Blueback Rocks Velocity

Efficient and versatile velocity modeling.

Blueback suite for velocity modeling

Transparent and reliable velocity model building for interpreters.

Faster and more accurate results

Building a velocity model is a critical step in time‑to‑depth conversion and reservoir characterization. It requires clear insight into the data and confidence in how velocity parameters are derived and applied.

The Blueback suite supports interpreters with transparent and structured workflows for velocity model building, helping them analyze velocity information in a consistent and traceable way.

Clear workflows for complex velocity analysis

Time‑to‑depth conversion is often considered one of the more challenging interpretation workflows. A key requirement is the ability to analyze well and seismic data reliably and understand how velocity trends are established.

Blueback Rocks Velocity extracts velocity parameters and seismic information from both well data and seismic data. This enables interpreters to build velocity models based on consistent inputs and documented assumptions.

Integrated tools for insight and confidence

The Blueback suite is fully integrated, allowing interpreters to visualize velocity trends, evaluate data quality, and understand the impact of modeling choices throughout the workflow.

By making each step explicit and transparent, the suite supports accurate domain conversion and increased confidence in the velocity model used for interpretation and decision‑making. The technology has been developed in line with specifications provided by a major operator in the North Sea.

Seismic velocity calibration

Define several velocity functions

Detrending seismic velocities

Optimize depth residuals

Horizon consistent dix

Dynamic velocity model building

Rocks_velocity_Seismic_velocity_calibration

Blueback Rocks Velocity allows interpreters to choose between several methods to calibrate seismic velocities against well velocities.

Rocks_velocity_Define_several_velocity_functions

Define the most appropriate velocity function for each layer, visualizing interval velocity maps as you change parameters.

Rocks_velocity_Detrending_seismic_velocities

Produce detrended and scaled interval velocity maps using seismic interval velocities as input.

The depth optimization step lets the user analyze depth residuals and define a strategy to adjust velocities to minimize residual values.

Blueback Rocks Velocity features computing of horizon consistent interval velocities from root-mean-square velocities (Vrms).

Rocks_velocity_Dynamic_velocity_model_building

Enhance the creation of velocity cubes to depth convert 3D seismic , interpretation faults, surfaces, points and polygons.

Calibrating seismic velocity

The Blueback Rocks Velocity tool allows interpreters to choose between several methods to calibrate seismic velocities against well velocities.

Reduced time spent on velocity modeling
No need to build a complex 3D grid model
Improved quality control

Velocity analysis

Transparent and interactive workflow to define the most appropriate velocity function for each layer, visualizing interval velocity maps as you change parameters.

Several velocity model functions available
Meaningful and consistent velocities
Reliable and accurate results

Detrending

Produce detrended and scaled interval velocity maps using seismic interval velocities as input. The results can be saved in the Petrel* E&P software platform tree as surface attributes.

Interactive workflow
Integrate detrended results in velocity model building
Alternative workflow for seismic velocities

Optimized residuals

The depth optimization step lets the user analyze depth residuals and define a strategy to adjust velocities to minimize residual values.

Map oriented, simple, or advanced methods
Closer residual values to reference markers
Crucial aspect of velocity modeling

Horizon consistent Dix

This tool features computing of horizon consistent interval velocities from root-mean-square velocities (Vrms). The results can be saved as surface attributes, point-sets or seismic volume and used as direct input.

Based on Dix approximation (1955)
Following the horizons above and below
Accurate and fast method

Depth conversion

The Blueback Rocks Velocity tool enhances the creation of velocity cubes to depth convert 3D seismic, interpretation faults, surfaces, points and polygons.

Generate outputs as required
Scalable with your hardware
Directly use results in Petrel processes

Petrel * is a mark of SLB

Below you’ll find the most common questions gathered to make it easy for you to find what you’re looking for. Click a question to read more.

What is the Blueback suite used for in velocity modeling?

The Blueback suite is used to support velocity model building and time‑to‑depth conversion through transparent and structured workflows. It integrates well data and seismic data to help interpreters analyze velocity trends and understand how velocity parameters are derived and applied.

How does Blueback Rocks Velocity support velocity model building?

Blueback Rocks Velocity extracts velocity parameters and seismic information from both well data and seismic data. This allows interpreters to work with consistent inputs, visualize velocity trends, and document assumptions throughout the velocity modeling process.

Why is transparency important in velocity modeling workflows?

Transparency is important because velocity models directly influence depth conversion and subsurface interpretation. Clear and traceable workflows help interpreters assess data quality, understand uncertainty, and build confidence in the velocity model used for further analysis.

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Blueback Rocks Velocity

Blueback suite for velocity modeling

Clear workflows for complex velocity analysis

Integrated tools for insight and confidence

Key features

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