根据卷积理论提出了一种解释钻杆测试（ＤＳＴ）恢复期压力资料的直线方法（即卷积压力法）．该方法适合于分析非自喷并ＤＳＴ压力资料．在流量的确定上，不仅考虑了流动期井筒储存效应，而且考虑了关井后井筒储存效应的影响．应用本文所给的ＤＳＴ试井解释方法，可以获得地层流动系数（）、地层压力（Ｐｉ）及表皮因子（ｓ）． According to the convolution theory, a straight line method (convolution pressure method) is presented to explain the pressure data during the recovery of the drill pipe test (DST). This method is suitable for analyzing non-self-blasting and DST pressure data. In determining the flow rate, not only the wellbore storage effect during the flow period is considered, but also the effect of the wellbore storage effect after shut-in is considered. Using the DST well interpretation method presented in this paper, the formation flow coefficient (), formation pressure (Pi) and epidermal factor (s) can be obtained.