Merge Horizons
The Merge Horizons application allows you to merge two or more horizons into a single horizon. This is useful when you have horizons with different names that actually represent the same physical horizon. Merging allows them to be displayed on the map as a single horizon.
How do I merge two or more horizons?
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Select the horizons to be merged.
-
Select the Seismic Lines that the horizons should be merged on.
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Specify a name for the Destination Horizon. You can merge picks to a horizon that already exists or create a new horizon.
-
Select the behavior When picks conflict and there is a pick for more that one horizon on a single trace.
-
(Optional) Set Constraining Polygons.
-
Click
to merge
horizons.
Note: Merging horizons doesn't affect
the original horizons unless you are overwriting one of the original
horizons. Horizons can be deleted from the Horizon Properties
window.
General Information
Select Horizons
Select the horizons that you want to merge. Left click to select a horizon, or use the Ctrl key on your keyboard to select multiple horizons, and then use the selection arrows to move the horizons to the Selected list. Alternately, you can move a single horizon to the Selected list by double clicking on it.
To help you make your horizon selections, you can sort any column by
left clicking
on the column header, you can apply a filter (
), or you can type a search string
into the search
bar to limit the list using Name, Type, or Owner information.
For additional selection options right click on the horizons list to access
the shortcut
menu.
Select Seismic Lines
Select the lines whose horizons you want included in the horizon merge
operation. Left click to select a seismic line, left click while
pressing the Ctrl key on your
keyboard to select multiple seismic lines, or select a group of lines
from the Basemap.
To help you make your seismic line selections, you can sort any column
by left clicking
on the column header, you can apply a filter (), or you can type a search string
into the search
bar to limit the list using Name,
or Owner information.
For additional selection and navigation options right click on the Seismic Lines list to access the shortcut menu.
Include
SEG-P
lines: Select this item to include SEG-P
lines in the list.
Some interpreters will have horizons imported into their
SEG-P
lines. This allows computations to be performed on those lines.
Output Options
Destination Horizon:This is the horizon that will receive picks from the selected horizons. You can select an existing horizon, which will be overwritten, or type in the name of a new horizon.
When Picks Conflict: Specify what to do when there is a horizon pick for two or more of the selected horizons at a given trace. If there is no pick for any of the source horizons, the destination pick remains unmodified. If you want the destination horizon considered in the shallowest/deepest comparison, it must be in the selected horizons list.
Use deepest pick: If there is a pick in any of the
selected horizons at a given trace, the deepest pick will be used.
Use selected order:The pick value of the first horizon that appears in the Selected list will be used. If no data exists on the first horizon, the second will be used, etc.
Use shallowest pick: If there is a pick in any of the selected horizons at a given trace, the shallowest pick will be used.
Constraining Polygons
Polygons:
Open the Select Polygons
dialog and select inclusion or exclusion polygons to define the
geographical extents of
the horizon merge.
— MORE INFORMATION
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