缝洞型油藏多尺度裂缝模拟方法
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摘要
该文提出了含有多个尺度裂缝的缝洞型油藏的数值模拟方法:采用嵌入式方法模拟大尺度裂缝,采用等效的方法模拟中小尺度裂缝和溶蚀孔洞。通过编制程序,实现了地质模型中溶蚀孔洞模型及溶洞模型与大尺度裂缝片的融合。将整个模型分成若干个裂缝元素和等效介质元素,进而可用非结构网格有限体积法进行模拟。该方法可以充分利用模型各种尺度裂缝的信息,准确刻画油藏中大裂缝内流体流动特征,又可以保证油藏规模模拟的需要。
A simulation method which can consider various scale cracks for fractured vuggy reservoir is presented. Theembedded method is used to simulate large scale fractures, and the equivalent method is used to simulate small scale fractures.Through the programming, the discrete large scale fracture piece model can merged with the equivalent karst cave model and thesolution vug model. The whole model is divided into many fracture elements and equivalent medium elements, which can thenbe simulated by the finite volume method of non-structural meshes. The method that can make full use of the information ofvarious scale fractures and accurately describe characteristics of fluid flow in large cracks of oil reservoirs and can guarantee thedemand of reservoir scale simulation.
A simulation method which can consider various scale cracks for fractured vuggy reservoir is presented. Theembedded method is used to simulate large scale fractures, and the equivalent method is used to simulate small scale fractures.Through the programming, the discrete large scale fracture piece model can merged with the equivalent karst cave model and thesolution vug model. The whole model is divided into many fracture elements and equivalent medium elements, which can thenbe simulated by the finite volume method of non-structural meshes. The method that can make full use of the information ofvarious scale fractures and accurately describe characteristics of fluid flow in large cracks of oil reservoirs and can guarantee thedemand of reservoir scale simulation.
引文
[1]刘永辉.缝洞型碳酸盐岩油藏渗透率等效计算方法研究[D].中国石油大学,青岛,中国,2010.LIU Yong-hui.The research of equivalent permeability calculation for fracture-vuggy carbonate reservoir[D].China University of Petroleum,Qingdao,China,2010.
[2]张娜,姚军,黄朝琴,等.基于离散缝洞网络模型的缝洞型油藏混合多尺度有限元数值模拟[J].计算力学学报,2015,32(4):473-478.ZHANG Na,YAO Jun,HUANG Zhao-qin,et al.Multiscale mixed finite element numerical simulation for fractured-vuggy reservoir based DFVN model[J].Chinese Journal of Computational Mechanics,2015,32(4):473-478.
[3]彭朝阳,龙武,杜志敏,等.缝洞型油藏离散介质网络数值试井模型[J].西南石油大学学报,2010,32(6):125-129.PENG Chao-yang,LONG Wu,DU Zhi-min,et al.The numerical well test model of the discrete media network in fractured-vuggy carbonate reservoir[J].Journal of Southwest Petroleum University(Science&Technology edition),2010,32(6):125-129.
[4]黄朝琴,姚军,王月英,等.基于离散裂缝模型的裂缝性油藏注水开发数值模拟[J].计算物理,2011,28(1):41-49.HUANG Zhao-qin,YAO Jun,WANG Yue-ying,et al.Numerical simulation on water flooding development of fractured reservoirs in a discrete fracture model[J].Computational Physics,2011,28(1):41-49.
[5]KARIMI-FARD M,DURLOFSKY L J,AZIZ K.An efficient discrete fracture model applicable for general purpose reservoir simulators[J].SPE J,2004,9(2):227-236.
[6]SLOUGH K J,SUDICKY E A,FORSYTH P A.Numerical simulation of multiphase flow and phase partitioning in discretely fractured geologic media[J].Journal of Contaminant Hydrology,1999(40):107-136.
[7]THERRIEN R,SUDICKY E A.Three-dimensional analysis of variably-saturated flow and solute transport in discretely-fractured porous media[J].Journal of Contaminant Hydrology,1996(23):l-44.
[8]胡向阳,袁向春,侯佳根,等.多尺度岩溶相控碳酸盐岩缝洞型油藏储集体建模方法[J].石油学报,2014,35(2):340-346.HU Xiang-yang,YUAN Xiang-Chun,HOU Jia-gen,et al.Modeling method of carbonate fracture-cavity reservoirs using multiscale karst facies-controlling[J].Acta Petrolei Sinica,2014,35(2):340-346.
