Abstract
AbstractUsing 1,8‐dihydroxynaphthalene, thionyl chloride and long‐chain tertiary amine as the main raw materials, a facile preparation method and formulation of a rigid double‐tailed surfactant for clean fracturing fluid were developed. The temperature resistance test and the determination of hydrogen spectrum reveal that the clean fracturing fluid with the prepared surfactant as thickener has excellent salt and temperature resistance. The shear viscosity of the best product at 120°C and 170 s−1 is not less than 65 mPa s, which meets the requirements of 25 mPa s for the field construction of clean fracturing fluid.
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