Well treatment fluids and methods for the use thereof
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United States of America Patent
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Jan 21, 2003
Issued Date -
N/A
app pub date -
Aug 25, 2000
filing date -
Aug 26, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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; (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; wherein the all or part of the fluid forms vesicles.
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