RU2495999C1 - Method and device for oil and gas well operation intensification (versions) - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: for intensification of wells operation multi-component depression devices are used. In productive formation they form depression zones with distance of up to 100 metres and more with depression value within 0.1-0.9 of hydrostatic pressure, with depression duration of 0.3-3.5 seconds and more under factor of impact on formation of up to 4.5 and more creating thus depression-hydrogasdynamic impact in controlled mode to open existing cracks and create new cracks. Also involvement of dead-stagnant oil-saturated sections in development is provided. At that extraction of colmatant and rock specimen from well bore zone of productive formation is performed as well as allotment of fracture zones and their connection to geological section.

EFFECT: increasing degree of oil-and-gas inflow intensification due to cleaning of perforated channels and depression controllability.

8 cl, 7 dwg

Description

The invention relates to the oil industry, in particular to methods and devices for stimulating well operation during the development of hard-to-recover hydrocarbon reserves, provides high efficiency due to deep depressive treatment using multi-element depressive devices lowered into the well on a geophysical cable, ensuring the creation of a controlled value of duration and the extent of the effect of depression with the subsequent transfer of the depressive regimen to hydrorepression with simultaneous launching gas generating elements of the body gas generator to create a combined hydro-gas-dynamic pressure pulse above the mountain pressure in order to reveal existing and create new fractures in the formation when registering the dynamics of pressure changes in the well with autonomous digital systems at a sampling rate of 8-10 thousand per second to document and evaluate the completion of the formation fracture by wave parameters of the hydro-gas-dynamic process in the well.

The known method and equipment on a geophysical cable for processing the borehole zone of production wells for the intensification of oil and gas production, developed by JSC NPP VNIIGIS (1). The basis of this method is the shock-depression choke UJ, the distinctive features of which are:

- use of a geophysical cable;

- remote control;

- registration of hydrodynamic effects (GDV) by pressure;

- ensuring the opening of the receiving chamber by an electromechanical drive.

Shock-depressive baits and other developers are similar in design (2).

The disadvantages of existing cable shock and depression devices are:

- the lack of the ability to quickly change the size of the passage channel and the direction of fluid flow;

- point mode of depression;

- limited range of hydrodynamic effects;

- the possibility of working with packer systems is not provided;

- low impact on the reservoir, as a result of which repeated repeated descents of UDZh are required - up to 10 or more (1, table of results).

The known method of geological drying of rocks to increase the productivity of wells (3). One of the technological elements of this method is the creation of a long depression (up to 15 hours) at a level of 140 atm with the help of a UEOS-4 jet pump. The disadvantage of this method is its extremely high complexity.

A device for cleaning the near-wellbore zone of productive reservoirs of oil wells (4), characterized in that the depression chamber is made in the form of a set of tubing with a total volume of 30 to 300 liters. This device is one of the varieties of shock-depression bellow and its disadvantages are similar to those described above.

A known method of multi-cycle pulsed stimulation of a formation (5), by creating short-term depressive-repressive damped oscillations, due to the intense flow of well fluid into the depression chamber when opening the inlet valve, characterized in that the magnitude of the depression impulse is set to 30-45% of the hydrostatic pressure regulation of the hydraulic resistance of the inlet valve with up to 15-20 cycles of damped oscillations of the fluid in the wellbore with the aim of buildup plugs, clogging filter channels.

The disadvantages of this method are similar to the devices described above. Oscillatory processes of the fluid in the wellbore with a dynamic impact range of 60-70% of the hydrostatic pressure are ineffective for swinging and extracting the clogging material from the formation.

A known device and method for exciting elastic vibrations and hydraulic fracturing (6), consisting of a depression chamber with two hydraulically balanced receiving valves located at the ends of the chamber when they are sequentially opened using an electro-hydraulic trigger mechanism, consisting of an electromagnet and a hydraulically balanced trigger valve, when opened under the hydrostatic pressure opens the upper valve and the lower one, held in the initial position by the technological chamber of the shank, baking almost instantaneous opening of the depression chamber with an opening coefficient of more than one, creating a “zone” of reduced pressure in the well, providing conditions for the formation of repressive water hammer in the range from 0.1-0.2 to 2 times or more the hydrostatic pressure with a volume of the depression chamber of 6-8 liters to hundreds of liters, depending on the depth of the device or the purpose of its use to create elastic vibrations or hydraulic fracturing.

This method and device have several disadvantages:

- with a high opening coefficient of the depression chamber, two receiving valves are not enough to ensure effective impact on the reservoir in order to clean the borehole zone;

- limited ability to create an adjustable extent of the zone of depression and the formation of controlled by the magnitude and duration of the effect of depression;

- the lack of the ability to quickly change the throughput of the receiving valve systems and the direction of fluid flow;

- non-optimal use of the potential energy of the hydrodynamic system "well - depressive device - reservoir" to provide fluid impact fluid flow for cleaning and hydraulic fracturing of the reservoir.

