The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2018
Filed:
Dec. 21, 2012
Richard M. Kelly, East Amherst, NY (US);
Nick Joseph Degenstein, East Amherst, NY (US);
Bernard Thomas Neu, Lancaster, NY (US);
Richard M. Kelly, East Amherst, NY (US);
Nick Joseph Degenstein, East Amherst, NY (US);
Bernard Thomas Neu, Lancaster, NY (US);
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Abstract
A method, system, and apparatus required for creating a mixture of dry proppant and liquid carbon dioxide (LCO) for fracturing oil and gas formations is presented. The operation includes making a mixture of dry proppant and liquid carbon dioxide (LCO) 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 LCOhaving a pressure substantially equal to that of the pressurized dry proppant; and adding dry, pressurized proppant to the stream of sub-cooled LCO, thereby forming a mixed LCOand proppant fracturing slurry.