Numerical analysis on gas production performance by using a multilateral well system at the first offshore hydrate production test site in the Shenhu area

X Cao, J Sun, F Qin, F Ning, P Mao, Y Gu, Y Li… - Energy, 2023 - Elsevier
Multilateral well technique is a promising approach to enhance gas recovery, especially in
heterogeneous hydrate reservoirs with underlying free gas. However, little is known about …

Dynamic analysis of exploitation of different types of multilateral wells of a hydrate reservoir in the South China sea

Y Hao, F Yang, J Wang, M Fan, S Li, S Yang… - Energy & …, 2022 - ACS Publications
The multilateral well exploitation technique is a technical approach to the efficient
exploitation of natural gas hydrate that deserves to be explored. In this paper, a numerical …

Numerical study of gas production from fine-grained hydrate reservoirs using a multilateral horizontal well system

P Mao, Y Wan, J Sun, Y Li, G Hu, F Ning, N Wu - Applied Energy, 2021 - Elsevier
Natural gas hydrate is prevalent in ultralow-permeability fine-grained sediments with
substantial reserves. However, effective and safe gas production from fine-grained hydrate …

Gas recovery enhancement from fine-grained hydrate reservoirs through positive inter-branch interference and optimized spiral multilateral well network

P Mao, N Wu, Y Wan, F Ning, J Sun, X Wang… - Journal of Natural Gas …, 2022 - Elsevier
A spiral multilateral well network is a promising production method to enhance long-term
gas recovery from prevalent fine-grained hydrate reservoirs. However, practical application …

Numerical simulation of productivity improvement of natural gas hydrate with various well types: Influence of branch parameters

H Ye, X Wu, D Li, Y Jiang - Journal of Natural Gas Science and …, 2022 - Elsevier
The depressurization method and its modified scheme may be the best way to efficiently
recover marine natural gas hydrate (NGH) from the reservoir. However, the capacity of …

Enhanced gas production efficiency of class 1, 2, 3 hydrate reservoirs using hydraulic fracturing technique

J Xu, H Qin, H Li, C Lu, S Li, D Wu - Energy, 2023 - Elsevier
Current gas hydrate production test indicates that it is difficult to reach the commercial level
for low permeability hydrate-bearing formation by depressurization method. Hydraulic …

Numerical simulation of natural gas hydrate exploitation in complex structure wells: Productivity improvement analysis

H Ye, X Wu, D Li - Mathematics, 2021 - mdpi.com
About 90% of the world's natural gas hydrates (NGH) exist in deep-sea formations, a new
energy source with great potential for exploitation. There is distance from the threshold of …

Numerical evaluation on the effect of horizontal-well systems on the long-term gas hydrate production behavior at the second Shenhu test site

T Yu, G Guan, D Wang, Y Song, A Abudula - Journal of Natural Gas …, 2021 - Elsevier
Abstract In 2019–2020, the second natural gas hydrate field trial was successfully performed
in the Shenhu Area of the South China Sea by using a horizontal well, however, the long …

Long-term numerical simulation of a joint production of gas hydrate and underlying shallow gas through dual horizontal wells in the South China Sea

R Wei, Y Xia, Z Wang, Q Li, X Lv, S Leng, L Zhang… - Applied Energy, 2022 - Elsevier
Recent field tests to recover natural gas from marine gas hydrate reservoirs in Japan and
China have exhibited worldwide attention to this strategic energy form; significant …

Numerical Investigation on Gas Production Performance in Methane Hydrate of Multilateral Well under Depressurization in Krishna‐Godavari Basin

X Xin, S Li, T Xu, Y Yuan - Geofluids, 2021 - Wiley Online Library
Nature gas hydrate is a new kind of clean and potential resources. Depressurization is
regarded as the most effective and promising hydrate production technology. One of the key …