[9]胡向阳,李阳,权莲顺,等.碳酸盐岩缝洞型油藏三维地质建模方法--以塔河油田四区奥陶系油藏为例[J].石油天然气地质,2013,34(3):383-387.HU Xiang-yang,LI Yang,QUAN Lian-shun,et al.Three-dimensional geological modeling of fracturedvuggy carbonate reservoirs-a case from the Ordovician reservoirs in Tahe-IV block,Tahe oilfield[J].Oil&Gas Geology,2013,34(3):383-387.
[10]严侠,黄朝琴,姚军,等.基于模拟有限差分的嵌入式离散裂缝数学模型[J].中国科学:技术科学,2014,44(12):1333-1342.YAN Xia,HUANG Zhao-Qin,YAO Jun,et al.The embeded discrete fracture model based on mimetic finite difference method[J].Scientia Sinica Technologica,2014,44(12):1333-1342.
[11]高艳霞,李小波,彭小龙,等.缝洞型油藏大尺度缝洞体等效模拟方法研究[J].长江大学学报:自科版.2016,13(14):66-69.GAO Yan-xia,LI Xiao-bo,PENG Xiao-long,et al.The equivalent simulation of big size cavity-fracture in cavity-fractured reservoirs[J].Journal of Yangtze University:Natural Science Edition,2016,13(14):66-69.
[12]KANG Z J,WU Y S.Modeling multiphase flow in naturally fractured vuggy petroleum reservoirs[C].The2006 SPE Annual Technical Conference and Exhibition.Texas,USA,2006.
[13]WU Y S,LIU H H,BODVARSSON G S..A triplecontinuum approach for modeling flow and transport processes in fractured rock[J].Journal of Contaminant Hydrology,2004,73(1):145-179.
[14]张冬丽,李江龙.缝洞型油藏流体流动数学模型及应用进展[J].西南石油大学学报:自然科学版,2009,31(6):66-70.ZHANG Dong-li,LI Jiang-long.A research progress on mathematic model and application of fluid flow for carbonate vuggy reservoir[J].Journal of Southwest Petroleum Institute,2009,31(6):66-70.
[15]康志江.缝洞型复杂介质油藏数值模拟方法[J].大庆石油地质与开发,2013,32(2):29-32.KANG Zhi-jiang.Numerical simulation method for the fractured cave oil reservoirs with complicated media[J].Petroleum Geology and Oilfields Development in Daqing,2013,32(2):29-32.
[16]康志江,赵艳艳,张冬丽,等.缝洞型碳酸盐岩油藏数值模拟基础理论与应用[J].大庆石油地质与开发,2011,30(5):68-71.KANG Zhi-jiang,Zhao Yan-yan,ZHANG Dong-li.Basic theory and application of numerical simulation in fractured-vuggy carbonate reservoir[J].Petroleum Geology and Oilfields Development in Daqing,2011,30(5):68-71.
[17]康志江.缝洞型碳酸盐岩油藏耦合数值模拟新方法[J].新疆石油地质,2010,31(5):514-516.KANG Zhi-jiang.New method of coupling numerical simulation and application to fracture-cavern carbonate reservoir[J].Xinjiang Petroleum Geology,2010,31(5):514-516.
[18]邸元,彭浪,吴玉树,等.缝洞型多孔介质中多相流的有限体积法数值模拟[J].计算力学学报,2013,30(6):144-149.DI Yuan,PENG Lang,WU Yu-shu,et al.Numerical simulation of multiphase flow in fractured vuggy porous medium using finite volume method[J].Chinese Journal of Computational Mechanics,2013,30(6):144-149.
[2]张娜,姚军,黄朝琴,等.基于离散缝洞网络模型的缝洞型油藏混合多尺度有限元数值模拟[J].计算力学学报,2015,32(4):473-478.ZHANG Na,YAO Jun,HUANG Zhao-qin,et al.Multiscale mixed finite element numerical simulation for fractured-vuggy reservoir based DFVN model[J].Chinese Journal of Computational Mechanics,2015,32(4):473-478.
[3]彭朝阳,龙武,杜志敏,等.缝洞型油藏离散介质网络数值试井模型[J].西南石油大学学报,2010,32(6):125-129.PENG Chao-yang,LONG Wu,DU Zhi-min,et al.The numerical well test model of the discrete media network in fractured-vuggy carbonate reservoir[J].Journal of Southwest Petroleum University(Science&Technology edition),2010,32(6):125-129.
[4]黄朝琴,姚军,王月英,等.基于离散裂缝模型的裂缝性油藏注水开发数值模拟[J].计算物理,2011,28(1):41-49.HUANG Zhao-qin,YAO Jun,WANG Yue-ying,et al.Numerical simulation on water flooding development of fractured reservoirs in a discrete fracture model[J].Computational Physics,2011,28(1):41-49.
