【摘要】 三维地质建模技术成为了现代油藏描述成果有力的表达工具。在辽河油田曙二区大凌河油层的构造建模工作中,在地震反射层面的趋势约束下,基于地质分层数据建立了工区地质体的地质层面模型;利用地质研究的断点数据对地震解释的断面进行归位处理,建立了工区地质体的断面模型;针对断面之间、地质层面间以及断面和地质层面的空间关系进行处理,生成地质体三维骨架网格,最终建立了工区地质体的构造模型。更多还原

【Abstract】 Three dimensional geological modeling technology has become a powerful tool for modern reservoir description.In 3D geological modeling,the structural modeling of morphological characteristics of geologic body was the foundation of sedimentary facies modeling,petrophysical modeling and numerical simulation,and it was the key of 3D geological modeling.The 3D structural modeling methods of complicated geological features were studied and essential features of geologic body were analyzed and factors influencing structural modeling accuracy were clarified,and structural modeling idea based on geologic point,surface and body and the methods of structural modeling by comprehensively using seismic data,logging data and geologic data were proposed.Aiming at complicated geological features of Dalinghe reservoir in Shu II Area of Liaohe Oilfield,geological model is built based on geologic stratification data under the restriction of the seismic reflection surface.Fault-point data in the study are used for regression process of fault-surface of seismic interpretation and fault-surface model of geologic body is built.The spatial relations between fault-surfaces,geologic surfaces and between both are used to generate 3D grids,and structural model of geologic body is finally built.更多还原