Physical characteristics of high concentrated gas hydrate reservoir in the Shenhu production test area, South China Sea

Jin, Jutao; Wang, Xiujuan; Zhu, Zhenyu; Su, Pibo; Li, Lixia; Li, Qingping; Guo, Yiqun; Jin, Qingjun; Luan, Zhaokun; Zhou, Jilin

doi:10.1007/s00343-021-1435-9

Cited by 3 publications

(1 citation statement)

References 49 publications

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“…Gas hydrate and cold seep were widely observed in the northern and southern SCS margin, whose distribution and saturation are proved to be closely related with geothermal situation and coarse Vol. 41 sedimentation (Jin et al, 2023;Lin et al, 2023;Zhao et al, 2023). Cao et al (2023) investigated Mg/Ca, Ba/Ca, and S/Ca profiles of a bivalve shell fossil for bivalve shells from the Haima cold seep of Qiongdongnan Basin.…”

Section: The Geological Framework and Topographic Variations Of The Scsmentioning

confidence: 99%

Geological environment in the South China Sea

2023

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The South China Sea (SCS), situated in southern China, at the junction of the Pacific Plate, the Eurasian Plate, and the Indian Ocean Plate, is a northeast-southwest trending semi-enclosed sea. It spans an area of approximately 3.5 million square kilometers and has an average water depth of about 1 200 m, its deepest point reaching 5 559 m. In 2021, a scientific expedition (called as U1 voyage) in the South China Sea was organized by the Innovation Research Team of Guangdong Special Key Program from March to April, this marks the first comprehensive scientific research voyage to the southern Uboundary corridor. Consisting of a total of 30 papers, this special issue is to share a portion of the research findings from this scientific expedition U1 voyage, covering six aspects: 1) characteristics of the marine ecosystem in the SCS and its response to marine dynamic processes; 2) multi-scale marine dynamic processes, sea-air interactions, and forecasting techniques in the SCS; 3) geomorphology and geological structure; 4) sedimentary processes and resource potential in the SCS; 5) geostrategy, rights and interests maintenance and strategic countermeasures in the SCS; 6) marine scientific instruments. By integrating the scientific research with the study of history, jurisprudence and international strategies, this issue presents new insights into the formation history and scope evolution of the SCS, and it also seeks to establish a new scientific framework based on the marine governance and development of the SCS.

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Section: The Geological Framework and Topographic Variations Of The Scsmentioning

confidence: 99%

Geological environment in the South China Sea

2023

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Phase transitions of CH4 hydrates in mud-bearing sediments with oceanic laminar distribution: Mechanical response and stabilization-type evolution

Gan,

Li,

Huo

et al. 2025

Fuel

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Systematic Review and Perspectives of Methane (CH₄) Classifications and Production Methods from CH₄ Hydrate Reservoirs

Kasala,

Wang,

Mkono

et al. 2024

Energy Fuels

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Methane (CH 4 ) hydrates represent a promising yet intricate future energy source. Challenges in sustainable offshore extraction, such as fine sand production, CH 4 hydrate reformation, water production, and a possible increase in the bottom well pressure due to sand formation, highlight the need for ongoing research. This study provides a systematic review of CH 4 hydrate classification, evaluating its deposit composition, formation, stability, and extraction potential through various experimental, simulations, and field trial tests and highlighting the factors impairing their effectiveness. Critical factors, such as the kinetic behavior of CH 4 hydrate formation, the impact of geological structures on CH 4 migration and accumulation, and the environmental and technical challenges, are illustrated. The effects of sediment specific and sediment modification at varied temperatures, pressures, and salinity for developing efficient methods for CH 4 recovery from hydrate reserves and optimizing conditions for hydrate storage and transport technologies are also presented. The unique characteristics of Class 1, Class 2, Class 3, and Class 4 CH 4 hydrate reservoirs along with production methods, production factors like the injection rate, temperature, and pressure drop, as well as reservoir parameters such as the permeability, porosity, and surface area are revealed to influence gas production significantly. It is revealed that depressurization is widely recognized across all class types for its effectiveness due to the low economic cost and feasibility of implementation, particularly highlighted in Class 1 and Class 3 reservoirs, where it facilitates the dissociation of CH 4 hydrates for CH 4 recovery, indicating potential extraction rates of up to 75% over two decades. Thermal stimulation and CO 2 swapping also stand out, especially for Class 1 reservoirs, as viable methods contribute to CH 4 extraction by directly heating the reservoir to destabilize hydrates or injecting CO 2 to replace CH 4 in the hydrate structure, simultaneously sequestering CO 2 . Class 2 reservoirs, characterized by low permeability, often require combining depressurization with thermal methods or innovative approaches like CO 2 injection to enhance CH 4 extraction efficiency, indicating potential extraction rates of up to 87.80%. Furthermore, hydraulic fracturing emerges as essential for Class 3 reservoirs by improving the permeability and facilitating gas flow, indicating potential extraction rates of up to 80.60%, thus enhancing CH 4 extraction. Additionally, this review emphasizes the current challenges and suggests potential interventions. The concise synthesis of findings, encompassing both experimental evidence and simulation deductions, as presented in this review, will enhance comprehension regarding screening, designing, and formulating CH 4 extraction strategies.

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Physical characteristics of high concentrated gas hydrate reservoir in the Shenhu production test area, South China Sea

Cited by 3 publications

References 49 publications

Geological environment in the South China Sea

Geological environment in the South China Sea

Phase transitions of CH4 hydrates in mud-bearing sediments with oceanic laminar distribution: Mechanical response and stabilization-type evolution

Systematic Review and Perspectives of Methane (CH₄) Classifications and Production Methods from CH₄ Hydrate Reservoirs

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Physical characteristics of high concentrated gas hydrate reservoir in the Shenhu production test area, South China Sea

Cited by 3 publications

References 49 publications

Geological environment in the South China Sea

Geological environment in the South China Sea

Phase transitions of CH4 hydrates in mud-bearing sediments with oceanic laminar distribution: Mechanical response and stabilization-type evolution

Systematic Review and Perspectives of Methane (CH4) Classifications and Production Methods from CH4 Hydrate Reservoirs

Contact Info

Product

Resources

About

Systematic Review and Perspectives of Methane (CH₄) Classifications and Production Methods from CH₄ Hydrate Reservoirs