The invention relates to an improved water reservoir water injection capacity of low permeability oilfield and its application of resistance reducing agent, comprising: (a) content of 0.8 ~ 8% amine compound (b) content of 1.2 ~ 12% compound carboxylate (C), content of quaternary ammonium compound cationic surfactant 1.7 - 17%, (d) content of 0.4 ~ 4% alkyl polyol ether surfactant, the balance of water, used in water flooding resistance reducing agent, single well dosage 8 to 10 tons, with concentration of 2000 ~ 5000mg / L, water pressure is reduced from 2 to 5MPa, the ability of stable water valid for at least 12 months, and the interfacial tension of the crude oil in the stratum can reach 10, mN = 1 / m magnitude.
【技术实现步骤摘要】
【技术保护点】
一种油田注水降阻剂,其特征在于:其组成包括:(a)重量含量为0.8~8%的胺化合物,(b)重量含量为1.2~12%的复合羧酸盐,(C)重量含量为1.7~17%的复合季铵盐阳离子表面活性剂,(d)重量含量为0.4~4%的含烷基多元醇醚的复配表面活性剂,余量为水。
【技术特征摘要】
【专利技术属性】
技术研发人员:武平仓,吕晓玲,王小琳,
申请(专利权)人:中国石油天然气股份有限公司,
类型:发明
国别省市:11[中国|北京]
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