水平井产能是油（气）田开发的重要参数之一，也是油（气）井配产的重要依据。 对于低（特低）渗透油气藏油（气）井产能的确定，一点法产能试井是一种快捷而有效的方法，只需一个稳定点测试资料即可完成，较其他常规回压试井和修正等时试井方法简单、省时、经济。一点法产能公式的得出，对于苏里格低（特低）渗透气藏的产能分析具有重要的现实意义。 应用气藏数值模拟方法，选择苏里格气田典型井建立气藏单井模型，结合二项式产能方程，得到了苏里格气田水平井一点法产能公式，并对该公式进行了验证。结果表明，该一点法产能公式应用于苏里格气田的水平井产能分析具有较高的精度。

The horizontal well deliverability is one of the important parameters of the oil （gas） field and the theoretical basis for oil （gas） wells production proration. For low （special low） permeability oil （gas） field, the single point deliverability testing is a fast and effective way to determine the capacity of the oil （gas） wells. It only needs a stable point of the test data to determine the oil （gas） well capacity and it is simpler, less time-consuming and more economical compared with the back pressure well testing and the modified isochronal test. It is significant to develop the single point deliverability formula for Sulige Gas Field with low （special low） permeability of the gas reservoir capacity analysis. This paper applied gas reservoir numerical simulation method and selected the typical wells in Sulige Gas Field to establish the gas reservoir single well model, achieved single point method productivity formula with binomial deliverability equation, and verified the results of the formula. As a result, the formula has the high precision in the Sulige Gas Field of the capacity analysis of horizontal wells.