【摘要】 以地震资料为主识别裂缝性储层并描述裂缝的空间分布,是目前石油工业界积极研发的技术之一。针对平方王—平南潜山油藏裂缝性储层的特点,利用断裂增强的构造倾角滤波处理技术处理后的地震资料,提取了反映储层微裂缝的最优几何属性:曲率属性描述了微断裂体系的线状特征,最大曲率与裂缝的密度有内在的联系,而该曲率的方位角则代表了裂缝的方向。岩心资料和成像测井与地震资料相结合有针对性地分析了裂缝空间展布规律。平方王—平南潜山储集空间类型多、分布不均匀,裂缝、溶孔和溶洞发育,储集空间具有结构形态上的复杂性和空间变化的突变性。研究区裂缝的方向主要是北东向,裂缝主要发育在大断层附近的构造高点,西北部沿断层走向有个裂缝不发育的条带,其他各层段储层的特征表现为一定的相似性。更多还原

【Abstract】 The seismic technique which is widely used for identifying fractured reservoir and describing the spatial distribution and orientation of fractures based on the seismic data is one of the most effective approaches in the present petroleum industry.According to the fracture characteristics of Pingfangwang-Pingnan buried hill reservoir,the author used the enhanced faulting and filtered treating seismic data to extract the most optimal attribute from earthquake geometry attributes of reflection micro-crack of reservoir:the curvature attribute which is used to describe the micro-fracture system of linear features,the largest curvature represents the force of the point,which has the internal connection with the density of fractures,and the azimuth property represents the direction of fractures.With the help of two properties of the largest curvature,the density and directions of fractures can be obtained,and then the net-structure and landscape orientation continuous,micro-fracture system of three-dimensional seismic imaging and the distribution of fracture can be described.The distribution rule of reservoir has been analyzed with the actual data:the main direction of fracture is EN,the main area of fracture is on the highest point near the large fault,and there is a belt along fault in the NW area where the fracture is rare,and the else reservoir shows similarity in some degree.更多还原