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This volume describes processes used in and results from laboratory measurements and analyses of core samples taken from methane hydrate-bearing sediments in a methane hydrate concentrated zone in the eastern Nankai Trough. The core analysis program was conducted under a Japan-US collaboration. Several pressure-preserved core samples were recovered as part of the research program that supported the world's first gas production trial from a marine gas-hydrate deposit in the area. To maintain physical properties of the core samples under in situ conditions and not allow the dissociation of the gas hydrates, preservation of the samples under pressure and temperature was necessary during sampling and analyses. To attain this goal, several new techniques were developed and employed for both core sampling and analysis operations. Multidisciplinary measurements for geological, geochemical, petrophysical, and mechanical data were performed on both pressure-preserved and conventional samples. The resulting data allow us to derive integrated and quantitative information about the nature of methane-hydrate-bearing sediments. This data and information are being used for reservoir characterization at the production test site and to improve our understanding of the behavior of methane-hydrate reservoirs during and after gas production. © 2015 The Author. Source


Motomura M.,Japan Oil, Gas and Metals National Corporation
Energy Policy | Year: 2014

This article examines the choices of Japan's governmental institutions vis-à-vis Russian supplies of oil and gas. First, there is a perceived need to diversify the sources of crude oil in order to avoid too much reliance on the Middle East. Following the inauguration of the Sakhalin oil projects and completion of the ESPO pipeline, Russian crude oil is nearing a 10% share in the Japanese market. It is suggested that Russian crude oil supplies have been chosen due to their proximity, safety andflexibility, and their positive effect on Japan's bargaining power in relation to crude suppliers in the Middle East. Second, Japan's shift from nuclear to LNG in power generation after the Fukushima accident in March 2011 increased LNG imports by 25% in just two years. While Qatar expanded its market share the most, Russia also gained, even though it only had one operational LNG project in Sakhalin-2. Russian companies are now working on several LNG projects in Northeast Asia and the Arctic region. However, the resumption of nuclear power in Japan might have a negative impact on new Russian LNG projects. © 2014 Elsevier Ltd. Source


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel & Sumikin Engineering Co. | Date: 2015-02-23

The present invention provides a process for producing a hydrocarbon oil by performing a Fischer-Tropsch synthesis reaction using a reactor for a Fischer-Tropsch synthesis including a reaction apparatus having a slurry containing catalyst particles and a gaseous phase located above the slurry to obtain a hydrocarbon oil, wherein the Fischer-Tropsch reaction is performed while controlling a temperature of the slurry so that a difference T


Patent
Japan Oil, Gas, Metals National Corporation, INPEX Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Cosmo Oil Co. and Nippon Steel & Sumikin Engineering Co. | Date: 2015-02-06

There is provided a method for upgrading hydrocarbon compounds, in which hydrocarbon compounds synthesized in a Fisher-Tropsch synthesis reaction are fractionally distillated, and the fractionally distillated hydrocarbon compounds are hydrotreated to produce liquid fuel products. The method includes fractionally distilling heavy hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a liquid into a first middle distillate and a wax fraction, and fractionally distilling light hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a gas into a second middle distillate and a light gas fraction.


Patent
Japan Oil, Gas and Metals National Corporation | Date: 2015-12-22

To cool a SQUID to a stable operational temperature for a long period of time under high pressure that exceeds 1.0 MPa, a highly pressure-resistant cooling container for a sensor includes a pressure-resistant airtight container having a pressure-resistance performance of 1.0 MPa or higher, a phase transition coolant insulating container contained within the pressure-resistant airtight container, and a tube for releasing a phase transition coolant having a pressure-resistance performance of 1.0 MPa or higher and connected to the pressure-resistant airtight container.

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