OpendTect User Documentation version 3.2

dGB Earth Sciences

Copyright © 2002-2008 by dGB Beheer B.V.

All rights reserved. No part of this publication may be reproduced and/or published by print, photo print, microfilm or any other means without the written consent of dGB Beheer B.V. Under the terms and conditions of the OpendTect license agreement license holders are permitted to make hardcopies for internal use.
Table of Contents
1. Preface
1.1. About OpendTect
1.2. About this manual
1.3. Release notes
1.4. Copyright
1.5. Acknowledgement
2. Getting started
2.1. System overview
2.2. User interaction
2.2.1. Toolbars
2.2.1.1. OpendTect toolbar
2.2.1.2. Graphics toolbar
2.2.1.3. Manage toolbar
2.2.1.4. Tracking toolbar
2.2.1.5. Slice position toolbar
2.2.2. Trees & pop-up menus
2.2.2.1. Scene
2.2.2.2. Inline, Crossline & Timeslice
2.2.2.3. Volume
2.2.2.4. Random line
2.2.2.4.1. Manual Mode
2.2.2.4.2. Create from existing
2.2.2.4.3. Create along contour
2.2.2.4.4. Create from polygons
2.2.2.4.5. Create from wells
2.2.2.5. Pickset
2.2.2.5.1. Random picksets
2.2.2.5.2. Empty Picksets
2.2.2.5.3. Polygon
2.2.2.6. Horizon
2.2.2.7. Fault
2.2.2.8. Body
2.2.2.9. Well
2.2.2.10. 2D
2.2.2.11. Annotations
2.2.2.12. PreStack 3D viewer
2.2.3. Mouse Controls: Scenes & graphical interaction
2.2.4. Color bars
2.2.5. General selection window
2.2.6. 2D Viewer
3. How to...
3.1. Quickstart a Project.
3.2. Interpret horizons
3.2.1. Creating new horizons
3.2.2. Edit horizons
3.2.3. 2D Horizon
3.3. Make attribute crossplots
3.4. Make bodies
4. Menu - File
4.1. Survey
4.1.1. Description
4.1.2. Survey selection window
4.1.3. New/Edit Survey setup window
4.1.3.1. Survey Ranges
4.1.3.2. Coordinate settings
4.2. Session
4.3. Import
4.3.1. Seismics
4.3.1.1. SEG-Y
4.3.1.1.1. Import SEG-Y data window
4.3.1.1.1.1. 2D Data Organization
4.3.1.1.1.2. 2D selection possibilities
4.3.1.1.1.3. 3D selection possibilities
4.3.1.1.1.4. Pre-Stack selection possibilities
4.3.1.1.2. SEG-Y access definition window
4.3.1.1.2.1. 2D data settings
4.3.1.1.2.2. 3D data settings
4.3.1.1.2.3. Pre-stack data settings
4.3.1.2. Import CBVS cube window
4.3.1.3. Simple File
4.3.2. Import Pickset window
4.3.3. Import horizon window
4.3.3.1. Geometry 3D
4.3.3.2. Attributes 3D
4.3.3.3. Geometry 2D
4.3.4. Import Fault
4.3.5. Import Well - Ascii
4.3.5.1. Track
4.3.5.2. Logs
4.3.5.3. Markers
4.3.6. Import Wavelets
4.4. Export
4.4.1. Seismics
4.4.1.1. SEG-Y - Seismic data access window
4.4.1.1.1. 2D export options
4.4.1.1.2. 3D export options
4.4.1.2. SEGY - Seismic access definition window
4.4.1.2.1. 2D export options
4.4.1.2.2. 3D export options
4.4.1.3. Simple File
4.4.2. Horizons
4.4.3. Faults
4.4.4. Picksets
4.5. Manage
4.5.1. Description
4.5.2. Seismic file management window
4.5.2.1. Copy cube data window
4.5.2.2. Merge files window
4.5.2.3. Browse/Edit Cube Locations
4.5.2.4. Manage 2D seismic lines
4.5.2.5. Dump 2D geometry
4.5.2.6. Volume sub-selection
4.5.2.7. Pre-stack seismic manager
4.5.3. Horizon file management window
4.5.4. Well management window
4.5.5. Pickset file management window
4.5.6. Wavelet management window
4.5.7. Manage Stratigraphy
5. Menu - processing
5.1. Attributes
5.1.1. Attribute Set window
5.1.2. Attribute Set toolbar
5.1.3. Input selection
