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利用岩心与薄片资料对克深2井区的裂缝进行分类研究,认为该研究区主要发育构造裂缝、成岩裂缝等.通过对岩心资料、成像测井资料的研究,按照裂缝之间的截切关系,对克深2井区的构造裂缝进行期次划分,认为研究区主要发育3期裂缝:近南北向裂缝为第一期,北西向裂缝为第二期,近东西向裂缝为第三期,另外研究区可见一期较不发育的北东向裂缝.同时结合前人的岩石声发射实验结果,确定研究区各期裂缝形成的时间大致为:北东向裂缝发育于燕山晚期(K/E),近南北向裂缝发育于喜马拉雅早期(E/N),北西向裂缝发育于喜马拉雅中期(N1/N2),近东西向裂缝发育于喜马拉雅晚期(N2/Q).
According to the classification of the fractures in the core area of Ke Shen 2 well by using the core and thin slice data, it is considered that the structural fractures and diagenetic fractures are mainly developed in the study area.Based on the core data and imaging logging data, according to the relationship between the fractures , We divide the tectonic fractures in the area of Ke Shen 2 well and think that there are mainly 3 fractures in the study area: the fractures near the north and the south are the first phase, the northwest fractures are the second phase, the near east-west fractures are the third phase, In addition, a relatively undeveloped north-eastern crack can be seen in the study area.According to the experimental results of rock acoustic emission of the predecessor, the time of formation of cracks in each period of the study area is approximately as follows: North-eastern crack development in late Yanshan period (K / E ), Nearly north-south fractures developed in the early Himalayas (E / N), northwest fractures developed in the middle of the Himalayas (N1 / N2), and near-easterly fractures developed in the late Himalayas (N2 / Q).