Abstract: Previous studies of well testing with vertical interference assumed that a packer com-pletely seperates the producing interval into a production section and an observation section.This assumption severely restricted the use of the result of test.Because of perforation, fracturing and so on, there exists leakage behind casing for most wells. The packer may also have some problem.In this paper, a mathematical model and its interpretation method are given for a leaky vertical interference well testing in a 3-layered reservoir. The features of transient flow in the test and the influence of different parameters are discussed.The new model considers "kh" product,skin factor and storativity of each layer,crossflow between layers and leakage behind casing. It includes more parameters than the other studies.

Key words: interference, well testing, mathematical model, interpretation, casing leak

摘要： 过去垂向干扰试井的研究都假定了封隔器将片段完全隔开,生产段与观察段在井中互不连通;它严重地限制了垂向干扰扰井的实际应用,因为经过射孔和增产措施等作业,多数井都极可能存在套管后的层间串槽,而且封隔器的密封性也不是毫无问题.本文给出了研究三层油藏中套管后存在串漏的垂向干扰试井的教学模型和解释方法,并讨论了这种试井中不稳定流动的特点及不同参数的影响.新模型考虑了分层kh值和表皮系数、分层储容比、层间越流及套管后的串漏,是目前垂向干扰试井研究中考虑影响因素最完全的.

关键词: 干扰, 试井, 数学模型, 解释, 套管漏失