Well treatment fluids and methods for the use thereof

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/138 (2006.01) C09K 8/62 (2006.01) C09K 8/72 (2006.01) C09K 8/76 (2006.01) E21B 43/267 (2006.01)

Patent

CA 2344507

This invention relates to a well treatment fluid and a method to treat an/or fracture a subterranean formation comprising: injecting a well treatment fluid into the formation at sufficient pressure to fracture the formation wherein the fluid comprises: (a) one or more amphoteric surfactants; (b) water; and (c) one or more nonaqueous solvents; (d) optionally, an acid forming compound, and (e) provided that if the acid forming compound is present a hydrophilic alcohol may also be optionally present.

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