The known method of hydraulic fracturing (Fracturing), widely used in industrial practice to restore and increase the productivity of wells, the filtration properties of which in the near-wellbore zone of the formation are impaired during construction, development and operation. The essence of hydraulic fracturing is that fluid is pumped into the well at a high pressure that is 1.5–3.0 times higher than the hydrostatic pressure, as a result of which existing fractures open in the near-wellbore zone of the formation and new ones form. To prevent the closure of these cracks, coarse sand is introduced into them. As a result, well productivity is significantly increased [7]. However, despite the effectiveness, this technology is time-consuming, expensive and does not always give the expected results.

Numerous devices are known - solid fuel gas generators that are lowered into a well on a cable and are distinguished by their design and formation impact capabilities, which allow a wide variation in the dynamics of increasing load on rocks and create a stress state in order to break the reservoir.

The well-known "Solid fuel gas generator with an adjustable pressure pulse for stimulation of wells" [8]. The object of the invention is solved by the fact that between the ignition charge and armored charges on the outer surface there are unarmored tubular charges with a large initial combustion surface. After the combustion of all unarmored charges, the pressure decreases slightly, and then again reaches its maximum value due to the progressive nature of the burning of armored charges, providing an increase in the duration of the force impact on the formation, while gradually reducing the pressure to the initial one [8].

As a disadvantage of this gas generator, it should be noted that to increase the rate of increase in pressure, highly hazardous ignition devices of detonation action with an explosive cartridge and detonating cord are used, the required dynamics of formation unloading for the most effective achievement of the set goal is not provided; lack of information support for monitoring and evaluating the completeness of the process.

The well-known "Unpackaged sectional charge for gas-hydraulic stimulation of the reservoir" [9]. The device consists of an igniter assembly and charge sections made of compositions providing combustion in aqueous, oil-water and acidic environments and may have one or more igniter sections and accessories with parts for collecting charge sections passed through the central channel of each section. Equipment is a composite rod with cones - streamlined centralizers for tightening and preloading the charge sections close to each other. The charge sections do not have a protective coating. This provides combustion over the entire surface of the charge. The configuration of the central channel has a shape with a developed combustion surface to provide a given burning time and pressure for hydraulic fracturing. To register the pressure, temperature over time and reference the depth of the installation site of the device in the well, a measuring unit is provided with a locator of couplings that is in electrical communication with the ground control panel.

The disadvantages that reduce the effectiveness of the use of this gas generator include the lack of regulatory conditions for its use, depending on the state of the secondary opening and the assessment of the success of the completion of the gas-hydraulic stimulation of the reservoir and the low reliability of the measuring unit in hydrodynamic conditions during gas generator operation.

Interesting is the “open case sectional charge for gas-dynamic stimulation of the formation” [10], which differs from the previous charge [9] by the presence of a through hollow channel inside the rods and couplings along their central axis to place the electrical lines of the ignition unit and the electronic unit fixed on the rod below the charge gas generator. A positive solution in the design of the gas generator is to place the electronic unit on the rod below the charge, however, the presence of a passage channel with a diameter of 6-8 mm for the placement of electric wires reduces the strength of the rod equipment, complicates installation, requires the use of multi-core geophysical cables, increasing the accident rate, especially when a set of nine or more powder charge sections.

The well-known "Methods of gas-hydraulic stimulation of the formation" [11, 12], implementing the use of the device according to the patent [10], characterized in that for the implementation of the formation fracture, several sequential operations are performed on the formation with registration of the charge operation mode and selection of the mass of charge sections at the first such a descent to provide a pressure in the interval of the treated formation that exceeds the rock tensile strength to create cracks in the formation and provide hydrodynamic communication with the well. For subsequent impacts, the charge mass is determined so as to provide sufficient pressure in the interval of the treated formation to develop and deepen the cracks formed during the first burning of the charge sections. By the change in the amplitude parameters of the pressure during the combustion of the first and subsequent charges, the nature of the impact on the formation and the reaction of the bottomhole zone to the impact are judged.

In the method according to the patent [12], when selecting the mass of burnt charges, the depth of the treated formation, its length and the number of perforation holes are taken into account, while the mass of each subsequent charge is increased by increasing the length of the rod and charge.

The main disadvantage of the above methods of gas-hydraulic stimulation of the formation is the lack of criteria for assessing the completeness of the impact on the formation and justification for the need to continue work. Increasing the mass of the charge by increasing its length leads to an increase in accident rate of work.

The well-known "Method of gas-hydraulic stimulation of the formation" [13], including deep penetrating perforation, the use of devices according to patents [9] or [10] with the provision of sealing joints of charge sections and passage openings of the diffuser in order to use the internal cavity of the charge and diffuser to accommodate the substance that exerts at the same time as the gas-dynamic effect, an additional effect for the development and cleaning of cracks or for fixing them with quartz sand, to reduce the viscosity of oil or increase penetration formation viscosity by foaming compositions. The combination of gas-dynamic effects on the reservoir with other methods of stimulating oil flow is undoubtedly of practical interest. However, the volume of intensifying substances recommended by the patent placed in the internal cavity of the charge, taking into account the real possibility of delivery to the formation zone through perforation holes during the combustion of the charge, is clearly not enough to obtain the expected result. In addition, filling the internal cavity with a loose or gel-like substance during the installation of the charge in the field with the necessary sealing of the end joints is time-consuming and non-technological.

The well-known "Method of gas-dynamic effects on the reservoir and device for its implementation" [14].

