Acid diverting system containing quaternary amine

Details Acid diverting system containing quaternary amine Acid diverting system containing quaternary amine

2006-10-03

2006-10-03

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S215000, C507S216000, C507S214000, C507S240000, C507S222000, C507S268000, C507S269000, C507S277000, C166S282000

Reexamination Certificate

active

07115546

ABSTRACT:
A process for stimulating a formation is disclosed wherein a diverting fluid is used to divert an acid treatment package from a high permeability or damaged portion of a formation to a low permeability or undamaged portion of a formation. The fluid, which preferably forms vesicles, comprises at least one surfactant, at least one quaternary amine polyelectrolyte, water, and a non-aqueous solvent.

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Scott M. McCarthy, et al.,The Successful Use of Polymer-Free Diverting Agents for Acid Treatments in the Gulf of Mexico, Feb. 20-21, 2002 (presented at Society of Professional Engineers Inc. International Symposium and Exhibition on Formation Damage Control in Lafayette, Louisiana) (SPE 73704).

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