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:
Nov. 12, 2024

Filed:

Sep. 07, 2021
Applicant:

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

Inventors:

Gregory Giem, Houston, TX (US);

Benjamin Jean Yvon Durand, Houston, TX (US);

Joshua Wurtz, Houston, TX (US);

Robert Kyle Wiesenborn, Richmond, TX (US);

Joseph Casassa, Sugar Land, TX (US);

Rodrigo Feliu, Katy, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 27/00 (2006.01); E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
E21B 29/005 (2013.01); E21B 27/00 (2013.01);
Abstract

A milling system may be used to remove the portions of a failed valve that is blocking the wellbore. When milling a partially open valve obstructing the wellbore, the target material to be removed may not be present at the central axis of the wellbore causing the target material to not fully surround the milling bit, which may cause the bit to be deflected away from the target during milling reducing milling efficiency. The disclosed milling system may be used to mill out and capture the coupon for any downhole obstruction that does not have any material near the center axis of the wellbore. A first embodiment of the milling system may be configured to fully mill out material within the wellbore while a second embodiment may be used to mill out material within the wellbore and further catch the milled material or coupon.


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