关键词: 干扰, 试井, 数学模型, 解释, 套管漏失

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