吐鲁番-哈密盆地形成演化与含油气远景评价

吐鲁番一哈密盆地是准噶尔一吐 鲁番板块内的陆相断陷型山间盆地。自晚二叠世至中、新生代,盆地经历了四个发展阶段,发育了上二叠统、上三叠统及下、中侏罗统三套生油层来。北部凹陷是晚二叠世、晚三叠世、早、中侏罗世多期叠加的生油凹陷区,是今后寻找大中型油气田的主战场。托克逊凹陷是晚二叠世生油凹陷,五堡凹陷是晚三叠世生油凹陷。

FORMATION,EVOLUTION OF TURPAN-HAMI BASIN AND ITS PETROLIFEROUS PROSPECTIVE EVALUATION

Turpan-Hami Basin is a continental faulted intermontane basin within Junggar-Turpan plate. From Late Permianto Mesozoic and Cenozoic ,it was undergoing four stages with developing three source sequences of Upper Permian, Up-per Triassic and Lower-Middle Jurassic. The North Depression, being a source-sag domain characterized by multiperiodsuperpositions of Late Permian,Late Triassic,and Early-Middle Jurassic,will be a main area for prospecting big ormedium oil and gas fields from now on. Tuokexun Depression is a source sag of Late Permian. Wubao Depression is a-source sag of Late Triassic.