Congratulations to CNPC USA Corporation

Ramey & Schwaller wishes to congratulate its client CNPC USA on issuance of U.S. Patent Number 10,450,501 titled METHOD FOR A FRACTURING FLUID SYSTEM AT HIGH TEMPERATURES on October 22, 2019. The patent relates to The method for well – stimulation through a wellbore in a rock formation is hydraulic fracturing under high temperature conditions . The method includes injecting a fracturing fluid system to the rock formation ; fracturing the rock formation at a temperature between 150 – 260 degrees Celsius ; and recovering fluid components of the fracturing fluid system from the wellbore and setting the proppant in the fractures . The fracturing fluid system includes proppant and a plurality of fluid components . The fluid components can include water , a gelling agent , and a stabilizer made of ascorbic acid ranging from 50 – 100 ppt so as to adjust pH and delay said cross linking agent .

Ramey & Schwaller is a full-service intellectual property law firm working with an international client base from our Houston, Texas office. We are dedicated to enhancing client results through efficient practice management, innovative technologies and skilled professionals.

2019-10-22 US10450501_Page_01

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