Prediction of Gas Hydrate Formation in the Wellbore

Xinyue Duan, Jiaqiang Zuo, Jiadong Li (), Yu Tian, Chuanyong Zhu and Liang Gong
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Xinyue Duan: College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
Jiaqiang Zuo: Research Institute of Petroleum Engineering, Shingle Oil Field, Dongying 257068, China
Jiadong Li: College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
Yu Tian: College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
Chuanyong Zhu: College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
Liang Gong: College of New Energy, China University of Petroleum (East China), Qingdao 266580, China

Energies, 2023, vol. 16, issue 14, 1-10

Abstract: The formation of gas hydrates due to temperature and pressure changes during gas storage in the wellbore poses significant danger, necessitating the prediction of temperature and pressure distribution as well as of hydrate formation locations. We establish a temperature model that couples total thermal resistance and temperature in the wellbore-stratum composite medium system. Utilizing the two-phase pressure model alongside the temperature model, we conduct coupling calculations of temperature and pressure. Based on both temperature and pressure distribution within the wellbore and hydrate formation curve, we predict hydrate formation regions during production and analyze factors influencing temperature and pressure distribution. Results indicate that gas production rate and specific gravity of natural gas are major influencers on wellbore temperature and pressure distribution, while production time has minimal impact.

Keywords: natural gas; hydrate; wellbore; gas production rate; specific gravity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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