大芦湖油田樊124区块低渗透油藏的数值模拟

针对樊124区块低渗透油藏储层物性变化大,注水不见效及单井含水率变化复杂等问题,在油藏数值模拟过程中,采取了按沉积微相分区设置相对渗透率曲线、开发动态与地震解释和测井解释相结合等方法。模拟结果表明,该区块注水不见效的主要原因是封闭断层的遮挡作用,岩性变化带处的单井含水率受岩性的控制,剩余油主要分布在区块中部及东南部物性较好的区域。实例表明,多学科一体化方法能提高低渗透油藏数值模拟的准确性。

Numerical simulation of low permeability oil reservoir of F124 block in Daluhu Oilfield

According to large variation of reservoir physical properties, non-effect of water injection and complex variation of water cut in single well in low permeability oil reservoir of F124 block,the method of setting relative permeability curve partitional, dynamical adjusting conductivity , taking advantage of seismic interpretation and log interpretation and the wells dynamic exploitation were adopted in the process of reservoir numerical simulation. The simulation results showed the reason of in-jection invalidity existed in low permeability reservoir F124 block,that was,it shelted from sealed faults,the water cut of single well at lithology variation zone was controlled by the lithology. The remaining oil mainly distributed in the central and southeast part which had better reservoir property. The case presented that the method of interdisciplinary integrated technique could enhance the veracity of the reservoir numerical simulation.