Clay stabilization during oil and gas well cementing operations
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United States of America Patent
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Jul 19, 1983
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N/A
app pub date -
Apr 20, 1981
filing date -
Apr 20, 1981
priority date (Note) -
Expired
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Abstract
A process for treating a subterranean formation with an aqueous cement composition and minimizing damage to formation permeability by said composition filtrate comprising mixing with said composition at least one polycationic polymer having a molecular weight of about 400 to 6,000,000 prior to treating said formation.
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