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 .
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