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:
Sep. 22, 2026

Filed:

Mar. 19, 2025
Applicant:

Baker Hughes Oilfield Operations Llc, Houston, TX (US);

Inventors:

Steven Craig, Spring, TX (US);

Bennie Jackson Lindsey, The Woodlands, TX (US);

Nauman Mhaskar, Cypress, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/12 (2006.01); E21B 34/14 (2006.01);
U.S. Cl.
CPC ...
E21B 34/14 (2013.01); E21B 2200/06 (2020.05);
Abstract

A work string performs a method of circulating a fluid in a borehole. The work string includes a sub includes a housing having a first section including a first flow bore and a second section including a second flow bore, a valve between the first flow bore and the second flow bore, at least one slot at a side of the housing in the first section, a sleeve movable within the first flow bore, the sleeve having an end proximate the valve and at least one opening along its side, and a linear actuator for moving the sleeve. The linear actuator places the sleeve in a position at which the end of the sleeve closes the valve and fluid flows from the first flow bore to a region outside of the housing through the at least one opening.


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