A device for gas-dynamic impact on the formation, including deep-penetrating perforation in the interval of the treated formation, assembly of an open-section sectional charge with rigging by passing a hollow composite rod through the central channel of the charge sections, pulling and preloading the charge sections close to each other with centralizers, connecting the wireline cable to electronics, charge burning in the perforation interval, real-time combustion control and registration of the characteristics of the regime the operation of the charge, such as temperature and pressure in the well fluid in the interval of exposure at a safe distance from the charge, characterized in that they record the temperature and pressure above the combustion zone of the charge with a frequency of 0.5 ms and, additionally, record the pressure directly in the combustion zone charge, for which an additional pressure sensor is placed in the lower part of the electronics unit, and a hollow composite rod against the charge is made with a radial hole, at least one, for gas-hydrodynamic communication of the zone combustion of the charge through the cavity of the composite rod and its radial hole with the area of the additional pressure sensor, while the maximum pressure values measured above the combustion zone of the charge and directly in the combustion zone, the difference of these pressures, evaluate the energy of the pressure pulse spent on fracturing and energy the pressure impulse that entered the wellbore compares these data and judges by the rise and fall of pressure and temperature on the effectiveness of the impact on the formation - carried out or unfulfilled In case of a continuous fracture, assess the need for re-exposure to the formation and the energy necessary for this, with repeated exposure and recording the above parameters, evaluate the change in these parameters from one impact to another and the nature of these changes, which are used to judge the increase in the radius of local fracture and the need for subsequent effects on the reservoir.

The method provides for the localization of the interval of exposure to the treated formation by using a charge in the snap against the selected interval of the perforation zone of the coupling centralizers close to the inner diameter of the casing.

The disadvantages of this method include the difficulty of assessing the effectiveness of the impact on the formation and local fracturing according to the recorded pressure and temperature parameters using the proposed electronic unit with a separate telecommunication line with the ground unit and hydraulic channels for additional sensors; insufficient measurement frequency; the presence of an internal channel in the rods reduces their strength and with an increase in the diameter of the centralizer couplings will certainly lead to emergency situations; the imperfection of the installation of an electroflame system causes frequent failures; the device and method do not provide for the possibility of use in deviated and horizontal wells.

A typical disadvantage of all known methods and devices based on the use of gas-generating charges for fracturing reservoirs is:

- frameless gas generators of pressure are the least accident-resistant, since gas-generating charges are sensitive to shock and are classified as class 1, subclass 1.4, compatibility group C by the degree of danger of handling;

- the lack of preliminary cleaning of the borehole zone of the formation from colmatant due to the reaction products of hydrochloric acid treatments and other technogenic factors.

The well-known "Gas generator to increase the productivity of oil and gas wells" [15].

The gas generator consists of a unit with the main charge of the solid propellant composition and an ignition unit, in the upper part of which there is a membrane that breaks at a given pressure through tubing. Under the action of a pressure drop, a piston occurs from an annular collar fixing it and gas is compressed in the chamber of the ignition unit. Under the action of a pressure force under the piston, the compressed gas is heated to a temperature significantly higher than the temperature of the chemical decomposition of the promoter, providing even greater heating of the compressible gas mixture. When the pressure of the compressed gas exceeds the threshold of operation of the lower bursting disc, the heated gas mixture is ejected into the chamber with the main charge of solid fuel, providing its ignition.

An interesting version of the adiabatic igniter for a case pressure gas generator is proposed, but when working on pipes it is unpromising due to low processability, high labor intensity and insufficient reliability. In the cable version of the case gas generator, the use of the proposed adiabatic igniter is more promising, but in a modernized version.

Close to the proposed invention is the "Method and device for cumulative perforation of wells (options)" related to methods and devices for intensifying oil production [16]. The essence of the invention is that the device according to the first embodiment consists of a device head, a starting device, a case shaped-type perforator with a fuse of mechanical or adiabatic action without initiating substances, charges with a piercing ability of up to 700 mm with an inlet diameter of 8-26 mm, one or two Depression chambers with valves for opening them. Valves are made with a diameter of 10 to 65 mm. An electro-hydraulic starting mechanism is used as a trigger, when opened, the upper receiving valve and the lower shock valve of the depression chamber can be opened, which open the depression chamber and create a depression zone in the borehole with simultaneous initiation of a cumulative perforator fuse for breaking through perforation channels during the period of reduced pressure on the productive formation with the formation of repression hydropercussion for hydraulic fracturing and subsequent repressionnoy multicyclic depression-treating the perforated interval. When using two depression chambers, a chamber is used as the second chamber, the valve of which is equipped with an automatic time delay system. The device according to the second embodiment is made without depression chambers. According to the method, the device is installed in the designed perforation interval. Explosive charges are driven and perforation channels are created. According to the invention, a depression is created that is controlled by magnitude and duration of action to provide repressive hydraulic fracturing with one or two-stage multi-cycle hydropercussion, for which a device with one or two depression chambers is used. According to the method of the second embodiment, a device without depression chambers is used.

As a disadvantage of this method, it is worth noting the optimal use of potential energy to solve the problem of effectively cleaning the filtration channels and repressive hydraulic fracturing of the reservoir.

