Authors: N.A. Bakhshyan, N.D. Bulchaev

Title of the article: Improving the operating efficiency and decreasing costs of eсpu use in wells with high gas-oil ratio

Year: 2018, Issue: 2, Pages: 70-76

Branch of knowledge: Economics and innovation management

Index UDK: 622.279; 550.8

DOI: 10.26730/2587-5574-2018-2-70-76

Abstract: Electric centrifugal pump units (EСPU) are the main type of oil producing equipment. If in 1960 they produced 9.3 million tons of oil, then in 1980 about 200 million tons with 19% of the well stock, today – more than 300 million tons. The main factor in the wide use of EСPU is the installation of a drive in the well near the pump, which eliminates a long connection unit between them and allows removing the restriction on transferring net capacity to the pump. For reliable operation of the pump, its correct selection for the definite well is required. At the moment, the emphasis is placed on more reliable equipment in order to increase the time between repairs, and as a result, lower costs for lifting the liquid. This can be achieved by using ECPU instead of deep well pumps (DWP), since centrifugal pumps have a large overhaul period. The information on the effect of free gas on the performance characteristics of electric centrifugal pump units (ECPU) is given. The existing methods of increasing the efficiency of ECPU operation in wells with a high content of free gas are analyzed. As a conclusion, further perspectives and relevance of the present methods are considered with respect to the Vankor oil and gas field.

Key words: equipment use efficiency operation costs electric centrifugal pump units (ECPU) electric centrifugal pump free gas oil-gas ratio the impact of free gas

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