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

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。

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.