RU2703064C1 - Method of increasing oil recovery of formations and intensification of oil production and system for its implementation - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry, namely to methods of increasing oil recovery of formations, intensification of oil production and stimulation of wells by creating channels in oil formations and devices for their implementation. Method includes installation in well of high-strength tubing, diverter with internal channel passing in it, binding and its possible orientation in space in the interval of lower level of sidetracking, sealing of well mouth, milling windows for each side barrel, installation of downhole equipment consisting of jet nozzle, control unit of trajectory of the shaft, navigation system, working flexible tubing string, flow redistribution device, check valve, flexible tubing supply pipe, liquid supply into tubing annulus / supply tubing, movement of the jet nozzle through the sealing device, through the deflector into contact with the rock, the planned extension of the offshoot, wherein the trajectory of the barrel is determined and varied by means of the barrel and navigation equipment control unit to ensure the barrel wiring along the project trajectory, after driving of the working flexible tubing with the nozzle for the sidetracks wiring at the next levels, the supply and working flexible tubing string are removed from the well, the tubing string is torn off from the mechanical anchor, withdrawing the tubing pipe fitting, preset and equal to the transition length to the next level, washing the well to complete removal of slurry, by actuation of mechanical rotary device deflector is transferred to another plane, tubing is forced on mechanical anchor, working flexible tubing string with downhole equipment is lowered into well, after which work on radial shafts is repeated. When milling windows in casing string cutter is lowered into well on flexible shaft and all projecting windows are cut in one its lowering, after which cutter is lifted; during sidetracking, the current position of the borehole in the formation and the position of the jet nozzle are monitored in real time, using as a navigation equipment a device for tracking the position of the nozzle with a sensor unit connected to the control unit of the borehole trajectory and the jet nozzle; after well flushing, geophysical survey of bottomhole formation zone is carried out by means of additionally introduced into composition of downhole equipment of instruments survey of geophysical properties of rock; transmitting information to ground equipment is carried out by means of a navigation system in the form of current conducting cores built into walls of supply and working flexible tubing string; according to the results of the obtained information, the offshoot is corrected along the project trajectory.

EFFECT: technical result is higher efficiency of oil recovery of reservoirs and intensification of oil production.

2 cl, 3 dwg

Description

The group of inventions relates to the oil industry, and in particular to methods for enhancing oil recovery, stimulating oil production and stimulating wells by creating channels in oil reservoirs and devices for their implementation.

A known method of opening productive formations of oil and gas wells, including the creation in the productive formation and above its uncased section of the main trunk with drilling mud drilling fluid, the secondary opening of the formation by drilling in its bottom-hole zone instrumental layout with diverter radially directed perforation channels with arched trunks, consisting of descending sections, turning into horizontal and / or horizontally ascending sections, with entrances to open-air section and waste, provide opening the layers of the productive formation, causing inflow of the formation fluid into the well. After creating an uncased section of the main trunk, it is expanded, then a cork is formed in it by filling with a hardening compound, after hardening of which, in the cork, an auxiliary shaft is formed coaxially to the main auxiliary trunk with a diameter and depth sufficient for subsequent drilling of perforation channels that are drilled with entrances located in the open section along a helical line by interval-wise axial movement and rotation of the instrumental arrangement with a deflector in the auxiliary shaft. Prior to the expansion of the uncased portion of the main trunk, an insulating composition, for example, a gelling agent, is injected into the bottomhole zone of the formation to a depth less than the distance of the perforation channels departure, but exceeding the diameter of the expanded part of the main trunk (RF patent 2213195, IPC ЕВВ 7/06).

The disadvantages of this method is the lack of impact on the remote zone of the reservoir, in connection with this low additional oil production. This is because;

- the length of the sidetracks is limited, non-drained reserves located in the remote zone of the reservoir are not involved in the development.

- there is no monitoring of the current position of the barrel and the nozzle in real time;

- there is no possibility of a geophysical study of the properties of the bottom-hole formation zone, which makes it possible to select the optimal operating mode of the downhole equipment, determine the most promising zones for the development of residual reserves and make it possible to make operational and more informed decisions on measures for oil recovery.

