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:
Aug. 28, 2007
Filed:
Jun. 14, 2005
Philip Kneisl, Pearland, TX (US);
Philip Kneisl, Pearland, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for perforating a wellbore comprises placing a perforating device in a cased wellbore that passes through a subterranean formation. The perforating device comprises at least one explosive perforating charge that can be detonated in order to perforate the casing and allow the formation fluids to enter the wellbore. A perforating fluid is placed in the wellbore between the perforating device and the casing. The ratio of the critical temperature of the perforating fluid in ° K and the temperature of the subterranean formation adjacent to the casing in ° K is between about 1.0-1.3. When the at least one explosive charge in the perforating device is detonated, at least one perforation is formed in the casing, and at least a portion of the perforating fluid is forced into the subterranean formation.