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塔里木盆地基底之上,沉积岩覆盖0.7—1万余米,累积总厚近3万米,可划分为三套沉积盖层。盖层以内共有三套生油层系,其中以侏罗、三迭系为最可靠。盆地之内四块中生代分割坳陷是油气生成的重要场所,其中以满加尔台陷最为理想。在各生油坳陷内油气聚集的基本规律是:满加尔台陷以地层圈闭为主导,各山前坳陷则受逆断裂所控制。最后列举今后钻探有利地区,最现实的大型油气区在满加尔台陷,其中以塔北隆起带最为有利。
Above the basement of Tarim Basin, sedimentary rocks cover 0.7-1 million meters and accumulate a total thickness of nearly 30,000 meters, which can be divided into three sets of sedimentary cover. There are three oil-bearing formations within the caprock, of which Jurassic and Triassic are the most reliable. The four Mesozoic subdivision depressions in the basin are important sites for oil and gas generation, of which the Manjar Sag is the most ideal. The basic law of oil and gas accumulation in various oil depressions is that Manjar Sag is dominated by formation trap and each piedmont depression is controlled by reverse fault. In the end, we will enumerate the favorable areas for drilling in the future. The most realistic large-scale oil and gas zone is subsided in Manjar, of which the Tabei uplift belt is the most favorable.