Closest to the alleged invention to provide deep depressive treatment of a productive formation with the possibility of subsequent formation of hydrorepression effects with the aim of fracturing the formation is "Device and method for stimulating the operation of oil and gas wells (options) according to paragraphs 1 and 4 (17).

In one embodiment, the device includes a geophysical cable for lowering the device and consists of an instrument head, a trigger, a depression projectile in the form of two or more receiving valve filters interconnected by depression chambers with atmospheric pressure, and a gauge block. According to the invention, receiving valve filters of a pneumohydro-balanced design with passage channels with a diameter of 10 to 50 mm and a common pneumohydrochannel from depression chambers are used. Each of these chambers, with a length of 1.5 to 3.0 m or more, provides automatic opening of all downstream valve filters and the creation of a depression zone in the well, which is regulated by the number of receiving filters and depression chambers, with a depression value of 0.1 -0.9 gyrostatic pressure, duration of action 0.6-1.2 with depression and with a controlled ratio stimulation K _ch, the estimated ratio of total area of the filter valve to the area of the gap between the depression device and ck Azhinov integral value to 1.0 or more. At the same time, the lower depression chamber was used as a container for collecting and lifting to the surface the colmatant extracted from the formation. As a starting device, an electro-hydraulic starting mechanism is used, when opened under the influence of hydrostatic pressure, it is possible to open the upper intake valve filter with automatic sequential opening of all downstream intake filters. Other device options are modifications of the described option. Variants of the method are in various uses of the device.

The disadvantages of this invention include the non-optimal dimensions of the depression chambers in length, the insufficient duration of depression, the non-optimal use of the potential energy of the hydrodynamic system "well - multi-element depression projectile - productive formation" for the most effective cleaning of the borehole zone from the mud and the possibility of the formation of a hydrorepression pressure pulse providing hydraulic fracturing layer.

SUMMARY OF THE INVENTION The device consists of a device head, a remote control unit, a trigger, a multi-element depression projectile in the form of two or more receiving valve filters, interconnected by depression chambers with atmospheric pressure into a single system with a common pneumohydrochannel, a case gas generator and an autonomous registration unit for creating in the interval productive stratum adjustable in length and controllable in magnitude and duration of the zone of depression and the creation of multiple markers hydrodynamic effects on the productive reservoir with hydrostatic pressure removed to weaken the cohesion of rock particles, tearing and extracting the clogging material with rock elements by a depressed fluid inflow from the formation for effective cleaning of perforation channels and stimulation of oil and gas inflow with subsequent transfer of the depressive regime to hydropercussion due to the fall of the column downhole fluid in the "zone of reduced pressure" to reveal existing and the formation of new cracks from the locale the use of fracturing zones and their binding to the geological section of the well and the possibility of creating a synergetic hydro-shock and gas-dynamic pressure pulse for fracturing when cracks are fixed by particles of destroyed rock with the formation of a repression-depression wave process in the infrasonic frequency range with the aim of involving capillary-pinch-free oil-containing zones in the development when registering the dynamics of pressure changes in the well with autonomous digital manometers.

The device allows to provide without packer systems an effective way to intensify oil and gas inflow, clean the perforation channels with the extraction of colmatant and rock particles by creating a controlled three-dimensional depression in the zone that covers the entire processed interval with the predominant fluid flow from the reservoir by increasing the total area of the receiving valves to values that are multiple exceeding the gap between the depression and the well with the formation of a synergistic hydro-gas-dynamic impulse pressure for fracturing with natural fracturing particles shattered rock.

The device can be used in a variety of configurations according to the number of intake valve filters and depression chambers, with or without a body pressure gas generator, depending on geological conditions and tasks to be solved with various starting devices and systems for automatically initiating the ignition of pressure gas generator charges depending on the technology of work - on a geophysical cable or pipes.

The aim of the invention is to achieve a technical result - the intensification of oil and gas wells through the use of devices on a cable with multi-element depressive systems to create a hydropercussion fluid flow from the formation with multiple alternating effects to extract contamination products from rocks from rock perforations and intensify oil and gas inflow by hydrodynamic fracture productive formations with localization of zones of cracking and tethering their to the geological section of the well with minimal material and labor costs.

