磺酸盐共聚物降滤失剂具有十分的耐高温、对于各种艰难的环境适应性很强的特点。可直接加入各种水基钻井液体系中，首次推荐加量为循环泥浆量的1%-2%，它一方面可吸附在粘土表面上形成吸附层，以阻止粘土颗粒絮凝变大；另一方面能把钻井液循环搅拌作用下所拆散的细颗粒通过吸附稳定下来，不再粘结成大颗粒。能够稳定井壁、降低钻井液粘度和滤失量，具有良好的高温稳定性和耐盐性，具有良好的降粘降滤失性能；无毒，有利于环保且保护油气层。该产品荧光级别低，不影响地质录井。
       The sulfonated copolymer fluid loss reducer has the characteristics of high temperature resistance and strong adaptability to various difficult environments. It can be added directly into all kinds of water-based drilling fluid systems. The first recommendation is to add 1%-2% of the circulating mud. On the one hand, it can be adsorbed on the clay surface to form an adsorption layer to prevent the clay particles from flocculation On the other hand, it can stabilize the dispersed fine particles by adsorption under the action of circulating stirring of drilling fluid, and no longer stick to form large particles. It can stabilize wellbore, reduce drilling fluid viscosity and filtrate loss, has good high temperature stability and salt resistance, has good viscosity and filtrate loss reduction performance, is non-toxic, is conducive to environmental protection and oil and gas reservoir protection. The product has low fluorescence level and does not affect geological logging.