| OpendTect User Documentation version 4.2 |
|---|
| Prev |
|
Next
|
A FaultStickSet is a set of sticks for faults interpretation. Sticks are segments that are created by connecting two or more nodes.
The FaultStickSet tree item allows the user to create a new FaultStickSet or to load an existing one.
The new FaultStickSet is inserted by selecting the New option in the tree. The blank fault New sticks 1 will be inserted as sub-element of FaultStickSet.
The user can then interpret the fault sticks on inline/crossline/Zslice and/or on 2D lines as well.
In order to create and edit a faultstickset, check first that the faultstisckset is active in the tree, then do the following:
1- Click along the fault to create your first fault stick for one specific section .
2- The second fault stick in the same section is created by shift + leftclick for the first pick then just leftclick for the next faultpick(s)
3- To remove a fault stick node, Ctrl+leftclick on the already picked nodes.
4- Once you are done with one section, move to another inline/crossline/timeslice/ or 2D line to create new fault sticks. A simple click will start the fault stick creation.
5- If you want to edit one stick while being busy with another, just click on one of it seeds to make it active. While editing, you can click and drag a seed to another position.
After interpreting the FaultStickSet, use the option Save to save your set with an appropriate name.
An example of a picked FaultStickSet with seeds, the active stick is the second from right
An example of synthetic and antithetic FaultStickSet
In OpendTect, newly interpreted faultsticksets (or a selection) can be transformed into 3D faults and vice versa, from 3D faults the user can output faultsticks.
The conversion between faults and faultsticks is done in a special toolbar as shown below:
In the toolbar, they are two modes: The Edit mode and the Selection mode:
- Edit Mode:
In this mode, nodes are yellow, the user can add nodes (click), remove nodes (Ctrl+click). Nodes can be dragged from one location to another. New sticks are created by Shift+click for the first node then just click for other sticks.
When using Space+click, this will duplicate the node(s) and new sticks can be added to the user-defined direction.
Nodes are yellow in Edit Mode
- Selection mode:
When this mode is active, Faults/Faultsticks are selected, copied (or moved) to new or already existed faults/sticks group. The outputs are: New group, merge to existing one, replace (overwrite) the already existed group.
Creating new group of faults/sticks in series will automatically rename group by adding a suffix to the first new group name provided by the user. If the name is e.g Fault-Area then automatically generated names will be like, Fault-Area_1, Fault-Area_2, Fault-Area_3 etc ....
In Selection Mode, Nodes are green (selected) and pink (unselected)