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This section describes the SEG-Y revisions supported by Geocap.

SEG Y (1975)

This standard is covered. Any file stored on this format will be read by the SEGY-Tool.


SEG Y Revision 1 (2002)

This standard is covered with the exception of:

  • Extended textual file header


The Extended textual file header defined in Revision 1 allows for one or more 3200-byte records and provides additional space for recording required information about the SEG Y file.

Attempting to read a file stored on this format with an extended file header will cause the SEGY-Tool to fail.


SEG Y Revision 2 (2017)

This standard is not covered.

Most of the changes for Revision 2 involves data precision. The format, for example, allows for data to be stored as 8 byte samples.

In addition, trace headers can extend their previously fixed 240-byte size.

Files on this format that utilizes new Revision 2 functionality cannot be read by the SEGY-Tool.

Requirements

Geocap for ArcGIS requires ArcMap 10 with licensing level of Basic or higher. This documentation assumes basic familiarity with ArcMap.

License

The Seismic Explorer requires a license. A thirty-day trial license is included. You can use the Seismic Explorer out of the box for the duration of this period. When the trial period is over please contact Geocap sales for an extension.

To install an extended license:

  1. Make sure the 3D Explorer toolbar is enabled. In ArcMap click Customize -> Toolbars to see the list of available toolbars.
  2. In the 3D Explorer toolbar click Help then Install License. Follow the instructions.
  3. Perform the steps outlined in the Setup section below.

Setup

Before you begin ensure that the components of the Geocap Seismic Explorer are accessible:

To enable the Geocap toolbars:

  1. In ArcMap, click Customize, then Extensions
  2. Enable the extensions Geocap 3D Explorer and Geocap Seismic Explorer
  3. In ArcMap, click Customize, then Toolbars
  4. Enable the toolbars Geocap 3D Explorer and Geocap Seismic Explorer.

To add Geocap tools:

  1. Create a new toolbox or access an existing one
  2. Right-click the toolbox, then click Add. On the menu click Tool. The Add Tool dialog will  open.
  3. Check the toolbox Geocap Tools. Ensure that all tools in the toolbox are checked. Click OK.
  4. The Geocap Tools are now added to your toolbox.