iProject Viewers

Reservoir characterization requires the integration of many data types. iProject is an integrated data repository, and as such, it is equipped with specialized viewers to accommodate all data types.

Within iProject, the different viewers will be automatically started by selecting a file and clicking the View in iProject icon. The viewer to be started will be selected according to the file's extension. The table below summarizes the viewing capabilities of iProject.

The standard Windows documents will be displayed in any web browser enabled for the associated file extensions. In the next sections, we focus on iProject's internal viewers specialized for reservoir characterization data.

The iProject's PLOT viewer can display columns of data on an X-Y graph. The file to display needs to be an ASCII file with columns of data or an Excel spreadsheet with no extra formatting extensions or calculations. The file can have text header lines before the start of the first line of data. The viewer can display multiple curves on the same X-Y graph. For example, you may have multiple Y data for one series of X data (as shown below) or you may have multiple series of X-Y data. You have options for line colors, patterns, x and y increasing/decreasing, logarithmic scale etc... You can also look at the data values. It is very convenient for displaying multiple engineering data versus time. On the "Define Plot" tab, you have an option to save the graph as a plot file (extension .plt). This allows you to save the graph view with all its formattings. The .plt file has a link to the data, the .col file. This way, anyone viewing the .plt file will have the graph displayed as intended to be. This option is useful when the graph is likely to be used by non-technical collaborators on the project.

The LAS files are displayed with the iProject's internal LAS viewer. When the file is opened, the LAS viewer will open whatever previous selection was made for the tracks, colors, curve patterns, etc... An example of the viewer is shown below.

The LAS viewer has three tabs to set and select options from. From the Aliases tab, you can select an aliases file to bring down the curve names to the few common types you like to use for your project. The aliases file is selected by exploring the project file system tree. You open the file system tree window by clicking the top right button on the "Aliases" tab window.

The iProject has a "Contour" viewer for viewing maps of regularly gridded data. The file extensions recognized by iProject are ".grd" and ".xyz". The file format is ASCII with a series of XYZ triplets, one triplet per line. The file may have text header lines before the start of the numeric lines. Below is an example of a contour map with culture data overlay on it. The culture data are stored in ASCII files of numeric values that represent polylines, one polyline per file. Each line of numeric values is composed of an XY couple with an optional ID for documentation. If an integer ID is present, it will be ignored by the viewer. With the "Contour" viewer, the culture files are selected on the "Culture Data" tab (see second picture below). There you select the ".clt" files by searching the file system tree of the project. You can assign a different color to each file. In our example below, the well locations are in red, a seismic line with shotpoint locations in yellow, and section boundaries are in blue. The selected culture data files can be saved as default culture data to be displayed with all ".grd" files in the project. This option can be selected on the "Culture Data" tab.

The "Contour" viewer has a zoom bar that you can slide to the right to zoom and slide to the left to zoom out. For a comparison and a better idea of how it works, compare the picture below with the first picture above. You'll notice that it's zoomed into a specific area of the map.

iProject has a SEG-Y viewer for seismic data. You can view the seismic data by selecting the ".segy" file and clicking the "View in iProject" icon. For a newly uploaded SEG-Y file, the viewer will initially open to the "SEGY Fields" tab. The header fields information needs to be entered and saved before the data can be plotted. Because of that, it is important that the person who is loading the SEG-Y file does it since he/she should know about BYTES fields and BYTES lengths for inlines and crosslines. Other important information that should be set after uploading is the geometry of the seismic survey (see the second picture below.) The geometry is input by assigning (x,y) coordinates to three unaligned seismic traces. For a rectangular survey, the bottom left, bottom right and top right traces would be a good choice. The geometry does not need to be filled in to display the data. Once that information is saved, it does not need to be entered for subsequent display of the seismic data. Someone who is not aware of those SEG-Y parameters, would then be able to look at the data without problems. If the "Trace Header Fields" are correctly entered, you will be able to browse all the data of the "Reel Header Fields" (EBCDIC) and the "Trace Header Fields" shown at the bottom of the "SEGY Fields" tab.

When the SEG-Y fields have been saved for a seismic file, the viewer will open to the "Plot Layout" tab. The SEG-Y files viewer allows you to display seismic lines, inlines or crosslines. On the "Plot Layout" tab, you select the line and the time window. The actual seismic data are plotted after clicking the "Plot" button at the bottom right of the "Plot Layout" tab. On the "Plot Layout" tab you can use the slide bar for the wiggle factor. A slide to the right will increase the gain and decrease it with a slide to the left.

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