陈中红等　

　准噶尔盆地陆梁隆起不整合面十分发育,且与油气运聚关系非常密切:二叠系、三叠系底不整合面是该区侏罗纪末成藏的主控因素,侏罗系底不整合面是深部油气进入该系的有利通道,而白垩系底不整合面又是油气顺利从侏罗系进入白垩系的必要条件。研究区的不整合面有褶皱、断褶、超覆、削截、平行5 种类型,各种类型的不整合面对研究区油气运聚作用也有着差异,其中断褶不整合面对油气的垂向运移与聚集作用最大,是研究区最为典型的油气成藏方式。不整合面的分布具有差异性、继承性、迁移性,三性对油气的演化和分配有着影响作用。

RELATION BETWEEN UNCONFORMITY SURFACE AND HYDROCARBON MIGRATION AND ACCUMULATION OF LULIANG UPLIFT IN JUNGGAR BASIN

Chen Zhonghong　et al　

JOURNAL OF PALAEOGEOGRAPHY，2003.5（1）：120—126.

Luliang uplift in Junggar basin is abundant in unconformity surfaces, which are significant to the hydrocarbon migration and accumulation. The unconformity surfaces in the bottom of Permian system and Triassic system are the key factors for hydrocarbon accumulation in the late period of Jurassic. The unconformity surfaces in the bottom of Jurassic system are favorable to the migration of deep hydrocarbon accumulation in Jurassic system. The unconformity surfaces in the bottom of Cretaceous system are the necessary elements for the migration of hydrocarbon from the Jurassic system to the Cretaceous system. There are five types of unconformity surfaces, which played the different roles in the hydrocarbon migration and accumulation in the research section. The distribution of the unconformity surfaces has three characters of discrepancy, succession , and migration which have great influence on the hydrocarbon distribution and reallocation.