Monitoring and Balance of Gas Flow in Underground Gas Storage

Danel, Roman; Otte, Lukas; Vančura, Vladislav; Řepka, Michal

doi:10.1016/j.proeps.2013.01.063

Cited by 8 publications

(2 citation statements)

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“…The usage of natural gas resources strongly fluctuates according to the season, while the gas well production is stable 1 , 2 . To balance the mismatch in gas supply and demand, the underground gas storage (UGS) has been used effectively as peak shaving means for nearly a century 3 – 5 . As one of the UGSs, salt cavern gas storage is constructed by cavern leaching in the sedimentary formation of salt rock, which formed from the drying up of enclosed salt lakes and seas 6 .…”

Section: Introductionmentioning

confidence: 99%

Mathematical model of salt cavern leaching for gas storage in high-insoluble salt formations

Shi

Yang

et al. 2018

Sci Rep

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A mathematical model is established to predict the salt cavern development during leaching in high-insoluble salt formations. The salt-brine mass transfer rate is introduced, and the effects of the insoluble sediments on the development of the cavern are included. Considering the salt mass conservation in the cavern, the couple equations of the cavern shape, brine concentration and brine velocity are derived. According to the falling and accumulating rules of the insoluble particles, the governing equations of the insoluble sediments are deduced. A computer program using VC++ language is developed to obtain the numerical solution of these equations. To verify the proposed model, the leaching processes of two salt caverns of Jintan underground gas storage are simulated by the program, using the actual geological and technological parameters. The same simulation is performed by the current mainstream leaching software in China. The simulation results of the two programs are compared with the available field data. It shows that the proposed software is more accurate on the shape prediction of the cavern bottom and roof, which demonstrates the reliability and applicability of the model.

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Section: Introductionmentioning

confidence: 99%

Mathematical model of salt cavern leaching for gas storage in high-insoluble salt formations

Shi

Yang

et al. 2018

Sci Rep

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“…Natural gas is an important nonrenewable energy resource − that is considered by many industries as an ideal strategy. Thus, consumers try to provide storage facilities and equipment to protect themselves against possible fluctuations and crises from natural gas shortages. , Although various natural gas storage methods exist, underground gas storage (UGS) is among the preferred storage methods around the world to preserve large volumes of gas substances. Compared with ground storage facilities, UGS facilities in depleted oil and gas fields, salt caverns, or aquifers − have the advantages of a large storage capacity, durability, and safety .…”

Section: Introductionmentioning

confidence: 99%

Simulation and Optimization of Surface Gas Injection Systems for Underground Gas Storage

Lin,

Yan,

Liu

et al. 2023

ACS Omega

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With the rapid development and popularization of sensing technology and information technology, the demand for intelligence in the oil and gas industry and gas storage has increased. The optimized operation of surface engineering is an important part of intelligence. To master the operation law of the surface engineering of gas storage, improve the production management level, and reduce the cost of gas injection, we investigated the simulation and optimization of a surface gas injection system for practical underground gas storage. We propose calculation formulas for gas injection well pressure separately according to the ideal gas equation of state, the van der Waals equation, and the R-K equation and verify them using actual data. By comparing the calculation error of the data and the complexities for both the equation and the calculation process, we finally choose the formula derived from the ideal gas equation of state as the constraint condition for our research. Moreover, we model the surface gas injection system by using the Aspen HYSYS simulation software. From the variation in the compressor power, we determine that the equalizing pressure injection pattern is the optimal injection pattern and the optimal number of injection wells is three. In addition, we examine the relationship between injection flow and well pressure with injection time under the optimal injection pattern. Finally, we obtain the functional formula of well pressure and injection flow with injection time. The results can provide not only a basis for the gas injection decision making of production systems but also a basic guarantee for the digital transformation and intelligent operation of enterprises.

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Study on Site Selection Method for Rebuilding Gas Storage by Lithologic Gas Reservoir – Taking S Gas Storage as an Example

Yang

Wang

Wang³

et al. 2023

Springer Series in Geomechanics and Geoengineering

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Monitoring and Balance of Gas Flow in Underground Gas Storage

Cited by 8 publications

References 0 publications

Mathematical model of salt cavern leaching for gas storage in high-insoluble salt formations

Mathematical model of salt cavern leaching for gas storage in high-insoluble salt formations

Simulation and Optimization of Surface Gas Injection Systems for Underground Gas Storage

Study on Site Selection Method for Rebuilding Gas Storage by Lithologic Gas Reservoir – Taking S Gas Storage as an Example

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