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SeisRP facilitates analysis of the relationship that reflectivities, relative properties and absolute rock properties have with reservoir properties (porosity, lithology and pore fluids).
Analysis at well-log resolution
- Analysis of the relationship that reservoir properties have with elastic properties. The seismic equivalent of the evaluated rock properties is obtained through AVO analysis and seismic inversion.
- The module computes and evaluates:
- Absolute properties, relative properties or reflectivities
- Modeled or measured elastic properties.
- Analysis can be done in depth or two-way time and at well-log or seismic resolutions.
Analysis at seismic resolution
- A time-depth relationship is created by integrating the sonic log.
- A user selected wavelet defines the bandwidth of the synthetic gather and attributes.
- Rock properties, relative properties and refectivities are mapped to two-way-time and displayed at seismic resolution
- Scatter-plots of the selected seismic attributes colored by pay-flag are part of the analysis at seismic resolution
Fluids’ analysis
- Changes in elastic moduli and density of fluids modify the seismic response
- Well-bore environment (pressure and temperature) and fluids’ composition (gas specific gravity, oil API, live oil GOR and brine salinity) are used to compute moduli and densities of each of the fluids.
- Moduli and density of three fluids are defined: in-situ, replacement and brine
- Fluids (hydrocarbon and brine) are analytically mixed to obtain the fluids’ properties as a function of fluid saturation.
- Fluid substituted rock properties’ logs and synthetic seismic can be analyzed after the fluid properties have been defined