ЭКОНОМИЧЕСКОЕ ОБОСНОВАНИЕ ОПТИМАЛЬНОГО ЗАБОЙНОГО ДАВЛЕНИЯ ДОБЫВАЮЩЕЙ СКВАЖИНЫ

Abstract

Background\nThe question of the feasibility study of optimal bottomhole pressure corresponding to the maximum flow rate for oil producing wells today is quite relevant. This is due to the fact that in addition to the positive side associated with the increase in daily oil production, there is also a negative one - an excessive decrease in bottomhole pressure, which causes oil degassing in the bottomhole formation zone, which, in turn, affects the productivity of the production well. The consequence of both sides is the change in economic indicators, in particular the increase in the cost part. In this regard, there is a need for an economic assessment of the predicted technological mode of the production well.\nAims and Objectives\nTo assess the economic efficiency of operation of producing wells by various standard sizes of pumping units at bottomhole pressure values determined by a calculation method.\nResults\nThe method of estimating the economic benefits obtained by optimizing bottomhole pressure is considered. The existence of a downhole pressure area is shown, which allows to obtain the maximum benefit. The article describes examples of the operation of well sucker-rod pump units with different performance characteristics on wells with the same reservoir parameters. Based on the magnitude of the change in the economic gain obtained when the depression on the reservoir changes, it has been proposed to calculate the difference between the net cash flows obtained for the year for each calculated value of bottomhole pressure. Then the criterion for choosing the optimal bottomhole pressure at the well will be the maximum difference with variation between the variants. For the considered examples, dependences were constructed reflecting the differences in the values of the net cash flow when the bottomhole pressure changes.