BONDARENKO, PETR A., KAROGODIN, YURI N., KONTOROVICH, V.A., Institute of Oil and Gas Geology, Novosibirsk, Russia; and PINOUS, OLEG V.*, Inst. of Earth, Oceans and Space., Univ. of New Hampshire, USA
Abstract: Integration of Seismic, Sequence Stratigraphic, and Structural Modeling Techniques to Improve Petroleum Play Prediction in the West Siberian Basin, Russia
The West Siberian basin is the richest petroleum
province of Russia in terms of size and reserves. However, the largest
percent of petroleum reserves from structural traps has been significantly
depleted, and exploration priorities are being reoriented toward smaller
stratigraphic and combination traps which collectively represent a significant
total volume. Exploration of these plays can be significantly improved
by the use of multidisciplinary data. In this study we integrated seismic
and sequence stratigraphic data with the results from experimental structural
modeling to improve the prediction of petroleum plays and reservoir characteristics.
Experimental modeling methods include: 1) Examination of strain field geometry
in elastic multilayered material (with different densities) by optical-polarization
method; and 2) Modeling of post-depositional structure development in unlithified
marine sediments.The experimental conditions are determined according to
the real physical parameters of the geological sections such as density,
rigidity, and viscosity.The parameters are interpolated from seismic and
drilling data and corrected for scale differences. The results of experimental
modeling provide an understanding of various postdepositional deformations
of lithified and unlithified sediments. Subsequent application of experimental
data to seismic and sequence models usually leads to important corrections
of the initial interpretations improving our visualization of subsurface
geometries and potential traps. In addition, it helps to predict zones
of faulted and fractured reservoirs.The concept has been successfully applied
to identify potential traps in unexplored regions of West Siberia and to
expand existing plays in mature parts of the basin (e.g. Novomolodezhnoe,
Priobskoe Fields and others).
AAPG Search and Discovery Article #90923@1999 International Conference and Exhibition, Birmingham, England