Boundary_opt_parameters
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Data Structure: Boundary_opt_parameters |
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Boundary optimisation parameters |
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Boundary_opt_parameters NUM=ival where ival is the data structure number |
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Overview The Boundary_opt_parameters data structure can be used to define parameterised boundary displacements for the lateral faces of the model. This feature is used in the optimisation workflow, along with ParaGeoInv, where optimal boundary displacements are computed to generate a target stress state at various (e.g. well) locations on the domain.
Notes •Several Boundary_opt_parameters data structures may be defined.
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 | Name Name of boundary optimisation set |
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Name of boundary optimisation set (Maximum Characters 32).
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| Geometry_set Name of geometry set |
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Name of associated geometry set (Maximum Characters 32).
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| Type Free/Prescribed flag for boundary parameter |
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Type defines the flag for specifying if the boundary parameter defined in Name is free or prescribed. Valid options are: •0 - Free (to be evaluated during the inversion with values set within the input range defined via Minimum_value and Maximum_value keywords) •1 - Prescribed (fixed value using the Value keyword)
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| Value Value of prescribed parameter |
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Value definition is compulsory and it defines the value of the prescribed boundary parameter (i.e. those assigned Type = 1). If Type = 0 (free), the Value keyword must still be defined but the value is not used and can be set as any arbitrary value.
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| Minimum_value Minimum value of 'free' parameter |
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Mimumum_value defines the minimum value allowed for the 'free' parameter (i.e. defined with Type = 0) in the models generated during the inversion analysis. Mimumum_value keyword must always be defined and if the parameter is defined as 'prescribed' via Type = 1, the value input for the prescribed parameter is ignored.
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| Maximum_value Maximum value of 'free' parameter |
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Maximum_value defines the maximum value allowed for the 'free' parameter (i.e. defined with Type = 0) in the models generated during the inversion analysis. Maximum_value keyword must always be defined and if the parameter is defined as 'prescribed' via Type = 1, the value input for the prescribed parameter is ignored.
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