Currently, enhanced oil recovery methods from the existing well stock are widely used in the oil and gas industry. The production rate of wells decreases in time due to watering, failure of downhole equipment and etc. Regular methods of well workover and enhanced oil recovery do not provide a significant increase in flow rate and its preservation for a long time. Drilling new wells is expensive, while restarting idle wells allows reducing the financial burden on oil and gas producing enterprises. This article is devoted to a new method of enhanced oil recovery – controlled radial penetration of the formation along a given trajectory. This method consists of drilling one, two or more channels up to 14 m long in previously drilled wells. While drilling the intensity of angle gain reaches 8 deg/m. It is possible to drill up to 4 channels from one kickoff point with an unlimited number of such points in well. All work is carried out use a lifting unit for workover with standard tubing, without the using of coiled tubing. Drilled channels can be cased with filters, which ensure their stability. Logging can also be carried out at a distance from the main shaft as well as hydrochloric acid treatment. This type of geological and technical activity can be used for inflow stimulation, initial opening of the formation, for well testing, as an alternative to sidetracking, to bypass failure equipment, to orient cracks during hydraulic fracturing. The article describes the experience of using the technology of radial opening of the formation at the Zapadno-Khosedayuskoe field, which is a part of the group of the Centralno-Khoreyverkoe uplift.
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