Purposefully built underground natural gas storage

Wang, Xiuli; Economides, Michael J.

doi:10.1016/j.jngse.2012.06.003

Cited by 34 publications

(11 citation statements)

References 15 publications

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“…There are several vital strategies for natural gas storage such as gas tanks, salt caverns, and gas pipeline [5]. Owning to its advantages of a large storage capacity and 2 of 20 superior economy, underground gas storage reservoirs (UGSRs) has been widely used in North America and Europe, and has also gained increasing attention in China [6][7][8][9][10][11]. Underground gas storage is mostly a seasonal operation that usually is charged in summer and discharged in winter.…”

Section: Introductionmentioning

confidence: 99%

Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

et al. 2020

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Underground gas storage reservoirs (UGSRs) are used to keep the natural gas supply smooth. Native natural gas is commonly used as cushion gas to maintain the reservoir pressure and cannot be extracted in the depleted gas reservoir transformed UGSR, which leads to wasting huge amounts of this natural energy resource. CO2 is an alternative gas to avoid this particular issue. However, the mixing of CO2 and CH4 in the UGSR challenges the application of CO2 as cushion gas. In this work, the Donghae gas reservoir is used to investigate the suitability of using CO2 as cushion gas in depleted gas reservoir transformed UGSR. The impact of the geological and engineering parameters, including the CO2 fraction for cushion gas, reservoir temperature, reservoir permeability, residual water and production rate, on the reservoir pressure, gas mixing behavior, and CO2 production are analyzed detailly based on the 15 years cyclic gas injection and production. The results showed that the maximum accepted CO2 concentration for cushion gas is 9% under the condition of production and injection for 120 d and 180 d in a production cycle at a rate of 4.05 kg/s and 2.7 kg/s, respectively. The typical curve of the mixing zone thickness can be divided into four stages, which include the increasing stage, the smooth stage, the suddenly increasing stage, and the periodic change stage. In the periodic change stage, the mixed zone increases with the increasing of CO2 fraction, temperature, production rate, and the decreasing of permeability and water saturation. The CO2 fraction in cushion gas, reservoir permeability, and production rate have a significant effect on the breakthrough of CO2 in the production well, while the effect of water saturation and temperature is limited.

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Section: Introductionmentioning

confidence: 99%

Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

et al. 2020

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“…According to the US Energy Information Administration (EIA), over the next 20 years, the average growth rate of natural gas demand in China is likely to be over 11% per year, far ahead of developed countries and other developing countries. These data suggest that natural gas will be in great demand in the future [4]. With rapid development of the natural gas industry in China, the fluctuations and crises that arise from imbalances in the seasonal demand for natural gas are becoming increasingly prominent [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Among these, UGS is the most popular type of gas storage project [8][9][10]. UGS involves storing a mass volume of natural gas within the porous media of cores at different depths [4]. Its main function of operation is the transmission of natural gas from one reservoir to another closer to the consumer market to avoid volatility of natural gas supply and economical demand.…”

Section: Introductionmentioning

confidence: 99%

Research on Injection-Production Capability and Seepage Characteristics of Multi-Cycle Operation of Underground Gas Storage in Gas Field—Case Study of the Wen 23 Gas Storage

et al. 2020

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With the increasing energy demands of current modern society, underground gas storage (UGS) in gas fields is the most popular type of UGS used to meet the seasonal variation of gas consumption. However, compared with gas fields, UGS in gas fields has the characteristics of periodic high-speed injection and production of exploitation modes and operation rules, which causes the rules of gas-water seepage and utilization of reserves to be more particular and complicated. In this paper, based on Wen 23 gas storage, the rules of multicycle injection and production flow and the utilization of UGS pore volume were investigated. The experimental results showed that variation in porosity and permeability caused by injection and production pressure changes in Wen 23 gas storage can be neglected. The pore volume of gas storage and the degree of gas recovery increased gradually in the pre-UGS gas zone, which was higher than that of reservoirs. In the initial stage of UGS operation, the pore volume of gas storage and the degree of gas recovery were low in the gas-drive-water gas zone as a result of water invasion during the process of reservoir exploitation. During operation of multicycle high-speed injection and production, the seepage conditions in the gas-drive-water gas zone gradually improved. The higher the reservoir permeability, the greater increases in pore volume and degree of gas recovery. In the gas-water transition zone, gas and water were reciprocated and displaced with the multicycle injection-production of UGS, resulting in the gradual deterioration of pore volume and gas recovery, which remained stable at a low value. The negative effects of reservoir heterogeneity on the effective utilization of UGS occurred in the gas-water transition zone. These findings may contribute to a better understanding of the rules of multicycle injection and production flow and utilization of UGS to optimize the injection-production efficiency of Wen 23 gas storage.

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“…Hence it has attracted the attention of the policy makers in several countries including China and India for its commercial and industrial use. 1 However the challenge of safe and compact storage of NG, due to its low energy density need to be addressed before it can be considered for its large scale use in various portable as well as stationary applications. Among the various storage methods available at present such as compressed natural gas (CNG), liquefied natural gas (LNG) and adsorbed natural gas (ANG), the last option (i.e., ANG) offers many benefits interalia safety, design flexibility of the storage tank, low cost etc.. [2][3][4][5][6][7] On the other hand the exothermic and endothermic nature of the adsorption and desorption processes with poor transport properties of the adsorbent particles strongly affects the storage and delivery capacity, thereby reducing the driving range of the vehicles substantially, when ANG is used for transport applications.…”

Section: Introductionmentioning

confidence: 99%

A new tank configuration for large scale storage of natural gas in adsorbed form

Sahoo¹,

Mopuri²

2017

IPCSE

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In the subject work a multi tubular reactor with provision for internal heat recovery is proposed for storing of natural gas (NG) in adsorbed form using highly micro porous adsorbent such as activated carbon and subsequent discharging. The proposed reactor is suitable for large scale storage of NG without any external heating and cooling. The water present in the shell side of the shell-and-tube type reactor absorbs heat during charging keeps the tubes packed with adsorbent relatively cooler and releases heat during discharging of NG thereby accelerates the charging and discharging process. The transient behaviour of the proposed system is predicted by numerically solving the corresponding heat and mass transfer equations. Simulation is being carried out for constant pressure (35 bar) charging and constant pressure (1 bar) discharging till a stable cycle is attained. The novelty of the system lies in the fact that the proposed reactor does not need any external energy input, at the same time offering high delivery capacity. Moreover, the system works under pressure swing principle. Parametric studies as well as second law analysis are presented to identify suitable water circulation rates and initial fluid temperature by minimizing net entropy generation.

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Purposefully built underground natural gas storage

Cited by 34 publications

References 15 publications

Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

Research on Injection-Production Capability and Seepage Characteristics of Multi-Cycle Operation of Underground Gas Storage in Gas Field—Case Study of the Wen 23 Gas Storage

A new tank configuration for large scale storage of natural gas in adsorbed form

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