Abstract: A new method is given in this paper to estin}nte formation parameters through transient well tests, considering partial completion, wellbore damage and wellbore storage effects of a well in a double-porosity reservoir, By automatic match anci iteration of the build up curve measured in a shut-up well and that calculateci by optimal control theory, the formation parameters and permeability distribution are determined.The distrihutiou uniqueness in application is discussed.Through simulation and iteration, the curve match is satisfactory to us.It gives a more accurate anci effective explanation of the well test data. The method opens a new way to explain transient well test data.

摘要： 本文对双重介质地层、考虑油井打开的不完善、井底污染程度及井筒续流等因素后,提出了不稳定试井中参数解释的一种新方法,即运用数值解与最优控制理论,对关井压力恢复曲线进行自动拟合和迭代的方法来反求地层参数及油藏中渗透率分布。并对其分布的唯一性进行了应用上的探讨。