scholarly journals Three-dimensional seismic imaging of the Blake Ridge methane hydrate province: Evidence for large, concentrated zones of gas hydrate and morphologically driven advection

2008 ◽  
Vol 113 (B7) ◽  
Author(s):  
Matthew J. Hornbach ◽  
Demian M. Saffer ◽  
W. Steven Holbrook ◽  
Harm J. A. Van Avendonk ◽  
Andrew R. Gorman
Keyword(s):  
Gas Hydrate ◽  
Methane Hydrate ◽  
Seismic Imaging ◽  
Three Dimensional ◽  
Blake Ridge

Experimental Study of Gas Production From Methane Hydrate by Depressurization and Combination Method Under Different Hydrate Saturations

2012 ◽  
Author(s):  
Liguo Liu ◽  
Jiafei Zhao ◽  
Chuanxiao Cheng ◽  
Yongchen Song ◽  
Weiguo Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Production Rate ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Three Dimensional ◽  
Gas Production ◽  
Filling Pressure ◽  
Combination Method ◽  
Methane Hydrates ◽  
Experimental Systems

In this work, different saturated methane hydrates were formed by controlling the methane gas filling pressure on the three-dimensional experimental systems. The hydrates were dissociated using by depressurization and combination method, respectively. The results indicated that, as the saturation enhancing, the gas production was enlarged, however, the gas production rate became extremely volatile, and the decomposition cycle increased. Furthermore, compared with single depressurization, the combination method has the high gas production rate and efficiency, and the short decomposition cycle. So the combination method is worthy for further study of the gas hydrate exploitation.

SS - Gas Hydrate: Gas production from methane hydrate sediment layer by thermal stimulation with hot water injection

2010 ◽  
Author(s):  
Kyuro Sasaki ◽  
Shinzi Ono ◽  
Yuichi Sugai ◽  
Norio Tenma ◽  
Takao Ebinuma ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Methane Hydrate ◽  
Water Injection ◽  
Gas Production ◽  
Hot Water ◽  
Thermal Stimulation ◽  
Sediment Layer

Influence of a Combined Low Dosage Gas Hydrate Inhibitor on Methane Hydrate Surface

2014 ◽  
Vol 1008-1009 ◽  
pp. 300-306
Author(s):  
Cui Ping Tang ◽  
Dong Liang Li ◽  
De Qing Liang
Keyword(s):  
Molecular Dynamics ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Md Simulation ◽  
Side Group ◽  
Large Space ◽  
Surface Molecules ◽  
Low Dosage

According to analysis of the gas hydrate cage and structure of the inhibitor and simulation of molecular dynamics, the interaction between GHI1 and hydrates was discussed. The structure analysis indicated the side group of PVP can insert into the open hydrate cage, and force the hydrate growing along the polymer chain, which results in a large space resistance and inhibits gas hydrate agglomerating. The results of MD simulation show GHI1 can damage the surface cage in hydrate lattice; the hydrogen and oxygen in GHI1 can form hydrogen bonds respectively with oxygen and hydrogen in hydrates, which makes the surface molecules of the cages unstable and distorts the cages; Synergist diethylene glycol ether increases strength and range of length of hydrogen bond.

Coupled Heat and Mass Transfer CFD Model for Methane Hydrate

2015 ◽  
Author(s):  
Eugenio Turco Neto ◽  
M. A. Rahman ◽  
Syed Imtiaz ◽  
Thiago dos Santos Pereira ◽  
Fernanda Soares de Sousa
Keyword(s):  
Natural Gas ◽  
Multiphase Flow ◽  
Gas Hydrate ◽  
Gas Flow ◽  
Three Dimensional ◽  
Hydrate Formation ◽  
Cfd Model ◽  
Flow Metering ◽  
Ansys Cfx ◽  
Gas Hydrate Formation

The gas hydrates problem has been growing in offshore deep water condition where due to low temperature and high pressure hydrate formation becomes more favorable. Several studies have been done to predict the influence of gas hydrate formation in natural gas flow pipeline. However, the effects of multiphase hydrodynamic properties on hydrate formation are missing in these studies. The use of CFD to simulate gas hydrate formation can overcome this gap. In this study a computational fluid dynamics (CFD) model has been developed for mass, heat and momentum transfer for better understanding natural gas hydrate formation and its migration into the pipelines using ANSYS CFX-14. The problem considered in this study is a three-dimensional multiphase-flow model based on Simon Lo (2003) study, which considered the oil-dominant flow in a pipeline with hydrate formation around water droplets dispersed into the oil phase. The results obtained in this study will be useful in designing a multiphase flow metering and a pump to overcome the pressure drop caused by hydrate formation in multiphase petroleum production.

scholarly journals Three-dimensional seismic imaging of the Rye Patch geothermal reservoir

1999 ◽  
Author(s):  
M. Feighner ◽  
R. Gritto ◽  
T.M. Daley ◽  
H. Keers ◽  
E.L. Majer
Keyword(s):  
Seismic Imaging ◽  
Three Dimensional ◽  
Geothermal Reservoir

Late Holocene foraminifera of Blake Ridge diapir: Assemblage variation and stable-isotope record in gas-hydrate bearing sediments

2014 ◽  
Vol 353 ◽  
pp. 99-107 ◽  
Author(s):  
Giuliana Panieri ◽  
Paul Aharon ◽  
Barun K. Sen Gupta ◽  
Angelo Camerlenghi ◽  
Francesc Palmer Ferrer ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Gas Hydrate ◽  
Late Holocene ◽  
Blake Ridge ◽  
Isotope Record ◽  
Hydrate Bearing Sediments ◽  
Stable Isotope Record
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