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:
Feb. 18, 2014
Filed:
Nov. 12, 2009
Mathew M. Samuel, Sugar Land, TX (US);
Leiming LI, Sugar Land, TX (US);
Juliet Edwena Juel, Kuala Lumpur, MY;
Mathew M. Samuel, Sugar Land, TX (US);
Leiming Li, Sugar Land, TX (US);
Juliet Edwena Juel, Kuala Lumpur, MY;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A gelled organic-based fluid system and method of forming and using the system. The fluid system is prepared by gelling an organic solvent, a viscoelastic surfactant, and a nitrogen compound having a free electron pair such as urea in an amount effective to both increase viscosity and increase a rate of breaking the viscosity, relative to the gelled system without the nitrogen compound. In a further aspect, the method is used to treat a well penetrating a subterranean formation, for example, in a coiled tubing cleanout, or the like.