Modeling-Computer Simulations At Coso Geothermal Area (2000)

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Exploration Activity: Modeling-Computer Simulations At Coso Geothermal Area (2000)

Exploration Activity Details
Location Coso Geothermal Area
Exploration Technique Modeling-Computer Simulations
Activity Date 2000

Usefulness not indicated
DOE-funding Unknown

Exploration Basis
Model ground subsidence using observations of satellite radar interferometry
The InSAR displacement data was inverted for the positions, geometry, and relative strengths of the deformation sources at depth using a nonlinear least squares minimization algorithm. Elastic solutions were used for a prolate uniformly pressurized spheroidal cavity in a semi-infinite body as basis functions for our inversions. Source depths inferred from our simulations range from 1 to 3 km, which corresponds to the production depths of the Coso geothermal plant. Underpressures in the geothermal reservoir inferred from the inversion are of the order of 0.1-1 MPa (except a few abnormally high underpressures that are apparently biased toward the small source dimensions).

Additional References