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西藏羌塘盆地是特提斯构造域巨型油气富集带中一个大型晚古生代—中生代海相残留盆地。盆地盖层厚度可达万米，其中侏罗系浅海相地层占５０％以上。盆地经历了晚古生代大陆边缘沉积阶段、三叠纪陆间裂谷阶段、侏罗纪大陆边缘沉积阶段和侏罗纪末班公湖—怒江缝合带闭合以来的构造反转挤压、长期剥蚀改造阶段。盆地中三叠系与侏罗系广泛发育良好的烃源岩，而且形成多套生储盖组合；但储集层、盖层及保存条件相对较差。与同一构造的波斯湾等大型含油气盆地相比，它只具备多期大陆边缘发育时期，缺少后期，特别是第三纪以来的前陆发育时期。盆地内部生储盖组合具全，构造变形较弱，发现中小型油气田的可能性较大。
The Qiangtang Basin in Tibet is a large Late Paleozoic-Mesozoic marine residual basin in the Tethys tectonic mega-hydrocarbon enrichment zone. The thickness of the cap rock cover up to ten thousand meters, of which the Jurassic shallow marine strata account for more than 50%. The basin underwent reverse tectonic inversion since the Late Paleozoic continental margin sedimentation, the Triassic continental rift, the Jurassic continental margin sedimentation and the late Jurassic end of the Gonghu-Nujiang suture closure, and the long-term denudation reform stage. Well-developed source rocks widely developed in Middle Triassic and Jurassic in the basin, and multiple sets of reservoir-cap assemblages are formed. However, reservoirs and cap rocks are relatively poorly preserved. Compared with the same large-scale petroliferous basins such as the Persian Gulf, it only possesses multi-continental margin development period and lacks the later period, especially the period of foreland development since the Tertiary. The whole reservoir-cap assemblage in the basin has a weak tectonic deformation and is more likely to be found in small- and medium-sized oil and gas fields.