Formation of Tuha oilfield belongs to low pressure and bad reservoir property which makes conventional combing tech of testing and perforation not being suit for need of production of oil well.

吐哈油田地层压力较低、储层物性较差，且要进行上返试油的井采用常规测试射孔联作技术已不能满足生产需要。

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On this basis and combing with the conditions of trap, reservoir and hydrocarbon migration, the paper researched the controlling effects of the faults on the oil and gas accumulation in Nanpu Sag.

在此基础上，结合本区圈闭条件、储层条件和油气运移条件，来研究断裂对油气的控制作用。

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