OpendTect User Documentation version 4.0

dGB Earth Sciences

Copyright © 2002-2010 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 either of the license holders are permitted to make hardcopies for internal use: GNU GPL Commercial agreement Academic agreement
Table of Contents
1. Preface
1.1. About this manual
1.2. Release notes
1.3. About OpendTect
1.4. Copyright
1.5. Acknowledgement
2. Getting started
2.1. System overview
2.2. Toolbars
2.2.1. OpendTect toolbar
2.2.2. Manage toolbar
2.2.3. Graphics toolbar
2.2.4. Tracking toolbar
2.2.5. Slice position toolbar
2.3. Mouse Controls: Scenes & graphical interaction
2.4. Color Tables
2.5. General selection window
2.6. 2D Viewer
3. How to...
3.1. Quickstart a Project.
3.1.1. OpendTect Survey
3.1.2. Setup 2D/3D survey
3.1.2.1. Survey name and Type
3.1.2.2. Survey ranges
3.1.2.3. Coordinate Settings
3.1.3. Data loading
3.1.3.1. Load Seismic (2D/3D)
3.1.3.2. Load Well data
3.2. Display loaded data
3.3. Interpret horizons
3.3.1. 3D Horizon
3.3.2. Edit 3D-horizon
3.3.3. 2D Horizons
3.4. Interpret Faults
4. OpendTect Trees and Elements
4.1. Scene
4.2. Inline, Crossline & Timeslice
4.3. Volume
4.4. Random line
4.4.1. Manual Mode
4.4.2. Create from existing
4.4.3. Create along contour
4.4.4. Create from polygons
4.4.5. Create from wells
4.5. Pickset
4.5.1. Manual/Empty Picksets
4.5.2. Polygon
4.5.3. Generate Random Picks (3D)
4.5.4. Generate Random Picks (2D)
4.5.5. Pop-Up Menus
4.6. Horizon
4.7. 2D Horizon
4.8. Fault
4.9. FaultStickSet
4.10. Body
4.11. Well
4.12. 2D Seismic
4.13. Annotations
4.14. PreStack 3D viewer
5. Menu - Survey
5.1. Select/Setup Survey
5.1.1. Description
5.1.2. Survey selection window
5.1.3. New/Edit Survey setup window
5.1.3.1. Survey Ranges
5.1.3.2. Coordinate settings
5.2. Session
5.3. Import
5.3.1. Import Seismic
5.3.1.1. SEG-Y
5.3.1.1.1. SEG-Y import preparation
5.3.1.1.2. SEG-Y revision
5.3.1.1.3. SEG-Y Examiner
5.3.1.1.4. SEG-Y Import
5.3.1.1.5. SEG-Y scan
5.3.1.2. SEG-Y Pre-stack scanned
5.3.1.3. Simple File
5.3.1.3.1. Import 3D Simple File format
5.3.1.3.2. Import 2D simple file format
5.3.1.3.3. Import Prestack 3D simple file format
5.3.1.3.4. Import Prestack 2D simple file format
5.3.1.4. Import CBVS cube window
5.3.1.5. GPR: DTZ....
5.3.2. Import Pickset window
5.3.3. Import horizon
5.3.3.1. Geometry 3D
5.3.3.2. Attributes 3D
5.3.3.3. Geometry 2D
5.3.4. Import Fault
5.3.4.1. Import Fault Ascii3D
5.3.5. Import Well - Ascii
5.3.5.1. Track
5.3.5.2. Logs
5.3.5.3. Markers
5.3.5.4. Import Zero-Offset VSP
5.3.6. Import Wavelets
5.3.7. Import Mute
5.3.8. Import velocity functions
5.4. Export
5.4.1. Seismics
5.4.1.1. SEG-Y
5.4.1.2. Simple File
5.4.1.2.1. Export 2D simple file format
5.4.1.2.2. Export 3D simple file format
5.4.2. Horizons
5.4.2.1. ASCII 3D
5.4.2.2. ASCII 2D
5.4.3. Faults
5.4.4. FaultStickset
5.4.5. Picksets
5.4.6. Export Wavelets
5.4.7. Mute
5.4.8. Prestack Event
5.5. Manage
5.5.1. Description
5.5.2. Seismic file management window
5.5.2.1. Copy cube data window
5.5.2.2. Merge files window
5.5.2.3. Browse/Edit Cube Locations
5.5.2.4. Manage 2D seismic lines
5.5.2.5. Dump 2D geometry
5.5.2.6. Volume sub-selection
5.5.2.7. Pre-stack seismic manager
5.5.3. Horizon file management window
5.5.3.1. Horizon manager
5.5.3.2. Stratigraphy
5.5.3.3. Relations
5.5.4. Manage Faults
5.5.5. Well management window
5.5.5.1. Well manager
5.5.5.2. Well Track Editor
