针对盐22块沙四上亚段复杂砂砾岩储层分布规律不清的问题,利用多概率函数最优融合岩石相建模的方法,讨论了砂砾岩储层在垂向和平面的分布规律.结果表明:盐22块砂砾岩储层在测井上可识别出3类岩石相,其中砂砾岩相储层性质最好,中粗砾岩相较差,而泥岩为非储层;沙四上亚段垂向存在正韵律,其中Ⅰ、Ⅱ、Ⅳ砂组优质储层发育较差;III砂组储层性质最好,平面上发育4个规模较大、储层物性较好的砂砾岩相储集体,而在垂向上具有"整体厚、单层薄、横向短"的特点.该研究对于东营凹陷及类似复杂砂砾岩储层的表征具有一定指导意义.%The optimal fusion of multi-probability function and lithofacies modeling is used to identify the distribu-tion of complex glutenite reservoir in the upper member of Sha4 in Yan22 block and discuss its lateral and longitudi-nal distributions. Research indicates that 3 types of lithofacies can be identified through the glutenite reservoir log-ging data,including the high-quality glutenite reservoir,coarse conglomerate reservoir with medium-quality and mudstone as non-reservoir. There is a positive rhythm in the longitudinal direction of Sha4 upper member,where relatively low-quality reservoirs develop in the I,II and IV sandgroups.The Sandgroup III with best reservoir quali-ty includes 4 large-scale glutenite reservoirs,which are featured by"large integral thickness,small thickness of single layer,short lateral scale". This research could provide certain guidance to the characterization of glutenite reservoirs in Dongying Sag and other similar glutenite reservoirs.
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