Potential capacity of gas storage caverns in rock salt bedded deposits in Poland

Ślizowski, J.; Lankof, Leszek; Urbańczyk, Kazimierz; Serbin, K.

doi:10.1016/j.jngse.2017.03.028

Cited by 50 publications

(19 citation statements)

References 5 publications

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“…For the salt rock underground storage project, its designed service life is generally about 50 years (Gokce et al., 2009; Ślizowski et al., 2017). In order to use this model to describe the creep behavior of salt rock under the stress that does not exceed the long term strength, the creep failure time t F of salt rock should not be ∞, but a finite value (e.g., 1000 a) that is much larger than the service life of the storage.…”

Section: Discussionmentioning

confidence: 99%

“…the creep failure time is infinite. For the salt rock underground storage, its designed service life is generally around 50 a (Chen et al., 2010; Gokce et al., 2009; Ślizowski et al., 2017). For the convenience of calculation, when the axial stress is lower than the long-term strength, the creep failure time of salt rock can be set as 1000 a (8.76 × 10 6 h).…”

Section: Creep Damage Constitutive Modelmentioning

confidence: 99%

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Creep properties and damage constitutive model of salt rock under uniaxial compression

Wang

Zhang

Song

et al. 2019

International Journal of Damage Mechanics

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To study the creep property of salt rock, uniaxial compression creep tests on salt rock specimens were carried out. The test results indicate that there is no steady creep of the salt rock used in this test in a strict sense. Even in the steady creep stage, the creep rate of salt rock changes continuously over time, but with a relatively smaller change range. When the axial stress does not exceed 9.5 MPa, the isochronous stress–strain curve of salt rock is approximately straight. While the axial stress exceeds 9.5 MPa, the isochronous stress–strain curve deflects to the strain axis, and the larger the axial stress, the more obvious the deflection. Thus, the long-term strength of the salt rock used in this test can be determined as 9.5 MPa. A mathematical expression for predicting the creep failure time of rock is proposed on the basis of assuming the change rule of rock strength over time conforms to the Usher function. Then starting from the variation in deformation modulus with respect to time in the creep process of salt rock, the elastic modulus of the damaged rock material is characterized by the deformation modulus, and the creep damage evolution equation of rock is established. Combined with the continuous damage mechanics theory, a new creep damage constitutive model for rock is proposed. The rationality of the model is verified using the uniaxial compression creep test results of salt rock. The results show that the new model can not only describe the attenuation and the steady creep of salt rock under low stress level, but also reflect the whole creep failure process under high stress level. The predicted curves under different axial stresses are all in good agreement with the test data.

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Section: Discussionmentioning

confidence: 99%

Section: Creep Damage Constitutive Modelmentioning

confidence: 99%

Creep properties and damage constitutive model of salt rock under uniaxial compression

Wang

Zhang

Song

et al. 2019

International Journal of Damage Mechanics

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“…The Cardona Saline Formation (14) is included in this analysis, as the thickness of salt in some areas is proven to attain approximately 300 m at reasonable depths of below 2,000 m for cavern construction [46]. [53]. At the margin of the EPB, bedded Zechstein salt deposits are thinned out and buried at depths shallower than 2,000 m. These deposits are found on the east coast of the UK (17), western, eastern and central Germany (5)(6)(7)(8) and as far south as Upper Silesia in Poland (8)(9)(10)(11)(12).…”

Section: European Salt Basins Suitable For Underground Hydrogen Storagementioning

confidence: 99%

“…A detailed list of publications containing geological maps that were used for the visualization and digitization of the layered and domal salt bodies can be found in the appendix. The suitable salt formations were determined by the literature review[44],[45],[60]-[64],[47]-[49],[53]-[57].Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 16 October 2019 doi:10.20944/preprints201910.0187.v1Peer-reviewed version available at International Journal of Hydrogen Energy 2020; doi:10.1016/j.ijhydene.2019.12.161…”

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confidence: 99%

Technical Potential of Salt Caverns for Hydrogen Storage in Europe

Caglayan

Weber

Heinrichs

et al. 2019

Preprint

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The role of hydrogen in a future energy system with a high share of variable renewable energy sources (VRES) is regarded as crucial in order to balance fluctuations in electricity generation. These fluctuations can be compensated for by flexibility measures such as the expansion of transmission, flexible generation, larger back-up capacity and storage. Salt cavern storage is the most promising technology due to its large storage capacity, followed by pumped hydro storage. For the underground storage of chemical energy carriers such as hydrogen, salt caverns offer the most promising option owing to their low investment cost, high sealing potential and low cushion gas requirement. This paper provides a suitability assessment of European subsurface salt structures in terms of size, land eligibility and storage capacity. Two distinct cavern volumes of 500,000 m3 and 750,000 m3 are considered, with preference being given for salt caverns over bedded salt deposits and salt domes. The storage capacities of individual caverns are estimated on the basis of thermodynamic considerations based on site-specific data. The results are analyzed using three different scenarios: onshore and offshore salt caverns, only onshore salt caverns and only onshore caverns within 50 km of the shore. The overall technical storage potential across Europe is estimated at 84.8 PWhH2, 27% of which constitutes only onshore locations. Furthermore, this capacity decreases to 7.3 PWhH2 with a limitation of 50 km distance from shore. In all cases, Germany has the highest technical storage potential, with a value of 9.4 PWhH2, located onshore only in salt domes in the north of the country. Moreover, Norway has 7.5 PWhH2 of storage potential for offshore caverns, which are all located in the subsurface of the North Sea Basin.

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“…The usage of natural gas resources strongly fluctuates according to the season, while the gas well production is stable (Arfaee and Sola, 2014;Lawal et al, 2017). To balance the mismatch in gas supply and demand, in recent years, some countries have addressed the construction of large-scale storage caverns in salt rock formations (Evans and Chadwick, 2009;Le Duigou et al, 2017;Michalski et al, 2017;Parkes et al, 2018;Shi et al, 2017;Slizowski et al, 2017a). An appropriate leaching method is the key to successful construction of salt cavern gas storage.…”

Section: Introductionmentioning

confidence: 99%

Numerical model and program development of TWH salt cavern construction for UGS

Wan

Peng

Shen

et al. 2019

Journal of Petroleum Science and Engineering

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Underground TWH caverns in salt rock have high construction efficiency and large usable volumes and provides an ideal space for large-scale natural gas storage. In this study, the solution mining process of TWH cavern is thoroughly analyzed. Applying basic principles of the Navier-Stokes equation method and reasonable assumptions, we established a new 3D mathematical model which includes flow and mass transfer and boundary movement for TWH salt cavern construction. Then, the velocity field and the concentration field can be solved by the SIMPLE algorithm, while the boundary movement of cavern expansion can be solved by the VOF algorithm. We developed a new VC++ computer code program TWHSMC for solution mining and herein we present the numerical results. Finally, the simulation cavern shapes results by program are compared with the experimental ones. The results indicate that our model successfully and accurately predicts the cavern shape and demonstrates the reliability and applicability of the model.

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Potential capacity of gas storage caverns in rock salt bedded deposits in Poland

Cited by 50 publications

References 5 publications

Creep properties and damage constitutive model of salt rock under uniaxial compression

Creep properties and damage constitutive model of salt rock under uniaxial compression

Technical Potential of Salt Caverns for Hydrogen Storage in Europe

Numerical model and program development of TWH salt cavern construction for UGS

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