深盆气的成因成藏机理及勘探前景

深盆气作为非常规天然气资源，有其特殊的成因成藏机理，总结归纳了深盆气生成和富集的地质规律，提出前陆盆地是形成深盆气藏的有利地区，腐植型有机质是深盆气的主要来源；气水关系倒置是深盆气成藏的重要模式。同时，就深盆气的资源评价方法进行了探讨；最后结合准噶尔盆地实际，分析了深盆气形成的地质条件，提出北天山山前坳陷侏罗系是勘探深盆气的有利地区。

The Origin, Reservoir Formation Mechanism and Exploration Prospect of Deep-basin Gas

As a type of unconventional natural gas resource,the deep basin gas has its own unique origin and reservoir formation mechanism.This paper summarized the geological law of deep basin gas generation and enrichment and proposed that the foreland basin is a favorable region for deep basin gas accumulation.The humic type organic matter is the main source of deep basin gas.Gas water inversion is the dominant pattern of the deep basin gas accumulation.Meanwhile,the paper also made some discussions on the deep basin gas resource evaluation.Finally,combining with the facts of Junggar Basin,the author analyzed the geological conditions of deep basin gas formation and suggested that the Jurassic North Tianshan Piedmont Depression is the favorable area for deep basin gas exploration.