Determination of actual dissolution rates from some rock properties in construction of deep salt cavern for natural gas storage

Bayram, Fatih; Bektasoglu, Ilker

doi:10.1016/j.ijrmms.2019.104183

Cited by 19 publications

(8 citation statements)

References 10 publications

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“…The latter remains at rest, i.e. its velocity is equal to zero, which is compatible with equation (9).…”

Section: Lagrangian Formulation Of (8)supporting

confidence: 68%

“…For example, mineral dissolution alters the hydraulic conductivity of soils [57] and calcite dissolution in seawater is a key mechanism affecting the global carbon budget of the planet [41]. Several emerging technologies rely on an in-depth understanding of dissolution mechanisms, such as the storage of natural gas in underground caverns located in deep salt domes [9], the assessment of the long-term storage capacity of CO 2 in carbonate formations [22,50], and the chemical stimulation of geothermal reservoirs [35]. Other industrial processes, such as water desalination, also rely on the dissolution of CaCO 3 [31].…”

Section: Introductionmentioning

confidence: 99%

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Improvement of remeshed Lagrangian methods for the simulation of dissolution processes at pore-scale

Etancelin

Moonen

Poncet

2020

Advances in Water Resources

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This article shows how to consistently and accurately manage the Lagrangian formulation of chemical reaction equations coupled with the superficial velocity formalism introduced in the late 80s by Quintard and Whitaker. Lagrangian methods prove very helpful in problems in which transport effects are strong or dominant, but they need to be periodically put back in a regular lattice, a process called remeshing. In the context of digital rock physics, we need to ensure positive concentrations and regularity to accurately handle stagnation point neighborhoods. These two conditions lead to the use of kernels resulting in extra-diffusion, which can be prohibitively high when the diffusion coefficient is small. This is the case especially for reactive porous media, and the phenomenon is reinforced in porous rock matrices due to Archie's law. This article shows how to overcome this difficulty in the context of a two-scale porosity model applied in the Darcy-Brinkman-Stokes equations, and how to obtain simultaneous sign preservation, regularity and accurate diffusion, and apply it to dissolution processes at the pore scale of actual rocks.

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“…The latter remains at rest, i.e. its velocity is equal to zero, which is compatible with equation (9).…”

Section: Lagrangian Formulation Of (8)supporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Improvement of remeshed Lagrangian methods for the simulation of dissolution processes at pore-scale

Etancelin

Moonen

Poncet

2020

Advances in Water Resources

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“…erefore, the salt rock stratum is internationally considered as an ideal medium for underground storage of energy resources and disposal of radioactive waste. According to statistics, western developed countries, such as United States, France, and Germany, have built a large number of salt rock underground storages as national strategic energy reservoirs [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Creep Properties and Constitutive Model of Salt Rock

Zhang

Song

Wang

et al. 2021

Advances in Civil Engineering

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Due to the advantages of low porosity, low permeability, high ductility, and excellent capacities for creep and damage self-healing, salt rock is internationally considered as the ideal medium for underground storage of energy and disposal of radioactive waste. As one of the most important mechanical properties of salt rock, creep properties are closely related to the long-term operation stability and safety of salt rock underground storage cavern. A comprehensive review on the creep properties and constitutive model of salt rock is put forward in this paper. The opinions and suggestions on the research priority and direction of salt rock's mechanical properties in the future are put forward: (1) permeability variation of salt rock under the coupling effect of temperature and stress; (2) damage mechanism and evolution process under the effect of creep-fatigue interaction and low frequency cyclic loading; (3) microdeformation mechanisms of salt rock and the relationship between microstructure variations and macrocreep behavior during creep process; (4) the establishment of the creep damage constitutive model with simple form, less parameters, easy application, and considering the damage self-healing ability of salt rock simultaneously.

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“…Rock salt has good plastic deformation, low permeability, self-healing and is soluble (Bayram and Bektasoglu, 2020;Chen et al, 2020;Wang et al, 2019). It is regarded as the most ideal host for geologic energy (gas, oil and compressed air) storage.…”

Section: Introductionmentioning

confidence: 99%

“…Salt caverns have been widely constructed for gas storage. Due to its rapid injection and delivery capacity (Bayram and Bektasoglu, 2020;Wang et al, 2018b), salt cavern gas storage is usually used for the continuous gas supply under emergency, such as extreme weather, trunk pipeline accident, and facility maintenance. The capacity of the gas storage salt cavern is mainly determined by its volume, and maximum and minimum gas pressure (Ozarslan, 2012;Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Minimum operating pressure for a gas storage salt cavern under an emergency: a case study of Jintan, China

Wang

An²,

Xu³

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Decreasing the gas pressure is one of the most effective methods to increase the working gas capacity of salt cavern Underground Gas Storages (UGS). In this paper, KING-1 and -2 caverns of Jintan salt cavern UGS, Jiangsu province, China, are studied as an example to investigate their responses under extremely low gas pressure. A 3D geomechanical model of the two caverns is built based on the geological features and rock properties of the host rock salt formation. Different operating conditions are simulated. Safety evaluation criteria for completion casing and caverns are proposed. Thresholds of the indicators consisting of the criteria are given to find the potential minimum gas pressure and the safe working duration of the two caverns. Calculation results indicate that axial strain (along the vertical direction) can perfectly reflect the effects of low gas pressure on the safety of completion casing. The indicators calculated based on the stresses have advantages compared to those based on deformation in assessing the safety of the salt cavern under such low gas pressure and short operating time conditions. The minimum gas pressure gradient of KING-1 and -2 caverns at the casing shoe can decrease from about 7 kPa/m to 5 kPa/m, viz., the minimum gas pressure can decrease from 7 MPa to 5 MPa. The maximum duration for 5 MPa is no more than 118 days. Taking KING-1 cavern as an example, the working gas volume can increase about 17.3%. Research results can provide references for Jintan salt cavern UGS coping with gas shortages.

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Determination of actual dissolution rates from some rock properties in construction of deep salt cavern for natural gas storage

Cited by 19 publications

References 10 publications

Improvement of remeshed Lagrangian methods for the simulation of dissolution processes at pore-scale

Improvement of remeshed Lagrangian methods for the simulation of dissolution processes at pore-scale

Creep Properties and Constitutive Model of Salt Rock

Minimum operating pressure for a gas storage salt cavern under an emergency: a case study of Jintan, China

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