Faculty Members
KONNO Yoshihiro
(Associate Professor/Division of Environmental Studies)
Department of Ocean Technology, Policy, and Environment/Seabed resource development, Reservoir engineering
Career Summary
2003: Graduated from Faculty of Engineering (The University of Tokyo)
2008: Received Ph.D. in Engineering from The University of Tokyo
2009: Researcher (National Institute of Advanced Industrial Science and Technology (AIST))
2016: Senior Researcher (AIST)
2017: Associate Professor (The University of Tokyo)
Educational Activities
Graduate school: Ocean Development Systems, Design of Environmental Harmonizing Systems
Research Activities
Gas production technology for methane-hydrate-bearing sediments:
We investigate stable and efficient gas production methods for methane-hydrate-bearing sediments by numerical and experimental techniques.
Development system for oceanic methane hydrate:
We propose a development system for oceanic methane hydrate including drilling, production, and transportation by examining similarities and differences between conventional offshore oil&gas and methane hydrate.
Strategy for seabed resource development and utilization:
To facilitate seabed resource development and utilization, we are developing a strategy that clarifies the technical, political, and social challenges facing this endeavor.
Literature
1) Y. Konno, A. Kato, J. Yoneda, M. Oshima, M. Kida, Y. Jin, J. Nagao, and N. Tenma, Numerical analysis of gas production potential from a gas-hydrate reservoir at Site NGHP-02-16, the Krishna-Godavari Basin, offshore India-Feasibility of depressurization method for ultra-deepwater environment, Marine and Petroleum Geology, in press (2018).
2) Y. Konno, T. Fujii, A. Sato, K. Akamine, M. Naiki, Y. Masuda, K. Yamamoto, and J. Nagao, Key findings of the world?fs first offshore methane hydrate production test off the coast of Japan: Toward future commercial production, Energy & Fuels 31 (3), 2607-2616 (2017).
3) Y. Konno, J. Yoneda, K. Egawa, T. Ito, Y. Jin, M. Kida, K. Suzuki, T. Fujii, and J. Nagao, Permeability of sediment cores from methane hydrate deposit in the Eastern Nankai Trough, Marine and Petroleum Geology 66, 487-495 (2015).
4) Y. Konno, Y. Jin, K. Shinjou, and J. Nagao, Experimental evaluation of the gas recovery factor of methane hydrate in sandy sediment, RSC Advances 4 (93), 51666-51675 (2014).
5) Y. Konno, Y. Masuda, Y. Hariguchi, M. Kurihara, and H. Ouchi, Key factors for depressurization-induced gas production from oceanic methane hydrates, Energy & Fuels 24 (3), 1736-1744 (2010).
Other Activities
Japan Society for Naval Architecture and Ocean Engineering
Japanese Association for Petroleum Technology
The Mining and Materials Processing Institute of Japan
American Geophysical Union
International Ship and Offshore Structures Congress (ISSC), Specialist Committees: Subsea Technology
Future Plan
The commercialization of seabed resources and greater utilization of the deep sea, such as CO2 storage in the deep sea and subsea underground.
Messages to Students
The deep sea is the last frontier on our planet. Let's research sustainable development and utilization methods of deep sea resources and environments. Think outside the box!