The technical result is achieved by the fact that in the device lowered on the geophysical cable to intensify the operation of oil and gas wells, a device consisting of a tool head, a remote control unit, a trigger mechanism, a depression projectile in the form of two or more receiving valve filters interconnected by depression chambers, is used according to the first embodiment, a device comprising a geophysical cable for lowering the device It consists of a device head, a remote control unit, a trigger, a depression projectile in the form of two or more receiving valve filters, interconnected by depression chambers with atmospheric pressure and an autonomous registration unit, characterized in that a multi-layer load-bearing geophysical cable with a bursting structure is used strength up to 250 kN and a diameter of 12 to 28 mm, for delivery of the device to vertical and directional wells [18, 19], monitoring change fluid level in the well and linking the location of the device to the geological section using the gamma method using sensors of the remote control unit, while for launching the multi-element depressive projectile remotely, a trigger device in the form of an electrohydromechanical valve is used, when opened by the action of hydrostatic pressure, the upper receiving valve filter is opened depressive projectile followed by automatic opening of all lower located receiving valves filters of pneumohydro-balanced design with passageways with a diameter of 30-56 mm and a common pneumohydrochannel from depression chambers, 1.5-3 m or more in length, providing a coefficient of opening of each chamber up to 0.75 of the cross-sectional area and creating a depression zone in the well up to 100 meters or more, with a magnitude of depression of up to 0.9 R _gst and a duration of depression of 0.6-3.5 s or more with multiple, by the number of valves used, alternating hydrodynamic effects in the range from 1.5 to 10.0 MPa when the hydrostatic pressure is removed and the coefficient of impact on the formation is _Kp 4.5 and more, determined by the ratio of the total area of the passage channels of the receiving valve filters to the area of the gap between the depressant device and the well, to create a hydropercussion effect on the perforated interval of the falling column of the well fluid with a pressure pulse 1, 5-2,5 R _GTS fracturing order to form a depression-wave process repressionnogo infrasonic frequency range when registering dynamic parameters waves digital pressure gauges with a measuring frequency of 8.0-10.0 thousand per second, while the receiving valve cassettes located in the zone of the reservoir and the lower depression chamber are used as containers for collecting and lifting to the surface the colmatant and mountain samples extracted from the reservoir breed.

When developing the device, multifunctional receiving valve systems of a pneumohydro-balanced design with flow channels with a diameter of 7 to 56 mm were used with the ability to quickly install the required functional valve of the corresponding diameter to achieve the required depression and the coefficient of impact on the formation.

To launch a multi-element depression projectile, an electro-hydromechanical method was applied, which is implemented using a trigger mechanism, which provides, under the hydrostatic pressure of the well fluid, the opening of the receiving valve filter of the upper depression chamber with the subsequent successive opening of the receiving valve filters of all downstream depression chambers, and it is possible to use the lower receiving valve to start the gas generator automatic ignition system charge guide housing gasifier pressure.

In order to increase safety during work, gas-generating charges for case-type gas generators were used high-energy, non-detonating mixture mixtures based on perchlorate or potassium nitrate and other gas-generating compositions, which ensure high pressure increase rates during the combustion process, which allow achieving a controlled charge value and cyclic dynamics of exposure the pressure values to values of 4.0-5.0 R _GTS for certain disclosures existing and creating new and more prot conjugated filtration channels in the reservoir.

Obtaining the maximum values of the depressive effect in the required interval with the minimum volumes of the depression chambers is achieved by the use of a multi-valve system with a common pneumohydrochannel, which provides an almost instantaneous opening of the depressive projectile with atmospheric pressure with an opening coefficient of each chamber up to 0.75 of the cross-sectional area and with an exposure coefficient on the reservoir (the ratio of the cross-sectional area of the receiving valve filters to the gap area of the depression projectile with the well) from 1 to 4 , 5 or more, which allows, sequentially filling depressive chambers with well fluid, to create a “reduced pressure zone” in the well in the range of a multi-element depressive projectile reaching up to 100 meters or more and is a prerequisite for the preferential flow of fluid from the reservoir and the formation of directed hydropercussion impact on the perforated zone of the reservoir due to the fall of the column of well fluid in the "zone of reduced pressure" created by many lementnym depression energy projectile with a concentration in the range of the lower valve depression projectile using a fixed downstream fluid column in the wellbore as gidroupora to generate pressure pulse directed to the producing formation.

Information support for hydrodynamic fracturing is carried out using a gamma sensor and a pressure sensor of the remote control unit, used to link the location of the device to the geological section, to control changes in the liquid level in the well and the magnitude of shock loads on the load-carrying path during operation of the device and autonomous digital manometers providing registration pressure charts in real time with a resolution of up to 8.0-10.0 thousand counts per second, fixing amplitude and wave hydrodynamic parameters of the process, which are allocated cracking zone and estimated efficiency fracturing. The autonomous pressure gauge is mounted below the depression chambers or below the gas generator when the device is assembled in combination with a gas generator.

The success of water hammer treatments depends on the retention time of microcracks during water hammer in the open state. From literary sources it is known that this time should provide the ability to fill cracks with a working fluid. For the successful use of water hammer in the processing of the near-wellbore zone, the time of exposure to high pressure should be at least 0.2-0.5 seconds, which is necessary for crushing the working fluid into the cracks and their subsequent expansion [20, p. 173, 177]. In the proposed depressive-hydrodynamic method of influencing the reservoir, the high-pressure time is 0.6-3.5 seconds, allowing, taking into account the inertia of the hydrodynamic system, to apply the amplitude parameter of hydroshock impact, fixing the opening of cracks by a local decrease in pressure P _gdv to values of P _gst and lower, for identification of crack opening zones during registration of pressure diagrams in real time by autonomous digital pressure gauges.

It is known that the cyclic dynamics of loading rocks with pressure pulses is most effective for reducing the strength of rocks, breaking, opening and creating new cracks [20, p. 179].

