三维地震在油藏挖潜中的应用——以L油藏为例

为了对老油田油藏进行挖潜研究,首次将三维地震资料与钻井资料结合运用于油藏构造精细描述中,确定了4种主要的挖潜地带:(1)断层附近的微构造;(2)断层面封闭形成的构造;(3)断层夹持的三角死油区;(4)非主流线区的低部位死油区。L油藏的挖潜结果表明:三维地震资料与二维地震资料相比具有不可比拟的优越性,特别是将三维地震资料与钻井资料紧密结合,确定出具体的钻井井位,能有效的指导老油田挖潜。

THE APPLICATION OF3-D SEISMIC DATA IN EXPLORING RESERVOIR POTENTIALA EXAMPLE OF L RESERVOIR

In order to explore old reservoir potential, 3-D seismic data and drilling data are integrated and used in reservoir areas are determined: (1) the mini-structures around faults; (2)the structure formed by sealing of fault plane; (3) the blind areas surrounded by faults and (4) the lower part blind areas located not on main stream lines. The potential exploring illustrates that 3-D seismic data has incomparable advantage over 2 -D ones, specially, exploring old reservoir potential will be effectively guided by tight combination of 3-D seismic data and drilling data so as to determine well location.