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以高分辨率层序地层学原理为指导,利用岩芯、测井和钻井资料等,对吐哈盆地鄯勒油田勒3区块七克台组不同级次基准面旋回进行了详细划分,建立了高分辨等时地层格架,将七克台组划分为3个长期基准面旋回,6个中期旋回,16个短期旋回。通过井间高分辨率层序地层对比和基准面旋回格架内沉积相和砂体展布特征,分析各级次基准面旋回沉积演化规律,预测有利砂体的平面分布。
Guided by the principle of high-resolution sequence stratigraphy, using the data of core, well logging and drilling, we classify the different level datum cycles of Qiketai Formation in Le 3 block of Langle Oilfield, The high-resolution isochronous stratigraphic framework divides the Qikai Formation into three long-term base-level cycles, six mid-term cycles, and 16 short-term cycles. Through the cross-well high-resolution sequence stratigraphy contrast and the sedimentary facies and sandbody distribution features in the reference plane, the evolution regularities of the cycles of each level are analyzed, and the plane distribution of the favorable sandbody is predicted.