钻井液与完井液2025，Vol.42Issue(3)：406-412,7.DOI:10.12358/j.issn.1001-5620.2025.03.018
耐盐防膨水性乳液降阻剂合成及其性能
Synthesis and Performance of a Salt Resistant Swelling Preventive Aqueous Emulsion Drag Reducer
摘要
Abstract
Common inverse emulsion drag reducers have poor salt resistance and hence are unable to be formulated with high salinity formation water and water flowed back in formation fracturing operations.These drag reducers are generally single-functioned,expensive and contain oil phase that causes formation damage.To solve these problems,a new salt-resistant swelling-preventive oil-free aqueous emulsion drag reducer has been developed through aqueous dispersion polymerization.Laboratory evaluation with friction tester and rheometer of the new drag reducer in a slick water system showed that this drag reducer has good stability,and is able to instantly dissolve in water in 15 seconds.The cationicity of the drag reducer is 15.98%.A fracturing fluid formulated with 100,000 mg/L saltwater has viscosity that is not affected by the high salinity of the saltwater.The drag reducer works normally at temperatures up to 180℃.A slick water formulated with this drag reducer was used in field operation,the drag of the slick water was reduced by 82%and swelling inhibition capacity was enhanced by at least 60%.With this drag reducer,high drag reduction rate,online formulation and clay swelling inhibition can be simultaneously achieved,the so-called"one additive with multifunction".This study has provided a new clue for simplifying fracturing fluid formulation process,lowering operation cost and developing new fracturing fluids with enhanced fracturing efficiencies.关键词
耐盐降阻剂/防膨/分散聚合/滑溜水/丙烯酰胺Key words
Salt resistant drag reducer/Swelling prevention/Dispersion polymerization/Slick water/Acrylamide分类
能源科技引用本文复制引用
黄静..耐盐防膨水性乳液降阻剂合成及其性能[J].钻井液与完井液,2025,42(3):406-412,7.基金项目
中石化科技部项目"页岩气超级滑溜水压裂液攻关与应用"(P23193) （P23193）
国家科技重大专项"新一代复杂储层改造关键技术与装备"课题2"多功能型压裂液体系与高性能材料研发"(2024ZD1404702). （2024ZD1404702）
