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:
May. 29, 2012
Filed:
May. 19, 2010
James B. Crews, Willis, TX (US);
Tianping Huang, Spring, TX (US);
Allen D. Gabrysch, Houston, TX (US);
James H. Treadway, Magnolia, TX (US);
John R. Willingham, Cypress, TX (US);
Patrick A. Kelly, Conroe, TX (US);
William R. Wood, Spring, TX (US);
James B. Crews, Willis, TX (US);
Tianping Huang, Spring, TX (US);
Allen D. Gabrysch, Houston, TX (US);
James H. Treadway, Magnolia, TX (US);
John R. Willingham, Cypress, TX (US);
Patrick A. Kelly, Conroe, TX (US);
William R. Wood, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids and particularly as fracturing fluids for subterranean formations. These VES-based fluids have faster and more complete clean-up than polymer-based fracturing fluids. The use of an internal breaker permits ready removal of the unique VES micelle based pseudo-filter cake with several advantages including reducing the typical VES loading and total fluid volume since more VES fluid stays within the fracture, generating a more optimum fracture geometry for enhanced reservoir productivity, and treating reservoirs with permeability above the present VES limit of approximately 400 md to at least 2000 md.