鲁克沁深层稠油油藏空气泡沫驱技术实践  

Practice of air foam flooding in the Lukeqin deep heavy oil reservoir

作　　者：朱永贤 张明敏 张凯[3] 谢佃和 汪小涛 周洪涛[2,3] ZHU Yongxian;ZHANG Mingmin;ZHANG Kai;XIE Dianhe;WANG Xiaotao;ZHOU Hongtao(Research Institute of Exploration and Development,PetroChina Tuha Oilfield Company,Hami 839000,Xinjiang,China;MOE Key Laboratory of Unconventional Oil and Gas Development,China University of Petroleum(East China),Qingdao 266580,Shandong,China;School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China)

机构地区：[1]中国石油吐哈油田分公司 [2]非常规油气开发教育部重点实验室·中国石油大学(华东) [3]中国石油大学(华东)石油工程学院

出　　处：《石油钻采工艺》2022年第3期348-353,共6页Oil Drilling & Production Technology

基　　金：中石油重大试验项目“鲁克沁稠油减氧空气泡沫驱重大开发试验”(编号:2017E-0409)。

摘　　要：鲁克沁三叠系稠油油藏采用常温水驱开发,由于注入水黏性指进,开发效果逐年变差,为提高油田整体开发效益,开展了深层稠油油藏泡沫驱提高采收率矿场试验。根据油藏条件筛选出耐高温耐高盐起泡剂,结合其他矿场试验优化了发泡气体选择与注入参数,并在YD203井区采用段塞交替注入方式实施减氧空气泡沫驱矿场试验。YD203井区内19口井4年内见效率达到89%,整体含水下降39.5%,累计增油超过2.0万t,预计提高油田采收率6.8%。该研究对进一步提高鲁克沁深层稠油油田采收率、实现油田可持续发展具有重要指导意义。The Lukeqin Triassic heavy oil reservoir is recovered via normal-temperature water flooding.However,due to the viscous fingering of injected water,the recovery performance was degraded year by year.To improve the overall development efficiency of the oilfield,the field testing of foam flooding-based EOR of deep heavy oil reservoirs was performed.The high temperature-tolerant high salinity-resistant foaming agent was selected according to the reservoir conditions and the foaming gas and injection parameters were optimized.Then,the field testing of the oxygen-reduced air foam flooding was performed in the YD203 well district in a slug alternating injection pattern.For 19 wells of the YD203 well district,the effective rate for 4 years was 89%,the overall water cut decreased by 39.5%,the cumulative oil production increment exceeded 20000 tons,and the estimated recovery factor of the oilfield was 6.8%.The findings of this research provide important guidance for further improving the recovery factor of the Lukeqin deep heavy oil reservoir and achieving the sustainable development of the oilfield.

关 键 词：深层稠油 减氧空气泡沫驱 提高采收率 鲁克沁油田 

分 类 号：TE345[石油与天然气工程—油气田开发工程] TE357