Seismic - Technology
Seismic reservoir characterization
Traditionally, seismic data is used to develop geologic models of structure and stratigraphy. This interpretation process is qualitative in nature. Quantitative interpretation of reservoir properties uses seismic amplitude information to infer rock and fluid properties. The necessary calibration information comes from well-data, which has to be carefully and closely integrated with seismic.
Seismic reservoir characterization is driven by close integration of seismic and well log data within a rock physics framework.
At RSI, we provide a full range of consulting services for seismic reservoir characterisation. Deliverables include well-based rock-physics and seismic models, seismic data pre-conditioning, inversion for lithology and fluid prediction and seismic facies modeling. Projects range in size and complexity from modeling of a single well to complete reservoir characterization programs involving multiple wells and 3D or 4D seismic.
Rock-Physics and Seismic Modeling
Whenever well data is available, RSI recommend that a comprehensive modelling study is undertaken prior to inversion.
RSI has pioneered the use of well log based rock physics and seismic models to develop a thorough understanding of the relationship between reservoir properties and seismic data before use of advanced seismic inversion methods. Our well based seismic models allow us to quantitatively answer fundamental questions, such as how porosity changes are related to the pre and post stack seismic response, before the use of interpretation methods such as Impedance inversion, AVO analysis and neural network classification.
Effect of fluid saturation on Acoustic Impedance, Poisson’s Ratio and Synthetic Gathers
Our iMOSS modeling technology, which incorporates both isotropic and anisotropic modelling, links elastic measurements directly to rock and fluid properties via the world's most comprehensive database of rock physics relationships.