OpendTect SSIS Consortium
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1. Introduction
In 2005, dGB started the SSIS (Sequence Stratigraphic Interpretation System) consortium. The objective was to develop methods and tools to automate seismic sequence stratigraphic interpretation. The SSIS software that was released as an OpendTect commercial plugin in 2007, was the first software system in the market to support computer-aided sequence stratigraphic interpretations. The software supported tracking of chrono-stratigraphic horizons in a 3D seismic volume. The chrono-stratigraphic horizons could further be used to Wheeler transform (flatten) the seismic and to perform systems tracts interpretation. Chrono-stratigraphy in 3D seismic volumes could be created in a model-driven mode (proportional slicing, parallel to upper and lower). A 3D dip-steered horizon tracking algorithm was released but it was known to produce artefacts, hence was not used in earnest. SSIS was a technical and commercial success and the SSIS 2 consortium immediately followed the original consortium. Its aim was to extend and to improve the SSIS technology. In September 2009, OpendTect v4.0 was released. SSIS could now be applied to grids of 2D seismic data. To support SSIS on 3D data it was possible to create a 2D grid from a 3D volume.
Building on the success of the previous SSIS consortia, a permanent SSIS consortium started in 2010. The objective was to extend and to improve the SSIS technology and the underlying chrono-stratigraphic horizon tracker. The main challenge was to develop a 3D tracker that would elevate SSIS from a 2D (grid) application to a true 3D application. During the course of this phase, it was realized that such a 3D tracker has much wider application than sequence stratigraphy only. A 3D tracker affects the entire seismic interpretation workflow and improves geologic model building, seismic inversion, stratigraphic slicing and well correlations. With this in mind, it was decided to take the tracker out of the SSIS module and to release it as a separate plugin, the HorizonCube plugin. Henceforth, SSIS became an add-on to HorizonCube that deals with Wheeler transformations and systems tracts interpretations.
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2. Consortium Concept
3. Active R&D Projects
dGB is currently doing the following R&D work under this consoritum.
To read more, please click on the image.
Presently, OpendTect SSIS (Sequence Stratigraphic Interpretation System) is the only commercial software system on the market that supports computer-aided sequence stratigraphic interpretations. The system was developed in two consecutive multi-client sponsored projects. A coherent set of R&D projects, aimed at improving and extending the SSIS technology, is defined.
4. Dip Steered Tracker
The dip steered tracker is a powerful utility to quickly map the top and base of the reservoir by following the SteeringCube. The utility is a valuable tool especially in regions of less complexity.
Top of Abenaki (Offshore, Sable Island, Canada) pay zone mapped by dip steered tracker.
Check-out the latest developments (Powerpoint)