Laboratory studies have found that with repeated hydraulic loading of rock samples, the ultimate stresses naturally decrease and the greatest decrease in shear stresses is manifested at the second impact pulse. After six to seven pulses, the shear stresses differ from the initial ones by 60-65%. The cohesive force of rock particles sharply decreases already after the first impulse, and after six impulses decreases to 0.05 MPa [20, p. 179, 180]. In the proposed device and method of depressive-hydrodynamic effects on the reservoir, a multi-valve depressive complex is used, which ensures the creation of a depressed zone (three-dimensional depression) with multiple (up to 9 or more) alternating pressure effects in the borehole, controlled by the magnitude, duration and duration of the depression in the range from 1.5 to 10.0 MPa with hydrostatics removed to weaken the strength properties of rocks with the aim of subsequent extraction of the clogging material and part rock inflow of hydraulic fluid from the reservoir through perforations in the valve channels depression projectile.

The effectiveness of hydro-gas-dynamic effects on the reservoir is largely determined by the hydrodynamic perfection of the well. It is known that with a total area of perforations of more than 25% of the total surface of the pipe, a pressure impulse passes unhindered through the perforation interval. A decrease in the total area below the indicated value noticeably transforms the pressure pulse in terms of the absolute value and nature of the effect. The hydrodynamic perfection of the opening of the reservoir depends not only on the density of the perforations, but also on the depth of the perforation channels, their location along the column, type of collector and other factors [20, p. 174]. Therefore, prior to carrying out hydro-gas-dynamic fracturing, the quality of the secondary opening of the productive formation is assessed by the perforation density and the opening surface and, with the formation opening surface with perforation channels of less than 1000 cm ² / m perforated interval, additional perforation of cumulative channel perforators with an input diameter of 8-26 mm and a depth of 250-1000 mm to increase the formation opening surface to 2000 cm ² / m or more.

Hydro-gas-dynamic fracturing is recommended on a geophysical cable with high tensile strength (120-250 kN) and high enough stiffness to move the gas generator into directional wells with zenith angles of up to 90 ° and prevent emergency situations. This cable consists of three or more insulated current-carrying conductors, covered with two or three pairs of armor layers with oppositely directed coils of wires in each pair, the second and third pair of armor layers made of wire, the diameter of which is 1.3-2.5 times larger the diameter of the wires of the first pair of layers of the armor, with a coating of plastic adhesive material filling the gaps between the wires of the armor under pressure over each pair. The outer diameter of the cable is calibrated over its entire length in the range of 12-28 mm, and up to 75% of the wires are cut off with a uniform shift of the cutoff points along the section of the load-carrying part of the cable, designed to work in the inclined and horizontal parts of the well, starting from the second or third layer of armor the length of the section when moving from the lower layer to the upper, and the remaining wires form a reinforcing cage for polymer shells, ensuring a reduction in the specific gravity of the cable in this section to 30%, and in the upper layer of the armor of the wire m Gut be stacked without clipping over the entire length of the cable at regular intervals between the wires with a reduction to 50% of the density of laying wires in the layer, the interstices between the wires are filled with polymeric material during the deposition of the outer polymeric membranes [18, 19].

According to the first embodiment of the device, the technical result is achieved by applying a method of intensifying the operation of oil and gas wells, including installing the device on a geophysical cable in the interval of a productive formation exposed by perforation, actuating a multi-element depression projectile, characterized in that additionally cumulative perforation is performed to provide an opening surface formation to 2000 cm ² / m or more perforations with inlet diameter 8-26 mm and a depth of 250-1000 mm, and as Ener The potential energy of the hydrodynamic system “well - multi-element depressive projectile-reservoir” was applied based on the creation of the hydrodynamic system. in the range from 1.5 to 10.0 MPa with hydrostatic pressure removed in order to cause oil and gas ka and a multiple weakening of the adhesion of colmatant and rock particles with a controlled coefficient of impact on the formation for effective cleaning of perforation channels with the extraction of colmatant with rock particles and subsequent hydropercussion on the perforated interval with a falling column of well fluid with an energy concentration in the interval of installation of the lower valves of the depression shell, using the downstream fixed fluid level as a hydraulic seal to create a directional impulse pressure to the productive formation in order to reveal existing and the formation of new cracks during their natural fixing by rock particles as a result of its irreversible deformation during cyclic dynamics of pressure pulses with the formation of a depression-repression wave process in the infrasonic frequency range in the wellbore, filtration channels and open pores a productive reservoir for involvement in the development of capillary-pinched oil-saturated areas.

Manifestations of oil and gas inflow caused by breakthroughs of dissolved hydrocarbon gas in the form of dynamic anomalies lasting 0.2-6.0 ms and amplitude up to 5-10 MPa under conditions of maximum values of depression at 0.2-0.4 P of gas _saturation with hydrostatic pressure removed, clearly recorded on pressure charts recorded by high-frequency digital manometers in real time during the operation of the device (Appendices No. 1, 2, 4).

The use of three-dimensional depression with a controlled magnitude, zone extent and duration of action with multiple (in terms of the number of valves used) alternating hydrodynamic effects on the perforated interval of the reservoir in the range from 1.5 to 10.0 MPa with hydrostatic pressure removed in combination with microexplosions with pressures up to 5-10 MPa, due to breakthroughs of dissolved hydrocarbon gas, providing a multiple weakening of the adhesion of colmatant and rock elements, creates the necessary conditions I to efficiently clean the filtration channels with the extraction of colmatant and rock elements by the depressive fluid inflow from the reservoir through the perforations into the valve channels of the depression shell and then extracting them to the surface for laboratory analysis in order to study the current state of development of the oil field. Rock samples selected by the hydrodepression method during the testing of the device are shown in Appendix No. 3.

