Downhole inflow-performance forecast for underground gas storage based on gas reservoir development data

Tang, Lina; Wang, Jieming; Ding, Guoyu; Sun, Shasha; Zhao, Kai; Sun, Jianmeng; Guo, Kai; Bai, Feng‐Wu

doi:10.1016/s1876-3804(16)30016-7

Cited by 18 publications

(5 citation statements)

References 2 publications

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“…In the gas production stage of a gas storage, as the gas production increases, the reservoir pressure decreases, and edge water gradually invades the gas storage. In the gas injection stage, as the injected gas quantity increases, the reservoir pressure increases, and part of the invaded water is driven out by the injected gas [6][7][8][9]. The gas-water mutual drive relative permeability curve can be used to characterize the relative seepage characteristics of gas and water in porous media, and reflect the dynamic interaction between rocks and fluids during formation fluid interaction displacement.…”

Section: Evaluation Of Effective Storage Spacesmentioning

confidence: 99%

Geological Evaluation for Gas Storage Construction in Reservoirs

Ma¹

2020

Handbook of Underground Gas Storages and Technology in China

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The basic geological research on the reconstruction of gas-reservoir-type gas storage mainly focuses on evaluating various construction indices of gas storage. Furthermore, studies seek to optimize suitable oil and gas reservoirs for underground gas storage construction through fine structural research, trap sealing property evaluation, fine reservoir characterization, and 3D fine geological modeling. To be specific, the fine structure research technology is used to

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Section: Evaluation Of Effective Storage Spacesmentioning

confidence: 99%

Geological Evaluation for Gas Storage Construction in Reservoirs

Ma¹

2020

Handbook of Underground Gas Storages and Technology in China

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“…In fact, the situation in which the stored gas cannot be delivered is closely related to the gas storage well patterns, this is because the movement of each party's gas in and out of a gas storage facility is accomplished using wells organized in a specific pattern (Tang et al, 2016a). In the deployment of a gas storage well patterns of gas reservoirs converted into gas storage facilities, because there are few technical reports specifically about gas storage well patterns, gas reservoir development concepts have been primarily used (Yu et al, 2013;Jia et al, 2017;Chen and Wen, 2017;Ma et al, 2018;Liu et al, 2020;Xie et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Deployment and Exploration of a Gas Storage Well Pattern Based on the Threshold Radius

Tang

Zhu

et al. 2021

Acta Geologica Sinica (Eng)

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To tackle the problem that wells that are deployed in a specific pattern based on the requirements of gas reservoir development are not suitable for gas storage, we have conducted concentrically circular injection and production simulation experiments for gas storage, discovered the existence of a threshold radius, denoted by R t , and derived the expression for R t . Based on the analysis and discussion results, we propose a strategy for deploying gas storage wells in specific patterns. The expression for R t shows that it is affected by factors such as the gas storage gas production/injection time, the upper pressure limit, the lower pressure limit, the bottomhole flow pressure at the ends of injection and production, the and permeability. The analysis and discussion results show that the R t of a gas storage facility is much smaller than the R t for gas reservoir development. In the gas storage facilities in China, the R t for gas production is less than the R t for the gas injection, and R t increases with the difference in the operating pressure and with permeability K. Based on the characteristics of R t , we propose three suggestions for gas storage well pattern deployment: (1) calculate R t according to the designed functions of the gas storage facility and deploy the well pattern according to R t ; (2) deploy sparser, large-wellbore patterns in high-permeability areas and denser, small-wellbore patterns in high-permeability areas; and (3) achieve the gas injection well pattern by new drilling, and the gas production well pattern through a combination of the gas injection well pattern and old wells. By assessing a gas storage facility with a perfect well pattern after a number of adjustments, we found that the R t of the 12 wells calculated in this paper is basically close to the corresponding actual radius, which validates our method. The results of this study provide a methodological basis for well pattern deployment in new gas storage construction.

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“…However, it cannot monitor the progress of the water invasion and provides only the final results. The numerical simulation method can be used to study the factors influencing water invasion by constructing a mathematical model and fitting the field production data or experiment results 21‐28 . This method has the advantages of convenience and a wide range of research applications.…”

Section: Introductionmentioning

confidence: 99%

Microscopic characteristics of water invasion and residual gas distribution in carbonate gas reservoirs

Chen

Liu

Zhao

et al. 2021

Energy Science & Engineering

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We used the nuclear magnetic resonance online detection method to analyze the water invasion mechanism and residual gas distribution of a carbonate rock gas reservoir. The T2 spectra obtained by using the Carr‐Purcell‐Meiboom‐Gill (CPMG) pulse sequence were applied to characterize the invasion water and residual gas distribution. The results showed that (a) in the pore‐type gas reservoir, the water first invades the meso–macropores and then the small pores as the pressure decreases further. The fracture distribution in a fracture‐pore‐type gas reservoir has an effect on the water invasion mode. The water can enter the pores through the fracture wall after the water invades the fracture. (b) In the pore‐type gas reservoir, 37.7% of the residual gas resides in the small pores, while the rest resides in the macropores. While in the fracture‐pore‐type gas reservoir, 4.8% ~ 26.8% of the residual gas is in the smaller pores and 69.2% ~ 95.7% in the macropores. Barely, any residual gas resides in the fractures. The residual gas in the small pores is difficult to produce. (c) The residual gas is controlled by the fracture penetration, amount of bottom water, fracture width, and production rate. It is suggested the production rate decreased to induce the water to invade the meso–macropores after the gas well begins to produce water to reduce the amount of residual gas in the meso–macropores.

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Downhole inflow-performance forecast for underground gas storage based on gas reservoir development data

Cited by 18 publications

References 2 publications

Geological Evaluation for Gas Storage Construction in Reservoirs

Geological Evaluation for Gas Storage Construction in Reservoirs

Deployment and Exploration of a Gas Storage Well Pattern Based on the Threshold Radius

Microscopic characteristics of water invasion and residual gas distribution in carbonate gas reservoirs

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