黄骅拗陷凝析油气藏地质特征及形成条件探讨

A Discussion on the Geological Charactcristics and Formation Conditionsof the Condensate Reservoirs in Huanghua Depression

本文在对各凝析油气藏作了概述之后,着重对其成因及分布进行了论述。认为它的形成主要取决于生油层的母质类型、有机质丰度和热演化阶段,并与圈闭条件、区域构造位置及成烃时的温度、压力有关;其分布在平面上受生油凹陷和构造条件的控制,在纵向上分原生、混合和次生三种成因类型。

After having a brief description on each of the condensate reservoirs, this paper emphatically expounds their geneses and distribution. It is thought that the formation of these reservoirs is mainly dependent on the types of kerogen, abundance of organic matters and stages of thermal al-teration, and related to the trap-forming conditions, the location of regional structure and the temperature and pressure in the period of generating hydrocarbons. Their distribution on the plane is controlled by source depression and structural conditions. In perpendicular three genesis types, i.e. protogenetic, mixed and secondary ones may be divided up.