[5]KARIMI-FARD M,DURLOFSKY L J,AZIZ K.An efficient discrete fracture model applicable for general purpose reservoir simulators[J].SPE J,2004,9(2):227-236.
[6]SLOUGH K J,SUDICKY E A,FORSYTH P A.Numerical simulation of multiphase flow and phase partitioning in discretely fractured geologic media[J].Journal of Contaminant Hydrology,1999(40):107-136.
[7]THERRIEN R,SUDICKY E A.Three-dimensional analysis of variably-saturated flow and solute transport in discretely-fractured porous media[J].Journal of Contaminant Hydrology,1996(23):l-44.
[8]胡向阳,袁向春,侯佳根,等.多尺度岩溶相控碳酸盐岩缝洞型油藏储集体建模方法[J].石油学报,2014,35(2):340-346.HU Xiang-yang,YUAN Xiang-Chun,HOU Jia-gen,et al.Modeling method of carbonate fracture-cavity reservoirs using multiscale karst facies-controlling[J].Acta Petrolei Sinica,2014,35(2):340-346.
[9]胡向阳,李阳,权莲顺,等.碳酸盐岩缝洞型油藏三维地质建模方法--以塔河油田四区奥陶系油藏为例[J].石油天然气地质,2013,34(3):383-387.HU Xiang-yang,LI Yang,QUAN Lian-shun,et al.Three-dimensional geological modeling of fracturedvuggy carbonate reservoirs-a case from the Ordovician reservoirs in Tahe-IV block,Tahe oilfield[J].Oil&Gas Geology,2013,34(3):383-387.
[10]严侠,黄朝琴,姚军,等.基于模拟有限差分的嵌入式离散裂缝数学模型[J].中国科学:技术科学,2014,44(12):1333-1342.YAN Xia,HUANG Zhao-Qin,YAO Jun,et al.The embeded discrete fracture model based on mimetic finite difference method[J].Scientia Sinica Technologica,2014,44(12):1333-1342.
[11]高艳霞,李小波,彭小龙,等.缝洞型油藏大尺度缝洞体等效模拟方法研究[J].长江大学学报:自科版.2016,13(14):66-69.GAO Yan-xia,LI Xiao-bo,PENG Xiao-long,et al.The equivalent simulation of big size cavity-fracture in cavity-fractured reservoirs[J].Journal of Yangtze University:Natural Science Edition,2016,13(14):66-69.
[12]KANG Z J,WU Y S.Modeling multiphase flow in naturally fractured vuggy petroleum reservoirs[C].The2006 SPE Annual Technical Conference and Exhibition.Texas,USA,2006.
[13]WU Y S,LIU H H,BODVARSSON G S..A triplecontinuum approach for modeling flow and transport processes in fractured rock[J].Journal of Contaminant Hydrology,2004,73(1):145-179.
[14]张冬丽,李江龙.缝洞型油藏流体流动数学模型及应用进展[J].西南石油大学学报:自然科学版,2009,31(6):66-70.ZHANG Dong-li,LI Jiang-long.A research progress on mathematic model and application of fluid flow for carbonate vuggy reservoir[J].Journal of Southwest Petroleum Institute,2009,31(6):66-70.
[15]康志江.缝洞型复杂介质油藏数值模拟方法[J].大庆石油地质与开发,2013,32(2):29-32.KANG Zhi-jiang.Numerical simulation method for the fractured cave oil reservoirs with complicated media[J].Petroleum Geology and Oilfields Development in Daqing,2013,32(2):29-32.
[16]康志江,赵艳艳,张冬丽,等.缝洞型碳酸盐岩油藏数值模拟基础理论与应用[J].大庆石油地质与开发,2011,30(5):68-71.KANG Zhi-jiang,Zhao Yan-yan,ZHANG Dong-li.Basic theory and application of numerical simulation in fractured-vuggy carbonate reservoir[J].Petroleum Geology and Oilfields Development in Daqing,2011,30(5):68-71.
[17]康志江.缝洞型碳酸盐岩油藏耦合数值模拟新方法[J].新疆石油地质,2010,31(5):514-516.KANG Zhi-jiang.New method of coupling numerical simulation and application to fracture-cavern carbonate reservoir[J].Xinjiang Petroleum Geology,2010,31(5):514-516.
[18]邸元,彭浪,吴玉树,等.缝洞型多孔介质中多相流的有限体积法数值模拟[J].计算力学学报,2013,30(6):144-149.DI Yuan,PENG Lang,WU Yu-shu,et al.Numerical simulation of multiphase flow in fractured vuggy porous medium using finite volume method[J].Chinese Journal of Computational Mechanics,2013,30(6):144-149.
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