... Abstract For gas production from methane hydrate reservoir, depressurization method has been considered as a promising gas production technique. However, considering of continuous gas production over a long period, there is still something to clarify. When the intergranular methane hydrates...

... Adiabatic Conversion Method for the Development of Marine Hydrate Deposits Alexsandr N. Gulkov, Victor D. Lapshin, Vacheslav V. Slesarenko, Alexey A. Morozov, Sergey F. Solomennik, Far Eastern Federal University, Department of Oil and Gas deal and Petrochemistry Vladivostok, Russia ABSTRACT...

...P-wave Velocity Monitoring during the Dissociation of Methane Hydrate Bearing Sand by using Giant Pressure Cell Tatsuya Yokoyama, Makoto hoshino, Eiki Nakayama, Masaki Ono and Hideki Saito OYO Corporation Saitama, Saitama, Japan ABSTRACT As the final goal of visualization of the dissociation front...

...Depressurization and Electrical Heating of Hydrate Sediment for Gas Production Hideki Minagawa, Takuma Ito, Sho Kimura, Hiroaki Kaneko, Shohei Noda and Hideo Narita Methane Hydrate Research Center, National Institute of Advanced Industrial Science and Technology (AIST) Sapporo, Japan ABSTRACT...

...Numerical Simulation of Gas Hydrate Bearing Sediments for Enhanced Recovery Using Partial Oxidation Method Takeshi Komai1, Yasuhide Sakamoto2, Atsushi Kishita1 and Noriaki Watanabe1 1: Graduate School of Environmental Studies, Tohoku University Aoba, Sendai, Japan 2: National Institute of Advanced...

... Abstract Pump performance of a submersible centrifugal type is investigated experimentally using a multiphase vertical flow loop. Methane in water is tested under turbulent bubbly pipe flows. Some tests are conducted at a three-phase equilibrium point of methane-water-methane hydrate. The pump...

... Abstract Gas hydrate was successfully sampled again in DK-9 hole in Qilian Mountain permafrost. However gas hydrate occurrences are heterogeneous both in horizon and in section within a limited area. What geological constraint affects gas hydrate occurrences is not known yet. Since features...

... Experimental Investigation on Controlling the Depressurization-Induced Production Behavior from Hydrate-Bearing Sediments in 10-Meter-Scale Taewoong Ahn a, Jaehyoung Lee a, Joo Yong Lee a, and Se Joon Kim a a Petroleum and Marine Resources Division, Korea Institute of Geoscience and Mineral...

... Spectroscopic Explanation of Metastablity in Gas Hydrate Formation Dongwook Lim1, Woongchul Shin1, Seongmin Park1, Hyeyoon Ro1, Dong-Yeun Koh1, Jiwoong Seol1, Se-Joon Kim2, Jaehyoung Lee2, and Huen Lee1 1Department of Chemical and Biomolecular Engineering and the Graduate School of EEWS (WCU...

... ABSTRACT This experimental study evaluated the performance of sand control screens used to inhibit the production of sand accompanying hydrate dissociation by applying depressurization. Experimental apparatus was developed that visualizes the phenomenon of the production of sand and fine...

... ABSTRACT The physical samples of natural gas hydrate were obtained first by drilling in permafrost region of Qilian Mountain of China in 2008. Permafrost area in Qilian Mt. is located in lower latitudes at high altitude, and the samples form in the Jurassic stratum under hard rock environment...

... ABSTRACT Due to existence environment and special behavior of gas hydrate, the pressure sampler is the most important equipment to get the real physical and chemical properties of marine gas hydrate. Through the research on pressure sampler for many years, three kinds of gas hydrate samplers...

...Origin of Gases from Gas Hydrate in the Qilian Mountain Permafrost, Qinghai: Comparison of Gas Composition and Carbon Isotopes Zhengquan Lu Oil & Gas Survey, China Geological Survey Beijing, China and Institute of Mineral Resources, Chinese Academy of Geological Sciences Beijing, China Xiaohua Xue...

... of gas hydrates is seen as a two-step process of (1) a fast interfacial reaction (2) followed by much slower diffusion-limited transport. particle neutron diffraction molecule clathrate hydrate transformation upstream oil & gas kuh natural gas hydrate flow assurance sediment ch 4...

... ABSTRACT Methane gas hydrate reservoirs have been recognized in a permafrost area and under a deep sea floor, in which the temperatures and pressures were in the equilibrium condition of methane gas hydrate. Methane gas hydrate distributed off the shores of Japan is valuable natural gas...

... An Experimental Study of Natural Gas Hydrate in Permafrost by the Electromagnetic Method Meixing He1, Hui Fang1, Qing Zhong1, Yao Zhang2, Yongzhen Yuan1, Genggeng Qiu1, Yixin Ye3 1Institute of Geophysical and Geochemical Exploration, CAGS, Langfang, Hebei, China 2Guangzhou Marine Geological Survey...

... ethanol 40 vapor pressure heating cycle conversion efficiency flow assurance methane hydrate ethanol reactor hydrate methane hydrate po-chun chen 1 pressurization stage mpa gas hydrate vapor methanol aqueous solution experiment upstream oil & gas alcohol vapor Using...

... ABSTRACT Abnormal methane population in natural gas hydrates (NGHs) recovered from natural deep sea sediment has been demonstrated. Highly increased CH 4 occupancy ratios of large to small cages were observed in the sediment rich component of NGH, indicating that various minerals and mobile...

... ABSTRACT Methane-dominated gas hydrates deposits are considered as a potential hydrocarbon resource and storage medium for anthropogenic CO 2 by gas replacement. We establish Raman spectroscopy as a quantitative tool to determine the composition of mixed gas hydrates. Using our empirical...

... Axial Symmetrical Thermal Conduction and Phase Transformations in THF Hydrate-Bearing Sediments Xu Hui Zhang Xiao Bing Lu Key Laboratory of Fluid-Solid Coupling System Mechanics, Institute of mechanics, Chinese Academy of Sciences, Beijing, China Shi Yao Hong Xia Zhen Marine Environmental...