The influence of thermodynamic effects on gas storage cavern convergence

Serbin, K.; Ślizowski, J.; Urbańczyk, Kazimierz; Nagy, Stanisław

doi:10.1016/j.ijrmms.2015.08.017

Cited by 44 publications

(12 citation statements)

References 6 publications

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“…where: K(t−∆t)-volumetric convergence of cavern over time t−∆t, ∆t = 1 f -delay time caused by the delaying action of the overlying rock mass. The basic component of the computational model consists of the correct definition of the initial condition in the form of volumetric convergence of a single cavern [41].…”

Section: Methods Of Surface Deformation Prediction For a Large Field Omentioning

confidence: 99%

Surface Deformations Caused by the Convergence of Large Underground Gas Storage Facilities

et al. 2021

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The article presents a method of forecasting the deformation of the land surface over large fields of underground gas storage facilities located in salt caverns. The solution allows for taking into account many parameters characterising the operation of underground gas storage facilities, such as cavern processes (leaching, enlargement, operational, etc.), their depth, distribution, diameter, shape, and many others. The advantage of the applied method over other available options is the possibility of using it for large fields of caverns while keeping the calculations simple. The effectiveness of the method has been proven for predicted surface subsidence for the EPE field with 114 underground caverns. The hypothesis was compared with the measurement outcomes.

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Section: Methods Of Surface Deformation Prediction For a Large Field Omentioning

confidence: 99%

Surface Deformations Caused by the Convergence of Large Underground Gas Storage Facilities

et al. 2021

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“…Natural gas transport and distribution networks are very well developed; therefore, the hydrogen pipeline system is directly compared to the natural gas transmission system [22]. The natural gas system consists of gas compression stations, pipelines, gas stations and gas storage facilities, including caverns [23]. The gas compression station provides the energy needed to generate gas flow at a given rate and pressure.…”

Section: Basics Of Hydrogen Transmissionmentioning

confidence: 99%

Thermodynamic and Technical Issues of Hydrogen and Methane-Hydrogen Mixtures Pipeline Transmission

et al. 2019

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The use of hydrogen as a non-emission energy carrier is important for the innovative development of the power-generation industry. Transmission pipelines are the most efficient and economic method of transporting large quantities of hydrogen in a number of variants. A comprehensive hydraulic analysis of hydrogen transmission at a mass flow rate of 0.3 to 3.0 kg/s (volume flow rates from 12,000 Nm3/h to 120,000 Nm3/h) was performed. The methodology was based on flow simulation in a pipeline for assumed boundary conditions as well as modeling of fluid thermodynamic parameters for pure hydrogen and its mixtures with methane. The assumed outlet pressure was 24 bar (g). The pipeline diameter and required inlet pressure were calculated for these parameters. The change in temperature was analyzed as a function of the pipeline length for a given real heat transfer model; the assumed temperatures were 5 and 25 °C. The impact of hydrogen on natural gas transmission is another important issue. The performed analysis revealed that the maximum participation of hydrogen in natural gas should not exceed 15%–20%, or it has a negative impact on natural gas quality. In the case of a mixture of 85% methane and 15% hydrogen, the required outlet pressure is 10% lower than for pure methane. The obtained results present various possibilities of pipeline transmission of hydrogen at large distances. Moreover, the changes in basic thermodynamic parameters have been presented as a function of pipeline length for the adopted assumptions.

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“…This section focuses on two major issues in cavern operation: the value of the minimum gas pressure, and the cycling rate. Concerning the minimum gas pressure, choosing a value around 20% of the geostatic pressure is fairly common (Serbin et al 2015). However, lower values allow to be more economically profitable and more conservative from a cavern design perspective, even in the case of catastrophic scenarios such as blowouts during which the cavern pressure can drop quickly and remain as low as the atmospheric pressure for large amounts of time (Bérest et al 2013).…”

Section: Application To Cavern Designmentioning

confidence: 99%

Dilatancy Criteria for Salt Cavern Design: A Comparison Between Stress- and Strain-Based Approaches

Labaune,

Rouabhi,

Tijani

et al. 2017

Rock Mech Rock Eng

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International audienceThis paper presents a new approach for salt cavern design, based on the use of the onset of dilatancy as a design threshold. In the proposed approach, a rheological model that includes dilatancy at the constitutive level is developed, and a strain-based dilatancy criterion is defined. As compared to classical design methods that consist in simulating cavern behavior through creep laws (fitted on long-term tests) and then using a criterion (derived from short-terms tests or experience) to determine the stability of the excavation, the proposed approach is consistent both with short- and long-term conditions. The new strain-based dilatancy criterion is compared to a stress-based dilatancy criterion through numericalsimulations of salt caverns under cyclic loading conditions. The dilatancy zones predicted by the strain-based criterion are larger than the ones predicted by the stress-based criteria, which is conservative yet constructive for design purposes

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The influence of thermodynamic effects on gas storage cavern convergence

Cited by 44 publications

References 6 publications

Surface Deformations Caused by the Convergence of Large Underground Gas Storage Facilities

Surface Deformations Caused by the Convergence of Large Underground Gas Storage Facilities

Thermodynamic and Technical Issues of Hydrogen and Methane-Hydrogen Mixtures Pipeline Transmission

Dilatancy Criteria for Salt Cavern Design: A Comparison Between Stress- and Strain-Based Approaches

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