| 摘要 |
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 t o 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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