... upstream oil & gas methane hydrate freezing salinity asia government pipe flexible hose inner tube methane gas gas hydrate japan government flow assurance experiment riser pipe experimental apparatus hydrate seawater evaluation model dynamic condition yamamoto hydrate...

... Experimental Study and Modeling of Methane Hydrate Dissociation by Depressurization and Chemical Injection Tingji Ding, Ruihe Wang*, Jiafang Xu*, Xiaopu Wang, Zhenglian Yu, Yuanfang Cheng, Zhiyuan Wang School of Petroleum Engineering, China University of Petroleum (East China) Qingdao, Shandong...

... hydrate gas hydrate hydrate system molecule experimental study upstream oil & gas gas mixture experimental data carbon dioxide replacement component area concentration methane replacement process methane hydrate calculation concentration chromatogram flow assurance natural...

... saturation hydrate dissociation gas hydrate dissociation process reservoir propane gas experiment enhanced recovery concentration equilibrium temperature hydrate reservoir sakamoto acid injection hydrate dissociation process dissociation temperature methane hydrate gas production...

.... hydrate molecule wellhead extraction gas hydrate hanger subsea system jogmec methane hydrate reservoir production tree commercial exploitation upstream oil & gas hydrate production platform tree cap tree configuration gas hydrate production south china sea flow assurance...

... according to method based on IP143/90 (AlHumaidan et al., 2017) and characterized by FTIR, element analysis, SEM and MALDI-TOF MS. Thereafter, the effect of asphaltenes was studied on the phase stability of pure methane hydrate system at 1000 ppm and 10000 ppm concentration. It has been observed...

... Abstract Viscoelastic behaviors of gas-hydrate-bearing sediment are thought to be significant in the long-term prediction of the geomechanical response to gas extraction from the gas-hydrate reservoir. Two types of triaxial compression tests on artificial methane-hydrate-bearing sediment...

... Modeling of Methane Hydrate Inhibition in the Presence of Green Solvent for Offshore Oil and Gas Pipeline Venkata Ramana Avula1, Ramesh L Gardas2 Jitendra S Sangwai1,* 1Department of Ocean Engineering, IIT Madras. 2Department of Chemistry,IIT Madras. Chennai, Tamil Nadu, India. ABSTRACT...

... Status of Methane Hydrates Production R&D and Enhanced Recovery Technologies Takeshi Komai Graduate School of Environmental Studies, Tohoku University Aramaki, Aoba-ku, Sendai, Japan ABSTRACT Huge amount of methane hydrates worldwide exist at offshore and onshore areas, particularly in reservoirs...

... Loading-Rate Dependence of Triaxial Compressive Strength of Artificial Methane-Hydrate-Bearing Sediment Containing Fine Fraction Kuniyuki Miyazaki*, Norio Tenma*, Kazuo Aoki*, Yasuhide Sakamoto** and Tsutomu Yamaguchi * Methane Hydrate Research Center, National Institute of Advanced Industrial...

... ABSTRACT Natural gas hydrate is a crystalline compound consisting of water molecules and gas molecules that is expected to become a new energy resource. This study examined the permeability measurement and pore-size distribution of methane-hydrate sediment. A proton nuclear magnetic resonance...

... Experimental Investigation into the Applicability of Depressurization to Dissociate Methane Hydrate in an Unconsolidated Sedimentary Sample Taewoong Ahn a, Jaehyoung Lee a, Joo Yong Lee a, and Se Joon Kim a, and Changhyup Park b a Petroleum and Marine Resources Division, Korea Institute...

... Bulk Thermal Conductivity of Stable and Dissolved Methane Hydrate- Bearing Zones Simon Falser, Matilda Loh, Andrew Palmer, Thiam Soon Tan Centre for Offshore Research and Engineering, Department of Civil & Environmental Engineering, National University of Singapore, Singapore ABSTRACT...

... in deep-sea gas hydrate, which is capable of storing a tremendous amount of NGH. The clay interlayer provides a unique chemical-physical environment for gas hydrates. Here, for the first time, we pull out methane from intercalated methane hydrates in a clay interlayer using CO2 and a CO2+N2 gas mixture...

... emphasis has been laid on environmental aspects of accidental cargo release because of the large global warming potential of methane. KEY WORDS Methane hydrate, NGH, gas transport, risk analysis, risk model INTRODUCTION Methane hydrate is a solid clathrate hydrate in which methane is trapped within...

... Study on the Relative Permeability with Change of Methane Hydrate Saturation in Glass Beads Packs Yu Liu, Yongchen Song, Wei-haur Lam Key Lab of Ocean Energy Utilization and Energy Conservation of Ministry of Education Dalian, Liaoning, P.R. China Xichong Yu Research Center of China National...

... hydrate deep-sea sediment sequestration spectra carbon dioxide reactor sii gas hydrate molecule composition hydrate recovery flow assurance natural gas hydrate methane hydrate hydrate sample co 2 structure transition upstream oil & gas ch 4 sediment Recovery of CH4 from Natural...

... Methane hydrate is a promising energy resource in the near future. Its production is a current hot topic and flow of methane gas with water in sediment sand layer is very important to predict the production rate. In this study, permeability of microscale sand layer was numerically simulated...

... methane-hydrate-bearing sediment. The exploitation of methane hydrate (MH) and methods of producing methane gas from methane hydrate, such as (1) the depressurization method (Sakamoto 2007a, 2007b), (2) the thermal stimulation method (Sakamoto 2007a, 2007b), and (3) the inhibiter injection method...

... In this study, two methods of loading tests were carried out for sand mixed with synthetic methane hydrate under triaxial compressive stress; one is "constant strain-rate test" and the other is "alternating strain-rate test." On the basis of experimental results, we have explored the loading...