資料介紹

OpendTect軟件是荷蘭dGB公司研發的一個地震目標檢測系統，集層序地層解釋系統、傾角導向、地震顏色反演等功能為一體，可同時對多個地震屬性體進行處理、可視化和解釋。其中最具特色的技術是傾角導向和層序地層解釋系統。

　　該軟件利用傾角導向可直接生成導向體，導向體包含空間每一個采樣點的傾角和方位角信息，在多道屬性處理及濾波時利用導向體來充分考慮地質目標體的空間展布，從而提高目標體及斷裂檢測的精度。

　　此外，運用傾角導向功能還可自動追蹤年代地層事件，進而進行沉積體系域解釋，幫助研究人員更直觀、更深刻地理解地層沉積演化過程。



OpendTect


OpendTect is an open source seismic interpretation software system for processing, visualizing and interpreting multi-volume seismic data, and for fast-track development of innovative interpretation
tools.

Optionally OpendTect can be extended with (closed source) commercial plugins.

GNU GPL


OpendTect is released under a triple licensing scheme:
1) GPL (open source),
2) Commercial (allows access to the commercial plugins),
3) academic (free plugins for research only).

The GPL license covers OpendTect. The software is released with its source code (C++), is not protected by a license manager, and can be used by anyone, including for commercial purposes, as long as the user accepts to adhere to the GNU/GPL rules.

2D, 3D, 4D
& Prestack Seismic

Analyze 2D, 3D, 4D pre- and post-stack seismic data.

2D & 3D Viewers

Data processing and visualization are rigorously integrated in the OpendTect system. Visualization elements can be moved freely through data space to interactively analyze data from stored volumes, or data that are calculated on-the-fly.


Volume Rendering
& Stereo Viewing

Volume-rendering, stereo viewing and color blending are supported features.

Seismic Attributes


Numerous attributes and filters, math & logic, attributes from attributes are supported in the industry's most powerful attribute engine.

Spectral Decomposition


Spectral Decomposition is used for imaging and mapping temporal bed thickness and geological discontinuities. Algorithms include FFT and CWT.

Movie-Style Parameter Testing
Attribute parameters (frequency, time gate or step out) can be inspected in a movie-style way, to quickly find the optimal settings for your data.

Distributed Computing

Heavy processing of large volumes can be carried out in batch mode on multiple machines and on multiple platforms that can be accessed through the network.
Interpreters can share surveys.



Horizon Tracking

The updated horizon tracker has more user-friendly editing capabilities and is more robust due to the new step-wise tracker functionality.



Faults

Fault planes and fault-sticks sets.

Well-Tie

The synthetic to seismic well-tie module enables the interpreter to tie wells to seismic.
-Synthetic seismogram
-Check-shot correction
-Additional stretch & squeeze
-Updated depth/time model
-Statistical wavelet extraction
-Deterministic wavelet extraction




Time to Depth conversion

Use an existing velocity model, or create one with the new Volume Builder.

Supports: on-the-fly TD conversion of display elements and batch processing of volumes.

Geobodies

Insert an iso-surface in a volume rendered cube and save it as a geobody.

Manually draw 3D bodies.

Madagascar Processing

OpendTect has a generic user interface to Madagascar, the open-source software package for geophysical data processing and reproducible numerical experiments.

GMT Mapping

Via the link to the open-source GMT package you can create within the OpendTect UI scaled maps of OpendTect results.

GapDecon

A multiple removal tool through prediction error filtering. Auto-loaded in OpendTect base. (Sponsored by Addax)









HorizonAttrib

The Horizon attribute allows surface (horizon) data to be combined with cube data for calculations. Auto-loaded in OpendTect base.








Annotations

Annotate seismic data with text-boxes, hyperlinks, (lap-out) arrows, and images. Auto-loaded in OpendTect base. (Developed as part of OpendTect SSIS; sponsored by Shell, BG-group, Statoil, TNO)


MatchDelta

Trace cross-equalization functionality that is used to correct small misalignments in 3D seismic volumes prior to further analysis. It is typically used to align time-lapse seismic data, multi-azimuth stacks or angle stacks (Residual NMO correction). Auto-loaded in OpendTect base.