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.:
Date of Patent:
Jun. 21, 2016
Filed:
Mar. 05, 2014
Applicant:
David Underdown, Conroe, TX (US);
Inventor:
David Underdown, Conroe, TX (US);
Assignee:
Chevron U.S.A. Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/11 (2006.01); E21B 43/116 (2006.01); E21B 43/119 (2006.01);
U.S. Cl.
CPC ...
E21B 43/116 (2013.01); E21B 43/1195 (2013.01);
Abstract
A method for controlling pressure in a wellbore during a perforating operation can include positioning a perforating tool within the wellbore, where the perforating tool comprises a gun and an energetic chamber. The method can also include igniting an energetic within the energetic chamber to generate a propellant. The method can further include igniting at least one charge within the gun, where the at least one charge is ignited toward a wall of the wellbore adjacent to the gun. The method can also include directing the propellant from the energetic chamber into the gun.