九州大学 エネルギー基盤技術国際教育研究センター

Visitor Division – Ryuichi ITOI –

Visitor Division

Professor

Ryuichi ITOI

Specialization

Geothermal Reservoir Engineering, Geothermal Production Engineering

Affiliation

Faculty of Engineering

Research Topics

  • Geothermal reservoir modelling and numerical simulation
  • Wellbore flow modeling
  • Tracer test analysis
  • Silica scaling in porous media

Research Outline

Optimum and sustainable development schemes have been developed using a numerical model of high temperature geothermal reservoir. For this purpose, tracer test analysis method for a multiple flow path model was developed and applied for various field for evaluating hydrogeologic properties of reservoir. A vertical two dimensional porous model was also developed for examining tracer movement in the porous media. Productivity of geothermal well was evaluated using a steam-water two-phase wellbore model.

Three dimensional grid model of high temperature geothermal reservoir

Three dimensional grid model of high temperature geothermal reservoir

Develop a numerical model of high temperature geothermal reservoir, which is used for natural state and history matching simulations for optimum and sustainable development of the reservoir.

Laboratory experiment of tracer test using a vertical two dimensional porous media

Laboratory experiment of tracer test using a vertical two dimensional porous media

Experimental apparatus for simulating fluid flow between reinjection and production wells in geothermal reservoir was developed for examining the effects of distances between wells, heterogeneity of permeability of porous media.

Numerical model of steam-water two-phase wellbore flow

Numerical model of steam-water two-phase wellbore flow

Evaluation of geothermal well productivity using wellbore model