The article discusses the process of creating and using technical-economic models for optimization of pumping well stock, starting from the modeling of power consumption by the artifitial oil lift taking into account the main influencing factors, and ending with the construction of a general cost model of profitability of wells operation, allowing to define optimum modes of wells operation from the point of view of economic efficiency.
We shown the main disadvantages of common approaches to the calculation of the target bottom-hole pressure based solely on geological and technical limitations, and provide a methodology for determining optimal modes of extraction wells on the criterion of maximization of economic efficiency. Building technal-economic models are based on existing field information on the operation of the pumping well stock, estimation of the calculated and actual energy consumption. The main result is the final cost models of producing well operation. On the basis of these models the evaluation of the optimum operation of the production wells on the criterion of maximizing cash flow is made.
The proposed method allows to determine the most cost-effective mode of operation (optimal bottom-hole pressure) for each pumping well to maximize cash flow from the development of the field as a whole. It opens new possibilities for improving the efficiency of operation of high water-cut low-profit and unprofitable wells.
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