Clay stabilizing agent preparation and use
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United States of America Patent
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-
Sep 15, 1987
Grant Date -
N/A
app pub date -
Jun 25, 1986
filing date -
Jun 25, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods of preparing and using a clay stabilizing agent are provided. The agent is prepared by polymerizing diallyldimethylammonium chloride with sulfur dioxide in the presence of a polymerization reaction rate retarder to form a solid cationic copolymer having a high sulfur content. When dissolved in an aqueous carrier fluid, the copolymer is particularly effective in preventing clay swelling and/or fines migration.
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