圈闭构造

Rich hydrocarbon accumulation area is usually associated with structure-lithology trap, fault trap and lentoid sand trap.

有利为岩性、构造岩性、断块及断层类型。

The secondary dolomite and paleokarst of the Lower Permian Series in Sichuan Basin is one of the important atectonic reserviors in the basin.

四川盆地下叠统中云岩及古岩溶是下叠统主要的非构造层之一。