伸展构造背景下倾角资料的构造解释

系统总结了在伸展构造背景下，导致反映构造特征的地层倾角模式复杂化的多种因素。沉积相的不同、岩性变化、井眼状况和测井作业时间等多种因素都可能使地层倾角资料复杂化。进一步指出在拉张盆地中，进行倾角资料的构造解释，必须了解其构造样式的多样性和复杂性，解释存在的多解性。重点解剖了铲式断层在横剖面情况下，对于不同构造位置下的倾角模式。详细分析了一个倾角模式对应多种构造样式的倾角构造解释实例。倾角资料的构造解释应是综合解释，既要综合井筒的相关地质资料，又要综合测井与地质知识，还必须考虑综合地震资料。

Dip Data Interpretation Under Extensive Structure

Several elements that can make the dip data interpretation models complex are summarized under the extensivestructure setting in this paper. They should be integrated with the relative sedimentary facies，lithologic character，boreholecondition and wireline logging time，et al. Because the structure styles in the extensive basin are complex and diverse，thedip data interpretation models also have multiple solutions. Several dip data interpretation models under different structurallocation of listric fault depending on the geologic section were described，and a dip data interpretation example that one dippattern can correspond with several structural styles was analyzed. So geology model is to be obtained by combining with dipmodel and geology background and other data，especially，seismic profile.