By opening the lower intake valve and filling the lower depression chamber, the depression half-cycle of the depressive-hydropercussion wave action is completed with hydrostatic pressure removed and a hydropercussion half-cycle is formed with a duration of 2 to 5 s, characterized by a sharp increase in pressure up to 1.5-2.5 P _gst caused by the fall of the column downhole fluid into the zone of the reservoir, perforated, creating the necessary physical conditions for the microwave reflection of the dynamic parameters of the productive th layer exposed by perforation. By the amplitude parameter of hydroshock impact, zones are clearly distinguished due to different permeability and density, local microcracks with high hydroshock energy absorption properties obtained during the testing of the device are recorded, are given in Appendix No. 1. When processing pressure diagrams recorded by autonomous pressure gauges in real time, in combination with the results of geophysical studies, it is possible to link the identified fractures to the geological section of the well.

The high efficiency of hydro-gasdynamic fracturing of a productive formation at low material and labor costs lies in the fact that through the cyclical application of gas-generating devices lowered into the well on a geophysical cable, a method is implemented, characterized in that a three-dimensional depression is created with a controlled value, duration and duration of action, which is energy basis for hydropercussion on the perforated interval with a falling column of well fluid with sufficient energy to locally open cracks or synergistic hydro-gas-dynamic effects to create new filtration channels in the formation with the formation of a two-level wave effect on the productive formation in the infrasonic frequency band in the range from 0.1 to 0.9 P _gst with removed hydrostatic pressure and from 1.5 -4.0 P to 0.6-0.7 P _{GTS GTS} under hydrostatic action with accompaniment information reflecting real-time the entire process from hydrodynamic shutter device into the well to rise to overhnost to document and assess the effectiveness of the work performed.

According to the second embodiment, a device is used to intensify the operation of oil and gas wells, including a geophysical cable for lowering the device and consisting of a device head, a remote control unit, a trigger mechanism, a depression projectile in the form of two or more receiving valve filters interconnected by depression chambers with atmospheric pressure, case gas pressure generator and autonomous registration unit, characterized in that a load-bearing geophysical cable with a multilayer cable is used structures with a tensile strength of up to 250 kN and a diameter of 12 to 28 mm, for delivering the device to vertical and directional boreholes, linking the device location to the geological section using the gamma method and monitoring fluid level changes using sensors of the remote control unit, for this, to launch the multi-element depressive projectile remotely, a trigger device in the form of an electro-hydromechanical valve is used, when it is opened under the influence of hydrostatic pressure I provide the opening of the upper receiving valve filter of a depression projectile with the subsequent opening of all lower located receiving valve filters of a pneumohydro-balanced design with passage channels with a diameter of 30-56 mm and a common pneumohydrochannel from depression chambers, 1.5-12 m or more in length, providing an opening coefficient of each chamber to 0.75 of the cross section and creating a depression in the borehole zone extending up to 100 meters or more, with the magnitude of depression 0.7-0.9 P _GTS and duration dei tviya depression 0,6-3,5 sec or more during repeated according to the number of valves applied, alternating hydrodynamic forces in the range of 1.5 to 10.0 MPa, and a controlled coefficient stimulation K _sn to 4.5 or more, determined by the ratio of the total area of the passage channels of the intake valve filters to the area of the gap between the depressant device and the well, with the subsequent formation of hydropercussion on the perforated interval by the falling column of the borehole fluid while the lower valve filter is simultaneously launched adiabatic or cumulative ignition systems of the gas-generating charge of the pressure vessel gas generator to create an aggregate hydro-gas-pulse pressure of up to 4.0-5.0 P _gst for opening existing and the formation of new cracks during their natural fixing by rock particles as a result of irreversible deformation under cyclic dynamics of pressure pulses with the formation of a depression-repression wave process in the infrasonic frequency range during registration of dynamic parameters during ln autonomous digital manometers with a measurement frequency of 8.0-10.0 thousand per second.

In the second embodiment, a method of intensifying the operation of oil and gas wells is used, including analyzing the state of the secondary opening of the reservoir and performing additional perforation, installing a device for intensifying the operation of oil and gas wells in the perforation interval on a geophysical cable, actuating a depression projectile with a case pressure gas generator, characterized in that evaluate the quality of the producing formation of secondary opening and opening at the surface of at least 1000 cm ² / m perforated int tearing, produce further charges cumulative penetration depth perforations 250-1000 mm where the diameter of holes in the column 8-26 mm for opening the reservoir to the surface 2000-2200 cm ² / m, followed by the creation of multi-element projectile depression depression zone controlled by the magnitude, time, the action and the coefficient of impact on the reservoir with depression to create a hydropercussion effect on the perforated interval by the falling column of the borehole fluid with enhanced gas-dynamic effect for a synergetic pressure pulse is 2-3.5 times higher than the fracture pressure to open existing and the formation of new fractures when they are naturally fixed by rock particles with localization of fracture zones and their binding to the geological section of the well and the formation of a depression-repression wave process in the infrasonic frequency the range for involvement in the development of stagnant oil-saturated areas with documenting the process and assessing the completion of the fracture by dynamic parameters iagramm pressure recorded by autonomous digital pressure gauges.

