准噶尔盆地车莫古隆起演化及其控藏规律

The Evolution and Reservoir-Controlled Pattern in Chepaizi-Mosuowan Paleo-Uplift in Junggar Basin

侏罗纪中晚期,准噶尔盆地腹部隆升,形成北东向展布的车莫古隆起,改变了盆地腹部单倾的构造格局,形成沿隆起两翼分布的大量侏罗系中上统岩性圈闭与地层圈闭,为油气成藏提供了有利的场所。喜马拉雅运动导致车莫古隆起北翼抬升、南部急剧沉降,使北部前期已形成油藏遭受破坏而发生二次调整,隆起南翼得以保存,是盆地腹部深层有利的勘探领域。

The Chepaizi-Mosuowan （Chemo） paleo-uplift of N-E extending was shaped with the uplifting of hinterland of Junggar basin during the Mid-Late Jurassic, which changed the structural framework of monoclinal hinterland of the basin, forming quite a few lithostratigraphic traps of Mid-Upper Jurassic distributed along both sides of Chemo uplift. These traps provided favorable places for oil-gas accumulation. While Himalayan tectonic movement made the north-side continuously rise and the south-side extremely sink, causing secondary adjustment of pre-formed reservoirs that underwent destruction in the north side, the south side structures were still preserved up to now. These structures should be as favorable domains for deep hydrocarbon exploration in hinterland of Junggar basin.