海上底水稠油油藏油水相渗特征实验及影响因素研究  

Study on characteristics of oil‑water phase permeability andits influencing factors in bottom water heavy oil reservoirs

作　　者：周伟强 郑继龙[2,3] 赵军 张勋 ZHOU Weiqiang;ZHENG Jilong;ZHAO Jun;ZHANG Xun(Engineering Technology Branch of CNOOC Energy Development Co.,Ltd.,Tianjin 300459,China;CNOOC Energy Development Co.,Ltd.,Clean Energy Branch,Tianjin 300459,China;Zhanjiang Survey&Design Co.,Ltd.CONHW,Zhanjiang 524057,China;Third Oil Production Plant of Petro China Changqing Oilfield Company,Yan'an 717500,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300459 [2]中海油能源发展股份有限公司清洁能源分公司,天津300459 [3]湛江南海西部石油勘察设计有限公司,广东湛江524057 [4]中国石油长庆油田公司第三采油厂,陕西延安717500

出　　处：《精细石油化工进展》2023年第2期35-38,共4页Advances in Fine Petrochemicals

摘　　要：海上稠油油田大部分都伴随着边水或底水,底水稠油油藏生产特征为含水率上升快、采出程度低,从而影响油田产量。为了更好地了解底水稠油油藏水驱开发特点,为后期方案调整及提高采收率技术决策提供依据,针对底水稠油油藏地质特点和流体性质,利用物理模拟实验方法,开展了底水稠油油藏条件下油水相对渗透率实验研究,对比了稳态法与非稳态法2种相渗实验方法的差异性,并分析了底水稠油油藏相渗曲线特征。研究表明,油水相渗曲线主要表现为油相水相相对渗透率总体偏低并呈现凸型、油相相对渗透率下降幅度快、油水共渗点低,且稳态法相渗曲线形态更为准确,可为该类型油藏动态预测及精细挖潜提供参考。Most offshore heavy oil reservoirs are accompanied by edge water or bottom water,and the production characteristics of bottom water heavy oil reservoirs are characterized by rapid rise of water cut and low recovery degree,thus affecting the oilfield output.To better understand the characteristics of the bottom water reservoir water flooding of heavy oil development,to provide basis for decisions of improving oil recovery technology for bottom water reservoir geological characteristics and fluid properties of heavy oil,using the method of physical simulation experiment,under a bottom water of heavy oil reservoir oil-water relative permeability experiment was carried out,compared with the differences of two methods of relative permeability experiment,and the characteristics of bottom water relative permeability curve of heavy oil reservoir were analyzed.The phase permeability experiment shows that the oil-water permeability curve was mainly characterized by three characteristics:the relative permeability of oil phase was generally low and convex,the relative permeability of oil phase declined rapidly,and the common permeability of oil and water was low,which provided reference for the dynamic prediction and fine potential exploitation of this type of reservoir.

关 键 词：底水稠油油藏 相渗特征 油水相对渗透率 剩余油开发 

分 类 号：TE53[石油与天然气工程—油气田开发工程]