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根据川东北地区碳酸盐岩地层沉积特征及高陡构造特点,介绍了以测井资料为主,充分结合地质与地震信息分析复杂构造带井周构造形态的方法。针对J×1井嘉陵江组地层厚度增厚的复杂情况,运用测井资料进行精细对比和地层倾角拾取等方法进行构造综合分析认为,主断层是控制井周构造形态的关键,由此弄清楚了其复杂的构造特征,建立了该井井旁构造地质模型。从地层的变形特征和延伸的范围看,该断层对目的层圈闭具有一定的控制作用。将测井相与地层倾角矢量模式结合以及将区域地质规律与测井解释相结合对单井构造进行研究的方法提高了解释的精度和置性度,可以弥补地震资料的不足,为地震资料的重新处理提供准确的构造模型。
According to the sedimentary characteristics of carbonate rocks and the characteristics of high and steep structures in the northeastern Sichuan area, this paper introduces a method of analyzing well structure shapes of complex structures with logging data and combining the geological and seismic information fully. According to the complicated situation of the thickening of the Jialingjiang formation in J × 1 well, the comprehensive analysis of the well logging data by means of fine comparisons and formation dip picks holds that the main fault is the key to controlling the formation pattern of the well periphery, Its complicated tectonic features have established the geological model of the well-side structure. From the deformation characteristics of the strata and the extension of the scope of view, the fault of the target layer trap has a certain control. The combination of logging facies and stratigraphic dip vector model and the combination of regional geologic rules and well logging interpretation to study the single-well structure have improved the accuracy and the degree of disposition of interpretation and can make up for the lack of seismic data, Reprocessing provides accurate construction models.