Experimental study on vibration characteristics of salt cavern leaching tubing for underground natural gas storage. (November 2022)

• Record Type: Journal Article
• Authors: Mao, Liangjie; Gan, Lunke; Zeng, Song; Cai, Mingjie; Li, Wu
• Is Part Of: Journal of fluids and structures. Volume 115(2022)
• Publication Date: 2022-11
• Subjects: Vibration simulation experiment -- Fluid-induced vibration -- Vibration mode analysis -- Leaching tubing -- Salt cavern gas storage; Fluid-structure interaction -- Periodicals; Fluid mechanics -- Periodicals; Structural dynamics -- Periodicals; Structural analysis (Engineering) -- Periodicals; 620.106
• DOI: 10.1016/j.jfluidstructs.2022.103786
• Languages: English
• ISSNs: 0889-9746

Abstract

Abstract: Leaching tubing is an important tool for building underground gas storage. Its reliability and stability directly affect the building process. However, buckling deformation or fracture often occurs in leaching tubing due to severe vibration. In order to study the vibration characteristics of leaching tubing, a large experimental system is designed. Modal analysis is performed to examine characteristics of leaching tubing. The result of research shows that pressure pulsation of internal turbulence primarily induces the vibration of leaching tubing. Vibration response frequency of leaching tubing is similar to the turbulence pressure pulsation frequency. Meanwhile, amplitude at the bottom and middle of center tube is large. These locations are the risk points of vibration failure and need more attention. Furthermore, the response frequency and amplitude of center tube in reverse circulation are greater than those in direct circulation. Excessive vibration of center tube can be avoided by limiting water injection flow rate and two-port distance. The research results can provide some reference for construction engineers of gas storage and vibration researchers of suction pipe and discharge pipe. Graphical abstract: