Foaming and silt suspending agent

Details Foaming and silt suspending agent Foaming and silt suspending agent

C - Chemistry, Metallurgy

09

K

31/14, 134/55

C09K 8/74 (2006.01) C09K 8/70 (2006.01) E21B 43/22 (2006.01)

Patent

CA 1091912

ABSTRACT A foaming and silt suspending agent is disclosed containing (A) at least one alkyltrimethylammonium chloride; (B) an amino oxide selected from the group consisting of bis-(2-hydroxyethyl) cocoamine oxide, dimethylhexadecylamine oxide, and dimethyl-hydrogenated tallowamine oxide; (C) an adduct of trimethyl-1-heptanol plus seven moles of ethylene oxide; and (D) a perfluorinated compound corresponding to the formula Image , wherein A- is Cl-, I-, F-, or Br-, preferably I-. The agent is particularly useful in a variety of aqueous based fluids of the type used in treating subterranean for- mations, including fluids containing other cationic additives such as certain acid inhibitors and clay stabil- ization agents which tend to impair the effectiveness of prior art agents.

308017

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