Modified polygalactomannans as oil field shale inhibitors
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United States of America Patent
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Jul 8, 1997
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app pub date -
Aug 13, 1996
filing date -
Sep 13, 1994
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Abstract
Polygalactomannans containing a hydrophilic substituent and a hydrophobic substituent are useful as oil shale inhibitor compositions in oil well drilling fluids.
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