Stable organic-based fluid loss additive containing an organophilic clay-based suspending agent for use in a well
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United States of America Patent
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Nov 4, 2014
Grant Date -
Aug 23, 2012
app pub date -
Apr 27, 2012
filing date -
Jun 7, 2010
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Abstract
A well treatment composition comprises: a water-soluble, organic liquid, wherein the organic liquid: (A) comprises the continuous phase of the well treatment composition; and (B) comprises a polyglycol or a derivative of polyglycol; a fluid loss additive, wherein the fluid loss additive: (A) is insoluble in the organic liquid; and (B) comprises a high molecular weight, water-swellable polymer; and a suspending agent, wherein the suspending agent comprises an organophilic clay, wherein the well treatment composition has an activity of at least 15%. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) the well treatment composition; and allowing the cement composition to set after introduction into the subterranean formation.
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