作　　者： ; ; ; ; ; ;

机构地区： 中国石油天然气集团公司

出　　处： 《应用化工》 2011年第10期1683-1685,共3页

摘　　要： 在表面活性剂提高采收率原理基础上,对HD界面特性及岩心驱油实验进行了研究。结果表明,在一定条件下,HD浓度在0.025%～0.30%的较宽范围内均可使矿化度为6 823 mg/L的油田污水形成10-3mN/m数量级的超低界面张力。同时,加入适量添加剂HDSY,使达到最低界面张力的时间缩短(原来40 min,现为15 min)到原来的63.5%,且效果均优越于单一HD体系。复合体系驱替实验结果表明,在水驱含水达95%以后,还可继续提高原油采收率24.25%。 On the base of surfactant enhanced oil recovery,the HD interface characteristics and core flooding experiments were studied.The results showed that HD can make ultra-low interfacial tension of water and oil under concentrations from 0.025% to 0.30% in the salinity of 6 823 mg/L.The lowest interfacial tension of the time（the original 40 min,first for 15 min） is the 63.5% of original,and the results were superior to a single by additive HDSY.It showed that the water flooding after water up to 95% can continue to improve oil recovery 24.25% by composite flooding system.

关 键 词： 表面活性剂 添加剂 驱油体系 提高采收率

领　　域： [石油与天然气工程]