Three-Dimensional Characterization and Modeling of Permeability in a Field-Scale Control Volume
Abstract
CY2OO2 was the final year of this 6-yr project during which the Boise Hydrogeophysical Research Site (BHRS) was established as a field-scale test facility to support development of methods for using indirect (abundant, minimally-invasive, inexpensive) geophysical information to supplement direct (sparse, invasive, expensive) hydrogeologic information. The BHRS consists of 18 wells emplaced in 2O-m-thick coarse fluvial deposits that may be divided into five stratigraphic units with layered and patchy heterogeneity at three scales. Wells are located and constructed to support a wide-variety of hydrologic and geophysical tests. State-of-the practice and new methods and instrumentation have been used to determine the three-dimensional distribution of geologic, hydrologic and geophysical parameters, including: core analysis; borehole geophysical logging; single-well permeability, seismic, and radar profiling; crosswell seismic and radar tomography; multiwell hydraulic tomography; dense grids of transient electromagnetic soundings and radar reflection profiles; and a tracer/time-lapse radar imaging test. Additional results of note include: development of a general form of the variogram function to quantify multiscale, multifacies spatial structure; demonstration of Voigt-solid model for seismic SH-wave behavior to yield damping in addition to stiffness parameters; development of hydraulic tomography method for 3D permeability distribution; applying and developing new theory to model time-lapse attenuation differences for radar tomographic imaging of a tracer test (analogous to high TDS contaminant plume). Additional findings and developments are given in the report.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 19, 2003
- Accession Number
- ADA411602
Entities
People
- Warren Barrash
Organizations
- Boise State University