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A preliminary site selection system for underground hydrogen storage in salt caverns and its application in Pingdingshan,China

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Deep Underground Science and Engineering 2024年第1期3卷 117-128页

作者： Liangchao Huang Yanli Fang Zhengmeng Hou Yachen Xie Lin Wu Jiashun Luo Qichen Wang Yilin Guo Wei Sun Sino‐German Research Institute of Carbon Neutralization and Green Development Zhengzhou UniversityZhengzhouChina Institute of Subsurface Energy Systems Clausthal University of TechnologyClausthal ZellerfeldGermany Research Centre of Energy Storage Technologies Clausthal University of TechnologyGoslarGermany Sino‐German Energy Research Center Sichuan UniversityChengduChina State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhanChina Faculty of Land and Resources Engineering Kunming University of Science and TechnologyKunmingChina

Large‐scale underground hydrogen storage(UHS)provides a promising method for increasing the role of hydrogen in the process of carbon neutrality and energy transition.Of all the existing storage deposits,salt caverns are recognized as ideal sites for pure hydrogen storage.Evaluation and optimization of site selection for hydrogen storage facilities in salt caverns have become significant issues.In this article,the software CiteSpace is used to analyze and filter hot topics in published research.Based on a detailed classification and analysis,a“four‐factor”model for the site selection of salt cavern hydrogen storage is proposed,encompassing the dynamic demands of hydrogen energy,geological,hydrological,and ground factors of salt mines.Subsequently,20 basic indicators for comprehensive suitability grading of the target site were screened using the analytic hierarchy process and expert survey methods were adopted,which provided a preliminary site selection system for salt cavern hydrogen storage.Ultimately,the developed system was applied for the evaluation of salt cavern hydrogen storage sites in the salt mines of Pingdingshan City,Henan Province,thereby confirming its rationality and effectiveness.This research provides a feasible method and theoretical basis for the site selection of UHS in salt caverns in China.

关键词： analytic hierarchy process(AHP) evaluation index hydrogen storage salt cavern site selection

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Experimental salt cavern in offshore ultra-deep water and well designevaluation for CO_(2) abatement

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International Journal of Mining Science and Technology 2019年第5期29卷 641-656页

作者： Alvaro Maia da Costa Pedro V.M.Costa Antonio C.O.Miranda Mariana B.R.Goulart Okhiria D.Udebhulu Nelson F.F.Ebecken Ricardo C.Azevedo Sérgio M.de Eston Giorgio de Tomi Andre B.Mendes Julio R.Meneghini Kazuo Nishimoto Claudio Mueller Sampaio Camila Brandao Alexandre Breda University of Sao Paulo(USP) Sao Paulo 01000-000Brazil Modecom-Technology in Geomechanics and Computing Modeling Rio de Janeiro 27570-000Brazil Department of Civil and Environment Engineering University of Brasília(UnB)Brasília 70000-000Brazil COPPE Federal University of Rio de JaneiroRio de Janeiro 27570-000Brazil Technology Division of Shell Shell BrazilRio de Janeiro 27570-000Brazil

This paper presents a proposal for an experimental salt cavern in offshore ultra-deep water for CO2 abatement,including the instrumentation plan and well conceptual design evaluated for carbon capture and storage(CCS)application.These studies are based on applied computational mechanics associated with field experimentation that has contributed to the technical feasibility of the underground potash mine at the State of Sergipe in Brazil.This knowhow allowed the stability analysis of several salt caverns for brine production at the State of Alagoas in Brazil and to the drilling through stratified thick layers of salt of the pre-salt reservoirs in Santos Basin.Now,this knowledge has been applied in the design of onshore and offshore salt caverns opened by dissolution for storage of natural gas and CO2.The geomechanical study,through the application of computational mechanics,of offshore giant salt caverns of 450 m high by 150 m in diameter,shows that one cavern can store about 4 billion Sm3 or 7.2 million tons of CO2.Before the construction of the giant cavern,which will be the first gas storage offshore in the world,it has been decided to develop an experimental one,with smaller size,to obtained field parameters.The experimental cavern will allow the calibration of parameters to be used in the structural integrity analysis of the cavern and well for storage of natural gas which is rich in CO2 under high pressure.

关键词： salt cavern Pre-salt reservoir Geomechanical study Carbon capture and storage

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Determination of convergence of underground gas storage caverns using non-invasive methodology based on land surface subsidence measurement

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第8期15卷 1944-1950页

作者： Rafal Misa Anton Sroka Mateusz Dudek Krzysztof Tajdus Stefan Meyer Instytut Mechaniki Górotworu PAN ul.Reymonta 2730-059KrakówPoland Salzgewinnungsgesellschaft Westfalen mbH&Co.KG(SGW) AhausGermany

Undergroundgas storage caverns aremonitoredfor environmental safety in termsof equipmentandpotential emissions,particularly methane emissions from the underground and above-ground parts of the storage facility.Periodical measurements of land surface deformations and costly echometric measurements of convergence of individual storage facilities are carried out.The aims of environmental monitoring are:(1)to eliminate potential hazards in the shortest time,(2)assess the overall impact of intensive operation of storage facilities on the environment,(3)developmonitoringmethods relevant to environmental protection,and(4)take actions in case of failure.The paper presents a solution to the problem of determination of the convergence of underground caverns in a salt rock mass based on the results of land surface subsidence measurements carried out using the Gauss-Markov equalization algorithm.Themethod makes it possible for ongoing control of cavern volume convergence after each subsidence measurement on the ground surface and determining the actual impact of the use frequency(injection-mediumconsumption)on the convergence in time.The presentedmethodology is universal and verified on caverns located in a salt rockmass.The Gauss-Markov inversion model is the first used in this area,hence its application is significant.

关键词： Underground storage salt cavern Convergence Subsidence Surface deformation

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Mechanisms and field test of solution mining by self-resonating cavitating water jets

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Petroleum Science 2010年第3期7卷 385-389页

作者： Song Xianzhi Li Gensheng Yuan Jinping Tian Zhonglan Shen Ruichen Yuan Guangjie Huang Zhongwei State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China Drilling Engineering Research Institute CNPC Beijing 100088 China

Rapid solution mining is the key to cavern construction in salt formations. Rapid solution mining technology with self-resonating cavitating water jets is described in this paper. It can generate three main physical effects： helical flow dissolution, self-resonating cavitating jet erosion, and ultrasonic waves. A self-resonating cavitating nozzle was also designed with the principles based on theory of fluid transients and hydro-acoustics. Under ambient pressure, the experimental results show that the impulse amplitude of pressure reaches a peak at a standoff distance of 5-13 times the nozzle outlet diameter and the cutting ability of self-resonating cavitating jets is twice that of conventional jets under the same conditions. Compared with the conventional mining method, the field test indicates that rapid solution mining technology with self-resonating cavitating jets can speed the construction by more than 2 times at the pocket stage of cavern development.

关键词： Cavitating jet underground storage helical flow rapid solution salt cavern

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