Formation pressure of Tuha oilfield is low, degasification interlayer makes ratio of gas to fluid increasing and a good many of wells of low pressure, high ratio of gas to fluid are appeared.

• 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。