ResInsight can create contour maps based on different forms of aggregation of 3D Eclipse data onto a 2D Plane. Any 3D result value can be aggregated, in addition to specialised results, such as Oil, Gas and Hydrocarbon columns. A Contour Map is a specialised 2D view with many of the same features as the 3D views, including property filters, range filters and display of faults and wells. ResInsight is able to export a contour map to a text file.
Contour Maps can be created in many different ways:
A contour Map has many of the same options available as a 3D View, but is always orthographic/parallel projection with no perspective projection or lighting available. Instead of the 3D Grid Box, the Contour Maps uses a 2D Grid simular to the 2d Intersection Views with optional Axis Lines controlled with the Show Axis Lines toggle. The name of the map can be automatically generated from the Case Name, Property Type, Aggregation Type and Sample Spacing (See Map Projection Properties for the two latter).
The Map Projection settings control how the 3D Data is aggregated onto the 2D plane. In all cases the results are calculated for a square 2D Cell lying in an arbitrary z-plane of the 3D Grid. For each 2D cell a cuboid extrusion in the full bounding extent of the 3D grid is created and this cuboid extrusion is used to calculate the volume of intersection with the 3D Grid cells for all volume weighted sums and averages. For the regular sums, a vertical ray through the center of the 2D cell is used instead. Since the ray may travel through multiple cells in the same K-layer, all the values from within one K-layer are averaged before being added to the sum.
A set of parameters governs this projection:
|Oil Column||A sum of SOIL * NTG * PORO * dZ|
|Gas Column||A sum of SGAS * NTG * PORO * dZ|
|Hydrocarbon Column||A sum of (SOIL + SGAS)* NTG * PORO * dZ|
|Arithmetic Mean||A volume weighted arithmetic mean of the specified cell result|
|Harmonic Mean||A volume weighted harmonic mean of the specified cell result|
|Geometric Mean||A volume weighted geometric mean of the specified cell result|
|Volume Weighted Sum||A volume weighted sum of the specified cell result. Suitable for volume fractions such as SOIL or PORO|
|Sum||A sum of the specified cell result. Suitable for absolute quantities.|
|Top Value||The first value encountered downwards vertically|
|Min Value||The minimum cell result value in the volume underneath the 2D Element|
|Max Value||The maximum cell result value in the volume underneath the 2D Element|
For the Column options, no Cell Result is available in the property tree under the Contour Map.
For the Arithmetic Mean, Geometric Mean and Harmonic Mean it is also possible to specify a cell result as a weighting parameter in addition to the regular weighting by volume of intersection. The total weight will then be the volume of intersection multiplied by the specified cell result. The full range of regular cell results is available for this use.
Creating a Contour Map as a difference with a specific base case and/or base time step is performed by clicking the Cell Result item underneath the actual Contour Map in the project tree. This will display the Cell Result Property Editor to specify base case and/or base time step.
ResInsight is able to export a contour map to a text file.