Experimental investigation of dynamic characteristics of leaching tubing for solution mining of salt cavern carbon and energy storage
作者机构：State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences University of Chinese Academy of Sciences College of Energy and Mining Engineering Shandong University of Science and Technology State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology Shandong University of Science and Technology
出 版 物：《Petroleum Science》 (石油科学(英文版))
年 卷 期：2024年第21卷第4期
页 面：2703-2722页
核心收录：
学科分类：0820[工学-石油与天然气工程] 080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 082003[工学-油气储运工程]
基 金：financial support received from the Open Research Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences (Grant No.Z019011) the Shandong Provincial Natural Science Foundation(Grant No. ZR2020QE112) the National Natural Science Foundation of China (No. 51874273) the Excellent Young Scientists Fund Program of National Natural Science Foundation of China (No.52122403)
主 题：Salt cavern storage Solution mining Leaching tubing Experimental investigation Flutter instability
摘 要：Salt caverns are extensively utilized for storing various substances such as fossil energy, hydrogen,compressed air, nuclear waste, and industrial solid waste. In China, when the salt cavern is leached through single-well water solution mining with oil as a cushion, engineering challenges arise with the leaching tubing, leading to issues like damage and instability. These problems significantly hinder the progress of cavern construction and the control of cavern shape. The primary cause of this is the flowinduced vibration instability of leaching tubing within a confined space, which results in severe bending or damage to the tubing. This study presents a model experimental investigation on the dynamic characteristics of leaching tubing using a self-developed liquid-solid coupling physical model experiment apparatus. The experiment utilizes a silicone-rubber pipe(SRP) and a polycarbonate pipe(PCP) to examine the effects of various factors on the dynamic stability of cantilevered pipes conveying fluid. These factors include external space constraint, flexural rigidity, medium outside the pipe, overhanging length, and end conditions. The experiments reveal four dynamic response phenomena: water hammer, static buckling, chaotic motion, and flutter instability. The study further demonstrates that the length of the external space constraint has a direct impact on the flutter critical flow velocity of the cantilevered pipe conveying fluid. Additionally, the flutter critical flow velocity is influenced by the end conditions and different external media.
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