Wells – Processes – Chemical inter-reaction of two or more introduced materials
Patent
1983-07-28
1984-10-30
Suchfield, George A.
Wells
Processes
Chemical inter-reaction of two or more introduced materials
166281, 166307, E21B 4327
Patent
active
044795432
ABSTRACT:
A method for acidizing siliceous subterranean formations wherein the acidizing composition penetrates the formation to a greater extent before spending comprising injecting into the formation first an organosilane or an ester of an organosilane, preferably in a hydrocarbon carrier liquid, and thereafter an aqueous acidizing composition containing (1) a non-oxidizing mineral acid, acid precursor, low molecular weight organic acid or halogenated derivative thereof, and (2) a fluorine-containing acid or salt.
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Kalfayan Leonard J.
Watkins David R.
Floyd Gerald L.
Sandford Dean
Suchfield George A.
Union Oil Company of California
Wirzbicki Gregory F.
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