孤岛油田河流相砂岩油藏储集层非均质性定量表征方法

胜利油区孤岛油田已注水开发30多年，馆陶组河流相砂岩储集层中的剩余油分布受储集层非均质性控制。为了定量表征储集层的非均质性，在储集层细分时间单元研究的基础上，综合利用钻井、取心、测井和地震资料，获得反映储集层非均质性的沉积微相、孔隙度、渗透率和有效厚度/总厚度比值参数与微构造参数，将这些参数归一化后，转化为综合反映储集层非均质性的非均质性综合指数，根据非均质性综合指数平面等值线图预测剩余油相对富集区。利用该方法能快速、直观地预测剩余油相对富集区的分布，为老油田开发调整和提高采收率提供依据。图3表2参9

The method Gudao fluvial facies sandstone reservoirs non-equal matter fix quantify token

The Gudao Oilfields in Shengli oil area has been developed by water-flooding over 30 years. The text applies a studying way with non-equal matter synthetic exponent. Base on reservoirs fine divide into time units, synthetic use drilling exploration, cored well, testing well and seismic information, get the parameters token the reservoirs non-equal matter. These parameters are transformed to non-equal matter synthetic exponents that impersonality reflect reservoirs, and according to non-equal matter synthesize exponents to forecast remaining oil rich areas, and bring forward remaining oil to dig hidden measures. The methods validity has been validated by the production dynamic information, and achieves to adjust development well patterns, and as a result increase recovery factor.