But the data analysis is relied on experience and statistics in a certain extent, so sometimes it makes big errors.Daniudi gas field is a low permeable gas field, the pressure buildups lowly.

• 但一点法对资料的分析带有一定的经验性和统计性分析误差,特别是对于属于低渗透气藏的大牛地气田,所计算的无阻流量均偏高。