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:
Oct. 05, 2010

Filed:

Jun. 07, 2007
Applicants:

Martin P. Coronado, Cypress, TX (US);

Carl W. Stoesz, Houston, TX (US);

Luis E. Mendez, Houston, TX (US);

Inventors:

Martin P. Coronado, Cypress, TX (US);

Carl W. Stoesz, Houston, TX (US);

Luis E. Mendez, Houston, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 17/00 (2006.01); E21B 17/07 (2006.01); E21B 23/00 (2006.01); E21B 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Two subs are held in a fixed position relative to each other when assembled to a string and run into a wellbore. A reservoir of fluid is defined in a wall between the subs. The reservoir has one or more outlets connected by a short jumper line to an adjacent tool to be operated. At the appropriate time, set down weight breaks a shear pin to reduce the reservoir volume and create pressure in the exit lines. The exit lines can be connected to operating pistons in adjacent tools to actuate them or to perform other desired functions using a stream of pressurized fluid. The device can be set for one time or multiple cycles where fluid in the reservoir can be replenished and re-pressurized for multiple cycles of operation.


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