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    Investigation on the Long-Term Stability of Multiple Salt Caverns Underground Gas Storage With Interlayers

    Source: Journal of Energy Resources Technology:;2023:;volume( 145 ):;issue: 008::page 81202-1
    Author:
    Peng, Jinghong
    ,
    Zhou, Jun
    ,
    Liang, Guangchuan
    ,
    Peng, Cao
    ,
    Hu, Chengqgiang
    ,
    Guo, Dingfei
    DOI: 10.1115/1.4056938
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Salt cavern underground gas storage (UGS) has attracted more and more attention worldwide for high peak shaving efficiency and high short-term throughput. To ensure the safe operation of this type of UGS, it is necessary to evaluate and analyze its stability. This paper investigates the influences of interlayers and cavern interactions on salt cavern UGS's stability. A 3D geomechanical model of double-salt cavern UGS with interlayers is established based on the geological data and creep constitutive relation of salt rock. Based on the long-term creep numerical simulation, the influences of interlayer number, interlayer thickness, interlayer dip angle, interlayer stiffness, cavern spacing, and cavern pressure difference on the deformation of caverns and stability performance of UGS are studied. The results show that the UGS with greater interlayer numbers has larger cavern deformation. The increase in interlayer thickness will improve the deformation resistance of caverns, but the effect is not obvious. The UGS with an interlayer dip angle of 12.5 deg has the best stability. Soft interlayer will decrease the deformation resistance of caverns, while hard interlayer has the opposite effect. In addition, the UGS stability can be enhanced by reducing the pressure difference between adjacent caverns. It is reasonable that the cavern spacing is twice the cavern diameter, which is beneficial to the UGS stability and will not cause a waste of salt rock resources. Finally, the corresponding production and construction control measures are discussed according to each factor's influence degree.
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      Investigation on the Long-Term Stability of Multiple Salt Caverns Underground Gas Storage With Interlayers

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    contributor authorPeng, Jinghong
    contributor authorZhou, Jun
    contributor authorLiang, Guangchuan
    contributor authorPeng, Cao
    contributor authorHu, Chengqgiang
    contributor authorGuo, Dingfei
    date accessioned2023-08-16T18:35:38Z
    date available2023-08-16T18:35:38Z
    date copyright3/7/2023 12:00:00 AM
    date issued2023
    identifier issn0195-0738
    identifier otherjert_145_8_081202.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4292180
    description abstractSalt cavern underground gas storage (UGS) has attracted more and more attention worldwide for high peak shaving efficiency and high short-term throughput. To ensure the safe operation of this type of UGS, it is necessary to evaluate and analyze its stability. This paper investigates the influences of interlayers and cavern interactions on salt cavern UGS's stability. A 3D geomechanical model of double-salt cavern UGS with interlayers is established based on the geological data and creep constitutive relation of salt rock. Based on the long-term creep numerical simulation, the influences of interlayer number, interlayer thickness, interlayer dip angle, interlayer stiffness, cavern spacing, and cavern pressure difference on the deformation of caverns and stability performance of UGS are studied. The results show that the UGS with greater interlayer numbers has larger cavern deformation. The increase in interlayer thickness will improve the deformation resistance of caverns, but the effect is not obvious. The UGS with an interlayer dip angle of 12.5 deg has the best stability. Soft interlayer will decrease the deformation resistance of caverns, while hard interlayer has the opposite effect. In addition, the UGS stability can be enhanced by reducing the pressure difference between adjacent caverns. It is reasonable that the cavern spacing is twice the cavern diameter, which is beneficial to the UGS stability and will not cause a waste of salt rock resources. Finally, the corresponding production and construction control measures are discussed according to each factor's influence degree.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInvestigation on the Long-Term Stability of Multiple Salt Caverns Underground Gas Storage With Interlayers
    typeJournal Paper
    journal volume145
    journal issue8
    journal titleJournal of Energy Resources Technology
    identifier doi10.1115/1.4056938
    journal fristpage81202-1
    journal lastpage81202-12
    page12
    treeJournal of Energy Resources Technology:;2023:;volume( 145 ):;issue: 008
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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