关键词: 准噶尔盆地, 天然气勘探, 有利条件, 加快勘探, 预探领域

Abstract: There are quite plenty of natural gas resources and huge potential for exploration in Junggar Basin. The basin possesses the favorable geologic conditions to form large natural gas province. There are three sets of source rocks such as Carboniferous, Permian and Jurassic, which have high evolution degree, so gas source condition is plenteous. Multiple and multilayer reservoirs and four regional covering strata upgrowth so that they form advantageous reservoir-cover combination and configuration of gas pools forming. By research of typical gas reservoirs distributed in Wucaiwan, Dixi, Mosuowan and Mobei areas, various types of gas reservoirs, including structural type, paleo-burial-hill type, volcanic inner-episode type and stratigraphic unconformity screened type, are developed in this basin. On the basis of study, it is pointed out that one practical domain, i.e. Ludong-Wucaiwan, Luxi-Mobei-Mosuowan areas; two breakthrough fields, which might be the large-scale structural traps in lower assemblage of the central basin and the foreland thrust belt of southern margin in Junggar Basin, should be broken and one preparative realm for exploring gas-coalbed methane exploration should be rapidly prepared to makeup or to supersede routine gas resources

Key words: Junggar Basin, natural gas exploration, favorable condition, expediting exploration, pre-prospecting domains