... pump efficiency production control japan mh formation flow condition hydrate differential pressure pipe reservoir surveillance flow rate test section Electric-Submersible-Pump Performance under Methane/Water/Methane-Hydrate Pipe Flows Tsutomu Shimizu, Yoshitaka Yamamoto, Norio Tenma...

... Abstract Development of deep ocean hydrothermal poly-metallic ore mining is a highly anticipated industry in Japan to increase self-sufficiency of metals and bring economic benefits, however there are many issues still to be clarified, including waste disposal and its economic feasibility...

... the geotechnical parameters necessary for deep seafloor stability analysis. triaxial compression test geotechnical property eastern nankai trough offshore japan strength laboratory test marine clay upstream oil & gas core sample reservoir characterization compression index coefficient nankai...

... ABSTRACT Seafloor massive sulfides (SMS) which contain Au, Ag, Cu, Zn, and Pb have been interested in as a target of commercial mining these 15 years. Japan has large potential of SMS and a national R&D project for the mining has been active these 5 years. However, the economy of SMS...

... plan for development of seafloor resources including SMS in the Exclusive Economic Zone (EEZ) of Japan, the environmental impact assessment of SMS mining is one of key issues as well as assessment of resource amount and technical development. To analyze the influence of increase in DO by discharging...

... fields in offshore of island countries in the western Pacific such as Papua New Guinea, New Zealand and Japan. risk and uncertainty assessment risk assessment diffusion model risk management sms mining metals & mining japan organism direct disturbance waste water assessment...

... ABSTRACT: Kuroko-type seafloor massive sulfides including gold, silver, copper, zinc, and lead exist in the EEZs of the Pacific island countries. The ones in Japan's EEZ are expected to be the largest and very much attractive for the future resources. However, there are many problems...

... University, Tainan, TAIWAN, China ABSTRACT Deep ocean water (DOW) is commonly referred to the water below 200 meters in the ocean that is typically cold, clean, stable, and rich in nutrients and minerals. Japan and the United States have been exploiting the DOW for applications in water, pharmaceutical...

...Economic Validation Analyses of Japan's Nodule, Crust, and Kuroko-type SMS Mining in 2004 T. Yamazaki Natl. Inst. of Advanced Industrial Science and Technology Tsukuba, Japan S.-H. Park Korea Ocean Resources and Development Inst. Ansan, Korea ABSTRACT Metal market prices drastically changed from...

...Measured Results of Oceanographic Observation by using TAKUMI About Wave Condition Katsuya Maeda, Yutaka Ohkawa And Kenkichi Tamura Ocean & Ice Engineering Department, National Maritime Research Institute Mitaka, Tokyo, Japan ABSTRACT Ocean Nutrient Enhancer TAKUMI is a SPAR type floating...

... ABSTRACT: The natural gas resource from methane hydrate offshore Japan is estimated to be 74 trillion cubic meters. To develop it, the Advisory Committee for the Natural Methane Hydrate Exploitation Program was organized in 2000, and documented the report "Japan's Methane Hydrate Exploitation...

... ABSTRACT: This paper presents a brief review of recent researches on deep ocean water applications in Japan. Firstly, various applications using deep ocean water, such as ocean thermal energy conversion, fresh water production, air conditioning/refrigeration, mariculture, agriculture...

... ABSTRACT: From 1989 to 1996, Metal Mining Agency of Japan (MMAJ) performed studies on the recovery of iron, manganese copper and nickel from manganese nodules under the commission of the Ministry of International Trade and Industry. After investigating existing processes and comparing...

... ABSTRACT: The Japan Deep Sea Impact Experiment (JET) created a near Seafloor sediment plume in an attempt to reproduce conditions during manganese nodule mining in the Clarion-Clipperton zones in 1994. An image analysis technique of seafloor photos is developed for quantification...

...Proceedings of the ISOPE - Ocean Mining Symposium (1995) Tsukuba, Japan, November 21-22, 1995 Copyright © 1995 by The International Society ofOffs/lOre and Polar Engineers ISBN 1-880653-21-4 NlRE's Research in Ocean Mining M. Kuriyagawa National Institute for Resources and Environment Tsukuba,Japan...

...Proceedillgs of the ISOPE - Ocean Minillg Symposium (1995) Tsukuba, Japall, November 21-22,1995 Copyright © 1995 by The Illtematiollal Society ofOffshore alld Polar Engineers ISBN 1-880653-21-4 Current Status of Deep-sea Mineral Resources Development in Japan A.lnokuma Agency of Industrial Science...