Research progress and scientific challenges in the depressurization exploitation mechanism of clayey-silt natural gas hydrates in the northern South China Sea.

C Lu, X Qin, J Sun, R Wang… - Advances in Geo-Energy …, 2023 - search.ebscohost.com
Natural gas hydrate reservoirs in the northern South China Sea primarily comprise clayey
silt, making exploitation more challenging relative to sandy reservoirs in other countries and …

[HTML][HTML] A review of the gas hydrate phase transition with a microfluidic approach

Q Liu, Y Liu, J Xu, Y Teng, Z Ling, Y Zhang, L Jiang… - Energy Reviews, 2023 - Elsevier
Over the years, natural gas hydrates (NGHs) have attracted significant attention as an
emerging energy resource. Microfluidics is a novel technology used to observe the …

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 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 …

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 …

Synergistic CH4 hydrate recovery and CO2 storage by coupling depressurization with CO2/N2 injection: A pilot-scale investigation

M Niu, Y Yao, Z Yin, K Liu, P Bian, M Zi… - Chemical Engineering …, 2023 - Elsevier
To ensure sustainable energy supply while mitigating climate change, combining CH 4
recovery with CO 2 storage in marine natural gas hydrate (NGH) reservoirs is a promising …

Experimental study on hydraulic fracturing behavior of frozen clayey silt and hydrate-bearing clayey silt

X Ma, D Jiang, Y Sun, S Li - Fuel, 2022 - Elsevier
There are critical problems in the field trials of natural gas hydrate (NGH) production, such
as low production rate, limited recovery range and short period of stabilized production …

Sand-rich gas hydrate and shallow gas systems in the Qiongdongnan Basin, northern South China Sea

J Ren, C Cheng, P Xiong, Z Kuang, J Liang… - Journal of Petroleum …, 2022 - Elsevier
In 2019, the sand-rich gas hydrate and shallow gas (GHSG) reservoirs have been drilled in
the Qiongdongnan Basin, northern South China Sea. As a conventional energy resource …

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 …

Enhanced gas production from silty clay hydrate reservoirs using multi-branch wells combined with multi-stage fracturing: Influence of fracture parameters

S Li, Y Guo, D Wu, L Liu, N Zhang - Fuel, 2024 - Elsevier
Natural gas hydrates are typically deposited in low-permeability clayey-silty sediments with
low gas production. The two main methods for enhancing gas production are complex …