Foaming agent for subterranean formations treatment, and...

Details Foaming agent for subterranean formations treatment, and... Foaming agent for subterranean formations treatment, and...

2011-08-16

2011-08-16

Figueroa, John J (Department: 1765)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S202000, C507S211000, C507S217000, C507S219000, C507S267000, C507S271000, C507S273000, C507S276000, C166S308100

Reexamination Certificate

active

07998909

ABSTRACT:
A wellbore treatment fluid is formed from an aqueous medium, a gas component, a viscosifying agent, and a surfactant. The surfactant is represented by the chemical formula:in-line-formulae description="In-line Formulae" end="lead"?[R—(OCH2CH2)m—Oq—YOn]pXin-line-formulae description="In-line Formulae" end="tail"?wherein R is a linear alkyl, branched alkyl, alkyl cycloaliphatic, or alkyl aryl group; O is an oxygen atom; Y is either a sulfur or phosphorus atom; m is 1 or more; n is a integer ranging from 1 to 3; p is a integer ranging from 1 to 4; q is a integer ranging from 0 to 1; and X is a cation. The fluid may be used in treating a subterranean formation penetrating by a wellbore by introducing the fluid into the wellbore. The fluid may be used in fracturing a subterranean formation penetrated by a wellbore by introducing the fluid into the formation at a pressure equal to or greater than the fracture initiation pressure.

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patent: 0 899 415 (1999-03-01), None
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