A device for radial drilling of cased wells, comprising a housing with a curved guide, a flexible shaft, a mechanism for rotating a flexible shaft, made in the form of a hydraulic downhole motor, a mechanism for axial movement of a flexible shaft and a cutting tool. The axial movement of the flexible shaft is made in the form of a drum and a continuous flexible pipe wound around the drum, while the casing of the hydraulic downhole motor is connected to a continuous flexible pipe (RF patent 80499 IPC ЕВВ 43/11 (2006.01)

The disadvantages of the known device are:

- significant labor costs during drilling and the limited length of the created channel due to the use of a downhole hydraulic motor in the layout of the system;

- the device does not allow to engage in the development of non-drainable reserves located in a remote zone of the reservoir (the length of the sidetracks is limited).

- the device does not provide for monitoring the current position of the barrel and the nozzle in real time;

- there is no possibility of a geophysical study of the properties of the bottomhole formation zone, which allows selecting the optimal operating mode of the downhole equipment, determining the most promising zones for developing residual reserves and allowing making quicker and more informed decisions on measures for oil recovery.

Closest to the claimed method is a method of increasing hydrocarbon production and intensification of oil and gas condensate wells by means of hydro-radial radial drilling of the formation, including installing high-strength tubing in the well, a diverter with an internal channel passing through it, tying it and its orientation in space in interval of the lower level of sidetracking, sealing of the wellhead, installation of downhole equipment, consisting of hydromo nitro nozzle, trunk trajectory control node, navigation system, flexible tubing working, flow redistribution device, check valve, flexible tubing supply, fluid supply to the annular tubing space / flexible tubing, moving the nozzle through the sealing device, through the diverter into the rock contact , post the planned length of the radial shaft using a navigation system to monitor the current position of the barrel in the reservoir, as well as using the control unit by tracing the well to ensure that the well is guided along the projected trajectory, after working the flexible tubing with the nozzle through the formation, the nozzle is removed from the formation and the well is flushed until the cuttings are completely removed, the deflector is moved to another plane by means of a mechanical rotary device, the cycle of work is repeated for the next side well .

Milling of a separate window for each sidetrack is carried out immediately before the main operation for passing the sidetracks through the diverter; during sidetracking, the path of the trunk is determined and changed by supplying working flexible tubing with a stem path control unit and navigation equipment, for radial trunks on subsequent levels, the feeding and working flexible tubing is removed from the well, the tubing is torn off the mechanical armature, the tubing fitting is removed, in advance e set and equal to the length of the transition to the next level, make landing the tubing to a mechanical anchor, lowered into the well working coiled tubing with the navigation system, the stem path control unit, jet nozzle, after which the work on the wiring radial trunks repeated.

When cutting windows in the casing for the sidetrack, an additional hydro-sandblasting device is lowered on coiled tubing, abrasive cutting of the rectangular hole with circulation is made, and then the equipment is lifted. Liquid is pumped through a small tubing annulus / flexible tubing and / or a small tubing annulus / flexible tubing and the inside of a flexible tubing (RF patent 2642194, IPC Е21В 7/06).

The disadvantages of this method are the duration of the process, low oil recovery and oil production. This is because:

- windows are cased in the casing after each sidetrack has been drilled using a sandblasting device, which complicates and lengthens the entire process;

- there is no monitoring of the current position of the barrel and the nozzle in real time;

- there is no possibility of a geophysical study of the properties of the bottomhole formation zone, which allows selecting the optimal operating mode of the downhole equipment, determining the most promising zones for developing residual reserves and allowing making quicker and more informed decisions on measures for oil recovery.

