SHALE HYDRATION INHIBITORS AND SUBTERRANEAN TREATMENT FLUIDS CONTAINING THEM
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United States of America Patent
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Issued Date -
Mar 28, 2024
app pub date -
Feb 1, 2022
filing date -
Feb 4, 2021
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Abstract
Method for inhibiting the swelling and/or the dispersion of shales during the treatment of subterranean shale formations comprising the steps of: a) providing a subterranean treatment fluid comprising from 0.001 to 10% by weight of a polyester obtained by reacting a dicarboxylic acid having from 2 to 8 carbon atoms with a specific alkoxylated diamine; b) introducing said treatment fluid into a wellbore at a pressure sufficient to treat the subterranean shale formations.
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