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Advanced rock physics


RockSI is a powerful tool for exploring the link between rock properties and seismic data for quantitative interpretation and feasibility studies.

The RockSI workflow includes the creation of detailed Petro-Elastic Models (PEMs) and their subsequent calibration with well log data. User-defined PEMs can be used to calculate estimates of elastic properties such as effective bulk and shear moduli, and P-wave and S-wave velocities.

Probability Distribution Functions (PDFs) are specified for the PEM input variables and for uncertain PEM parameters. The input PDFs are sampled using Monte Carlo simulation, and the corresponding elastic properties and velocities are calculated by applying the PEM to each set of simulated inputs.

4D rock physics templates provide the link between dynamic reservoir properties and 4D seismic. Here the PEM-predicted changes in pressure and saturation are displayed as a graduated template in a 4D attribute cross-plot to aid the interpretation of time-lapse inversion results.

In exploration situations where well data are sparse, Monte Carlo simulation is particularly useful to generate training sets for supervised Bayesian classification of lithology with LithoSI. Statistical rock physics can also be used to drive time-lapse fluid classification workflows.

Perform rock physics modeling based on different facies, and interactively check modeled elastic logs by comparing synthetics with actual seismic within the application. You can then display the rock physics model on crossplot as a rock physics template.

Users can adjust variables such as the reservoir’s effective pressure to investigate changes in elastic properties through rock physics templates for various fault blocks or structures. RockSI’s advanced Monte Carlo simulation tool is useful for uncertainty analysis using the rock physics model as input.

All Software Offerings


Produce reservoir studies with a comprehensive suite of reservoir characterization software for geophysical interpretation and analysis.


Address oil and gas exploration and development challenges with advanced technology for seismic inversion and reservoir characterization.


Complement existing E&P workflows with leading-edge interpretation tools, such as 3D visualization, interpretation and volume processing.


Gain greater insight into subsurface rock and fluid properties to locate and evaluate zones in wellbores and quantify their commercial potential.


Understand the link between rock properties and seismic data, and reduce uncertainty in the interpretation of elastic attributes.


Make more reliable drilling cost estimates with comprehensive post-stack velocity modeling that accurately predicts subsurface depth structure.

EarthModel FT

Rapidly build superior geological models while easily incorporating all field data and connecting to flow simulation.

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