... Abstract Two major concerns in offshore production are Methane Hydrates and Paraffin Plugs. They may stop wells for months, causing high financial losses. Sometimes, depressurization techniques allow hydrate removal. Another strategy is using coiled tubing or a similar unit to perform local...

... Abstract Methane hydrates (MHs) have been considered as the future clean energy resource because of the vast resource volume and the capability to store methane effectively. To synthesize MH-bearing samples in laboratory for analysis of the thermophysical/geomechanical properties...

... assurance collett saturation fault angle boswell methane hydrate upstream oil & gas gas hydrate numerical simulation Boothroyd , I. M. , Almond , S. , Worrall , F. , and Davies , R. J. ( 2017 ). Assessing the fugitive emission of CH 4 via migration along fault zones...

... Abstract Methane hydrates have long been discussed as the next cradle of energy. Considered a resource of near infinite reserve potential, methane hydrates could supplant conventional hydrocarbon-based energy for the foreseeable future. In recent years there has been considerable activity...

... programs , Fire in the Ice, National Energy Technology Laboratory Methane Hydrate Newsletter , 12 ( 2 ), pp 7 – 9 . Sapporo Scientific Team , pressure Core analysistools used to Characterize hydrate-bearing sediments from the Nankai trough , Fire in the Ice, National Energy Technology Laboratory...

... Abstract The world's first offshore gas production test from methane hydrate deposits was conducted in March 2013, at the test site located on the margin of Daini Atsumi Knoll, off the coasts of Atsumi and Shima peninsulas, in the easten Nankai Trough, of Japan. Approximately 120, 000 cubic...

... to methane hydrate equilibrium temperature depressions of about 1–3 degrees C at Site C0011, 2–5 degrees C at Site C0012, and 1-5 degrees C at Site C0018. Methane solubility was determined to increase by 10–30 percent at Sites C0011 and C0012, while solubility increases at Site C0018 were predicted...

... Abstract The world's first subsea methane hydrate completion system was installed and its production test successfully executed in the eastern Nankai Trough area off the east coast of central Japan in March 2013. A variety of methane hydrate production methods exist and have been recognized...

... Abstract The world's first subsea gravel packing for methane hydrate was conducted and production test successfully executed in the eastern Nankai Trough area off the coast of central Japan in March 2013. Methane hydrate formations all over the world promise huge energy reserves on the earth...

... and the continued increase in demand for energy will define if and when these resources will be exploited on a large scale. screening exploration ghsz hydrate accumulation methane hydrate hydrate resource conventional petroleum system approach offshore basin upstream oil & gas global screening...

... Abstract In March 2013, the world's first field trial of gas production from marine methane hydrate deposits was conducted in the Daini Atsumi Knoll area of the Eastern Nankai Trough off the Pacific coast of Japan as a process to bring gas hydrates under seafloor to valuable energy resource...

... Abstract CO2 has been focused for improving recovery factor of methane hydrate. The most of the principle is replacing guest molecular. It is also known that CO2 hydrate formation generates a large amount of exothermic heat. This heat can warm sediments up to 10 degrees Celsius as one...

.... INTRODUCTION Methane hydrates in sediment are expected to be developed as a resource for natural gas and have been studied as a possible future energy resource. In-situ dissociation of natural gas hydrate is necessary in order to commercially recover natural gas from the natural gashydrate-bearing sediment...

... Abstract A gas production system from methane hydrate layer by hot water injection using a pair of dual-horizontal wells has been proposed. Experiments with physical and numerical reservoir models have been carried out in order to simulate gas production characteristics with the system...

... Abstract In order to clarify physical properties of methane hydrate-bearing sediments, seismic wave velocities and electric resistivities of natural and artificial samples were measured in relation to methane hydrate saturation. First, a laboratory experiment system was developed so that P...

... Abstract In April, 2009 the Japan's Methane Hydrate R&D Program moved on to Phase 2 in order to establish the technology platform for commercial gas production from offshore-Japan methane hydrates, and we are planning the world's first offshore methanehydrate gas production test in FY 2012...

... Abstract Methane hydrate is a promising energy resource in the near future. One of the processes of its development in the sub-seabed sediments is depressurisation: pumping-up water through a well depressurises down to the extent lower than the equilibrium, and hydrate dissociates. However...

... Abstract This work summarizes a two-year study by the U.S. Federal Methane Hydrate Advisory Committee recommending the future needs for federally-supported hydrate research. The Report was submitted to the US Congress on August 14, 2007 and includes four recommendations regarding...

... Abstract Aiming commercialization of methane hydrate development, the Research Consortium for Methane Hydrate Resources in Japan (MH21) has been executing geological and geophysical surveys around the eastern Nankai Trough since 2001 as a national project. Interpretation and analysis studies...

... Abstract In this study, proton nuclear magnetic resonance (NMR) measurement combined with a permeability measurement system was performed to characterize methane-hydrate-bearing sediment based on pore-size distribution and permeability. Pore-size distribution of sediment measured by NMR...