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在岩心观察的基础上,从单井沉积相分析入手,并结合钻井岩性剖面、沉积构造和电性特征等大量地质资料,对百重7井区克上组沉积特征进行了研究,认为克上组为一套扇三角洲沉积体,而非前人所说的冲积扇沉积。可进一步分为扇三角洲前缘和前扇三角洲两个沉积亚相及六个微相。
On the basis of core observation, starting with the analysis of single-well sedimentary facies and combining with a large amount of geological data such as drilling lithology, sedimentary structure and electrical characteristics, the sedimentary characteristics of Ke-Shang Formation in Baizhong-7 well were studied. The upper group is a set of fan delta sedimentary bodies, rather than the deposition of alluvial fans. It can be further divided into two sedimentary subfacies and six microfacies in fan delta front and fan delta.