Compositions and methods of stabilizing subterranean formations containing reactive shales
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United States of America Patent
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Jun 22, 2010
Grant Date -
Nov 4, 2004
app pub date -
Jun 4, 2004
filing date -
Sep 6, 2002
priority date (Note) -
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Abstract
The present invention relates to well bore stabilization and, more particularly, to treatment fluids that may reduce the tendency of shales to swell and associated methods. In some embodiments, the present invention provides a method of stabilizing a subterranean formation that comprises a shale, the method comprising contacting the subterranean formation that comprises the shale with a treatment fluid, the treatment fluid comprising a base fluid, and a hydrophobically modified polymer. In other embodiments, the treatment fluids comprise a base fluid and a hydrophilically modified polymer. In yet other embodiments, the present invention provides shale-inhibiting components, treatment fluids, and methods of reducing the tendency of shale to swell when exposed to a treatment fluid.
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