hgprieto

Syntax >> REGULARIZATION (FILE: file_name) (BETA: beta) Parent Command > OBSERVATION > PARAMETER   Subcommand –   Description This command identifies pairs of parameters that are used to calculate a smoothness regularization term. Weighted differences between the two estimated values are added to the objective function. The pairs are identified by the ordering number in […]

Syntax >> REGRESSION Parent Command > PARAMETER Subcommand >>> NONE Description This command selects the autoregression coefficient rho as the parameter to be adjusted or estimated. To partially account for time correlations, a first-order autogregressive time series model (AR1) can be applied to the residuals: Autoregression is performed on the time-series residuals of a data

Syntax >> REGION (SINK/SOURCE, PERMEABILITY, OBSERVATION) Parent Command > PARAMETER   Subcommand >>> MATERIAL (if keyword PERMEABILITY) >>> MODEL (if keyword OBSERVATION) >>> SOURCE (if keyword SINK/SOURCE)   Description This command selects as a parameter the geometry (i.e., location, size, and shape) of a region, in which either material properties or a sink/source are provided,

Syntax >> RATE Parent Command > PARAMETER   Subcommand >>> SOURCE   Description This command selects as a parameter the constant generation rate (TOUGH2 variable GX) or time-dependent generation rate (TOUGH2 variable F2(L) for LTAB > 1). This parameter refers to a sink/source code name. Estimating a time-dependent generation rate requires providing index L through

Syntax >> PUMPING RATIO Parent Command > PARAMETER   Subcommand >>> SOURCE   Description This command selects as a parameter the pumping ratios of wells belonging to the same well group. This option can be used to determine the distribution of generation rates among a group of wells, e.g., to determine the optimum pumping strategy

Syntax >> PRODUCTIVITY INDEX Parent Command > PARAMETER   Subcommand >>> SOURCE   Description This command selects the productivity index for wells on deliverability (TOUGH2 variable GX) as a parameter to be estimated. This parameter refers to a sink/source code name. The generation type must be DELV. Example > PARAMETER >> PRODUCTIVITY INDEX >>> SINK:

Syntax >> POROSITY Parent Command > PARAMETER   Subcommand >>> MATERIAL   Description This command selects as a parameter porosity (TOUGH2 variable POR(NMAT)). This parameter refers to a rock type. Note that the porosity specified in TOUGH2 block ROCKS (variable POR(NMAT)) may be overwritten by non-zero values given in block INCON (variable PORX). However, porosity

Syntax >> PEST Parent Command > PARAMETER Subcommand >>> NONE Description This command signifies that a parameter related to a user-supplied model (i.e., not a TOUGH2 module) be selected. The parameter will be identified and updated using the template file of the PEST interface. An initial guess must be provided for all non-TOUGH2 parameters through

Syntax >> PARALLEL PLATE Parent Command > PARAMETER   Subcommand >>> MATERIAL   Description This command selects as a parameter the aperture of a parallel plate fracture model. The single fracture must be modeled as a 1D- or 2D model of thickness 1 meter, i.e., aperture must be identical to porosity. Furthermore, the capillary pressure

Syntax >> MINC Parent Command > PARAMETER   Subcommand >>> MODEL   Description This command selects as a parameter the fracture spacing which is a parameter of the MINC preprocessor (TOUGH2 variable PARMINC(I)). The fracture set is identified through command >>>> INDEX. This parameter refers to the entire model. Estimating fracture spacing is only possible