伊通地堑构造样式及其油气分布规律

在对伊通地堑三维地震资料进行系统的构造解析的基础上 ,结合区域地质和钻井资料 ,对伊通地堑构造样式进行了详细的解剖 ,并简要分析了不同构造样式的油气分布规律 .结果表明 ,伊通地堑构造样式以“基底卷入型”为主 ,从盆地的动力学机制上属于“走滑 -拉分型”,进一步可概括为5个类型构造样式 ,分别是 :台阶式断块型、掀斜反转型、简单掀斜型、不对称双断型和伸展断块型 ,而且每一个断陷都以一种构造样式占主体 ,其展布具有明显的规律性 .构造样式的差异是造成不同断陷具有独特油气分布规律的主导因素

Tectonic Styles and Oil-gas Distribution in Yitong Graben

Yitong Graben is a typical strike basin. Strike slip basins are commonly of complex tectonic styles. Based on the systematic structural interpretation of 3D seismic data and the analysis of regional geology and drilling data, the tectonic styles and oil and gas distribution of Yitong Graben are studied in detail. It is shown that the main tectonic style of the graben is the "basement involved" type, and it is "strike slip pull apart" type according to dynamic origin. The main style can be subdivided into 5 types: "stepped fault blocks", "tilting and inversion", "simple tilting", "asymmetric dual boundary faults", "extensional faulted blocks". There is only one dominant tectonic type in each rift depression. The difference of tectonic style is the main reason why each rift depression has its own oil distribution law.