A study of water curtain parameters of underground oil storage caverns using time series monitoring and numerical simulation  

作　　者：Yi-guo XUE Ze-xu NING Dao-hong QIU Mao-xin SU Zhi-qiang LI Fan-meng KONG Guang-kun LI Peng WANG 

机构地区：[1]Research Center of Geotechnical and Structural Engineering,Shandong University,Jinan 250061,China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2021年第3期165-181,共17页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 41877239, 51379112, 51422904, 40902084, and 41772298);the Fundamental Research Funds for the Central Universities (No. 2018JC044);the Natural Science Foundation of Shandong Province (No. JQ201513),China。

摘　　要：Water curtain systems(WCSs)are key components for the operation of underground oil storage caverns(UOSCs)and their optimization and design are important areas of research.Based on the time series monitoring of the first large-scale underground water-sealed storage cavern project in China,and on finite element analysis,this study explores the optimum design criteria for WCSs in water-sealed oil caverns.It shows that the optimal hole spacing of the WCS for this underground storage cavern is 10 m in order to ensure seal effectiveness.When the WCS is designed with a 10-m horizontal hole spacing and a water curtain pressure(WCP)of 80 kPa,a water curtain hole(WCH)has an influence radius of approximately 25 m.The smaller the vertical distance is between a WCH and the main cavern,the greater the water inflow into the main cavern.The vertical hydraulic gradient criterion can be satisfied when this distance is 25 m.It shows that the optimal WCP is 70 kPa,which meets sealing requirements.

关 键 词：Underground oil storage Water curtain system(WCS) Water-sealed cavern Optimum design criteria Monitoring data Finite element method(FEM) 

分 类 号：TE972.2[石油与天然气工程—石油机械设备]