Results 21 to 30 of about 30,107 (263)

Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments

open access: yesEnergies, 2022
The acoustic characteristics of hydrates are important parameters in geophysical hydrate exploration and hydrate resource estimation. The microscale distribution of hydrate has an important influence on the acoustic response of a hydrate-bearing ...
Qingtao Bu   +9 more
doaj   +1 more source

Geological Distribution of the Miocene Carbonate Platform in the Xisha Sea Area of the South China Sea, and Its Implications for Hydrocarbon Exploration

open access: yesApplied Sciences, 2022
The newly collected seismic data and the existing drilling data provide a good opportunity to better understand the carbonate platform distribution characteristics and the hydrocarbon resource potential in the Xisha sea area of the South China Sea. Based
Zhen Yang   +11 more
doaj   +1 more source

Acoustic characterization for creep behaviors of marine sandy hydrate-bearing sediment

open access: yesScientific Reports, 2023
Marine natural gas hydrate (NGH) is a promising substitutive low-carbon energy resource, whereas NGH-production induced geoengineering concerns remain challenging. Advanced forecast of possible geoengineering risks is the fundamental for eco-friendly NGH
Yanlong Li   +7 more
doaj   +1 more source

Numerical Simulation on Sand Production Based on Laboratory Gas Hydrate Production Experiment

open access: yesJournal of Marine Science and Engineering, 2023
Gas from natural gas hydrate (NGH) is priced competitively with gas prices. Most marine NGH is stored in low cementing strata, which easily cause sand production problems, restricting the commercial production and environmental safety of NGH’s ...
Jingsheng Lu   +7 more
doaj   +1 more source

Effects of the NaCl Concentration and Montmorillonite Content on Formation Kinetics of Methane Hydrate

open access: yesJournal of Marine Science and Engineering, 2022
Most resources of natural gas hydrate (NGH) exist in marine sediments where salts and sea mud are involved. It is of great importance to investigate the effects of salts and sea mud on NGH formation kinetics. In this study, the mixture of silica sand and
Haopeng Zeng   +4 more
doaj   +1 more source

Improved Formation Kinetics of Carbon Dioxide Hydrate in Brine Induced by Sodium Dodecyl Sulfate

open access: yesEnergies, 2021
Due to high efficiency and low cost, hydrate-based desalination is investigated as a pretreatment method for seawater desalination. To improve the formation rate of hydrates, the effect of sodium dodecyl sulfate (SDS) on CO2 hydrate formation from a 3.5 ...
Lu Liu   +4 more
doaj   +1 more source

Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

open access: yesEnergies, 2014
Based on the available measurement data and literature on the hydrate deposits of the South China Sea, a numerical simulation with a new dual horizontal well system has been carried out.
Jing-Chun Feng   +5 more
doaj   +1 more source

Study on Hydrate Production Behaviors by Depressurization Combined with Brine Injection in the Excess-Water Hydrate Reservoir

open access: yesEntropy, 2022
Depressurization combined with brine injection is a potential method for field production of natural gas hydrate, which can significantly improve production efficiency and avoid secondary formation of hydrate.
Haopeng Zeng   +4 more
doaj   +1 more source

High-pressure gas hydrates [PDF]

open access: yesPhys. Chem. Chem. Phys., 2008
It has long been known that crystalline hydrates are formed by many simple gases that do not interact strongly with water, and in most cases the gas molecules or atoms occupy 'cages' formed by a framework of water molecules. The majority of these gas hydrates adopt one of two cubic cage structures and are called clathrate hydrates.
Loveday, J. S., Nelmes, R. J.
openaire   +5 more sources

Numerical Simulation of Hydrate Decomposition during the Drilling Process of the Hydrate Reservoir in the Northern South China Sea

open access: yesEnergies, 2022
The process of drilling in natural gas hydrate reservoirs in sea areas involves problems such as hydrate decomposition and wellbore instability. To study the response behaviors of a reservoir during the drilling process, a two-dimensional numerical model
Lei Zhang   +4 more
doaj   +1 more source

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