Abstract
Abstract. The application of a technique from quantum dynamics to the governing equation for hydraulic head
leads to a trajectory-based solution that is valid for a general porous medium.
The semi-analytic expressions for propagation path and velocity of a change in hydraulic head
form the basis of a travel-time tomographic imaging algorithm.
An application of the imaging algorithm to synthetic arrival times reveals that a cross-well inversion
based upon the extended trajectories correctly reproduces the magnitude of a reference model,
improving upon an existing asymptotic approach.
An inversion of hydraulic head arrival times from cross-well slug tests at the Widen field site in northern
Switzerland captures a general decrease in permeability with depth, which is in agreement with previous studies,
but also indicates the presence of a high-permeability feature in the upper portion of
the cross-well plane.
Subject
General Earth and Planetary Sciences,General Engineering,General Environmental Science
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