鄂西渝东区油气成藏控制因素与勘探方向

Factors Affecting Hydrocarbon Resevoir Formation and Future Exploration Planning in West Hubei and East Chongqing

鄂西渝东区与川东区同处于一个构造带上，是川东上古生界天然气高产富集区的重要组成部分，是上古生界油气勘探的有利区带，但近年钻探的效果并不理想，其主要原因是对该区油气成藏控制因素认识不足，本文认为，古隆起和断裂是控制区内油气成藏的主要因素；储层的发育程度，渗入水的影响和供气面积的大小等是影响油气成藏的重要因素，并认为今后的勘探应以开江──梁平古隆起南缘和石柱古隆起及其周缘为重点。

The west Hubei, east Chongqing and east Shichuan are the same structural belt, which is prolific important Upper Paleozoic natural gas area. However, drillings in the area have not been suc- cessful in the recent years. The main reason for this is the lack of understanding of the factors which controll hydrocarbon reservoir formation. These factors include the successive development of large po- laeohighs, fault sealing, the development degree of reservoirs, the amount and seeping depth of seepage water and the scale of effective hydrocarbon supply area and so on . It is suggested that the future ex- ploration should focus on the southern margin of Kaijiang - liangping polaeohigh and shizhu polaeohigh.