Wells – Processes – Chemical inter-reaction of two or more introduced materials
Patent
1978-03-10
1979-04-10
Novasad, Stephen J.
Wells
Processes
Chemical inter-reaction of two or more introduced materials
166307, 166308, 252855C, E21B 4326, E21B 4327
Patent
active
041483600
ABSTRACT:
Subterranean formations having temperatures between about 250.degree. F. and about 700.degree. F. are acidized by introducing a substantially anhydrous acid precursor through a well and into the formation, wherein the precursor hydrolyzes in situ to generate a hydrohalic acid. The acid precursor is a normally liquid, halogenated hydrocarbon having one or two carbon atoms per molecule which is thermally stable under the high temperature and pressure conditions encountered prior to hydrolysis.
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Farrell Daniel R.
Hartman Richard C.
Novasad Stephen J.
Sandford Dean
Suchfield George A.
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