Research and development on thickener for fracturing fluid prepared by coalbed methane flowback water and application
Guan Baoshan
Liu Yuting
Liang Li
Wang Ling
Abstract：In order to realize a recycling utilization of the fracturing flowback water in the mining process of the coalbed methane well,the Gemini surfactant GM with benzene ring was designed and synthesized.The quality concentration of the Gemini surfactant GM affected to the system viscosity,heat resistance and shear resistance performances and bactericidal performances were investigated.The test results showed that when the quality concentration of the GM reached 2％,the viscosity could be 114 mPa · s.Under the shearing rate condition of 49.0 s-1,the crosslinked gel formed would have a shearing of 500 s and the viscosity would be kept stable at 80 mPa · s.When the quality concentration of the Gemini surfactant GM was 0.05％,the bactericidal rate would be over 98％.The Gemini surfactant GM would have a good compatibility to the other additives.The gel-breaking would be complete and a less harm would be occurred to the reservoir.
Keywords：coalbed methaneflowback watersurfactantfracturing fluid
Publication Date：2017-01-01
Pages：5( 90-94 )