摘要
胜利油田微生物采油技术历经二十多年的室内研究和现场试验,机理研究取得深入认识,技术体系日趋完善,已进入工业化应用阶段。微生物界面趋向性、嗜烃乳化、界面润湿改性等主导驱油机理认识更加深入,并实现了量化表征,为菌种(群)改造和调控指明了方向;建立系统的油藏菌群结构分子生物学分析、采油功能菌激活调控、三维物理模拟驱油等微生物采油技术体系;现场试验从单井吞吐到微生物驱,从外源微生物到内外源微生物共同作用,近几年通过微生物+其它工艺组合的方式大幅提高了该技术油藏适应性。目前已进入全面先导实验向工业化应用的转化阶段。截至2019年12月胜利油田微生物驱油已实施10个区块,累积增油量为30×10^(4) t。微生物驱技术在沾3普通水驱稠油油藏现场试验取得成功的基础上,又在辛68高温高盐稠油油藏和草13热采低效稠油油藏微生物驱现场试验取得突破。针对不同类型稠油油藏建立了微生物复合气体等复合吞吐工艺,扩大微生物单井吞吐技术应用规模,到2019年12月已实施400余口油井单井吞吐,累积增油量为8×10^(4) t。
More than 20 years of laboratory experiments and field trials have yielded in-depth understanding of the mecha⁃nism and a comprehensive system for the microbial enhanced oil recovery(MEOR)technology in Shengli Oilfield,and the technology has been applied to industrial production.The dominant EOR mechanisms,such as microbial interface tropism,hydrocarbon-philic emulsification,and interface wetting modification have been studied thoroughly and characterized quantitatively,pointing out a direction for the transformation and regulation of bacterial species(groups).We have estab⁃lished a MEOR system integrating molecular biological analysis of flora structure in reservoirs,activation and regulation of functional bacteria for oil production,and three-dimensional physical simulation of oil displacement.The MEOR field tri⁃als develop from single well huff-n-puff to microbial flooding and from the single investigation of exogenous microorgan⁃isms to the comprehensive study of both endogenous and exogenous microorganisms.In recent years,the adaptability of this technology in reservoirs has been greatly improved through the combination of MEOR and other EOR technologies.At the moment,it has embarked on transformation from pilot tests to industrial applications.As of December 2019,MEOR was ap⁃plied to the 10 zones in Shengli Oilfield,with a cumulative oil increase of 30×10^(4) t.Besides the effective MEOR field trials in heavy oil reservoirs of Block Zhan3 which was used to be exploited by conventional water-flooding,the MEOR have been made breakthroughs in a high-temperature and high-salinity heavy oil reservoir of Block Xin68 and a heavy oil reservoir subject to inefficient thermal recovery of Block Cao13.For different types of heavy oil reservoirs,complex huff-n-puff technologies,such as those for microbial compound gas,have been developed,enabling a wider application of microbial sin⁃gle well huff-n-puff technology.As of December 2019,MEOR technology had been applied in more than 400 oil wells with single we
作者
林军章
汪卫东
胡婧
吴晓玲
谭晓明
丁明山
曹功泽
LIN Junzhang;WANG Weidong;HU Jing;WU Xiaoling;TAN Xiaoming;DING Mingshan;CAO Gongze(Institute of Petroleum Engineering and Technology,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257000,China;Key Laboratory of Microbial Enhanced Oil Recovery,SINOPEC,Dongying City,Shandong Province,257000,China)
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2021年第2期18-26,共9页
Petroleum Geology and Recovery Efficiency
关键词
微生物采油
微生物驱
单井吞吐
采油机理
胜利油田
MEOR
microbial flooding
single well huff-n-puff
oil recovery mechanism
Shengli Oilfield