The features of the prototype method, which are common with the features of the claimed technical solution, are: a method of increasing oil recovery and intensification of oil production by means of a hydromonitor radial opening of the formation, including installing high-strength tubing (tubing) in the well, a diverter with an internal channel passing through it, binding and its possible orientation in space in the interval of the lower level of sidetracking, sealing the wellhead, milling windows for each side the barrel, the installation of downhole equipment, consisting of a hydraulic nozzle, a node for controlling the path of the trunk, a navigation system, a flexible tubing, a flow redistributor, a check valve, a flexible tubing, fluid flow into the annular space of the tubing / tubing, moving the nozzle through a sealing device , through the diverter into contact with the rock, posting the planned length of the sidetrack using a navigation system to control the current polo the hole in the reservoir, as well as using the node to control the trajectory of the trunk to ensure that the trunk is guided along the projected trajectory, when posting the lateral trunk, the trajectory of the trunk is determined and changed by the site of the trajectory control of the trunk and navigation equipment, after the working flexible tubing with a nozzle for penetration lateral shafts at subsequent levels remove the supply and working flexible tubing from the well, tear the tubing from the mechanical armature, remove the tubing fitting, pre-installed and equal to the length of the transition to the next level, the well is flushed until the cuttings are completely removed, the deflector is moved to another plane by operating the mechanical rotary device, the tubing is planted on a mechanical anchor, the working flexible tubing with downhole equipment is lowered into the well, and then the lateral wiring trunks are repeated.

The system by which the method described above is carried out and which is adopted as a prototype includes high-strength tubing (tubing), a diverter with an internal channel passing through it, snap and its possible orientation in space in the interval of the lower level of sidetracking, downhole equipment consisting of a hydraulic nozzle, a trunk path control unit, a navigation system, working flexible tubing, a flow redistribution device, a check valve, feeding flexible tubing .

The disadvantages of the system are limited technological capabilities, the duration of the process during its use, low coefficient of oil recovery and oil production, This is due to the fact that:

- window casing in the casing when using this system is carried out after each sidetrack is drilled using a sandblasting device, which complicates and lengthens the entire process;

- the system does not provide for monitoring the current position of the channel and the nozzle in real time, which affects the accuracy of the wellbore along the project path and, as a result, lengthens the production cycle in terms of ensuring wiring for a given project and, accordingly, reduces the efficiency of oil recovery and stimulation oil production;

- the system does not allow conducting geophysical studies of the properties of the bottomhole formation zone, which allow selecting the optimal operating mode of the downhole equipment, determining the most promising zones for developing residual reserves and allowing making quicker and more informed decisions on measures for oil recovery.

The system features of the prototype, which are common with the claimed system, are high-strength tubing, tubing, a diverter with an internal channel passing through it, snap and its possible orientation in space in the interval of the lower level of the side trunk wiring, sealing device, rotary device, mechanical anchor and downhole equipment consisting of a hydraulic nozzle, a trunk path control unit, a navigation system, a flexible working tubing, a flow redistribution device, valve feeding flexible tubing.

The objective of the invention is the creation of a method of increasing oil recovery and intensification of oil production and a system for its implementation with enhanced technological capabilities and a shortened process cycle aimed at improving the efficiency of the oil recovery process and intensification of oil production.

The technical result provided by the invention is the ability to monitor the current position of the barrel and the nozzle in real time; the possibility of a geophysical study of the bottom-hole zone of the formation, which allows you to select the optimal operating mode of the downhole equipment, the most promising areas for developing residual reserves and make operational and more informed decisions on measures for oil recovery; ensuring the possibility of targeted impact on the reservoir, on remote and isolated zones, and, as a result, an increase in the oil recovery coefficient and oil production.

