The 60 or so clever enough to locate the OpendTect breakfast meeting in the labyrinth of the Paris exhibition witnessed growing support for the ‘open source’ seismic interpretation system from de Groot-Bril (dGB). dGB claims over 3,000 downloads of the software in the past seven months.
OpendTect and its source code is free for research and educational purposes. Commercial use is subject to a ‘modest’ maintenance fee. OpendTect now supports multi-volume seismic attribute and neural network analysis, spectral decomposition, reservoir characterization and other applications. It also features multi-platform distributed computing on any combination of Linux, Solaris, Irix and Mac-OS/X. Windows (2000/NT/XP) is currently supported as stand-alone processor.
Statoil reported that its company-wide license for OpendTect is routinely used for fluid migration path studies (chimney cubes) and fault cubes. The software is also popular with Statoil interpreters for seismic facies analysis and for noise suppression by dip-steered median filtering. Statoil has also integrated proprietary technologies for dip steering and neural network-based seismic analysis into the environment. Maersk Oil also showed a fluid migration path study where chimney cube results were linked to seismic facies.
dGB’s GDI inversion technology is being integrated into OpendTect and plug-ins from vendors including ArkCls and Erm.s are also being developed. A joint industry project, with support from Statoil, BG Group and the Dutch taxpayer, is under way to develop a sequence stratigraphic module.
ArkCls showed how its IDEAL data exchange server (an OpenSpirit clone) is used to access vendor data stores. The company presented its Seismic Spectral Blueing module - which is claimed to maximize resolution by shaping the seismic spectrum to the reflectivity log. The blueing module, and ArkCls’ seismic colored inversion are both available as OpendTect plug-ins. Paris-based GeoSole showed how OpendTect could be used to analyze ground penetrating radar data for geotechnical studies, with an example from a survey over the Roland Garros tennis courts!
ERM.S’ Geodesis project uses random geometry theory and morphological segmentation to provide seismic pattern recognition and attribute processing solutions. OpendTect will be used to deliver a Geodesis toolbox for clients.
OpendTect has hit a sweet spot with universities around the world. Several research initiatives are underway investigating coherency (Curtin University) fracture detection (Oklahoma), automatic seismic classification (Tromso), 4D seismic applications (Rio de Janeiro) and others.
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