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:
Jul. 14, 2015
Filed:
Nov. 30, 2009
Matthew Robert George Bell, Dallas, TX (US);
David S. Wesson, Dallas, TX (US);
Nathan Garret Clark, Mansfield, TX (US);
John Thomas Hardesty, Dallas, TX (US);
Matthew Robert George Bell, Dallas, TX (US);
David S. Wesson, Dallas, TX (US);
Nathan Garret Clark, Mansfield, TX (US);
John Thomas Hardesty, Dallas, TX (US);
GEODYNAMICS, INC., Millsap, TX (US);
Abstract
By substantially eliminating the crushed zone surrounding a perforation tunnel and expelling debris created upon activation of a shaped charge with first and second successive explosive events, the need for surge flow associated with underbalanced perforating techniques is eliminated. The break down of the rock fabric at the tunnel tip, caused by the near-instantaneous overpressure generated within the tunnel, further creates substantially debris-free tunnels in conditions of limited or no underbalance as well as in conditions of overbalance.