强碱三元复合体系与大庆原油乳化作用  

STRONG-BASE ASP COMPOUND SYSTEM AND DAQING OIL EMULSIFICATION

作　　者：蒋姗姗[1,2] 张云[3] 卢祥国[3] 徐典平[4] 孙刚[5] 李亚光 

机构地区：[1]海洋石油高效开发国家重点实验室,北京100028 [2]中海油研究总院技术研发中心,北京100028 [3]东北石油大学提高油气采收率教育部重点实验室,黑龙江大庆163318 [4]大庆油田有限责任公司复合驱项目部,黑龙江大庆163712 [5]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [6]大庆方兴油田开发有限责任公司,黑龙江大庆163453

出　　处：《大庆石油地质与开发》2015年第2期121-125,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：大庆油田有限责任公司重点科技攻关课题"喇嘛甸油田三元复合驱油水界面张力在油层中分布规律研究"(DQYT-0506003-2013-JS-201)

摘　　要：通过收集喇嘛甸、萨尔图和杏树岗等油田水驱目的层原油进行组分分析,开展了强碱三元复合体系与原油乳状液稳定性、药剂在油相中损耗量以及碱、表面活性剂和聚合物对乳状液稳定性影响研究。结果表明:喇嘛甸油田原油黏度、含蜡量和含胶量较高且酸性活性组分种类和数量较多,碱在油相中损耗量较多,乳状液稳定性较强;当原油中重质组分含量较高且碳链分布范围较广时,重烷基苯磺酸盐类表面活性剂在原油中损耗较大,乳状液稳定性较强;单一碱液与原油作用生成W/O型乳状液,"碱/表面活性剂"二元和"碱/表面活性剂/聚合物"三元复合体系与原油作用生成O/W型乳状液。The researches on the stability of the compound system and the strong base, wastage of the agents in the oil phase and effects of the alkali, surfactant and polymer on the lactescence stability are conducted through collecting and analyzing the crude oils from the target layers of Lamadian, Saertu, Xingshugang Oilfields and so on. The study results show that the crude oil from Lamadian Oilfield has the characteristics of rather higher viscosity, higher paraffin content and higher gel content, and moreover the more kinds and quantities of the acid active components. The lactescence stability is pretty, higher and the wastage of the alkali in the oil phase is larger; With the higher content of the heavy components and wider range of the carbon chains, the wastage of the heavy alkyl benzene sul-fonate surfactant in the crude oil is larger and the stability of the lactescence is higher; the single-base liquid acts with the oil and generates W/O-type emulsion, while the binary composite system of ＂alkali/surfactant＂ and ternary compound system of ＂alkali/surfactant/polymer＂ produce 0/W-type emulsion.

关 键 词：强碱三元复合体系 原油组分 乳状液 稳定性 析水率 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]