【摘要】 洪积扇砂砾岩储层岩石类型复杂多样,不同岩石相的含油性、渗流性能及油水运动存在差异,以此可以寻找砂砾岩油藏开发后期的剩余油。研究表明:通过野外考察和岩心观察及FMI测井分析,砂砾岩储层可以划分出7种类型的岩石相,其中片流成因的交错层理-细砾岩相和平行层理砂岩相大孔粗喉,饱含油,渗流性能最佳,注水开发快速水进;杂基颗粒支撑—中粗砾岩相和含砾块状粗砂岩相属于中孔中喉,油浸、渗流性能次之,开发效果好;杂基支撑无序—泥质砾岩相和波状层理粉细砂岩相储层的含油性和流动性最差。结合生产动态信息,杂基颗粒支撑-中粗砾岩相和含砾块状粗砂岩相是后期开发调整的目标岩石相。更多还原

【Abstract】 The remaining oil in the conglomerate reservoir can be prospected and recovered based on the diversity of alluvial fan rock types of the reservoir and oiliness and fluidity and oil-water movement of different lithofacies.The field observation,core analysis and FMI logging of the conglomerate reservoir show that this reservoir consists of 7 types of lithofacies.The study result shows that the cross bedding-fine conglomerate and parallel-bedding sandstone is the best in porosity,oil saturation and fluidity,grain-supported middle-coarse conglomerate and massive pebbled sandstone are the next,while argillaceous conglomerate and wavy-bedding siltstone are the worst.It is then concluded that middle-coarse conglomerate and massive pebbled sandstone should be the main object of later development or adjustment.更多还原