4 methods for determination of open - flow potential in gas well are discussed , including their theoretical bases , practiceal significances , computing accuracy , applied conditions , advantage and deficiency , inherent relations among the methods 摘要討論了4種確定氣井無阻流量方法的理論依據(jù)和實際意義,計算精度與應(yīng)用條件,優(yōu)點與不足,不同方法之間的內(nèi)在聯(lián)系。