孔隙型碳酸盐岩油藏高含水期剩余油挖潜对策研究
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摘要
以国外某孔隙型碳酸盐岩油藏为例,开展孔隙型碳酸盐岩油藏在高含水期提高采收率方法的研究。首先分析储层内部的非均质性,精确描述隔夹层,建立精细地质模型。其次,通过流线模拟方法研究水线分布规律,弄清开发中存在的主要矛盾。最后,对剩余油分布规律进行总结,分析影响剩余油分布的主控因素,针对不同剩余油提出了相应的挖潜策略。通过对该孔隙型碳酸盐岩油藏开发方案的优化,使得最终采收率提高了2.5%。
Taking a foreign pore-type carbonate reservoir as an example,enhance recovery method was studied for pore-type carbonate reservoir at high water cut stage.Firstly,the heterogeneity is analyzed inside the reservoir.The interlayer distribution is analyzed,and a fine geological model is established.Then,the streamline simulation method is applied to study the displacement front distribution.The water flood problem and its principal contradiction is clarified during reservoir development.At last,the research on distribution law of remaining oil is carried out,and dominate factors which have the main influence on the formation of remaining oil are presented.The developed potential tapping strategy is also presented in correspondent with the distribution modes of remaining oil.By optimizing development plan,the oilfield development effect is greatly improved with the ultimate recovery rate increased by 2.5%.
Taking a foreign pore-type carbonate reservoir as an example,enhance recovery method was studied for pore-type carbonate reservoir at high water cut stage.Firstly,the heterogeneity is analyzed inside the reservoir.The interlayer distribution is analyzed,and a fine geological model is established.Then,the streamline simulation method is applied to study the displacement front distribution.The water flood problem and its principal contradiction is clarified during reservoir development.At last,the research on distribution law of remaining oil is carried out,and dominate factors which have the main influence on the formation of remaining oil are presented.The developed potential tapping strategy is also presented in correspondent with the distribution modes of remaining oil.By optimizing development plan,the oilfield development effect is greatly improved with the ultimate recovery rate increased by 2.5%.
引文
[1]计秉玉,廉培庆,谭学群,等.碳酸盐岩油藏地质建模与数值模拟技术[M].北京:科学出版社,2017:98-114.JI Bingyu,LIAN Peiqing,TAN Xuequn,et al.Carbonate reservoir Geological modeling and numerical simulation technology[M].Beijing:Science Press,2017:98-114.(in Chinese)
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[9]谭学群,廉培庆,邱茂君,等.基于岩石类型约束的碳酸盐岩油藏地质建模方法---以扎格罗斯盆地碳酸盐岩油藏A为例[J].石油与天然气地质,2013(4):558-563.TAN Xuequn,LIAN Peiqing,QIU Maojun,et al.Rock type-constrained geological modeling of carbonate reservoirs:a case study of carbonate reservoir A in the Zagros basin[J].Oil&Gas Geology,2013(4):558-563.(in Chinese)
[10]刘辉,董俊昌,刘扬,等.孔隙型碳酸盐岩储层注气注水提高采收率试验[J].中国石油大学学报(自然科学版),2013,37(1):104-108.LIU Hui,DONG Junchang,LIU Yang,et al.Experiments on gas and water injection for enhanced oil recovery in porous carbonate reservoir[J].Journal of China University of Petroleum(Edition of Natural Science),2013,37(1):104-108.(in Chinese)
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[12]刘大听,张淑娟.任丘碳酸盐岩潜山油藏剩余油分布研究[J].油气地质与采收率,2003,10(2):46-47.LIU Dating,ZHANG Shujuan.Study on the remaining oil distribution of carbonate buried hill reservoir in Renqiu[J].Oil&Gas Recovery Technology,2003,10(2):46-47.(in Chinese)
[13]王娟,王硕亮,康志宏,等.地质建模技术在克拉玛依组油藏的应用[J].中国科技论文,2017,12(21):2450-2456.WANG Juan,WANG Shuoliang,KANG Zhihong,et al.Applicaiton of geological modeling technology in Karamay oilfield[J].China Sciencepaper,2017,12(21):2450-2456.(in Chinese)
[14]赵伦,范子菲,宋珩,等.改善低渗碳酸盐岩油藏注水开发效果技术及应用[C]∥中国石油学会石油工程专业委员会2008年低渗透油田开发技术研讨会论文集.北京:石油工业出版社,2008:208-214.
