基于离散裂缝网络模型的储层裂缝建模
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摘要
应用测井和地震资料分析储层裂缝在三维空间上的分布形态.首先对微电阻率成像测井EMI资料处理,人工识别出天然张开裂缝,计算裂缝的密度、长度、宽度、倾角、方位等参数,并生成LAS格式的数据;然后以GoCAD为软件平台,依据离散裂缝网络模型DFN原理,综合运用裂缝定量数据、测井数据和地震资料,建立普光气田碳酸盐岩储层裂缝地质模型.该模型客观地反映了储层裂缝的几何特征和分布形态,可为后续气藏数值模拟提供依据.
Well logging and seismic data are utilized to analyze the distribution of reservoir fractures in three-dimensional space.First,we identify natural fractures and calculate quantitative fracture parameters such as density,length,width,dip angle and strike after processing EMI data,and output them in LAS format which will be used in geological modeling.Then by making use of fracture parameters,well logging and seismic data,fracture model of carbonate reservoirs can be built up according to discrete fracture network theory on GoCAD software platform.This model not only precisely displays the geometrical features and distribution of fractures,but also serves as a base for subsequent numerical simulation.
Well logging and seismic data are utilized to analyze the distribution of reservoir fractures in three-dimensional space.First,we identify natural fractures and calculate quantitative fracture parameters such as density,length,width,dip angle and strike after processing EMI data,and output them in LAS format which will be used in geological modeling.Then by making use of fracture parameters,well logging and seismic data,fracture model of carbonate reservoirs can be built up according to discrete fracture network theory on GoCAD software platform.This model not only precisely displays the geometrical features and distribution of fractures,but also serves as a base for subsequent numerical simulation.
引文
[1]马永生,蔡勋育,李国雄.四川盆地普光大型气藏基本特征及成藏富集规律[J].地质学报,2005,79(6):858-865.
[2]王一刚.四川盆地二叠、三叠系环海槽礁、滩富气带勘探[J].天然气工业,2008,28(1):22-27.
[3]王建华.DFN模型裂缝建模新技术[J].断块油气田,2008,15(6):55-58.
[4]张允,袁向春,姚军,等.离散裂缝性油藏数值模拟方法[J].大庆石油学院学报,2010,34(3):80-85.
[5]杨辉廷,江同文,颜其彬,等.缝洞型碳酸盐岩储层三维地质建模方法初探[J].大庆石油地质与开发,2004,23(4):11-15.
[6]邱立伟,杨安平,康志江.新疆塔河裂缝溶洞型油藏储层建模研究[J].特种油气藏,2003,10(6):36-40.
[7]Warren J E,Root P J.The behaviour of naturally fractured reservoirs[J].SPE J.,1963,3(3):245-255.
[8]Kazemi H,Merrill L S,Porterfield K L,et al.Numerical simulation of water-oil flow in naturally fractured reservoirs[J].SPE J.,1976,16(6):317-326.
[9]Donato G,Blunt M J.Streamline-based dual-porosity simulation of reactive transport and flow in fractured reservoirs[J].WaterResour.Res.,2004,28(4):534-541.
[10]Juanes R,Samper J,Molinero J.A general and efficient formulation of fractures and boundary conditions in the finite element method[J].Int.J.Numer.Methods Eng.,2002,54(12):1751-1774.
[11]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.
[12]吴斌,唐洪,张婷,等.两种新颖的离散裂缝建模方法探讨——DFN模型和DFM模型[J].四川地质学报,2010,30(4):484-487.
[2]王一刚.四川盆地二叠、三叠系环海槽礁、滩富气带勘探[J].天然气工业,2008,28(1):22-27.
[3]王建华.DFN模型裂缝建模新技术[J].断块油气田,2008,15(6):55-58.
[4]张允,袁向春,姚军,等.离散裂缝性油藏数值模拟方法[J].大庆石油学院学报,2010,34(3):80-85.
[5]杨辉廷,江同文,颜其彬,等.缝洞型碳酸盐岩储层三维地质建模方法初探[J].大庆石油地质与开发,2004,23(4):11-15.
[6]邱立伟,杨安平,康志江.新疆塔河裂缝溶洞型油藏储层建模研究[J].特种油气藏,2003,10(6):36-40.
[7]Warren J E,Root P J.The behaviour of naturally fractured reservoirs[J].SPE J.,1963,3(3):245-255.
[8]Kazemi H,Merrill L S,Porterfield K L,et al.Numerical simulation of water-oil flow in naturally fractured reservoirs[J].SPE J.,1976,16(6):317-326.
[9]Donato G,Blunt M J.Streamline-based dual-porosity simulation of reactive transport and flow in fractured reservoirs[J].WaterResour.Res.,2004,28(4):534-541.
[10]Juanes R,Samper J,Molinero J.A general and efficient formulation of fractures and boundary conditions in the finite element method[J].Int.J.Numer.Methods Eng.,2002,54(12):1751-1774.
[11]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.
[12]吴斌,唐洪,张婷,等.两种新颖的离散裂缝建模方法探讨——DFN模型和DFM模型[J].四川地质学报,2010,30(4):484-487.
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