Install guide

Seismic Polygon Clipping
The seismic polygon clipping a utility takes as input a 3D seismic volume, trims it to one or
more polygon shapes within the specified mapping polygon set in OpenWorks, and writes
a new seismic volume as output. This may be used for example to cut out some complex
lease shape from a larger survey.
Additional notes:
• Polygons may be INCLUSIVE or EXCLUSIVE, i.e. the output will include all
traces within one or more INCLUSIVE polygons, and exclude traces that are in
any EXCLUSIVE polygons.
• If there are only EXCLUSIVE polygons and no INCLUSIVE polygons, then
assume an INCLUSIVE polygon bounding the 3D survey outline.
• No seismic reformatting is done, so same output format as the input, just clipped
to the polygon boundaries.
• The output seismic dataset and version must not exist.
• The polygon set id must exist and must contain polygons.
Command-line usage:
prompt> seisPoly
Usage: seisPoly owproj survey seismic dataset version id
<owproj> OpenWorks project name
<survey> SeisWorks survey name
<seismic> input seismic file name, e.g. mig0801.3dv
<dataset> output seismic dataset name
<version> output seismic version
<id> mapping polygon set id.
Example:
prompt> seisPoly SWDEVKIT devnor mig0801.3dv clipped V1 123
If survey name, output dataset or version has spaces, the following syntax is required:
prompt> seisPoly SWDEVKIT devnor ESP24.bri "{ESP clipped}" V1 123
An alternative way to execute seisPoly is to use the SeisPoly graphical user
interface. First source the WebApps environment then type the appropriate command:
prompt> source $OWHOME/WebApps/templates/wow.login
(if C-shell)
prompt> . $OWHOME/WebApps/templates/wow.profile (if Bourne shell)
prompt> SeisPoly
SeisPoly may also be launched from the wowgui interface.
The SeisPoly GUI is illustrated overleaf.
WOW 5000.0.1.11 Release Notes Page 62 of 104 March 2014