Simulations of Brady's-Type Fault Undergoing CO2 Push-Pull: Pressure-Transient and Sensitivity Analysis Description_r2.docx

Input and output files used for fault characterization through numerical simulation using iTOUGH2. The synthetic data for the push period are generated by running a forward simulation (input parameters are provided in iTOUGH2 Brady GF6 Input Parameters.txt [InvExt6i.txt]). In general, the permeability of the fault gouge, damage zone, and matrix are assumed to be unknown. The input and output files are for the inversion scenario where only pressure transients are available at the monitoring well located 200 m above the injection well and only the fault gouge permeability is estimated. The input files are named InvExt6i, INPUT.tpl, FOFT.ins, CO2TAB, and the output files are InvExt6i.out, pest.fof, and pest.sav (names below are display names).

The table graphic in the data files below summarizes the inversion results, and indicates the fault gouge permeability can be estimated even if imperfect guesses are used for matrix and damage zone permeabilities, and permeability anisotropy is not taken into account. Description of the files and workflow related to the data files below.

Data and Resources

Metadata Source

Additional Info

Field Value
Citation Date 2018-03-09T00:00:00-07:00

Harvest Information

Original ID f0000000-58cc-4372-a567-000000001019
Index Date 2018-06-14T12:04:49-06:00
Original Format ISO-USGIN
Original Version 1.2


Name Curtis Oldenburg
Position primary contact
Organization Lawrence Berkeley National Laboratory

Geographic Extent

North Bound 39.9883
South Bound 39.5883
East Bound -118.8167
West Bound -119.2167