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:
Jul. 01, 2025

Filed:

Apr. 23, 2022
Applicants:

Robert Jacob, Blois, FR;

Régine Jacob, Blois, FR;

Inventors:

Gregoire Max Jacob, Houston, TX (US);

Sylvain Bedouet, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/128 (2006.01); E21B 23/08 (2006.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1285 (2013.01); E21B 23/08 (2013.01); E21B 34/06 (2013.01); E21B 2200/05 (2020.05); E21B 2200/08 (2020.05);
Abstract

A fluid-activated shifting tool includes a fluid entry valve, a piston, a fluid pressure chamber and a relief pressure chamber. The piston can shift and provide a force relative to the toolstring using the pressure differential created between the pressure within the fluid pressure chamber compared to the pressure within the relief pressure chamber. The fluid entry valve provides a temporary fluid entry barrier between the well fluid and the fluid pressure chamber. At a selected depth within the wellbore, the fluid entry valve can be actuated, providing well fluid hydrostatic pressure inside the fluid pressure chamber. The shifting force of the piston can be used to acuate or set a plug within a tubing string of the wellbore.


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