Note X and Y represent the coordinates of the location of the vertical trace, Line represents
2.9 Exporting SGrid Data
2.9.8 Exporting LGR Data from an SGrid to a Flow Simulator
With the LGR and Upscaling module, you can export local grid refinements (LGRs) within a stratigraphic grid along with property data to a flow simulation program. With this module, you can export LGRs in ASCII format to the CMG, ECLIPSE, and VIP flow simulators, and in binary format to ECLIPSE.
Note For more information about LGRs, such as why you may want to use them in flow simulation
and a description of the process to create them, see Part X: Reservoir Production and Simulation, "What Is Upscaling and Downscaling?" on page 2-2.
Caution ECLIPSE requires that the names of LGRs are eight characters or less. If you export LGRs with longer names, the converter truncates the names, which may cause ambiguity if the names are similar. In this case, you should rename the LGRs before you export them.
Binary format. When you export an SGrid in the ECLIPSE binary format, you do not need to specify any special information for LGRs. The exported GRID file (*.grid) automatically includes the geometry of the grid and all LGRs within the grid, and the INIT file (*.init) contains the property data, which is the same for the grid and the LGRs.
ASCII format. When you export an SGrid in ASCII format to a flow simulator, in the export converter, you will see an additional tab (LGR) for you to specify information about LGRs (see Figure 2–4). The information that you need to specify is similar for all of the ASCII file types that you can export.
For information about the prerequisites and the steps to specify this information, see:
•
"Prerequisites for exporting LGRs," page 2-61•
"To export local grid refinements (LGRs) to an ECL, VIP, or CMG ASCII file," page 2-612.9 Exporting SGrid Data 2-61 User Guide
Prerequisites for
exporting LGRs Before you can export LGRs, you will need to do the following.
To export local grid refinements (LGRs) to an ECL, VIP, or CMG ASCII file
After you define an LGR export scenario for the LGRs in your grid, do the following: 1 Select File > Export > SGrid, and then, depending on the simulator that you selected
in the export scenario, click either CMG or VIP or point to ECLIPSE and click ASCII. Note You can also open the export converter from:
• The context menu for the SGrid object in the Objects browser (right-click the name of the grid to access the menu).
• The LGR and Upscaling Workflow in the Defining LGR Export Scenarios > Define Scenarios and Export task).
2 If necessary enter the name of the stratigraphic grid (SGrid object) that contains the LGRs in the Reservoir Grid box.
3 Click the LGR tab, and then select the Export LGR check box to enable the export options.
4 In the LGR file box, enter a path and file name (including the file name extension, .lgr) for the exported file.
For information about this See this topic Load the LGR and Upscaling
module
Part I: Getting Started, "Choosing Modules for a Project," page 1-11
Import or create LGRs within an SGrid object*
*ECLIPSE requires LGR names of eight characters or less.
Part II: Data Import and Export, "Importing an ECLIPSE ASCII Grid File," page 1-46 or "Importing a VIP or ECLIPSE LGR File," page 1-57
– or –
Part X: Reservoir Production and Simulation, "Creating Local Grid Refinements (LGRs)," page 2-90
Define an LGR export scenario1
1. The ECLIPSE binary converter does not support LGR export scenarios. This converter automatically exports all LGRs within the grid.
Part X: Reservoir Production and Simulation, "Defining LGR Export Scenarios for Flow Simulation," page 2-111
5 In the LGR export scenario box, select the name of the scenario (that you created in the LGR and Upscaling Workflow), which contains the list of LGRs that you want to export from the selected grid.
Review the names of the LGRs in the Scenario Content list.
6 If you want to export property data along with each LGR, select the Export properties check box.
7 In the ECLIPSE converter, do the following:
a If you want to include any AMALGAM keyword data that you specified in the LGR export scenario, select the Export AMALGAM keyword check box.
For information about how to specify the data for the keyword in the LGR and Upscaling Workflow, see Part X: Reservoir Production and Simulation, "Defining LGR Export Scenarios for Flow Simulation" on page 2-111.
b Click Check LGR names to determine if the names of the LGRs are compatible with the ECLIPSE requirement (that is, eight characters or less).
The converter displays a message if you need to rename any of the LGRs.
Caution If you rename any of the LGRs, you will need to resave the LGR export scenario from the LGR and Upscaling Workflow, and then reselect the scenario in the converter.
8 In the VIP converter, if you want to include any OMIT or INGRID keyword data that you specified in the LGR export scenario, select the Export OMIT and INGRID keywords check box.
For information about how to specify the data for the keyword in the LGR and Upscaling Workflow, see Part X: Reservoir Production and Simulation, "Defining LGR Export Scenarios for Flow Simulation" on page 2-111.
2.9 Exporting SGrid Data 2-63 User Guide
9 To export additional data from the selected SGrid, click another tab in the converter and enter information as necessary. For information, see:
•
"Exporting an SGrid to an ECLIPSE ASCII File" on page 2-43•
"Exporting an SGrid to a VIP File" on page 2-54•
"Exporting an SGrid to a CMG File" on page 2-38Carrying out the command converts the LGR data to ASCII format and saves the file in the folder that you specified.