Seismic Inversion

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CGG GeoConsulting utilizes a variety of different seismic inversion techniques. The appropriate technique is determined by the complexity of the geologic conditions, the customer’s reservoir characterization goals and the data available. Feasibility studies centered at a well location give us insight into which inversion methodology will best show a reliable separation of the target lithofacies and model the appropriate reservoir thicknesses.

Deterministic Seismic Inversion

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CGG GeoConsulting has significant expertise performing true 3D multi-channel, layer-based stratigraphic inversions. Our inversion schemes are particularly effective in poor signal to noise ratio areas. Seismic inversion provides cubes of elastic properties that can be interpreted in terms of reservoir lithology, facies probability volumes and fluid content using our Lithology Classification Workflow.

Stochastic Seismic Inversion

Our stochastic inversion workflows generate multiple high-frequency models for high-resolution reservoir characterization and uncertainty analysis. They address the band-limited nature of deterministic inversion methods and integrate well data and seismic data at a fine scale within a stratigraphic geomodel framework. The numerous realizations of the stochastic inversion can be ranked and interpreted in terms of lithology and porosity uncertainty and ultimately used as input to reservoir modeling.

4D Seismic Inversion

CGG GeoConsulting has developed a 4D inversion workflow extending the 3-D simultaneous elastic inversion to joint multi-vintage inversion, with simultaneous inversion of all angle stacks for base and monitor surveys. Used to image and analyze reservoir changes in pressure and fluid saturation to optimize hydrocarbon recovery.

3D/4D Petrophysical Inversion

Based on a petro-elastic model (PEM), petrophysical inversion simultaneously integrates all subsurface information to provide reliable, quantitative, fine scale descriptions of reservoir properties. It provides a direct link between seismic data and reservoir modeling, as it is applied on a geo-cellular model filled with rock properties in depth. This process directly inverts for cubes of reservoir properties such as porosity and saturation, rather than acoustic impedance and Vp/Vs changes.

CGG GeoConsulting seismic inversion workflows ensure that the seismic contribution to the reservoir model is optimized and history matching is performed taking into account the impact of seismic and subsurface uncertainties on the production forecasts.

Powered by Jason and HampsonRussell technology, along with proprietary and industry standard tools, we can add value to your reservoir model.

Petrophysical Seismic Inversion over an offsh...

Thierry Coleou | Fabien Allo | Olivier Colnard | Ingrid Mach...
©2012 EAGE

The value of broadband seismic data for reser...

Lucia Levato
©2015 Oil Review Africa

Benefits of Broadband Seismic Data for Rock P...

Loic Michel | Yves Lafet | Philippe Doyen | Adrian Smith
GeoConsulting - Reservoir Petrophysics

Reservoir Petrophysics

We link elastic and petrophysics properties to extract more value from seismic volumes.

Offshore - BroadSeis AVO & Inversion

BroadSeis AVO & Inversion

The low frequencies achieved by BroadSeis deliver stable inversion results, even away from existing wells making lithology prediction more reliable
GeoConsulting - Lithologies

Lithologies and Facies Classification

Defining rocks of interest and building a better understanding of the depositional environments.

GeoConsulting - Fracture Characterization

Fracture Characterization

Characterizing fractured reservoirs from seismic volumes.

GeoSoftware - Geostatistical Inversion

Geostatistical Inversion

Generate multiple predictions of fine detail within a reservoir, each honoring the known input information from well logs and seismic.
GeoConsulting - Reservoir Monitoring

Reservoir Monitoring

Realize the full value of your 4D data with petrophysically constrained inversions. Gain insight into fluid movements and geomechanical effects. We are time-lapse data experts.
GeoConsulting - Geophysical Services (SRC)

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