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Integrated approach for well and seismic velocities
Display well and seismic velocities together to visualize common trends. Decide which velocity function fits your layers best. Velocity parameter maps of V0, k or Vint help understanding the horizontal trends of velocities. Midpoint vs interval velocity crossplot helps assessing layer continuity. NEW function types available.
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Enhanced options to calibrate seismic and well velocities
Define a seismic velocity calibration strategy to well velocities for each layer. Use interval velocity crossplots to estimate anisotropy factors, which can be mapped within the tool or assign any external contoured calibration map. Compute an anisotropy trend function. There is no need to build a 3D geo-cellular grid in order to calibrate seismic velocities.
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NEW Stacking velocities detrending workflow
Detrending allows to create a trend velocity map based on an interval velocity vs. layer TWT thickness trend. The user has the option to compare a final detrended velocity map with well velocities and compute a linear relation to scale the seismic velocities.
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Easily access and visualize relevant velocity data
Access all wells in a project that have active assigned TDR objects. Seismic velocities can be accessed as point data or as seismic volumes. A smart decimation process enables reduction of the amount of seismic velocity locations. Quality check and decimate large amounts of velocity data within a few clicks.
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Several useful tables are available for QC purposes
Tables provide useful information about velocities, TWT, depth values at every crossing point between surfaces, layers and wells. They help locating fundamental data input problems. The tables can be directly shared with external applications, like MS Office for example.
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Various output options for QC and depth conversion
Generate intermediate or final results to validate velocity model parameters. Save interval or average velocity cubes and depth convert 3D seismic, interpretation, faults, surfaces, points and polygons. All output data objects can be shared within Petrel.
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NEW velocity functions available
Choose between nine different velocity options to model interval velocities within a layer, including the ability to import external velocity maps. Compute pseudo-interval velocities and pseudo V0 velocities, optimized for minimum residuals at the bottom of the active layer. Create control points manually to define extrapolation far away from wells.
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Analyze and apply residual values
Get immediate feedback on the residuals for each horizon after depth conversion. Create a simple residual correction map to adjust deph-converted horizons to the markers or alter interval velocities in each layer to minimize the residuals in the advanced mode
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Velocity model building
Generate a velocity model from well velocities, calibrated seismic velocities, including optimized depth residuals velocity adjustments, like the example in the image. Use this model for general depth conversion in RVEL or as input for further processes in Petrel
Supporting Documents
Installation Guide
Release Notes
User Manual
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