The structuretrap and structure-lithologic trap are main types of the oil and gas accumulation.
构造、构造—岩性复合是主要的油气藏类型;
2
The tear fault intersected with low angle normal fault or thrust fault can form some traps, e. g. trap-door structuretrap.
撕裂断层与低角度正断层或逆冲断层相交时常形成有利圈闭,如活板构造等。
3
The structure of Cretaceous formation is a large slope with high point in the north-east and low point in the south-west, the structuretrap developing not well in it .