Drilling fluid component
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United States of America Patent
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May 22, 2007
Grant Date -
Sep 2, 2004
app pub date -
Feb 27, 2003
filing date -
Feb 27, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a method is provided for producing a water soluble polymer formed from a hydrophilic monomer for use as a relative permeability modifying polymer.
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