胜利油田未动储量开发技术及实践  

Development technologies and practice of undeveloped reserves in Shengli Oilfield

作　　者：田同辉[1] 孟阳[2] 石世革[2] 王伟[1] TIAN Tonghui;MENG Yang;SHI Shige;WANG Wei(Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China;Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257001,China)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257015 [2]中国石化胜利油田分公司,山东东营257001

出　　处：《油气地质与采收率》2024年第5期122-129,共8页Petroleum Geology and Recovery Efficiency

基　　金：中国石化科技攻关项目“特低渗透油藏未开发储量效益开发关键技术”(P24021)。

摘　　要：胜利油田未动储量规模大,是油田后续建产稳产的重要接替阵地。但多年的开发实践证实,这部分储量的整体动用存在很多问题,制约着油藏效益开发和建产。针对这部分油藏品位差、动用难度大和开发效果差的特点,系统梳理了胜利油田未动储量的类型及分布特征,明确了主要的未动储量类型和重点攻关目标。结合近年来在砂砾岩、滩坝砂和深层低渗透稠油等油藏类型方面的开发实践,分析了砂砾岩油藏大斜度井大规模压裂、低渗透滩坝砂油藏压驱和深层低渗透稠油油藏降黏复合压驱等3种主要的未动储量开发技术及实践。长井段大斜度井大规模压裂技术,通过地质工程一体化实现工程甜点与地质甜点的结合,在低品位砂砾岩油层中的应用大幅提高了油藏产能;压驱注水开发技术创新开发理念,实现了低渗透滩坝砂油藏补能增产的突破;降黏复合压驱开发技术通过转变开发思路,实现了深层低渗透稠油油藏效益开发的突破。这3种油藏类型从单井提产、油藏补能和低成本开发等方面实现了未动储量的有效动用,取得了良好的开发效果。开发技术的突破、开发理念的转变是未动储量有效开发的必由之路,对胜利油田其他未动储量的开发具有非常重要的示范和指导意义。Shengli Oilfield has a large scale of undeveloped reserves,which is an important backup for the sustainable production of the oilfield.However,many years of development practice show that there are lots of problems in the overall development of these reserves,which restricts the economic development and production of the reservoir.In view of the characteristics of some res-ervoirs with low grade,difficult production,and poor development effect,the types and distribution characteristics of undeveloped reserves in Shengli Oilfield were systematically sorted out,and the main types of undeveloped reserves and key research objectives were defined.Based on the development practice in recent years in the reservoirs such as glutenites,beach bar sands,and deep low-permeability heavy oil,the paper analyzed three main technologies for undeveloped reserves,including large-scale fracturing of wells with high inclination in glutenite reservoirs,pressure flooding in low-permeability beach bar sand reservoirs,and cold produc-tion of heavy oil reservoirs by chemical viscosity reduction.The large-scale fracturing technology of wells with long sections and high inclination combined engineering sweet spots and geological sweet spots through the geology and engineering integration,and its application in the glutenite oil reservoirs with low grade has greatly improved reservoir productivity.The innovative development concept of pressure-driven water injection technology has achieved a breakthrough in replenishing energy and increasing the produc-tion of beach bar sand reservoirs with low-permeability.The development technology of viscosity reduction combined with pressure flooding has achieved a breakthrough in the economic development of deep heavy oil reservoirs with low-permeability by changing the development idea.These three reservoir types have been effectively produced of undeveloped reserves from single well produc-tion,reservoir energy replenishment,and low-cost development and have achieved good development results.The break

关 键 词：未动储量 低品位 砂砾岩 滩坝砂 稠油 

分 类 号：TE349[石油与天然气工程—油气田开发工程]