Application Analysis of Flow-Deflecting Technology Based on a Biopolymer System

Abstract

Annotation. At present, many oil fields are on the third and fourth stages of development, which are characterized by significant volumes of associated water production and low degree of depletion of oil reserves from individual sections of the deposit. The volume of oil produced from the deposits is constantly decreased. This is due to the influence on the operation of wells of complex geological structures of productive formations, and fluid compositions that manifest themselves in production processes. In dense reservoirs with high geological heterogeneity, separate undeveloped areas and areas that are not covered by flooding remain in the development process. In these conditions, in order to increase the efficiency of flooding systems, the task is to maximize the coverage of reservoirs by exposure, which can be achieved by introducing water into low-permeable oil-saturated intervals. In this case, the elastic-capillary-cyclic method and the method of changing the direction of filtration fluid flows in the reservoir have significant possibilities, both in area and in the section. In this case, the elastic-capillary-cyclic method and the method of changing the direction of filtration fluid flows in the reservoir have significant possibilities, both in area and in section. One of the most effective and promising methods of stabilizing oil production is physics-chemical technology based on the application of injection of polymer compositions. This paper provides an analysis of the application of the technology of redistribution of filtration flows in a multilayer field. This technology used a biopolymer-based chemical composition. To study the effect of the biopolymer system on the oil production process, an analysis of changes in the technological parameters of the reacting production wells was carried out. The article provides an assessment of the technological effectiveness of methods for changing the direction of filtration flows in the reservoir based on the analysis of the results of the use of biopolymer compositions at one of Mangystau deposits. Keywords: Well, oil deposit, influence on the formation, flow-deflecting technology, filtration flow, polymer composition, biopolymer system, efficiency