Reservoir Synthetic Modeling
Forward Modeling to Generate Prestack Synthetics from Geological Models
Reservoir synthetic modeling takes a 3D reservoir model containing rock properties such as saturation, porosity, and mineral volumes and converts them to compressional velocity, shear velocity, and density using a rock physics model. The elastic model is then used to generate synthetic seismic cubes through the Zoeppritz transformation.
Geological data
Input data consist of interpreted seismic horizons, borehole data including well logs, deviation surveys, borehole seismic data, petrophysical logs, and ancillary data such as test results and core analysis. Input data is upscaled and used to build the reservoir model.
Rock physics modeling
Relationships are established between the physical rock properties used to populate the model and compressional velocity, shear velocity, and density at well locations. The rock physics functionality of the integrated rock physics modeling is used to provide a standard suite of rock physics models—or to model, evaluate, and design tailor-made, reservoir-specific models.
Acoustic modeling
The reservoir model is updated to include intermediary acoustic and elastic properties, such as fluid and mineral specific material moduli, computed at the 3D grid location by surface-consistent well log interpolation). The reservoir model is converted to compressional velocity, shear velocity, and density using the established rock physics relationships. Alternately, low-frequency compensation is used to interpolate the acoustic properties from the well logs. Acoustic modeling is performed through the Zoeppritz formulation. The interactive interface enables control over the origin of the input acoustic properties, overburden parameters and modeling to surface, angle band ranges, wavelet types (statistical to extracted), and anisotropy parameters.
Forward and inverse modeling and generation of geostatistically consistent high-frequency reservoir models.
Ensuring seismic data is in the best possible condition for velocity analysis, inversion, and integration of seismic attributes into the reservoir characterization workflow.
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