The type,distribution and breakthrough pressure of caprock oh oil(gas) pool in Tulufan de-pression are studied based on experiment data of the drilling sample and exploring in fleld study.

• 通过井下样品的分析测试资料及野外工作调查，对吐鲁番拗陷油气藏盖层的类型、分布及其突破压力进行了研究。