METHOD FOR MONITORING THE OIL-FIELD DEVELOPMENT

The invention relates to the oil industry, in particular to methods for monitoring the development of oil fields. In order to increase the monitoring efficiency of the oil field development by the fuller recording of parameters that characterise a deposit to be developed, for hydraulically unrelated areas with equal values of a desirability functions, the method involves additionally measuring the stability of a water-oil emulsion in each well, calculating the mean value of the water-oil emulsion within each area and advising the use of methods for increasing oil recovery at the areas according to the incrementation of the water-oil emulsion value. In order to determine the hydraulically unrelated areas, the method involves measuring a formational pressure, the viscosity of formation fluids and the relative phase permeability of oil and water, building maps of pressure fields and maps of fields of filtering and penetration rates and superimposing the maps of pressure fields on the maps of fields of filtering and penetration rates. The desirability function values of the methods for increasing oil recovery are calculated for each area according to the multidimensional equation the dependence thereof on the number of production and injection wells, permeability, layer and zonal heterogeneity, output rate, water cut and the water withdrawal rates of the wells of the area. For a specific well, it is recommended to use the methods for increasing oil recovery until the maximum value of the oil-water emulsion is achieved and stabilized. The claimed method makes it possible to select areas for using the methods for increasing oil recovery with the equal mean values of the desirability function at the hydraulically unrelated areas taking into account the influence of formation stimulation methods. L'invention concerne le domaine de l'industrie pétrolière et, en particulier, des procédés de surveillance de l'exploitation de gisements pétrolifères. En vue d'accroître l'efficacité de surveillance de l'exploitation de gisements pétrolifères par l'enregistrement plus complet de paramètres caractérisant un gisement à exploiter pour des zones sans rapport d'un point de vue hydrodynamique avec des valeurs égales d'une fonction de désirabilité, on mesure en outre la stabilité d'une émulsion eau dans l'huile dans chaque puits, on calcule la valeur moyenne de l'émulsion eau dans l'huile dans les limites de chaque zone, et on recommande l'utilisation de procédés permettant d'a