The choice of a method of dual completion exploitation for increased production and accelerated development of multi-layer deposits

Based on laboratory studies, the article substantiates the scope of application, efficiency, reliability and the possibility of maximum extraction of oil reserves from multi-layer oil and gas horizons with a large depth of occurrence, composed of weakly cemented rocks. The methodology for the design of gas lift lifts, including the arrangement of starting and working valves, in accordance with standard ones, taking into account the properties of reservoir fluids and projected well flow rates, is also presented. To a large extent, gas formations overlap oil formations by area, which creates favorable conditions for the implementation of the method of dual completion (DC) of oil and gas facilities by one well. Since most of the discovered fields contain several productive layers or horizons, the number of grids of production and injection wells, as well as flow rates, permissible depressions, the cost of producing tons of oil and other indicators depend primarily on the correct allocation of objects; consequently, the amount of material costs for drilling and operation of the field. Based on the results of the conducted research, the justification of the choice of downhole equipment was carried out, taking into account the need for dual completion (DC).