System and apparatus for creating a liquid carbon dioxide fracturing fluid

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United States of America Patent

PATENT NO 9896922
SERIAL NO

13724907

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Abstract

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A method, system, and apparatus required for creating a mixture of dry proppant and liquid carbon dioxide (LCO2) for fracturing oil and gas formations is presented. The operation includes making a mixture of dry proppant and liquid carbon dioxide (LCO2) for use in a fracturing operation by supplying dry proppant that is pressurized to between 75 and 600 psia with a gas; further supplying a stream of sub-cooled LCO2 having a pressure substantially equal to that of the pressurized dry proppant; and adding dry, pressurized proppant to the stream of sub-cooled LCO2, thereby forming a mixed LCO2 and proppant fracturing slurry.

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Patent Owner(s)

  • PRAXAIR TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Degenstein, Nick Joseph East Amherst, US 6 71
Kelly, Richard M East Amherst, US 24 66
Neu, Bernard Thomas Lancaster, US 12 390

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