地震目标检测系统

OpendTect软件是荷兰dGB公司研发的一个地震目标检测系统，集层序地层解释系统、倾角导向、地震颜色反演等功能为一体，可同时对多个地震属性体进行处理、可视化和解释。其中最具特色的技术是倾角导向和层序地层解释系统。

　　该软件利用倾角导向可直接生成导向体，导向体包含空间每一个采样点的倾角和方位角信息，在多道属性处理及滤波时利用导向体来充分考虑地质目标体的空间展布，从而提高目标体及断裂检测的精度。

　　此外，运用倾角导向功能还可自动追踪年代地层事件，进而进行沉积体系域解释，帮助研究人员更直观、更深刻地理解地层沉积演化过程。

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.

代码

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