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垂向干扰试井技术是确定垂向渗透率研究油层密封性的有效方法。针对大庆油田细分层注采的实际，研究高含水主力油层与薄、差油层及表外储层间的夹层的稳定性，采用同井层间（垂向）干扰试井方法求取夹层尖灭、天窗到测试井的距离。文中介绍了垂向干扰试井工艺原理及实现方式；并考虑圆盘尖灭和圆环天窗两种基本模型，建立相应的物理和数学模型，拉氏变换求得拉氏空间解。根据夹层尖灭、天窗情况下中、晚期近似解，给出确定夹层稳定性的同井层间干扰试井解释方法，编制解释软件，通过实例说明其应用。同井层间干扰试井技术研制成功，为大庆油田挖潜难采储层、细分开发层系提供了可靠依据。
Vertical disturbance well testing technology is an effective method to study the vertical permeability to study the sealing of the oil layer. According to the actual practice of subdivision injection and production in Daqing Oilfield, the stability of interlayer between high-water-cut main reservoir, thin and poor oil reservoir and off-site reservoir is studied. Inter-layer (vertical) Off, the distance from the skylight to the test well. In this paper, the vertical interference well testing process principle and its realization method are introduced. Two basic models of disc tip-off and circular sunroof are considered, and the corresponding physical and mathematical models are established. The Laplace transform is obtained by Laplace transform. According to the medium and late approximate solutions under the condition of the outburst in the middle of the skylight and the middle of the skylight, a well testing interpretation method for determining the interlaminar interference of the interlayer is given. The software for interpretation is compiled and its application is illustrated through an example. The well test technology for inter-layer interference has been successfully developed, which provides a reliable basis for tapping potential difficult reservoirs and subdividing development strata in Daqing Oilfield.