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. 23, 2010
Filed:
May. 29, 2002
Robert F. Farmer, Barrington, IL (US);
Andress K. Doyle, Pleasantville, NY (US);
Glenda Del Carmen Vale, Bethel, CT (US);
James F. Gadberry, Danbury, CT (US);
Michael D. Hoey, Maplewood, NJ (US);
Randy E. Dobson, Spring, TX (US);
Robert F. Farmer, Barrington, IL (US);
Andress K. Doyle, Pleasantville, NY (US);
Glenda Del Carmen Vale, Bethel, CT (US);
James F. Gadberry, Danbury, CT (US);
Michael D. Hoey, Maplewood, NJ (US);
Randy E. Dobson, Spring, TX (US);
Abstract
A method for controlling the rheology of aqueous systems, particularly for those intended for underground use, includes injecting an aqueous fluid containing a surfactant gelling agent into the system. The surfactant gelling agents are, for example, fatty aliphatic amidoamine oxides, salts of an alkoxylated monoamine with an aromatic dicarboxylic acid, and salts of an alkyldiamine with an aromatic dicarboxylic acid. The surfactant gelling agents can be absorbed onto particulate supports to facilitate delivery of the gelling agent. The additives may be incorporated in the viscoelastic fluid to tailor its use in hydraulic fluids, drilling muds, fracture fluids, and in applications such as permeability modification, gravel packing, cementing, and the like.