The article deals with one of the relevant technological challenges in drilling - improvement of the quality and efficiency of deep directional well construction under harsh mining and geological conditions of Rechnoye field by means of developing and introducing scientific and technical measures to preserve reservoir properties of a productive bed, high quality well construction and further safe operation resulting in hydrocarbon production inflow increase. Integrated economic benefit from constructing directional Antipovsko-Balykleyskaya 152 well in Rechnoye field with respect to introduced scientific and technical measures equalled 1,081,600.7 kRUB/year, with payback time of 1 year proving high economic efficiency of these measures.
Key words: construction, directional well, complications prevention, drilling muds, commercial drilling speed, economic efficiency.
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