油井的动液面参数直接反映了油层的供液情况及井下供排关系,是进行采油工艺适应性评价和优化的关键数据之一,传统的动液面测试方法是利用声波回声进行测试,实践表明这种方法对大多数机采井都是适用的,但是近几年发现这种方法有一定的不适应性:对部分井用这种方法难以测出动液面或测不出动液面。因此,目前动液面测试方法需要研究、改进。 The dynamic liquid surface parameters of oil well directly reflect the fluid supply condition and the underground supply and discharge relationship, which is one of the key data to evaluate and optimize the adaptability of oil recovery technology. The traditional dynamic liquid surface test method is to use acoustic echo to test, practice It shows that this method is suitable for most of the production wells, but in recent years, this method has some ineluctability: it is difficult to measure or measure the liquid level in some wells by this method. Therefore, the current liquid level test method needs to be studied and improved.