Status report: numerical modeling of ground-water flow in the Paleozoic formations, western Paradox Basin, Utah

Technical Report · Tue Oct 01 04:00:00 EDT 1985

OSTI ID:6410930

Dunbar, D B; Thackston, J W

A three-dimensional finite-difference numerical model was applied to simulate the ground-water flow pattern in Paleozoic strata within the western Paradox Basin region. The primary purpose of the modeling was to test the present conceptual hydrogeologic model and evaluate data deficiencies. All available data on ground-water hydrology, although sparse in this area, were utilized as input to the model. Permeability and potentiometric levels were estimated from petroleum company drill-stem tests and water-supply wells; formation thicknesses were obtained from geologic correlation of borehole geophysical logs. Hydrogeologic judgment weighed heavily in the assignment of hydrologic values to geologic features for this preliminary modeling study. Calibration of the model was accomplished through trial-and-error matching of simulated potentiometric contours with available head data. Hypothetical flow patterns, flux rates, recharge amounts, and surface discharge amounts were produced by the model. 34 refs., 17 figs., 3 tabs.

• Research Organization: Woodward-Clyde Consultants, San Francisco, CA (USA)
• DOE Contract Number: AC02-83CH10140
• OSTI ID: 6410930
• Report Number(s): BMI/ONWI-571; ON: DE86004468
• Country of Publication: United States
• Language: English

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BOREHOLES
CAVITIES
FINITE DIFFERENCE METHOD
FLOW MODELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GROUND WATER
HYDROGEN COMPOUNDS
HYDROLOGY
ITERATIVE METHODS
MANAGEMENT
MATHEMATICAL MODELS
NUMERICAL SOLUTION
OXYGEN COMPOUNDS
PALEOZOIC ERA
PARADOX BASIN
PERMEABILITY
POTENTIOMETRY
RADIOACTIVE WASTE DISPOSAL
SALT DEPOSITS
SITE SELECTION
THREE-DIMENSIONAL CALCULATIONS
TITRATION
WASTE DISPOSAL
WASTE MANAGEMENT
WATER
WELL LOGGING