辽河油田超稠油生产井降粘助排工艺技术研究与应用

发布时间：2018-01-07 02:35

  本文关键词：辽河油田超稠油生产井降粘助排工艺技术研究与应用　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： 辽河油田 超稠油生产井 降粘助排 复配

【摘要】：本课题是在辽河油田超稠油生产井原油物性分析的基础上,研发一种具有耐高温、低表面张力和快速渗透等特点的超稠油生产井降粘助排剂,并通过完善降粘助排剂配套施工工艺,改善辽河油田超稠油生产井开发效果,对同类超稠油油藏的开发具有重要的实践意义和指导作用。本文通过复配非离子表面活性剂、阴离子表面活性剂、混合型表面活性剂、快速渗透剂等,研发了一种新型的降粘助排剂。该降粘助排剂具有优良的耐温、乳化性能,能够满足超稠油蒸汽吞吐开发需要；同时该降粘助排剂还具有改变地层岩石润湿性的功能,有利于油井的后续开发,不会对后续集输脱水造成影响,可通过实施泡沫调剖工艺,来改善水平段吸汽不均的矛盾。室内评价试验和动态管道流动模拟试验结果表明,其性能指标均满足辽河油田超稠油生产井降粘助排要求。降粘助排剂技术指标：耐温性-300℃,粘度(30℃)：50-100mPa.s,表面张力≤28mN/m(30℃,0.5%水溶液),降粘率≥95%(300℃,24h后,0.5%水溶液),发泡体积≥500ml (100ml 0.5%的水溶液)。截止2015年3月为止,该降粘助排剂已进行现场试验95井次,使用后油井回采水率大幅提高,累计增油1.08万吨。
[Abstract]:Based on the analysis of crude oil physical properties of super heavy oil production wells in Liaohe Oilfield, a viscosity reducing and drainage agent is developed for super heavy oil production wells with the characteristics of high temperature resistance, low surface tension and rapid permeability. And through perfecting the matching construction technology of viscosity reducing and drainage agent, improving the development effect of super heavy oil production well in Liaohe Oilfield. In this paper, Nonionic surfactants, anionic surfactants, mixed surfactants, rapid permeators, etc. A new viscosity reducing and drainage aid has been developed, which has excellent temperature resistance and emulsification performance, and can meet the needs of steam huff and puff development of super heavy oil. At the same time, it has the function of changing the wettability of formation rock, which is beneficial to the subsequent development of oil wells, and will not affect the subsequent gathering and transportation dehydration. Therefore, the foam profile control process can be implemented. Indoor evaluation test and dynamic pipeline flow simulation test results show that. The performance indexes all meet the requirements of viscosity reduction and drainage in the production wells of super heavy oil in Liaohe Oilfield. The technical indexes of viscosity and drainage aid are: temperature tolerance -300 鈩，

本文编号：1390638