本文对测定湿陷起始压力的方法，提出采用联合测定法，这不仅不增加工作量，而且方法同一，选取合理，符合实际，相关性好。 In this paper, the method of determining the initial pressure of collapsing is proposed to use the joint determination method. This not only does not increase the workload, but also the method is the same, the selection is reasonable, and it is in line with the actual situation and the correlation is good.