Method for clay stabilization
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United States of America Patent
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Mar 30, 1999
Grant Date -
N/A
app pub date -
Aug 15, 1997
filing date -
Aug 15, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is provided an additive for and a method of using the additive to treat a clay-containing earthen formation, such as a subterranean formation, to substantially reduce formation damage caused by contact of the formation with an aqueous liquid foreign to the formation. The additive, which is employed in a water solution, is comprised of a chloride-free, quaternary ammonium compound which can be used without adverse affect upon animal, soil and water resources due to the chloride-free and substantial organic nature thereof. It thus biodegrades to environmentally acceptable end products.
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