复杂断块油田中应用开发地震技术加密调整的研究

APPLICATION OF DEVELOPMENT SEISMIC TECHNIQUE TO INFILL ADJUSTMENT IN A COMPLICATED FAULT-BLOCK OILFIELD

太 190区块位于大庆长垣二级构造带上的两个三级背斜构造的鞍部 ,是被断层复杂化的小断块油田。三维高分辨率开发地震技术研究表明 ,构造形态复杂、局部隆起的微幅度构造及小断距断层十分发育。应用储层综合反演技术进行沉积微相、储层分布及剩余油预测 ,基本弄清了剩余油分布与局部构造、断层、相带等之间的关系。针对剩余油富集区的加密调整。

Tai 190 is a small fault-block oilfield complicated by many faults. It is located in the saddle between two anticlines(third structure scale) of Daqing placanticline(second structure scale). The research of 3D high resolution development seismic in the area showed that the block is very complicated on structure shapes, developed with low amplitude structure at local uplifts and small faults. A detailed prediction of sedimentary facies and reservoirs distribution and potentially profitable area of remaining oil was made by the application of an integrated seismic inversion approach. The relationships of remaining oil distribution with local structures, faults and sedimentary facies belts became clear. The infill adjustment and systematic injection-production adjustment for potentially profitable remining oil areas in Tai 190 block was achieved successfully.