Lynx Seismap is a seismic viewer extension for ESRI ArcMap® version 9.x.
Seismap features:
2D and 3D seismic profile displays are launched by selecting a line within ArcMap. Each seismic profile is displayed in a separate window, and the current shotpoint/CDP range is displayed on the map. Multiple seismic profiles can be viewed at a time, and surfaces can be overlaid on the seismic profile as horizons and faults. As with the Lynx standalone viewer SeisView, the viewer allows extensive control over the display scales and zooming, with many different display options, and printing of the seismic data to full-scale windows-compatible plotters.
The image above shows a 2D seismic basemap in the ArcMap main window, and two seismic viewer windows displaying 2D profiles in colour display mode.
The image above shows a 3D seismic survey polygon (overlaid with live traces) in the main ArcMap window, with seismic viewer windows showing two inlines and one crossline in greyscale display mode.
The prerequisites for Seismap are similar to those required for standard ArcMap field-based hyperlinks. For 2D seismic data, Seismap requires a Polyline-M feature class or route event (which can be a shape file, geodatabase or SDE layer) containing the seismic locations: each seismic profile should be a separate feature, with shotpoints stored as the measure values. The attribute table must contain a field which contains the file-path targets for the seismic data. The seismic files can be either standard SEG-Y or Lynx TR-files.
For 3D seismic data, Seismap requires a feature class containing a polygon
outline of each 3D survey, with inline and crossline numbers stored for each vertex as ID/M or Z/M
values respectively. As with 2D data, the attribute table should contain a field for each feature
(ie survey) which contains the file-path target. The seismic data for each survey should be
stored in a single SEG-Y file per survey, sequential inlines stored end-to-end, with ascending
crossline numbers for each inline. It is not necessary to pad all inlines to the same number of
traces. Inline and crossline numbers should be stored in the trace headers of the SEG-Y
data.
Lynx provides tools, utilities and integrated wizards to read coordinates from trace
headers and create the required polygon feature classes.
Horizon and fault polylines and surfaces can be displayed as overlays on your seismic profiles. Surfaces can be stored as either ESRI raster grid files or as TINs (display of TIN surfaces requires an ESRI 3D Analyst extension license).
The menu on the Seismap toolbar allows you to set the map frame, layers and field to use for displaying seismic data. Once you have set the layers to use, the Seismap configuration is saved into your MXD map document, so that the settings will be restored the next time this document is opened.
To display seismic data, activate the Select Seismic Profile tool on the Seismap toolbar, then click the line you want to view on the map to launch a seismic viewer window.
The image above shows the toolbar installed into ArcMap by the Seismap extension, with the configuration menu open. The current shotpoint ranges of two seismic profiles are displayed on the map.
The images above show examples of a seismic profile displayed in greyscale mode and VA/wiggle mode, with line intersections shown in the shotpoint scalebar and horizon overlays.
Seismap provides an alternative interface to ArcMap's labelling options, for quick and easy creation of seismic basemaps. You can easily set correctly oriented line names and shotpoint number labels using a simplified subset of the wide range of options available in ArcMap.
The labelling options are displayed in a dialogue which summarises and simplifies the ArcMap labelling and hatching options.
Seismap provides import and export utilities to convert between UKOOA-style (and SEG-P1) or CSV files and feature classes.
The image above shows the import of a UKOOA file. You can customise the column layout and coordinate format used in the input file to read most common variations on the UKOOA and SEG-P1 specifications. You can also import CSV files containing shotpoint coordinates. The wizard will create shape file which will be added directly to your ArcMap project.
Import and export of Z-Map grids (Z-Map ASCII grid files) allows interchange of data with many common geophysical software packages. For example, you could import gridded horizons or reservoir models. Imported grids are saved as ESRI raster grids. Seismap will correctly handle input Z-Map grids with rectangular sample grid cells, and interpolate an output raster grid with square sample cells, to avoid distortion of the surface.
Lynx Seismap can also import picked horizon and fault data to polyline-XYZ feature layers. These layers can be overlaid on seismic data (see above) and displayed by their Z-values in ArcMap using a custom feature renderer:
Download a trial version of Seismap and a sample ArcMap project here, or contact us for more information.
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Copyright © Lynx Information Systems, 2007. All Rights Reserved
