西藏双湖托纳木区块油气成藏条件分析与评价

Hydrocarbon Pool-Forming Condition in the Tuonamu Area, Shuanghu, Tibet

托纳木地区位于西藏北羌塘盆地的南缘,通过综合油气地质评价,认为该区块内的晚侏罗世地层中存在有效的储集层和储集体;生储盖组合配置较好;烃源岩生烃强度高;具有适时有效的圈闭构造,对油气保存条件有利;托纳木背斜为该区块内最具勘探前景的圈闭构造。

The Tuonamu area locates at southward edge of the North Qiangtang Basin, Tibet. From analysis of hydrocarbon geology, it is considered that the Upper Jurassic stratum in the Tuonamu area has effective reservoir beds and reservoir bodies. The Upper Jurassic stratum in the Tuonamu area is characterized by a good generation-reservoir-seal assemblage, and it has hydrocarbon source rocks of high hydrocarbon-generating capability, effective and timely traps, and favorable conducting and preservation conditions. The trap of the Tuonamu anticline is considered to have a favorable exploration potential of hydrocarbon.