关键词: 塔里木盆地, 塔北隆起, 油气勘探, 构造圈闭, 地层圈闭, 碳酸盐岩, 碎屑岩

Abstract: In Akekula swell in south slope of Tabei uplft has two suites of hydrocarbon-bearing sequences such as Silurian-Jurassic clastic rocks and Cambrian-Ordovician carbonate rocks and two types of structural trap and stratigraphic trap. Hence, the effects of nonstructural stress deformation and faulted fractural zone should be paid attention to for petroleum exploration of the structural trap area, making in-depth investigation of the carbonate inner structures. For the stratigraphic trap, the oil exploratory efforts should focus on its clastic rock formations, implementing principle of prospecting of both reservoir with karst-vug-fracture networks and reservoir with secondary dissolved pores and quasi-stratified nature. For Akekula to full Tabei uplft area, clear understanding of individual exploratory domain would be needed to carry out 3D prospecting based on the ideas of “large karst”and “large uplift”.

Key words: Tarim basin, Tabei uplift, oil and gas exploration, structural trap, stratigraphic trap, carbonate rock, clastic rock