抗温封堵防塌剂可以有效地降低钻井液的高温高压滤失量。由于引进了磺酸钠基，水化作用强，缔合水的键能高，增强了它的水溶性，对于巩固井壁，防塌、防卡具有重要作用。
       High-temperature anti-salt anti-collapse fluid loss agent an effectively reduce the HTHP fluid loss of the drilling fluid. Since contains the sulfonate group, it has strong hydration ability, and has high bond energy with association of water, enhancing its solubility in water. It has good performance for wellbore stability, anti wellbore collapse and anti sticking.