塔里木盆地和田河气田周缘寒武系盐下白云岩油气勘探潜力分析

塔里木盆地塔西南地区和田河气田周缘寒武系中统发育厚层膏盐岩，其下白云岩溶蚀裂缝-孔洞型储层发育条件好。多个层系具备烃源岩发育条件，除寒武系下统玉尔吐斯组外，震旦系、南华系也是可能的重要生油层系，油气资源丰富。盐下发育多个规模较大的构造圈闭，且由于膏盐岩层的滑脱作用，断裂很难断穿盐层，后期保存条件好。因此，寒武系中统膏盐岩与下伏白云岩组成本区重要的储盖组合，勘探领域具有非常好的前景。

Petroleum exploration potential analysis of dolomite under the salt bed in the periphery of Hetianhe gas field,Tarim Basin

There is a thick salt bed in Cambrian in the periphery of Hetianhe gas fields, and under which the dolomite reservoirs develop well. Besides Yuertusi Group in Cambrian, Sinian system and Nanhua system may possess important oil source rock. Because of the slippage effect of the salt bed, faults are very difficult to disrupt the salt bed, which leads to the good conservation condition, and a batch of structural traps develop under the salt bed. So, the reservoir?seal assemblage under the salt bed in Cambrian is potential for oil and gas exploration.