5.1.3.1. Input selection for 2D attribute sets
5.1.3.2. Input selection for 3D attribute sets
5.1.4. Default attribute sets
5.1.5. Open an attribute set from...
5.1.6. Auto Load Attribute Set
5.2. Cross-plot
5.2.1. Attribute cross-plot window
5.2.2. Cross-plot filters
5.2.3. Attribute data and Toolbar
5.2.4. Well and attribute cross-plot window
5.3. Madagascar
5.3.1. Madagascar Processing window
5.3.2. Toolbar
5.3.3. Madagascar Processing input
5.3.4. Madagascar processing output
5.4. Batch Processing
5.4.1. Single machine batch processing window
5.4.2. Multi-machine batch processing window
5.4.3. Batch log file
5.5. Create Seismic output
5.5.1. Description
5.5.2. Volume output window
5.5.3. Select quantity window
5.5.4. Format/Scaling
5.6. Create output using Horizon...
5.6.1. Horizon grid
5.6.2. Between Horizons
5.6.3. Horizon slice...
5.6.4. Stratal Amplitude
5.7. Re-Start
5.8. PreStack gathers
5.8.1. Automatic Gain Control
5.8.2. Mute
5.8.3. Vertical Stack
6. Menu - windows
7. Menu - View
7.1. Work area
7.2. Z-scale
7.3. Stereo viewing
7.4. Toolbars
8. Menu - utilities
8.1. Settings
8.1.1. Fonts
8.1.2. Mouse controls
8.1.3. Look and Feel
8.1.4. General
8.1.5. Shortcuts
8.2. Batch Programs
8.3. Plugins
8.4. Position Conversion
8.5. Create Devel. env.
8.6. Show Log File
8.7. Command Driver
9. Menu - Help
A Attributes and filters
Coherency -- Attribute that emphasizes areas of highest discontinuity
Convolve -- Attribute that returns a filtered response
Delta Resample -- Attribute that enables residual alignment of seismic volumes
Energy -- Attribute that returns the energy of a trace segment
Event -- Attribute that quantifies an event's shape or distance relative to a next event
Fingerprint -- Attribute that computes the similarity between a user-defined vector of attributes and the equivalent vector taken at each position in a cube.
Frequency -- Attribute that returns frequency properties
Frequency Filter -- Attribute that returns filtered data using FFT or Butterworth filter types
GapDecon -- Attribute that aims to attenuate repetitions of primary reflections (multiples).
Horizon -- Attribute that enables advanced calculations on horizons
Instantaneous -- Attribute that returns an instantaneous attribute
Match Delta -- Attribute that extracts time shifts between similar events in different seismic volumes
Mathematics -- Attribute that returns the result of a user-defined mathematical expression
Position -- Attribute that returns any attribute calculated at the location where another attribute has its minimum, maximum or median within a small volume.
Prestack attribute -- This attribute enables you to load, display, use and manage pre-stack data
Reference -- Attribute that returns the definitions of the extraction position
Reference shift -- Attribute that moves the extraction position in 3D space
Scaling -- Attribute used for scaling of amplitude
Similarity -- Attribute that returns trace-to-trace similarity properties
Spectral decomposition -- Attribute that returns the amplitude spectrum (FFT) or waveletcoefficients (CWT)
Velocity Fan Filter -- Attribute that returns energy with apparent velocities inside a specified Min/Max range.
Volume statistics -- Attribute that returns statistical properties
Glossary