The problem with the achievement of the technical result was solved due to the fact that in the known method of increasing oil recovery and intensification of oil production by means of hydromonitor radial drilling, including the installation of high-strength tubing (tubing) into the well, a diverter with an internal channel passing through it, binding and its possible orientation in space in the interval of the lower level of sidetracking, sealing of the wellhead, milling of windows for each sidetrack installation of downhole equipment, consisting of a hydraulic nozzle, a trunk path control unit, a navigation system, a working flexible tubing, a flow redistribution device, a check valve, a flexible tubing tubing, a fluid supply to the tubing annular space / tubing supply, moving a hydraulic nozzle through a sealing device, through the diverter into contact with the rock, posting the planned length of the side trunk using the navigation system to control the current position the trunk in the reservoir, as well as using the trunk path control unit to ensure the trunk is guided along the project path, when tracing the lateral trunk, the trunk path is determined and changed via the trunk path control unit and navigation equipment, after the working flexible tubing with the nozzle for lateral penetration through the reservoir at the next levels, the supply and working flexible tubing are removed from the well, the tubing is torn from the mechanical armature, the tubing fitting, previously installed and the length of the transition to the next level, the well is flushed until the cuttings are completely removed, by means of the mechanical rotary device, the diverter is moved to another plane, the tubing is planted on a mechanical anchor, the working flexible tubing with downhole equipment is lowered into the well, and then the sidetracking works repeat, according to the invention, when milling windows in the casing, the milling cutter is lowered into the well on a flexible shaft and all project windows are cut for one descent, after four the mill is raised; when conducting sidetracks, the control of the current position of the barrel in the formation and the position of the jetting nozzle is carried out in real time using the device for tracking the position of the nozzle with a block of sensors associated with the node for controlling the trajectory of the trunk and the jetting nozzle as navigation equipment; after flushing the well, geophysical studies of the bottom-hole zone of the formation are carried out by means of an additional block of instruments for studying the geophysical properties of the rock introduced into the downhole equipment; information is transmitted to ground equipment through a navigation system in the form of conductive cores mounted in the walls of the supply and working flexible tubing; according to the results of the information received, the sidetrack is adjusted along the project path.

The features of the proposed method, which are distinctive from the method of the prototype, when milling windows in the casing string, the cutter is lowered into the well on a flexible shaft and all project windows are cut in one run, after which the cutter is lifted; when conducting sidetracks, the control of the current position of the barrel in the formation and the position of the jetting nozzle is carried out in real time using the device for tracking the position of the nozzle with a block of sensors associated with the node for controlling the trajectory of the trunk and the jetting nozzle as navigation equipment; after flushing the well, geophysical studies of the bottom-hole zone of the formation are carried out by means of an additional block of instruments for studying the geophysical properties of the rock introduced into the downhole equipment; information is transmitted to ground equipment through a navigation system in the form of conductive cores mounted in the walls of the supply and working flexible tubing; according to the results of the information received, the sidetrack is adjusted along the project path.

The problem was also solved due to the fact that in the known system for increasing oil recovery and intensification of oil production, including high-strength tubing (tubing), a deflector with an internal channel passing through it, snap and its possible orientation in space in the lower interval the level of the side trunk wiring, a sealing device, a rotary device, a mechanical anchor and downhole equipment, consisting of a hydraulic nozzle, a trunk path control unit, nav according to the invention, the downhole equipment further comprises a unit for investigating the geophysical properties of the rock, installed between the working flexible tubing and a device for tracking the position of the nozzle; according to the invention, the downhole equipment; the flexible flexible tubing is made in the form of coiled tubing with conductive conductors mounted on the wall, and the flexible working tubing is made in the form of a multi-section high-strength hose containing conductive conductors; as a navigation equipment, a nozzle position tracking device with a sensor block in its central part, electrically connected to the barrel path control unit and a hydraulic nozzle, is used, made with fluid flow compartments in communication with the response compartments of the hydraulic nozzle; in the control unit of the trunk path along the perimeter, additional insulated compartments are provided, equipped with electromagnetic valves for regulating the direction of fluid flow; while the compartments of the device for tracking the position of the nozzle and the node for controlling the path of the barrel communicate with the response compartments of the hose.

