РЕЗУЛЬТАТЫ ИСПОЛЬЗОВАНИЯ МЕТОДА ПРОГНОЗИРОВАНИЯ ПОКАЗАТЕЛЕЙ РАЗРАБОТКИ ПО ХАРАКТЕРИСТИКАМ ВЫТЕСНЕНИЯ НЕФТИ ВОДОЙ

Abstract

In article questions of the forecast of indicators of development for characteristics of replacement of oil by water with use of methods of material balance are considered. The method of material balance allows to solve a number of problems of development including forecasting of technological indicators. The following data are necessary for forecasting of indicators of development of the oil pool by a method of material balance: initial and average reservoir pressures, volumes of the saved-up and pumped liquid, the water volumes interfering in layer, volume coefficients of oil, gas and water phase permeability, dynamic viscosity of oil and gas. Accuracy of the indicators counted by means of a method of material balance depends on selection of basic data, their full value and from the accepted some assumptions which are been the basis for the settlement equations. It is also possible to predict the current oil saturation depending on the current characteristics of oil and oil, gas and water, and for water drive reservoir on the current average oil saturation is predicted by determining the amount of invading water reservoir. Based on the equations of flow of oil and gas reservoir, the relative permeability is determined. We can assume that this method gives more reliable results, keeping unchanged the existing system and the development of naturally reducing the current selection of the liquid at a late stage.