质量平衡方法用于加拿大一条原油管道泄漏检测很有效,将这种方法与Nova公司的Leakstop软件进行了比较,当泄漏不小于4％时,两种方法效果一样;当泄漏小于4％时,数据尚不充足,没有比较结果。给出了质量守恒原理公式及最小可检测泄漏量公式。通过五组模拟泄漏试验数据进行了不可重复性及泄漏可检测性研究。 The mass balance method is very effective for leak detection in a crude oil pipeline in Canada. This method is compared with Nova’s Leakstop software. When the leak rate is no less than 4%, the two methods have the same effect. When the leak rate is less than 4%, the data Not enough, there is no comparison. The principle of mass conservation and the formula of minimum detectable leakage are given. Non-repeatability and leak detectability studies were conducted using five sets of simulated leak test data.