Segments and Boundaries
Once a GeoMatch is active, the correlation between your two wells is broken into segments, intervals between boundary points along the Vertical Section.
Once a GeoMatch is active, the correlation between your two wells is broken into segments, intervals between boundary points along the Vertical Section. These tools let you add, adjust, and clean up those boundaries. All of them require GeoMatch mode to be active (the tools were found in the toolbar's GeoMatch group), several also require you to have a specific item selected first.
Add Segment
A toggle button. Click it once to turn on "add segment" mode (the button shows an active state while it's on). While active, clicking on the plot between two existing segment boundaries inserts a new boundary at that Vertical Section position, splitting the interval in two.
This only works while GeoMatch mode is active and a valid segment boundary already exists to click inside of, it's not available before you've created a GeoMatch.
📸 Screenshot 1: Add Segment mode active, cursor about to click a point on the plot to insert a new boundary.
Thickness Change
Another toggle button, for adjusting a segment's thickness by interacting with its connecting line (the "linker") on the plot directly, rather than typing a number.
📸 Screenshot 2: Thickness Change mode active on a segment linker.
Reset Segment
Select a segment boundary on the plot first, then click Reset Segment to reset that segment back to its calculated position, discarding any manual adjustment you'd made to it.
📸 Screenshot 3: A selected segment boundary with the Reset Segment button available.
Hide / Unhide
Select an item (typically a segment boundary), then click this button to toggle its visibility on the plot. The icon and tooltip flip between "Hide" and "Unhide" depending on the current state.
Deleting a Segment Boundary
Covered in the Editing doc, but worth repeating here since it's really a GeoMatch action: with a segment boundary selected, the toolbar's Delete button removes it, but only if it isn't marked as structurally necessary. Boundaries the calculation depends on can't be deleted this way.
📸 Screenshot 4: A deletable (non-necessary) segment boundary selected, Delete enabled.
What's Next
Part 3 covers Connect and reference wells, tying additional offset wells into an active GeoMatch. Part 4 covers Synthetic Log.
Create a GeoMatch
GeoMatch is GeoMaster's correlation tool. It compares a log curve from the well you're geosteering against the same kind of log curve from a reference…
Reference Wells
A GeoMatch correlates your geosteering well against a reference well, an offset or type well brought into the project specifically to correlate against.