油藏地球物理学方法在地质建模中的应用  

Application of reservoir geophysics to geologic modeling.

作　　者：尹天放[1] 

机构地区：[1]中国石油天然气集团公司石油勘探开发科学研究院

出　　处：《石油勘探与开发》2000年第5期61-62,共2页Petroleum Exploration and Development

摘　　要：构造模型、岩石物性参数模型和流体模型是油藏数值模拟所使用的三维地质模型中最重要的组成部分 ,充分应用油藏地球物理学方法 ,可以提高所建地质模型网络节点参数的准确程度。文中给出一些实例 ,利用地震均方根振幅剖面精细解释断层、恢复古应力场进行层面曲率分析、计算破裂值的平面分布来判断地质体的破裂程度从而建立构造模型 ;采用三维地震相干切片技术和多参数约束反演技术 ,定量地建立岩石物性参数分布模型 ,并解释单砂体骨架空间分布 ,建立单砂体骨架模型 ;利用地震连井剖面 ,综合测井、地质资料 ,以人工神经网络技术和多元统计分析为基础的模式识别技术 ,对地震属性与油气藏关系进行聚类分析 ,建立流体模型 ,可以确定油、气、水的区域分布。Struc ture model, parameter model and fluid model are the most important parts of 3D g eological model. The application of technologies of reservoir geophysics can hel p to produce a more precise and quantitative geological model. This paper shows that the parameter of each grid in a 3D geological reservoir model can be signif icantly improve by fully using reservoir geophysical methods. The geophysical te chniques mentioned here include using seismic root mean square amplitude sectio n and seismic derived paleoterrestrial stress field to calculate the distributi on of fracture value and further interpret the fault and fractured zone, is capa ble of producing satisfied stsuctural model. Using seismic coherence, 3D seismic inversion to set up petrophysical parameters and single framework sand body mod el. The application of seismic correlation section with logging data, geologic d ata and pattern recognition of hydrocarbon and water to approve the distribution of the gas, oil and water t o build the fluid model. This paper shows an example of establishing the above m odels.

关 键 词：油田地质建模 油藏地球物理学方法 构造模型 

分 类 号：TE319[石油与天然气工程—油气田开发工程]