Study on the Law of Liquid Phase Settlement and the Change of Wellbore Pressure in the Displacement Method 
Yu　Xiao-dong, Sun　Bao-jiang, Liao　You-qiang, Bian　Qi　, Liu　Shu-jie, Xin　Gui-zhen
Ocean Engineering Equipment and Technology . 2019, (增刊): 359 .  DOI: 10.12087/oeet.2095-7297.2019.z1.68