关键词: 准噶尔盆地, 陆梁隆起带, 岛弧, 火山岩, 油气藏, 油气远景

Abstract: Luliang uplift zone is an inherited positive tectonic unit from marginal arc along the north margin of Junggar plate during the Late Paleozoic, which is a long-term trend for petroleum migration. To the west, Mahu source sag (Permian) is a major source area. Primary Paleozoic volcanic reservoir formed at the close of Triassic, Triassic and Jurassic reservoirs formed during the late Middle Jurassic to Early Cretaceous, secondary Paleozoic volcanic reservoir formed after the Late Cretaceous period. Volcanic rocks (particularly dacite and andesite), which have a good reservoir quality, are the major reservoir rock in this area, whereas clastic reservoir is well developed but with poor quality. Upper Triassic is the regional sealing bed. acting as a barrier for hydrocarbon preservation. The western part of south slope of Luliang uplift should be considered as the important exploration objective in the future, because it is characterized by approaching source area, good reservoir and sealing conditions, richness in trap type, and high hydrocarborx potential.

Key words: Junggar basin, Luliang uplift zone, Island arc, Volcanic rock, Petroleum reservoir, Hydrocarbon potential