The features of the claimed system, which are distinctive from the system of the prototype, the downhole equipment further comprises a unit for studying the geophysical properties of the rock, installed between a working flexible tubing and a device for tracking the position of the nozzle; the flexible flexible tubing is made in the form of coiled tubing with conductive conductors mounted on the wall, and the flexible working tubing is made in the form of a multi-section high-strength hose containing conductive conductors; as a navigation equipment, a nozzle position tracking device with a sensor block in its central part, electrically connected to the barrel path control unit and a hydraulic nozzle, is used, made with fluid flow compartments in communication with the response compartments of the hydraulic nozzle; in the control unit of the trunk path along the perimeter, additional insulated compartments are provided, equipped with electromagnetic valves for regulating the direction of fluid flow; while the compartments of the device for tracking the position of the nozzle and the node for controlling the path of the barrel communicate with the response compartments of the hose.

In FIG. 1 - presents a system for increasing oil recovery and intensification of oil production; in FIG. 2 - shows an image of the jet nozzle, side view and section; in FIG. 3 - a device for tracking the position of the nozzle, a cross section.

The system consists of:

1 - tubing (tubing),

2 - diverter

3 - packer (sealing device),

4 - rotary device

5 - mechanical anchor,

6 - coiled tubing with wall conductors mounted in the wall,

7 - node control the path of the trunk,

8 - multi-section high-strength hose containing conductive cores,

9 - block study of the geophysical properties of the rock,

10 - device tracking position of the nozzle,

11 - jetting nozzles,

12- flow redistribution devices.

13-check valve.

Also in FIG. 1 are shown:

14 - production casing,

15- cement stone

16 - annulus

17 - operational facility,

18 - side trunk.

Arrows indicate the direction of fluid movement (working agent).

In FIG. 2 are shown:

19 - compartments for the passage of fluid,

20 - nozzle for hydromonitor destruction of the rock,

21 - nozzle for jet propulsion nozzles.

In FIG. 3 are shown:

22 - compartments for hydromonitor destruction of the rock,

23 - compartments for deflecting the jet nozzle,

24 - block inclinometric sensors.

A method of increasing oil recovery and intensification of oil production using the proposed system is as follows.

To create an oriented directional sidetrack 18 in the production facility 17 into a stopped, plugged and prepared well (the wellbore has been cleaned of possible deposits: asphalt-resin-paraffin deposits (paraffin deposits), scale deposits, etc.) 1 arrangement consisting of a deflector is lowered on the tubing 2, having a passage channel with a lateral outlet, a packer 3 (sealing device), a rotary device 4 and a mechanical armature 5. The diverter 2 is installed in the interval of the reservoir, at a depth design kick-off of production casing 14. Next, the wellhead is sealed and windows are milled for each sidetrack. To do this, a cutter on a flexible shaft is lowered into the deflector through the tubing. Cutting of all windows is carried out in one run of the cutter. After cutting the windows, the cutter rises to the surface.

Then in the tubing 1 in a rigid coupling by means of a threaded connection on a coiled tubing 6 with conductive cores mounted in its walls: a hydraulic monitor nozzle 11, a device 10 for tracking the position of the nozzle 11, a unit 9 for studying the geophysical properties of the rock, a multi-section high-strength hose 8 containing conductive conductors, a node 7 control the path of the trunk 18. Through coiled tubing 6, a flushing fluid (working agent) is supplied from above, which enters the node 7 of the control of the path of the trunk, in which the redistribution takes place s fluid stream. The trunk path control unit 7 has at least five isolated compartments for fluid flow, a central one and compartments located around the perimeter of the unit 7. The compartments located around the perimeter are equipped with solenoid valves for regulating the direction of fluid flow (not shown in FIG.). The compartments of the trunk trajectory control unit 7 communicate with the response compartments of the multi-section hose 8.

The control signals of the electromagnetic valves of block 7 come from ground equipment through conductive cores mounted in the wall of the coiled tubing 6. The node 7 controlling the path of the trunk is a conductor of electrical signals from coiled tubing 6 to the conductive cores that are part of the high-strength hose 8 and then to the geophysical properties research unit 9 rocks and a device 10 for tracking the position of the nozzle 11, as well as feedback signals from the device 10 for tracking the position of the nozzle 11 and block 9 for geophysical research stv breed.

