oa Adaptive Forecasting of Work-Over Technique and Enhanced Oil Recovery Method Efficiency

The development of modern drilling, production, and geophysical measurements outruns existing technologies for analyzing the information obtained from these studies and for forecasting the reservoir development process based on this analysis. This paper suggests one possible way to correct such situation. The developed approach is based on the adaptive geological-hydrodynamic model of oil fields or reservoirs. Its fundamental difference from the traditional deterministic approach lies in the fact that the adaptive model never changes the initial data, but allows one to change its mathematical apparatus, adjusting to these data. As the mathematical apparatus in the adaptive model, the integrated fuzzy logic schemes are used. The adaptive model is not simplistic, it is complex and requires the same run time as the deterministic model. The novelty of this paper is that an alternative approach to geological-hydrodynamic modeling is suggested that is more adequate to the available information. The constructed adaptive models have shown their capabilities for the conditions of many oil fields and reservoirs. The results of predicting the efficiency of work-over techniques and methods of enhanced oil recovery in those fields and reservoirs based on the new adaptive approach are presented and analyzed in this paper.