渤海湾盆地垦东凸起构造演化及对沉积的控制作用

Tectonic evolution and its influence on deposit of Kendong arch,Bohai Bay basin

为了深入研究垦东地区的构造特征与油气聚集规律,寻找有利的油气圈闭,讨论了垦东地区的构造演化史和垦东地区构造演化对沉积的控制作用。通过对本区地质、地球物理的综合研究,得出以下结论:构造发展史表明,垦东凸起及北部斜坡带经历了裂谷期前、裂谷期和裂谷期后三大发育阶段,纵向上呈三层结构分布;垦东凸起及邻区的沉积受构造演化影响明显,发育了不同的沉积类型和沉积体系。

Kendong region is a new hydrocarbon exploration field in central and southern Bohai Bay basin.In order to study the tectonic characteristics and hydrocarbon accumulation rules of Kendong region,and look for advantaged traps,the research related with the tectonic evolution history of Kendong region and the influence of tectonic evolution on deposit have been analyzed.In combination with the study on the geology, geophysics and geochemistry of Kendong region,the tectonic evolution history shows that Kendong arch and northern slope zone experienced three stages:pre- rift period, rifting period and post - rift period.So the stratum shows three - layer structure in lengthways.The deposit characteristics was controlled by the tectonic evolution,and different deposit types and deposit systems were developed in the region.