Hydropulse Tomography for Identifying 3-D Permeability Distributionby Hiroyuki Tosaka, Univ of Tokyo, Tokyo, Japan,
Kiyoshi Masumoto, Univ of Tokyo, Tokyo, Japan,
Keiji Kojima, Univ of Tokyo, Tokyo, Japan,
Abstract: For the purpose of identifying subsurface permeability distribution, a geotomographic method named Hydropulse Tomography (HT) was developed. As observation data, HT uses hydraulic pressure responses received at multiple points in a highly transient, multi-well interference testing. Reconstruction of permeability distribution is done by the numerical inversion program which was developed by us to treat nonlinear minimization process of a large and time-dependent system. Case studies for validation of inversion program were successfully conducted by using numerically simulated pressure data for 2-D and 3-D fracture problems.
Subject Headings: Numerical methods | Radiography | Hydraulic pressure | Transient response | Case studies | Numerical analysis | Numerical models | Subsurface environment
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