【摘要】 准噶尔盆地腹部YJ油田西山窑组储层非均质性强、孔渗性差异大,相邻井产能相差悬殊,了解储层的分布形态和砂体叠置关系是该油田开发的关键。本文提出了利用测井信息来解释或评价沉积相的方法。首先对方法的原理进行了阐述;然后重点利用自然伽马、电阻率和声波时差等测井曲线的形态、幅度、数值等信息,建立其与沉积微相之间的对应关系,并对不同沉积微相的测井曲线形态进行了描述;最后以西山窑组Ⅱ砂组为例,从单井分析、剖面对比、平面展布3个层次研究了沉积微相,勾绘出砂体展布形态,认为三角洲平原分支河道砂体储层是YJ油田勘探和开发的有利区带。更多还原

【Abstract】 The signature parameters in logging information such as the curve shape,amplitude,numerical value are ultilized to establish the different homographic relationship between sedimentary macrofacies and logging feature parameter in Xishanyao Formation in upper-middle-Jurassic in YJ Oilfield in central Junggar basin,and the logging information of different sedimentary microfacies is recognized and described in detail.Taking the sand group Ⅱ as an example,the sedimentary microfacies are researched in three procedures:single well analysis,section correlation and regional studying,then the sand body is identified in its configuration,and the river channel is considered the best exploration and exploitation area for YJ Oilfield.更多还原