Results 31 to 40 of about 2,148 (218)

The Interaction of Talc, Montmorillonite, and Silica Sand with H₂O Influences Methane Hydrate Formation

Energies, 2023
Methane hydrates in natural geological settings are commonly distributed within sediments, with a variety of minerals (such as silica sand, talc, and montmorillonite).
Ruifang Huang, Yusheng Zhao, Yiming Ma
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Increased methane emissions from deep osmotic and buoyant convection beneath submarine seeps as climate warms

Nature Communications, 2016
Large methane hydrates reserves are found in mud volcanoes, but climate change may lead to methane release. Here, the authors show that methane adsorption creates overpressures leading to rapid recirculation of seawater, thus reducing the melting ...
Silvana S. S. Cardoso, Julyan H. E. Cartwright   +1 more
doaj   +1 more source

Role of Salt Migration in Destabilization of Intra Permafrost Hydrates in the Arctic Shelf: Experimental Modeling

Geosciences, 2019
Destabilization of intrapermafrost gas hydrate is one possible reason for methane emission on the Arctic shelf. The formation of these intrapermafrost gas hydrates could occur almost simultaneously with the permafrost sediments due to the occurrence of a
Evgeny Chuvilin, Valentina Ekimova, Boris Bukhanov, Sergey Grebenkin, Natalia Shakhova, Igor Semiletov   +5 more
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Sensitivity and Resolution of Controlled-Source Electromagnetic Method for Gas Hydrate Stable Zone

Energies, 2021
Natural gas hydrate is one of the most important clean energies and part of carbon cycle, due to the least carbon content. Natural gas hydrates depend on high pressure and low temperatures, located under seabed or permafrost. Small changes in temperature
Zhenwei Guo, Yunxi Yuan, Mengyuan Jiang, Jianxin Liu, Xianying Wang, Bochen Wang   +5 more
doaj   +1 more source

Adaptive modeling of methane hydrates

Procedia Computer Science, 2010
AbstractWe consider a computational model for the evolution of methane hydrates in subsurface. Methane hydrates, an ice-like compound abundant in subsea sediments and unstable in standard conditions, are an environmental hazard and simultaneously an energy source. Our multiphysics model includes multiphase multicomponent mass conservation equations and
Malgorzata Peszynska, Marta Torres, Anne Trèhu   +2 more
openaire   +1 more source

Extremely High Methane Concentration in Bottom Water and Cored Sediments from Offshore Southwestern Taiwan

Terrestrial, Atmospheric and Oceanic Sciences, 2006
It has been found that Bottom Simulating Reflections (BSRs), which infer the existence of potential gas hydrates underneath seafloor sediments, are widely distributed in offshore southwestern Taiwan.
Pei-Chuan Chuang, Tsanyao Frank Yang, Saulwood Lin, Hsiao-Fen Lee, Tefang F. Lan, Wei-Li Hong, Char-Shine Liu, Ju-Chin Chen, Yunshuen Wang   +8 more
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Sensitivity Analysis of Parameters Governing the Recovery of Methane from Natural Gas Hydrate Reservoirs

Energies, 2014
Naturally occurring gas hydrates are regarded as an important future source of energy and considerable efforts are currently being invested to develop methods for an economically viable recovery of this resource.
Carlos Giraldo, Jens Klump, Matthew Clarke, Judith M. Schicks   +3 more
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Methane Seepage Caused by Gas Hydrate Dissociation in the Mid‐Okinawa Trough Since the Last Glacial Maximum

Geophysical Research Letters, 2023
Submarine methane seepage can potentially be promoted by the dissociation of the marine hydrates surrounding the continental margins due to oceanic warming since the Last Glacial Maximum. This seepage could be archived by authigenic carbonates at seeping
Ang Li, Nengyou Wu, Qing Li, Zhou Wang, Yizhao Wan, Feng Cai, Zhilei Sun, Dong Feng   +7 more
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Influence of temperature on methane hydrate formation [PDF]

Scientific Reports, 2017
AbstractDuring gas hydrate formation process, a phase transition of liquid water exists naturally, implying that temperature has an important influence on hydrate formation. In this study, methane hydrate was formed within the same media. The experimental system was kept at 1.45, 6.49, and 12.91 °C respectively, and then different pressurization modes ...
Peng Zhang, Qingbai Wu, Cuicui Mu
openaire   +3 more sources

Os hidratos de metano: fonte energética do futuro ou fonte de risco ambiental? [PDF]

Finisterra - Revista Portuguesa de Geografia, 2007
METHANE HYDRATES: ENERGY RESOURCE OR SOURCE OF ENVIRONMENTAL HAZARD? Methane hydrates are a very interesting source of energy. Worldwide estimated resources of methane hydrates in oceans in 2001 are twice the amount of carbon contained in all fossil ...
Denise de Brum Ferreira
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