performed by operating two WFT pumps of the WFT to pump fluid from the formation via the isolated interval, through the WFT, and out of the WFT to the wellbore, while operating mud pumps to pump drilling mud into the wellbore and thereby convey a mixture of the drilling mud and the pumped formation fluid through the annulus to a mud gas separator. Gas from the mud gas separator is used to measure a surface production rate of the formation fluid.


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