Research indicates that this idea is also applicable for the carbonate . to set up a suit of idea of travel time reading of carbonate interval and use real pressure data to correct it during plotting the normal compaction trend curve are rather important . the method is applied to the prediction of formation pressure in luojiazhai and dukouhe oilfield successfully 研究认为，此种方法在碳酸盐岩剖面同样适用，关键是建立一套适合于碳酸盐岩剖面选取视泥岩层段的声波时差读值方法和在构建正常压实趋势线时，根据趋势线所计算的泥岩段声波时差值和实测正常压力资料修正该趋势线。
