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. 02, 2009
Filed:
Sep. 20, 2007
J. Ernest Brown, Katy, TX (US);
John W. Still, Richmond, TX (US);
Diankui Fu, Missouri City, TX (US);
Zhijun Xiao, Sugar Land, TX (US);
Wayne Frenier, Tulsa, OK (US);
J. Ernest Brown, Katy, TX (US);
John W. Still, Richmond, TX (US);
Diankui Fu, Missouri City, TX (US);
Zhijun Xiao, Sugar Land, TX (US);
Wayne Frenier, Tulsa, OK (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.