Method for single-stage treatment of siliceous subterranean formations

Method for single-stage treatment of siliceous subterranean formations

−+In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fl...

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Hauptverfasser: Frenier, Wayne W, Fu, Diankui, Davies, Stephen Nigel, Ziauddin, Murtaza, Xiao, Zhijun, Lecerf, Bruno, Bulte, Helene, Fuller, Michael J
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creator Frenier, Wayne W
Fu, Diankui
Davies, Stephen Nigel
Ziauddin, Murtaza
Xiao, Zhijun
Lecerf, Bruno
Bulte, Helene
Fuller, Michael J
description −+In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F) by weight of the fluid and from 2% or less of sodium (Na) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.
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title Method for single-stage treatment of siliceous subterranean formations
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