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作 者:付亚荣[1] 马永忠[1] 底国彬[2] 郭淑琴[1] 靳海鹏
机构地区:[1]华北石油管理局第五采油厂,河北辛集052360 [2]华北石油管理局勘察设计研究院,河北任丘052552
出 处:《油田化学》1999年第3期206-208,共3页Oilfield Chemistry
摘 要:为解决冀中南部 10 多个稠油油藏原油粘度高、开采难度大的问题,开发了应用 H R V 系列乳化降粘剂开采此类油藏的新方法,解决了稠油在地层、井筒难以流动的问题,而且使稠油的地面输送简单化。现场应用表明, H R V 系列稠油乳化降粘剂使用浓度小,乳化效率高、降粘效果好,同时不影响原油破乳,具有较大的推广使用价值。These HRV viscosity reducers are developed for recovering the viscous crude oil in disrcrete small reservoirs with thin pay zones. Of these, HRV 1 is composed of a demulsifier for W/O emulsions and special solvents for resin asphaltenes and wax and suitable to crude of water cut >20%; HRV 2 reacts with the organic acids in crude to give complex surface active substances, which promote the formation of O/W emulsions and is suitable to crude of zero or low water cut. The emulsifying efficiency, viscosity reducing capacity at 45℃, waxing inhibiting capacity (for HRV 1) and influence on dehydration of crude by various demulsifiers are determined and investigated. The successful usage in 25 wells since July 1995 are described.
关 键 词:乳化降粘剂 稠油开采 HRV系列 降粘 化学驱油
分 类 号:TE345[石油与天然气工程—油气田开发工程] TE357.46
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