Fluid Migration, Chimney Cube, Dip-Steering

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Fluid Migration

In 1998 Statoil asked us to improve the visualization of seismic chimneys to facilitate the interpretation of geo-hazards. Together we invented the chimney cube and the underlying dip-steered, multi-attribute neural network-based object detection technique. This invention led to the development of d-Tect, the pre-cursor of our OpendTect system. Since the first application we have created hundreds of chimney cubes and published more than 50 technical papers on fluid migration, fault seal analysis and seismic object detection.

From the many studies performed in hydrocarbon basins from all over the world we have learned that seismic chimneys are visible in 90% of all Mesozoic and Tertiary basins. It is primarily a question of getting your eye into it.

Publications...

OpendTect Plugins

Neural Networks

We use chimney examples identified by a human interpreter to create a learning set for a neural network. The output of the network is a chimney probability cube (or 2D line set) which we then use to interpret fluid migration paths. Often we are able to follow the fluid migration paths all the way from the source rock into the trap and from its spill-point upwards to the surface.

Dip-Steering

Dip steering is an essential input for the Chimney Cube (e.g. dip-steered similarity, variance of dip, etc..)

Read more about the Dip-Steering plugin

Software Requirements: see this Matrix

Services

We use our chimney expertise to help clients rank their prospects and to perform fault seal analysis. Prospect ranking is based on classifying chimneys and calibration against our database of analogs. We classify chimneys on appearance and on spatial relationships between chimneys, faults and traps. In fault seal analysis we compare chimney cubes with fault (similarity) cubes. The output is a qualitative measure of fault leakage.

dGB Earth Sciences

Nijverheidstraat 11-2 - 7511 JM Enschede - The Netherlands - Tel. +31 (0)53 431 51 55 - Fax. +31 (0)53 431 51 04

1 Sugar Creek Center Boulevard, Suite 935 - Sugar Land, TX, 77478 - USA - Tel. +1 281 240 3939 - Fax. +1 281 240 3944

310, Gateway Plaza, Hiranandani Gardens - Powai, Mumbai 400 076 - India - Tel. +91 22 25704984 - Fax +91 22 25704977

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 Webinars Workstation Access

Neural Networks

Dip-Steering