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:
May. 28, 2019

Filed:

Sep. 19, 2016
Applicant:

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

Inventors:

Steven E. Buchanan, Pearland, TX (US);

Lennox E. Reid, Jr., Houston, TX (US);

Rachel Lavaure, Le Plessis Robinson, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/06 (2006.01); E21B 25/16 (2006.01); E21B 4/04 (2006.01);
U.S. Cl.
CPC ...
E21B 49/06 (2013.01); E21B 4/04 (2013.01); E21B 25/16 (2013.01);
Abstract

A coring bit assembly for conveyance via wireline or drillstring in a wellbore extending into a subterranean formation. The coring bit assembly includes a coring shaft and a thrust ring coupled to an end of the coring shaft. A static sleeve is disposed inside the coring shaft and having a flange coupled to the thrust ring to space the static sleeve from the coring shaft to form a drilling fluid passageway between the coring shaft and the static sleeve. An axial fluid pump is disposed on the coring shaft to engage with the static sleeve to drive drilling fluid through the drilling fluid passageway formation.


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