We are now able to predict stratigraphy and lithology at reservoir and exploration scales with previously unattainable accuracy. This was accomplished though the development of a new technology, stratigraphic inverse modeling. With stratigraphic inverse modeling, we can minimize the risk factor in exploration and production drilling by making accurate stratigraphic predictions.
Although the new technology is in its infancy, it is likely to expand rapidly. Currently, we have a 2-D model for siliciclastic continental to shelf environments and a 3-D carbonate model.
We have a 3-D fluvial model nearly complete and are working on a 3-D deepwater (turbidite) model. We seek companies or research sponsors who wish to apply these models to their own exploration, production or research projects. We are interested in leasing models as a means of supporting our continued research and development of stratigraphic inverse models. We also are interested in contracting our services for application of either forward or inverse stratigraphic modeling on company projects, or in training company personnel in this new technology.
How can these models help with production and exploration projects? The models are applied to problems where accurate, high-resolution stratigraphic prediction with calculated uncertainty (risk) is the goal.
Exploration
mode Using only a few wells, the models may be used
to predict stratigraphy in portions of a basin where well control is lacking
and/or seismic reflections are ambiguous indicators of stratigraphic change.
Production
mode At the reservoir scale, they may be applied to predict 3-D facies
distributions, connectivities and volumes between wells, while matching the
geology at the observation wells. They may be coupled with a fluid inverse
model to further reduce uncertainty and increase accuracy of predictions.
Predicted stratigraphy can be used as input to flow simulation models.
Seismic
integration and analysis The simulations are useful in analysis of
seismic data by diagnosing facies distributions within a 2-D or 3-D seismic
grid that are visualized only as geometries on seismic data. The models are
of much higher resolution than seismic images. A correspondence of geometry
between the stratigraphic model and the seismic image enhances confidence
that the predicted stratigraphy is correct. Predicted stratigraphy may be
converted into an impedance model and used to create synthetic seismic profiles.
Basin
analysis mode The forward and inverse model pairs may be used to build
a basin stratigraphy which is the input for a maturation/migration basin exploration
model.
If you are interested in one or more of these possibilities, and/or of learning more about stratigraphic prediction through inverse modeling, please contact me at your convenience.
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Last modified 1/18/00