大岳地熱地域における還元熱水の挙動

抄録

Pressures, flow rates and tracer arrival times were measured at injection and production wells in the Otake geothermal field. The obtained data were analysed in order to estimate the pressure and transmissibility distribution in the geothermal reservoir.
Substitution of the above mentioned information into the equation of motion of the fluid flow through porous media led to an equation with the transmissibilities and two components of fluid flow as unknown.
The flow and transmissibility patterns in the Otake geothermal field could be estimated by solving numerically this equation, using calculus of finite difference, with suitable boundary conditions.