塔河油田碳酸盐岩断溶体油藏分隔性描述方法研究  

DESCRIPTION OF THE SEPARATION IN FAULT-KARST CARBONATE RESERVOIRS IN TAHE OILFIELD

作　　者：鲍典[1] 张慧涛[1] 

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《新疆石油天然气》2017年第1期25-30,共6页Xinjiang Oil & Gas

摘　　要：塔河油田断裂系统具有复杂的三维空间和内部结构,沿断裂带走向及侧向储集体发育、油气富集差异化特征明显,制约了开发效果。这种差异性主要受构造破裂作用、溶蚀作用的差异及后期断层核、破碎带的充填及胶结作用的影响。因而进行断溶体油藏的分隔性描述具有重要意义。应用相干+地震剖面方法、分时窗蚂蚁体方法分别描述了继承性发育断裂、非继承性断裂的横向分隔性。横向分隔性造成生产动态的差异性,对后期的开发部署以及调整有指导意义。应用蚂蚁体+能量体的三维叠合方法,描述断溶体的纵向结构变化以及纵向分隔性。应用波阻抗反演表征断溶体内部结构分隔性。纵向分隔性造成局部油水分异,波阻抗反演资料能进一步反映断溶体内部结构分隔性。The three-dimensional space and internal structure of the fault system are complex in Tahe Oilfield.The difference of reservoir development and hydrocarbon enrichment is obvious along the direction and lateral ofthe fault zone,which restricts the development effect. This difference is mainly affected by the structural fracture,dissolution, the filling and cementation of the later fault core and fault fracture zones. Therefore, descripting theseparation in fault-karst carbonate reservoirs is very important.Descripting the lateral separation of inherited de-velopmental fault uses the profile of coherence cube and seismic volume.Using seismic time window of ant track-ing to describe the lateral separation of non inherited developmental fault.Using the difference of production per-formance caused by the lateral separation to guide the deployment and adjustment of the Oilfield. Descripting thelongitudinal structure variation and longitudinal separation by ant tracking and amplitude envelope.Using the im-pedance inversion to describe the internal separation of fault-karst rock mass.The longitudinal separation causedlocal oil-water differentiation,and impedance inversion is better for the internal separation of fault-karst rockmass.

关 键 词：分隔性 能量体 蚂蚁追踪方法 断溶体 塔河油田 

分 类 号：TE122.22[石油与天然气工程—油气勘探]