The compartments of the multi-section hose 8 from its other end are correlated with the corresponding compartments of the nozzle position tracking device 10. From the barrel trajectory control unit 7, the working agent (fluid) through the multi-section high-strength hose 8 enters the hydraulic monitor nozzle 11, where it interacts with the operational object 17 (rock ) through a nozzle 20 for hydromonitor destruction of rock and a nozzle 21 for reactive movement of the nozzle 11 from the well deeper into the production facility 17. The working agent (fluid) is continuous about served through the compartments 22 of the device 10 tracking the position of the nozzle 11 (Fig. 3). The liquid (working agent) together with the particles of the destroyed rock rises to the surface along the annular space 16 of the well. The device 12 redistribution of flow is used to redistribute the liquid between the inner space of the coiled tubing and a small annulus of coiled tubing when it is flushed from the sludge. The non-return valve 13 prevents from overflow of liquid in the opposite direction when the fluid supply is stopped.

To control the position of the hydraulic nozzle 11 by the barrel path control unit 7 (to deviate the nozzle), fluid is supplied through the compartments 23 of the nozzle position tracking device 10. To ensure the movement of the hydraulic nozzle 11 to a certain side, a signal is sent from the ground equipment to the electromagnetic valve of the path control unit 7 a barrel located opposite the desired direction of deviation of the nozzle 11. This valve blocks the flow of fluid through the corresponding compartment 23 and there is a deviation of the nozzle 11 in a given direction.

The location of the nozzle 11 is determined using the device 10 for tracking the position of the nozzle 11, which contains inclinometric sensors, for example, gyroscopes, magnetometers and accelerometers located in the block 24 of the inclinometer sensors of the device 10. Information about the location of the nozzle 11 in real time is transmitted from the device 10 tracking the position of the nozzle 11 on the cable communication channel (conductive wires of coiled tubing 6 and hose 8) to a working computer (not shown in FIG. en).

After reaching the design length of the sidetrack 18, the well is flushed to remove particles of the destroyed rock. After flushing the well, geophysical studies of the bottom-hole zone of the formation are carried out using a geophysical device located in block 9 for studying the geophysical properties of the rock. Information about the properties of the bottom-hole zone is transmitted in real time from the geophysical instrument via a cable communication channel (conductive coiled tubing cores 6 and hose 8) to a working computer (not shown in FIG.). The obtained results are downloaded to the working computer in the accompanying software, as a result of which a virtual model of geophysical properties of the bottomhole formation zone is obtained, which allows making more informed decisions on oil recovery measures.

Then, using the rotary device 4, the deflector is rotated through an angle designed to drive the next barrel, and the above-described technological operations are repeated.

Milling all the windows simultaneously under the sidetracks can reduce the time of the technological operation, which in turn reduces the repair period of the well.

Carrying out coiled tubing and a hose with built-in conductive conductors ensures the transfer of information from equipment lowered into the well to ground equipment in real time, which allows you to track the actual trajectory of the sidetrack, compare it with the design throughout the entire drilling process, and respond quickly to deviations from the design trajectories and make adjustments to achieve design gains in oil production. Real-time transmission of information on the geophysical properties of the bottom-hole formation zone allows you to select the optimal operating mode of the downhole equipment, determine the most promising zones for the development of residual reserves, and make quicker and more informed decisions on measures for oil recovery.

The implementation of the multi-section hose allows you to redistribute the fluid flows inside it and, thus, control the jet nozzle. As a result, due to the directional creation of the sidetracks, it becomes possible to target residual hydrocarbon reserves not covered by the displacement process and increase the oil recovery coefficient. By controlling the trajectory in real time, it becomes possible to drill the sidetrack strictly along the projected trajectory throughout the entire drilling process, thereby achieving projected oil production growth rates and effectively intensifying oil production.

The implementation of the navigation equipment in the form of a device for tracking the position of the nozzle containing MEMS sensors (for example: gyroscope, magnetometer, accelerometer) provides real-time information about the position of the hydraulic nozzle, which makes it possible to track the actual trajectory of the sidetrack and compare it with the design throughout the entire drilling process and thereby respond promptly to deviations from the project path and make adjustments to achieve the project x increments oil rate.

