Numerical study on gas production via a horizontal well from hydrate reservoirs with different slope angles in the South China Sea

Tingting Luo; Jianlin Song; Xiang Sun; Fanbao Cheng; Madhusudhan Bangalore Narasimha Murthy; Yulu Chen; Yi Zhao; Yongchen Song

doi:10.1002/dug2.12103

Deep Underground Science and Engineering ›› 2024, Vol. 3 ›› Issue (2) : 171-181. DOI: 10.1002/dug2.12103

RESEARCH ARTICLE

Numerical study on gas production via a horizontal well from hydrate reservoirs with different slope angles in the South China Sea

Tingting Luo¹ ,
Jianlin Song¹ ,
Xiang Sun² ,
Fanbao Cheng³ ,
Madhusudhan Bangalore Narasimha Murthy⁴ ,
Yulu Chen¹ ,
Yi Zhao¹ ,
Yongchen Song³

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Highlights

• The response of hydrate reservoirs with various angle slopes to gas production is predicted.

• Low permeability would limit the long-term gas recovery rates of clayey reservoirs.

• Reservoirs without slope angle show the highest gas production and seabed settlement.

• There is a risk of potential damage of the production wellbore during long-term gas production.

Keywords

effective stress / low-permeability reservoirs / natural gas hydrate production / numerical simulation / settlement / slope angle / the South China Sea

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Tingting Luo, Jianlin Song, Xiang Sun, Fanbao Cheng, Madhusudhan Bangalore Narasimha Murthy, Yulu Chen, Yi Zhao, Yongchen Song. Numerical study on gas production via a horizontal well from hydrate reservoirs with different slope angles in the South China Sea. Deep Underground Science and Engineering, 2024, 3(2): 171‒181 https://doi.org/10.1002/dug2.12103

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2024 2024 The Author(s). Deep Underground Science and Engineering published by John Wiley & Sons Australia, Ltd on behalf of China University of Mining and Technology.