Wells – Processes – Cementing – plugging or consolidating
Patent
1985-06-28
1987-03-03
Suchfield, George A.
Wells
Processes
Cementing, plugging or consolidating
166300, 166307, 252 8551, 252 8553, E21B 33138, E21B 4327
Patent
active
046468358
ABSTRACT:
Subterranean formations are treated with acid, by a method comprising the steps of: (1) forming an acidizing composition by mixing an aqueous acid component with at least one water-soluble organosilicon compound; and (2) injecting the composition into the formation. Suitable organosilicon compounds include water-soluble organosilanes and organosilanes which hydrolyze to form water-soluble silanols. By using the organosilicon compound, movement of formation fine particles is inhibited and swelling of clays by aqueous fluids is reduced, thus tending to maintain formation permeability.
REFERENCES:
patent: 4479543 (1984-10-01), Kalfayan et al.
patent: 4498538 (1985-02-01), Watkins et al.
patent: 4498539 (1985-02-01), Bruning
patent: 4552217 (1985-11-01), Wu et al.
patent: 4553597 (1985-11-01), Le Ribault et al.
Hewgill Gregory S.
Kalfayan Leonard J.
Watkins David R.
Franks Robert A.
Sandford Dean
Suchfield George A.
Union Oil Company of California
Wirzbicki Gregory F.
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