Providing the system with a block of instruments for studying the geophysical properties of rocks allows real-time geophysical studies of rocks, which allows you to select the optimal operating mode of downhole equipment, determine the most promising areas for developing residual reserves and make quicker and more informed decisions on measures for oil recovery.

Thus, the creation of oriented channels, targeted impact on isolated and stagnant oil zones of reservoirs, involvement of remote hard-to-reach areas of residual oil reserves, ensuring knowledge of the bottomhole formation zone and constant monitoring of the channel drilling process will increase the efficiency of the oil recovery process and enhance oil production.

The claimed method and system for enhancing oil recovery and intensifying oil production using directional radial drilling is universal and effective for both carbonate and terrigenous rocks.

Claims (2)

1. A method of increasing oil recovery and intensification of oil production by means of hydromonitor radial opening of the formation, including installing high-strength tubing (tubing) into the well, a diverter with an internal channel passing through it, tying it and its possible orientation in space in the interval of the lower level of lateral wiring wellhead sealing, wellhead milling, window milling for each sidetrack, installation of downhole equipment, consisting of a hydraulic nozzle, control unit the path of the barrel, navigation system, working flexible tubing, flow redistribution device, non-return valve, feeding flexible tubing, fluid supply to the annular space of the tubing / tubing, moving the nozzle through the sealing device, through the diverter into contact with the rock, wiring of the planned lateral length trunk, while determining and changing the trajectory of the trunk through the node control the path of the barrel and navigation equipment to ensure the wiring of the barrel on the design of the trajectory, after a working flexible tubing with a nozzle for guiding the sidetracks at subsequent levels, the feeding and working flexible tubing is removed from the well, the tubing is torn from the mechanical armature, the tubing fitting, previously installed and equal to the transition length to the next level, is removed, flushing the well to complete removal of the sludge, by means of the mechanical rotary device, the deflector is transferred to another plane, the tubing is planted on a mechanical anchor, the working one is lowered into the well flexible tubing with downhole equipment, after which the work on wiring radial shafts is repeated, characterized in that when milling windows in the casing, the milling cutter is lowered into the well on a flexible shaft and all of the project windows are cut in one run, after which the milling cutter is lifted; when conducting sidetracks, the control of the current position of the barrel in the formation and the position of the jetting nozzle is carried out in real time using the device for tracking the position of the nozzle with a block of sensors associated with the node for controlling the trajectory of the trunk and the jetting nozzle as navigation equipment; after flushing the well, geophysical studies of the bottom-hole zone of the formation are carried out by means of an additional block of instruments for studying the geophysical properties of the rock introduced into the downhole equipment; information is transmitted to ground equipment through a navigation system in the form of conductive cores mounted in the walls of the supply and working flexible tubing; according to the results of the information received, the sidetrack is adjusted along the project path. 2. A system for enhancing oil recovery and stimulating oil production, including high-strength tubing, a diverter with an internal channel passing through it, snap and its possible orientation in space in the interval of the lower level of the sidetrack wiring, sealing device, rotary device , mechanical anchor and downhole equipment, consisting of a hydraulic nozzle, a trunk path control unit, a navigation system, a flexible working tubing, a redistribution device Nia flow check valve, the supply flexible tubing, wherein the downhole equipment comprises a further study geophysical properties of the rock, mounted between the working flexible tubing and nozzle position tracking device; the flexible flexible tubing is made in the form of coiled tubing with conductive conductors mounted on the wall, and the flexible working tubing is made in the form of a multi-section high-strength hose containing conductive conductors; as a navigation equipment, a nozzle position tracking device with a sensor block in its central part, electrically connected to the barrel path control unit and a hydraulic nozzle, is used, made with fluid flow compartments in communication with the response compartments of the hydraulic nozzle; insulated compartments equipped with solenoid valves for regulating the direction of fluid flow are made in the control unit of the trunk path along the perimeter; while the compartments of the device for tracking the position of the nozzle and the node for controlling the path of the barrel communicate with the response compartments of the hose.

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