地层对比在走滑断层位移量计算中的应用--以松辽盆地梨树断陷皮家走滑断层为例

摘要

The stratigraphy in both sides of a strike-slip fault is in the same sedimentary system with the same thickness, lithology and sedimentary facies. This paper deals with the application of stratigraphic correlation to the calculation of strike-slip fault displacement by the example of the Pijia strike-slip fault in the Lishu fault depression, Songliao Basin.%走滑断层走滑前，断层两侧的地层处于同一沉积体系下，走滑后断层两侧地层沉积厚度、沉积相类型、岩性组合同样具有关联性。研究走滑断层位移量的方法有许多种，地质对比是最常用的方法。通过对走滑断层两侧已有钻井地层对比，绘制地层对比图件，从而确定走滑断层位移量。以松辽盆地梨树断陷皮家走滑断层为例，利用断层两侧苏家屯油田和皮家气田营城组地层一致性的特点，通过精细对比，绘制地层厚度、砂层厚度等图件，可确定梨树断陷皮家走滑断层位移量。