Multivariate Data Base for the Solution of Geologic Problems in Exploring for Oil and Gas in West Siberia

SHPIL'MAN, VLADIMIR I., and VITALY M. YAKOVLEV, West Siberian Geologic Research Institute, Tyumen, U.S.S.R.

Exploration data bases are distinguished in that many data elements change continuously over geologic time. Also, for maximum practical utility in exploration, the data base must be distributed. The data base developed by Tyumengeologiya on the West Siberian basin is composed of three fundamental elements. The first element covers the overall geologic structure of the basin, including tectonic, stratigraphic, and geomorphologic entities. This contains primary data and the results of analysis, which provide a geologic framework for the other two elements of the data base. The second block contains temporally stable data (e.g., identification numbers for wells, reservoirs, fields, etc.). The third block provides the mechanism for updating the other blocks with the newest observations fr m wells, laboratory analysis, seismic, and other sources. Ability to update not only primary data, but the tectonic and stratigraphic framework in the first block, is the key to successful, practical operation.

There is a large degree of coincidence between the principles and architecture of the data base developed in West Siberia and those used by western oil and gas companies. This extends not only to the interdependence between elements of the data base, but also reflects a common understanding of the nature of the geologic problems that are analyzed through the use of computer data bases in the exploration for oil and gases.

AAPG Search and Discovery Article #91004 © 1991 AAPG Annual Convention Dallas, Texas, April 7-10, 1991 (2009)