This document describes various work flows in OpendTect + plugins. We describe the purpose, what software is needed (OpendTect only or commercial plugins), and how to do it. The workflows are given in the form of a bullet list describing the sequential steps to be taken. Where possible, links to the User doc and the OpendTect and dGB websites are given with further information. For the latter links to work, you need access to the Internet.
Purpose: To load (calculate), move and display seismic information. Theory: OpendTect is a system for interactive data analysis. Seismic data is either retrieved from files stored on disk or data is calculated on-the-fly. You only retrieve or calculate what is needed at user-specified locations. All elements (inlines, crosslines, time-slices, random lines, sub-volumes, 2D seismic, horizons, faults (v3.2+), picksets, wells, bodies, annotations) are controlled from the tree. Only data that is present in the tree is currently residing in memory. In the scene, there are two basic modes of operation: View mode is for rotating, zooming and panning. Interact mode is for moving and resizing elements. Toggle between the modes by pressing the escape button on the keyboard or clicking the hand or arrow icon. Software: OpendTect
Workflow:
To view a seismic inline from a 3D volume: Right-click on the Inline entry in the tree.
Right-click on the new element and Select Attribute -> Stored data -> your seismic file (to do this you must already have imported seismic data into OpendTect).
To position the data either: 1) right click on the element -> Position, 2) fill in the line number in the position field (upper left corner of the UI, or 3) switch to interact mode (arrow icon) use the green anchors to resize, left click and drag to move and shift left click and drag to pan. Use right-click to reset accidental moves.
To change the view switch to view mode (hand icon). To rotate: left click and drag; to zoom: middle mouse wheel; to pan: middle mouse button click and drag.
Tips:
Mouse button settings can be changed under Utilities -> Settings -> Mouse controls.
Controlled zoom in view mode: press key board S and left click in the scene on the position to zoom to.
