Plug-in for petrophysics use
dGB Earth Sciences BV, Enschede, Netherlands, and Buenos Aires-based Geoinfo SRL have launched a new OpendTect plug-in for the incorporation of petrophysical properties into the seismic interpretation process.
The computer log analysis software (CLAS) plug-in, developed by Geoinfo and through which well log petrophysics can be performed within dGB's OpendTect rather than having to be imported, is designed to deliver improved well-to-seismic ties, enhanced calibration of seismic attributes to reservoir properties, more robust models, and accurate interpretation of 3D seismic data.
With CLAS, seismic interpreters can edit well logs and generate information on oil in place through data on the saturation, clay volume, porosity, lithology, and fluid content of the reservoir. CLAS will also allow net pay to be estimated from seismic attributes and will be able to use dGB's neural networks plug-in to generate acoustic logs. The result will be the building of accurate models and improved acoustic and elastic impedance inversion, the firms say.
Features of the plug-in within OpendTect include:
• Simple and advanced log analysis software format data import including well parameters and run information.
• The ability to carry out log calculations, such as temperature curve generation, porosity calculation from cross plots, sonic log editing, and shale volume calculations.
• Water saturation analysis.
• The ability to generate accurate petrophysics-based reports.
CLAS and OpendTect will allow interpreters to better understand relationships between well log data and seismic and between seismic data and reservoir properties, such as saturation, clay volume, and porosity and create a more complete picture of the reservoir.
In addition to the CLAS plug-in, other available plug-ins relate to attribute and processing analysis, horizon mapping, sequence stratigraphy, fluid migration, rock property predictions, and velocity modeling.
Source: dGB Earth Sciences BV, Nijverheidstraat 11-2, 7511 JM, Enschede, Netherlands.
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