ИСТИНА

Bogatkina U.G., Bochkareva T.U., Eremin N.A., Panarin A.T. About one method efficiency estimation on large field development // International сonference "Problems of complex development and production of hard-accessible oils and natural bitumens (production and refining)". Abstracts, October 4-8, 1994, Kazan, p. 236. WR-12 ON NOVEL METHOD OF THE EFFICIENCY ESTIMATION OF OIL FIELD DEVELOPMENT AT THE LATE STAGE T.Yu. Bochkareva, N.A. Eremin, A.T. Panarin, Yu.G. Bogatkina Oil and Gas Research Institute of Russian Academy of Sciences, Moscow, Russia The management of such complicated process as oil field development requires the creating of novel mathematical models which allow to predict the oil performance. In the proposed method four main aspects of the reservoir state are considered - geological, technological, economical and environmental. The significance of each investigated geological-physical parameters for Romashkinskoe areas is estimated on a basis of the probabilistic - statistical methods. Romashkinskoe areas were grouped by the criterion of Wilkonson as objects of an integral geological-physical structure. The following parameters were considered for an estimation of efficiency of the reservoir technology: depression; re-pressuring; density of well pattern; ratio of number of injection wells to number of production wells; average well injectivity. The level of the above-listed parameters with the production decline rate was estimated from the statistical information of 30-years of the Romashkinskoe field development. The economical data were also examined. The economical and environmental evaluations of development of Romashkinskoe areas were performed by using of fuzzy sets theory. The multi-criteria of the approach was allowed to outline the complex character of the reservoir working and to investigate the reserve of increasing oil recovery.