A model for Arps Decline Curve fitting and forecasting.
Usually applied to oil-and-gas production rate (Y) vs time (X) data.
Inheritance Hierarchy
Node
Spotfire.Dxp.Framework.DocumentModelDocumentNode
Spotfire.Dxp.Application.Visuals.FittingModelsFittingModel
Spotfire.Dxp.Application.Visuals.FittingModelsArpsDeclineCurveFittingModel
Namespace: Spotfire.Dxp.Application.Visuals.FittingModels
Assembly: Spotfire.Dxp.Application (in Spotfire.Dxp.Application.dll) Version: 71.0.22122.5390 (71.0.22122.5390)
Syntax
C#
[SerializableAttribute] [PersistenceVersionAttribute(71, 0)] public sealed class ArpsDeclineCurveFittingModel : FittingModel
The ArpsDeclineCurveFittingModel type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
| ActiveForecastEndMode |
Gets or sets the forecast end mode. Determines how the end of the forecast is controlled, either by an economic limit or a specified forecast length.
| |
| BParameter |
Gets the CurveFitParameter for the decline exponent b.
| |
| Context |
Gets the context of this node.
(Inherited from DocumentNode.) | |
| DiParameter |
Gets the CurveFitParameter for the initial nominal decline rate Di.
| |
| DLim |
Gets the value for the decline limit from the preprocessor expression. Can be null if the expression is invalid.
| |
| DLimExpression |
Gets or sets the preprocessor expression for the decline limit.
The model switches from hyperbolic to exponential decline after reaching this limiting value.
| |
| Enabled |
Gets or sets a value indicating whether this FittingModel is enabled.
(Inherited from FittingModel.) | |
| FittedCurve |
Gets the fitted curve.
| |
| ForecastCurve |
Gets the forecast curve.
| |
| ForecastTime |
Gets the value for the forecast time preprocessor expression. Can be null if the expression is invalid.
| |
| ForecastTimeExpression |
Gets or sets the preprocessor expression for the forecast time value.
| |
| IndividualFittingModes |
The visualization features to calculate curves for. Features may be combined,
which will result in one curve per combination.
(Inherited from FittingModel.) | |
| IsAttached |
Gets a value indicating whether this node is attached.
(Inherited from DocumentNode.) | |
| LimitToMarking |
Gets or sets a value indicating whether the fitting model should only include marked data when fitting.
When true the active marking from the owning visual will limit the data used to perform the curve fit.
Note that for some fitting model that don't use the visualization data, this property has no effect.
(Inherited from FittingModel.) | |
| ManualUpdate |
Gets or sets a value indicating whether to use manual updates.
(Inherited from FittingModel.) | |
| QEcl |
Gets the value for the economic limit of production from the preprocessor expression. Can be null if the expression is invalid.
| |
| QEclExpression |
Gets or sets the preprocessor expression for the economic limit of production used to determine the end of the forecast.
| |
| QiParameter |
Gets the CurveFitParameter for the initial production rate qi.
| |
| StartAtLastBreak |
Gets or sets a value indicating whether the fit starts at the last break in production. A break is a time when the production rate is reported as zero.
| |
| TimeUnit |
Gets or sets the time unit. Used to convert datetime to a suitable scaled time value for fitting the model. Only applicable if the X axis expression results in an DateTime.
| |
| Transactions |
Gets a collection of methods for executing transactions on the document.
(Inherited from DocumentNode.) | |
| TransitionPoint |
Gets the transition point. The point shown when the decline reaches the decline limit and the curve transitions from hyperbolic to exponential decline.
| |
| TypeId | Gets the type identifier for this fitting model. The type identifiers for the built-in fitting models are
defined in FittingModelTypeIdentifiers.
(Inherited from FittingModel.) |
Methods
| Name | Description | |
|---|---|---|
| ForEachNodeInSubTreeTNode |
Applies the specified action to all nodes of the specified type in the subtree spanned
from this node, including this node.
(Inherited from DocumentNode.) | |
| GetResultsDataSource | Gets the current results as a data source.
(Inherited from FittingModel.) | |
| GetType | Gets the Type of the current instance. (Inherited from Object.) | |
| ToString | Returns a string that represents the current object. (Inherited from Object.) | |
| Update |
Forces an update of this fitting model. Only allowed if ManualUpdate is set to true.
(Inherited from FittingModel.) |
Explicit Interface Implementations
Version Information
Supported in: 15.0
See Also