三维地震在油藏挖潜中的应用——以L油藏为例

THE APPLICATION OF 3-D SEISMIC DATA IN EXPLORING RESERVOIR POTENTIALA EXAMPLE OF L RESERVOIR

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。

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.