通过研究战略选区项目基础地质与油气地质成果及已有资料,对西藏地区的石油、天然气资源的可能分布规律和勘探开发前景进行分析,认为西藏地区石油远景资源量121.26亿t,石油地质资源量69.61亿t,石油可采资源量14.00亿t.该项目通过技术攻关,总结出一套适合青藏高原二维地震勘探方法,建立了青藏高原地层物性柱,并分析了盆地主要物性界面,识别出三个明显的地质界面,确定了盆地结构和主要构造层的分布.研究表明,羌塘盆地具有形成大型油气田的资源潜力,羌塘以外海相盆地也具有一定油气勘探前景,伦坡拉含油气盆地群和可可西里含油气盆地群具有油气勘探前景.%Through basic geological data and some study about hydrocarbon resources in the project of strategic research, the oil & gas resources and its distribution in Tibet are analyzed, and it is put forward that the prospective reserve of oil is about 121.26 × 108t, geologic reserve of oil is about 69.61 × 108t, recoverable reserve of oil is about 14.00 × 108t.Some methods of 2D seismic exploration are set especially for Qinghai-Tibet Plateau.Physical column of stratigraphic is set and analyzed.Three obvious geological interfaces are identified and some important structural layers are outlined.Through geological investigation, gravity-magnetic measuring and some other methods, it is thought that Qiangtang basin has good potentiality of giant oil&gas field, and some other marine basins also have good exploration expectation, besides, Lunpola oil-bearing basin group and Hoh Xil oil-bearing basin group have as well.
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