ENVIRONMENTAL FRIENDLY FRACTURING AND STIMULATION COMPOSITION AND METHOD OF USING THE SAME
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United States of America Patent
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Aug 16, 2011
Grant Date -
Sep 8, 2011
app pub date -
Jan 15, 2011
filing date -
Mar 2, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A non-toxic, environmentally friendly, green flowback aid is disclosed that reduces water blockage when injected into a fractured reservoir. The composition includes an water soluble ester of a low molecular weight alcohol and a low molecular weight organic acid, an oil soluble ester of a low molecular weight alcohol and a high molecular weight fatty acid, one or more water soluble or dispersible nonionic surfactant(s) derived from vegetable or animal sources, one or more anionic or amphoteric surfactant(s) derived from animal or vegetable based sources, and, water. Compositions for low temperature applications are also disclosed that can remain fluid down to −41 ° F.
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