Acidizing method
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United States of America Patent
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Mar 3, 1987
Grant Date -
N/A
app pub date -
Jun 28, 1985
filing date -
Jun 28, 1985
priority date (Note) -
Expired
status (Latency Note)
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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.
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