摘要 ： 塔河油田奥陶系古岩溶洞穴埋藏深度之大在世界范围内罕见，但对其为何没有垮塌殆尽的原因却知之甚少。
Abstract : The buried depth of karst paleo-caves in Tahe oilfield, Tarim basin is deeper than others throughout the world. But little is known about the reason why it did not collapse.
盆地中部及东部主要受最高古地温或最大古埋藏深度的影响；
In the center and the east of the basin, the main influential factor of organic matter's maturation is the maximum palaeo-geotemperture or palaeoburial depth.
利用古地温研究方法，对不同构造单元代表井热演化史进行了分析，结果表明松辽盆地石炭-二叠系烃源岩根据镜质体反射率-深度关系可以分为两段型和似线型两种。
The results showed that the relationship of vitrinite reflectance and depth of source rock of Carboniferous-Permian in Songliao Bain can be divided into two kinds:two stage and like line.
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