5.5.5.3. Markers Management
5.5.5.4. Time-Depth model
5.5.5.5. Logs
5.5.6. Pickset file management window
5.5.7. Wavelet management window
5.5.7.1. Wavelet Manager
5.5.7.2. Import wavelet
5.5.7.3. Generate synthetic wavelets
5.5.7.4. Statistical wavelet extraction
5.5.8. Manage Stratigraphy
5.5.9. Attribute Set Management
5.6. Pre-Loaded Seismic Data
6. Menu - Analysis
6.1. Attributes
6.1.1. Attribute Set window
6.1.2. Attribute Set toolbar
6.1.3. Auto Load Attribute Set
6.1.4. Default attribute sets
6.1.5. Input selection
6.1.5.1. Input selection for 3D attribute sets
6.1.5.2. Input selection for 2D attribute sets
6.1.6. Import an attribute set from...
6.1.7. Calculate Attributes
6.2. Volume Builder Setup
6.2.1. Lateral smoother
6.2.2. Horizon-based painter
6.2.3. Smoother
6.2.4. Body shape painter
6.2.5. Gridding
6.2.5.1. Velocity source
6.2.5.2. Velocity edition
6.2.6. Stored Volumes
6.3. Cross-plot
6.3.1. Well and attribute cross-plotting
6.3.2. Attribute-Attribute cross-plotting
6.3.3. Cross-plot filters
6.3.4. Attribute data and Toolbars
6.4. Well to Seismic Tie
6.4.1. Well-Tie selection window
6.4.2. Well-Tie: Display Panel
6.4.3. Well-Tie: Crosscheck Parameters
7. Menu - processing
7.1. Create Volume Output
7.1.1. Attribute
7.1.1.1. 2D: Create Lineset output
7.1.1.2. 3D: Create 3D Seismic output
7.1.1.3. Multi-Component outputs
7.1.2. Volume Builder Output
7.1.3. Time – depth conversion
7.1.4. Velocity Conversion ...
7.1.5. Pre-stack processing
7.1.5.1. Automatic Gain Control
7.1.5.2. Mute
7.1.5.3. Vertical stack
7.1.5.4. Velocity correction
7.1.6. Between Horizons
7.1.7. Along Horizon
7.1.8. Re-Start
7.2. Create Grid Output
7.2.1. Grid
7.2.2. Stratal Amplitude
7.2.3. Isopach
7.3. Madagascar
7.3.1. Madagascar Installation
7.3.2. Madagascar Processing window
7.3.3. Toolbar
7.3.4. Madagascar Processing input
7.3.5. Madagascar processing output
7.4. Generic Mapping Tools (GMT)
7.4.1. Introduction
7.4.2. Initial Setup
7.4.3. Create Postscript Maps
7.5. Batch Processing
7.5.1. Single machine batch processing window
7.5.2. Multi-machine batch processing window
7.5.3. Batch log file
7.5.4. Cluster processing
8. Menu - Scenes
8.1. Time and Depth converted scenes
8.2. Additional transformed scenes
9. Menu - View
9.1. Work area
9.2. Z-scale
9.3. Stereo viewing
9.4. Toolbars
10. Menu - Utilities
10.1. Settings
10.1.1. Fonts
10.1.2. Look and Feel
10.1.3. Mouse controls
10.1.4. Keyboard Shortcuts
10.1.5. Advanced
10.1.5.1. Personal Settings
10.1.5.2. Survey defaults
10.2. Tools
10.2.1. Batch Programs
10.2.2. Position Conversion
10.2.3. Create Devel. env.
10.2.4. Command Driver
10.3. Plugins
10.4. Show Log File
11. Menu - Help
A Attributes and filters
Convolve -- Attribute that returns a filtered response
Delta Resample -- Attribute that enables residual alignment of seismic volumes
Energy -- Response 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 -- Response 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 -- The pre-stack attribute can be used either to extract statistics on the gathers and their amplitudes, or to extract AVO attributes.
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 -- Multi-trace attribute that returns trace-to-trace similarity properties
Spectral decomposition -- Frequency 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
B Command Driver Manual
C SEG-Y checklist
Glossary