[15]赵俊威,徐怀民,何翠,等.基于开发流体势场的低渗储层剩余油分布研究[J].中国科技论文,2016,11(15):1693-1698.ZHAO Junwei,XU Huaimin,HE Cui,et al.Research on remaining oil distribution in low permealility reservoir based on development fluid potential field[J].China Sciencepaper,2016,11(15):1693-1698.(in Chinese)
[2]张宁宁,何登发,孙衍鹏,等.全球碳酸盐岩大油气田分布特征及其控制因素[J].中国石油勘探,2014,19(6):54-65.ZHANG Ningning,HE Dengfa,SUN Yanpeng,et al.Distribution patterns and controlling factors of giant carbonate rock oil and gas fields worldwide[J].China Petroleum Exploration,2014,19(6):54-65.(in Chinese)
[3]白国平.世界碳酸盐岩大油田分布特征[J].古地理学报,2006,8(2):241-250.BAI Guoping.Distribution patterns of giant carbonate fields in the world[J].Journal of Palaeogeography,2006,8(2):241-250.(in Chinese)
[4]冯科.FQ孔隙型碳酸盐岩油藏注水及注气优选大模型实验研究[D].成都:西南石油大学,2016.FENG Ke.Experiment study of water and gas injection optimization by using big models of pore-type carbonate reservoir FQ[D].Chengdu:Southwest Petroleum University,2016.(in Chinese)
[5]苏海洋,廖长霖,李波,等.孔隙型碳酸盐岩油藏提高采收率驱油方式实验[J].油气地质与采收率,2016,23(1):90-95.SU Haiyang,LIAO Changlin,LI Bo,et al.Experiments on oil displacement method of enhanced oil recovery in porous carbonate reservoir[J].Petroleum Geology and Recovery Efficiency,2016,23(1):90-95.(in Chinese)
[6]黄兴,李天太,杨沾宏,等.孔洞型碳酸盐岩油藏不同开发方式物理模拟研究[J].断块油气田,2016,23(1):81-85.HUANG Xing,LI Tiantai,YANG Zhanhong,et al.Physical simulation for different development of vuggy carbonate reservoir[J].Fault-Block Oil&Gas Field,2016,23(1):81-85.(in Chinese)
[7]GOMES J S,RIBEIRO M T,CHRISTIAN J,et al.Carbonate reservoir rock typing-the link between geology and SCAL[C]∥Paper SPE 118284 Presented at Abu Dhabi International Petroleum Exhibition and Conference.Abu Dhabi,UAE:[s.n.],2008:SPE-118284-MS.
[8]TARIQ M,BIZARRO P,SOUSA A,et al.Reservoir characterization and modeling of a carbonate reservoircase study[C]∥Paper SPE 161039presented at Abu Dhabi International Petroleum Conference and Exhibition.Abu Dhabi,UAE:[s.n.],2012:SPE-161039-MS.
[9]谭学群,廉培庆,邱茂君,等.基于岩石类型约束的碳酸盐岩油藏地质建模方法---以扎格罗斯盆地碳酸盐岩油藏A为例[J].石油与天然气地质,2013(4):558-563.TAN Xuequn,LIAN Peiqing,QIU Maojun,et al.Rock type-constrained geological modeling of carbonate reservoirs:a case study of carbonate reservoir A in the Zagros basin[J].Oil&Gas Geology,2013(4):558-563.(in Chinese)
[10]刘辉,董俊昌,刘扬,等.孔隙型碳酸盐岩储层注气注水提高采收率试验[J].中国石油大学学报(自然科学版),2013,37(1):104-108.LIU Hui,DONG Junchang,LIU Yang,et al.Experiments on gas and water injection for enhanced oil recovery in porous carbonate reservoir[J].Journal of China University of Petroleum(Edition of Natural Science),2013,37(1):104-108.(in Chinese)
[11]吴聃,鞠斌山,陈常红,等.基于微观驱替实验的剩余油表征方法研究[J].中国科技论文,2015,10(23):2707-2710.WU Dan,JU Binshan,CHEN Changhong,et al.Research on characterization method for residual oil based on microscopic displacement experiments[J].China Sciencepaper,2015,10(23):2707-2710.(in Chinese)
[12]刘大听,张淑娟.任丘碳酸盐岩潜山油藏剩余油分布研究[J].油气地质与采收率,2003,10(2):46-47.LIU Dating,ZHANG Shujuan.Study on the remaining oil distribution of carbonate buried hill reservoir in Renqiu[J].Oil&Gas Recovery Technology,2003,10(2):46-47.(in Chinese)
[13]王娟,王硕亮,康志宏,等.地质建模技术在克拉玛依组油藏的应用[J].中国科技论文,2017,12(21):2450-2456.WANG Juan,WANG Shuoliang,KANG Zhihong,et al.Applicaiton of geological modeling technology in Karamay oilfield[J].China Sciencepaper,2017,12(21):2450-2456.(in Chinese)
[14]赵伦,范子菲,宋珩,等.改善低渗碳酸盐岩油藏注水开发效果技术及应用[C]∥中国石油学会石油工程专业委员会2008年低渗透油田开发技术研讨会论文集.北京:石油工业出版社,2008:208-214.
[15]赵俊威,徐怀民,何翠,等.基于开发流体势场的低渗储层剩余油分布研究[J].中国科技论文,2016,11(15):1693-1698.ZHAO Junwei,XU Huaimin,HE Cui,et al.Research on remaining oil distribution in low permealility reservoir based on development fluid potential field[J].China Sciencepaper,2016,11(15):1693-1698.(in Chinese)