本文针对目前变井储试井分析基本上仍停留于理论研究，还不能适应油气田生产需要的现状，建立了一个新的变井储试井模型，并在提出一种新的导数计算法基础上，研制出了适合各类变井储情况的驼峰型、台阶型和拟标准型典型曲线理论图版。结合一种新的变井储早期近似解解决了新图版应用中的多参数问题。最后分析了一个气井实例 In this paper, aiming at the fact that the well testing in well change well basically stays in the theoretical research and can not meet the need of oil and gas field production, a new well testing model for well change is established. On the basis of a new derivative calculation method , Developed a hump type, step type and quasi-standard typical curve theory version suitable for all kinds of well change reservoir conditions. Combined with a new near-well solution to variable well storage, the multi-parameter problem in the application of the new plate is solved. Finally, a gas well example is analyzed