Results 21 to 30 of about 117,013 (244)

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

Scientific 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, Qiaobo Hu, Nengyou Wu, Hongbin Wang, Xiaofeng Sun, Gaowei Hu, Zhiwen Sun, Yujing Jiang   +7 more
doaj   +1 more source

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

Journal 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, Guangrong Jin, Dongliang Li, Deqing Liang, Yong He, Lingli Shi, Yiqun Zhang, Youming Xiong   +7 more
doaj   +1 more source

Widespread natural methane and oil leakage from sub-marine Arctic reservoirs

Nature Communications, 2023
Barents Sea shelf experienced >30 episodes of glaciation which scraped off layers of rocks and led to petroleum reservoirs exposed onto the seafloor. Today, such uncapped reservoirs produce strong fluxes of methane gas and oil into the ocean.
Pavel Serov, Rune Mattingsdal, Monica Winsborrow, Henry Patton, Karin Andreassen   +4 more
doaj   +1 more source

Characterization of Binary Hydrates Containing Methane by X-ray Diffraction and Microscopic Laser Raman Spectroscopy

Yankuang ceshi, 2021
BACKGROUND The crystal structure of natural gas hydrate mainly depends on the species and composition of guest molecules. At present, the structure and spectral characteristics of single-component hydrate are relatively clear, but the studies of multi ...
MENG Qing-guo, LIU Chang-ling, LI Cheng-feng, HAO Xi-luo   +3 more
doaj   +1 more source

Pore-Scale Investigation of the Electrical Property and Saturation Exponent of Archie’s Law in Hydrate-Bearing Sediments

Journal of Marine Science and Engineering, 2022
Characterizing the electrical property of hydrate-bearing sediments is essential for hydrate reservoir identification and saturation evaluation. As the major contributor to electrical conductivity, pore water is a key factor in characterizing the ...
Jinhuan Zhao, Changling Liu, Chengfeng Li, Yongchao Zhang, Qingtao Bu, Nengyou Wu, Yang Liu, Qiang Chen   +7 more
doaj   +1 more source

Large-Scale Experimental Investigation of Hydrate-Based Carbon Dioxide Sequestration

Energies
Hydrate-based CO2 sequestration is a novel approach that can not only realize permanent CO2 sequestration but can also form an artificial cap to prevent its upward migration.
Weixin Pang, Yang Ge, Mingqiang Chen, Xiaohan Zhang, Huiyun Wen, Qiang Fu, Xin Lei, Qingping Li, Shouwei Zhou   +8 more
doaj   +1 more source

Laboratory Study on Hydrate Production Using a Slow, Multistage Depressurization Strategy

Geofluids, 2021
Optimization of the depressurization pathways plays a crucial role in avoiding potential geohazards while increasing hydrate production efficiency. In this study, methane hydrate was formed in a flexible plastic vessel and then gas production processes ...
Yanlong Li, Chuqiao He, Nengyou Wu, Qiang Chen, Changling Liu, Zhixue Sun, Yurong Jin, Qingguo Meng   +7 more
doaj   +1 more source

Experimental Investigation into the Combustion Characteristics of Propane Hydrates in Porous Media

Energies, 2015
The combustion characteristics of both pure propane hydrates and the mixtures of hydrates and quartz sands were investigated by combustion experiments. The flame propagation, flame appearance, burning time and temperature in different hydrate layers were
Xiang-Ru Chen, Xiao-Sen Li, Zhao-Yang Chen, Yu Zhang, Ke-Feng Yan, Qiu-Nan Lv   +5 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source