塔西南前陆盆地油气资源与勘探对策

HYDROCARBON RESOURCES AND EXPLORATION STRATEGY OF FORELAND BASINS IN SOUTHWEST TARIM BASIN

金之钧 吕修祥

Jin Zhijun L? Xiuxiang

塔西南前陆盆地是古生代克拉通盆地与中、新生代前陆盆地的复合,在剖面上呈向北抬升的箕状结构。塔西南前陆盆地具有多套生油层、多套储盖组合和多种圈闭类型。不同勘探时期多种方法计算塔西南前陆盆地资源量在60×10t左右。该区下一步的油气勘探策略应该是:对昆仑山前构造重新钻探并测试;在麦盖提斜坡积极寻找圈闭;对与巴楚隆起过渡的断裂带在钻探的同时应注意该区油气运聚模式的研究。

The southwest foreland basins in Tarim Basin is composed of Paleozoic basins and the Meso-Cenozoic foreland basins.The basin is in dust-pan shape uplifted northward.The basin possesses multi-set of source rocks,multi reservoir-cap rock assemblage and various trap types.The hydrocarbon resources amount is about 6 billion tons calculated by different methods in different exploration stages.The strategy for further exploration of the basin is that the piedmont structure of Kunlun Mountains should be drilled and tested,geological survey should be made in Maigaiti slope so as to find traps,to study hydrocarbon migration and accumulation model in the transitional faulted belt between the slope and Bachu Uplift.

10.11743/ogg20000204