黄骅坳陷风化店构造复式油气藏形成条件

风化店构造是一个长期发育的继承性古构造,在孔西和风化店二条主断裂控制下,两侧凹陷发育有多类型含油组合,构造相对较高的断块为油气运移聚集的指向,形成多种油气藏类型迭复的复式油气藏。即既有中生界安山岩潜山油气藏,也有孔店组砂岩的构造-断块油藏和岩性油气藏,它是黄骅坳陷南部油气富集的典型模式。 

FORMATIVE CONDITIONS OF COMPOSITE HYDROCARBON POOLS IN FENGHUADIAN STRUCTURE OF HUANGHUA DEPRESSION

Fenghuadian structure is an inherited palaeo-structure of long development. Controlled by two major faults of Kongxi and Fenghuadian, various types of oil-gas assemblages were developed in depressions on the both sides. The migration and accumulation were orientated to faultblocks with higher positions, as a result, different types of superimposed composite hydrocarbon pools were formed. There are hydrocarbon pools of buried hill in Mesozoic Anshan rocks, as well as of structural fault blocks in sandstone of Kongdian Formation. This is a typical model of hydrocarbon enrichment in the south of Huanghua depression.