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.

Patent No.:

US 10584538 B1

Date of Patent:

Mar. 10, 2020

Filed:

Jul. 21, 2015

Reamer

Applicant:

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

Inventors:

Jonathan Robert Hird, Cambridge, GB;

Ashley Bernard Johnson, Cambridge, GB;

Gokturk Tunc, Houston, TX (US);

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);

Attorney:

Primary Examiner:

Jennifer H Gay

Int. Cl.

CPC ...

E21B 10/32 (2006.01); E21B 10/43 (2006.01); E21B 10/46 (2006.01); E21B 10/567 (2006.01);

U.S. Cl.

CPC ...

E21B 10/322 (2013.01); E21B 10/43 (2013.01); E21B 10/46 (2013.01); E21B 10/567 (2013.01);

Abstract

A reamer for enlarging an underground borehole comprises a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool, and each cutter assembly comprises a supporting structure and a plurality of hard faced cutters (-) embedded therein with a hard face of each cutter exposed and facing in a direction of rotation of the tool. Each cutter assembly includes at least one outward-facing gauge surface (), at a radial distance from the tool axis which aligns the gauge surface with the radially outer extremity () of at least one cutter. This gauge surface () extends () in the direction of rotation circumferentially ahead of the extremity of the exposed face of the aligned at least one cutter. It may meet the side of the assembly at a curved () or bevelled () edge and may also extend back from the exposed face of the cutter. These gauge surfaces aligned with the extremity of the cutter prevent the reamer from pivoting around the extremity of a cutter which has snagged on the borehole wall and thus stabilize the rotation within the borehole.

Find Patent Forward Citations

Hird, Jonathan. (2020). Reamer (U.S. Patent No. 10584538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10584538

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