Sequence Stratigraphy

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It is well known that there is a world-wide decrease of unexplored easy-to find structural traps. Consequently, we must turn our attention to subtle petroleum reservoirs such as stratigraphic traps, traps below unconformities, and those related to paleo-geomorphological features. These subtle traps require an overall more detailed analysis, thus increasing the need to extract more information from seismic data. One of the tools at hand, seismic sequence stratigraphy, has proved to have a great predictive potential for lithology and consequently reservoir, source rock and seal potential.

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OpendTect plugins

SSIS

The SSIS (Sequence Stratigraphic Interpretation System) plugin offers unique capabilities for sequence stratigraphers to analyze seismic data and to unravel the depositional history of sedimentary sequences. SSIS allows you to extract more information in a shorter time.

Chronostratigraphy, Systems tracts and Wheeler transforms are some of the features of SSIS.

Dip-Steering

Dip & azimuth maps are essential for visualization of paleo-geomorpological features, which are the first step towards a lithology prediction. Also unique attributes such as volume-curvature and variance of the dip are useful tools to extract subtle information from the data. Finally, dip-steering is used in the calculation of the data-driven chronostratigraphy (SSIS plugin)

Dip attribute reveals submarine channels, and sand ridges

Neural Networks

The aim of unsupervised segmentation is to detect geologically meaningful patterns (3D bodies or 2D horizon-based areas) by visualizing patterns with similar seismic responses. The results increase our understanding of lithological variations that are for example due to sedimentary processes, depositional settings. The unsupervised approach provides an unbiased view of the data.

This example shows a Seismic facies cube. The 3D objects represent similar seismic attribute responses, which are interpreted as channel deposits.

GMT

GMT is an open source collection of approx. 60 tools for the manipulation of geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and the production of Encapsulated PostScript File (EPS) illustrations ranging from simple x-y plots via scaled contour maps to artificially illuminated surfaces and 3-D perspective views.

Software Requirements: see this Matrix

Services

dGB offers complete seismic sequence stratigraphic interpretation studies, that include:

Chronostratigraphic horizon tracking
Wheeler transformed seismic data (2D and 3D)
Full systems tracts interpretations
Seismic facies mapping
Attributes analysis for visualization of Paleo-geomorphological features
Etc.

For a tailor made sequence stratigraphic study please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

SSIS 3 Development project

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. Additional sponsors sought!

dGB Earth Sciences

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CCB ChimneyCube Customer Testimonials Coloured Inversion Dip-Steering Fault Sealing & Fluid Migration HorizonCube Licenses Manual MPSI Neural Networks OpendTect Plugins PSDM Publications Spectral Blueing SSIS training Tutorials Universities VMB Workstation Access

SSIS

Dip-Steering

Neural Networks

GMT