APPLICATION OF DEGRADABLE FIBERS IN INVERT EMULSION FLUIDS FOR FLUID LOSS CONTROL
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United States of America Patent
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Aug 9, 2012
app pub date -
Apr 20, 2012
filing date -
Jun 17, 2009
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Abstract
A method of treating a subterranean formation including emplacing in a wellbore a fluid, comprising an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, and at least one bridging material, and contacting the formation with the fluid. A method and apparatus related to an invert emulsion fluid loss pill including an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, wherein the degradable material hydrolyzes to release an organic acid, and at least one bridging material.
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