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:
Nov. 24, 2015
Filed:
Feb. 11, 2013
Applicant:
Baker Hughes Incorporated, Houston, TX (US);
Inventors:
Charles Elmer Bell, Rockwall, TX (US);
Harold Dean Brannon, Magnolia, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01); C09K 8/68 (2006.01); C09K 8/80 (2006.01); C09K 8/90 (2006.01);
U.S. Cl.
CPC ...
E21B 43/267 (2013.01); C09K 8/685 (2013.01); C09K 8/80 (2013.01); C09K 8/805 (2013.01); C09K 8/90 (2013.01);
Abstract
Subterranean formations, such as tight gas formations, may be subjected to hydraulic fracturing by introducing into the formation a fracturing fluid of an aqueous fluid, a hydratable polymer, a crosslinking agent and proppant. The fluid enters the reservoir through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that at in situ conditions: