Wells – Processes – Material placed in pores of formation to treat resident...
Patent
1990-09-28
1991-10-22
Suchfield, George A.
Wells
Processes
Material placed in pores of formation to treat resident...
166304, 166307, 252 8552, 252 8553, E21B 4327
Patent
active
050586785
ABSTRACT:
An aqueous acidic composition useful for conducting a formation acidizing method is disclosed. The composition, which is comprised of a blend of acetic acid, formic acid, a fatty alkyl quaternary ammonium salt, a fatty aralkyl quaternary ammonium salt and an alkanoic and/or alkenoic acid having at least four carbon atoms and at least two alcoholic hydroxyl groups per molecule, resists the formation of sludge, and insoluble ferric and calcium compounds.
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Dill Walter R.
Lane, Jr. James L.
Halliburton Company
Suchfield George A.
Weaver Thomas R.
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