The device according to the first embodiment is shown in figure 1. It consists of a load-bearing geophysical cable 1, cable lug 2, instrument head 3, remote control unit 4, trigger 5 with a start valve 6, an upper intake filter with a valve 7, a housing 8 and a depression chamber 9, a second receiving filter with a valve 10, the housing 11 and the depression chamber 12, the third receiving filter with the valve 13, the housing 14 and the depression chamber 15, to which the adapter 16 is connected gauge block 17 with a plug 18. Depression chambers 9, 12, 15 are made of pump-compressor GOVERNMENTAL pipes. Structurally, the trigger valve and the intake filter valves 6, 7, 10 and 13 are made in a hydraulically balanced design of atmospheric pressure to hydrostatic. Sealing of individual components of the device is carried out using sealing rubber rings.

Preparation of the device for operation is carried out in the following sequence.

A block assembly of each receiving filter 7, 10, 13 is carried out by installing in the valve bodies and connecting the bodies to the depression chambers 9, 12, 15. A pressure gauge block 17 is connected to the lower depression chamber 15 body. All receiving filter blocks are designed to be gripped and mounted on wellhead using an elevator. The layout of the device begins with the installation of an lower intake filter assembly with a manometric unit using an elevator at the wellhead. The second block of the intake filter 10 is captured by the second elevator and the depression chamber 12 is connected in a vertical position with the housing of the lower intake filter 13. After that, the lower elevator is released to capture the next block of the intake filter, and the assembled assembly is installed on the mouth at the upper elevator. After connecting in the same way and installing the upper intake filter 7 at the wellhead, the trigger device 5 is assembled to it with the trigger valve 6, remote control unit 4 and head 3. The device is connected to the geophysical cable 1 using cable lug 2. In this form, the device’s layout sinks into the well.

The device operates as follows. During the descent into the well, using the sensors of the remote control unit, the fluid level in the wellbore is monitored, and the gamma sensor accurately sets the device in the processing interval with reference to the geological section. After the device is installed in the required interval, an electric current is supplied through the cable to the electro-hydromechanical starting system, with which the starting valve 6 is opened and the borehole fluid is accessed to the upper valve filter 7. Under the influence of hydrostatic pressure, the upper valve filter 7 and all the lower receiving filter valves are opened 10, 13, creating a depressive decrease in pressure in the area of the device.

Registration of pressure in the well is carried out using stand-alone digital pressure gauges installed in the manometer block 17.

The dynamics of pressure changes in the well, which reflects the entire technological process of the depressive-hydropercussion wave action on the reservoir from the start of the gas generator to the complete attenuation of the wave oscillations with reflection of alternating effects when the hydrostatic pressure is removed with breakthroughs of dissolved hydrocarbon gas and zones of local crack opening during hydropercussion, recorded by autonomous digital manometers in real time and being documentary evidence of ying works in well with the device of the first embodiment shown in Annex №1.

The diagram of the pressure of the breakthrough of hydrocarbon gas from capillary pinched oil-containing zones, reaching 0.5-9.3 MPa, under conditions of alternating dynamic pressure on the reservoir at hydrostatic pressure removed, recorded during testing of the device, is given in Appendix No. 2.

Rock samples selected by hydrodepression method from productive strata of production wells are given in Appendix No. 3.

The device according to the second embodiment is shown in figure 2. It consists of a load-bearing geophysical cable 1, cable lug 2, instrument head 3, remote control unit 4, trigger 5 with a start valve 6, an upper intake filter with a valve 7, a housing 8 and a depression chamber 9, a second receiving filter with a valve 10, a housing 11 and a depression chamber 12, a third receiving filter with a valve 13 with a housing 14 and an adiabatic igniter 15, to which a housing 18 of a pressure gas generator 23 with a gas-generating charge 21 is connected to the coupling 18. To exit gaseous products There are longitudinal windows 22 in the pressure generator housing 23 of the pressure generator 23. A pressure gauge block 25 with a plug 26 is connected to the pressure generator housing by an adapter 24. A differential piston 16 is installed in the adiabatic igniter case 15 with a multiple ratio of working surfaces, creating a multiple increase in the pressure of the gas-air mixture under working piston 17 to provide the required pressure and temperature to rupture the support-sealing disk 19 and ignite the gas-generating charge 21. Position claim 19 is fixed a threaded sleeve 20. The depression chambers 9, 12 are made of tubing. The trigger valve and the intake filter valves 6, 7, 10 and 13 are made in pneumohydraulic balanced design. Sealing of individual components of the device is carried out using sealing rubber rings.

Preparation of the device for operation is carried out in the following sequence.

Using the adapter 24, a pressure gauge block 25 with installed autonomous digital pressure gauges connected with a plug 26 is connected to the body of the pressure generator 23. A gas generating charge 21 is installed in the form of solid fuel gas-generating checkers of cylindrical shape from non-detonating high-energy mixtures of the required type from the other end to the pressure generator body 23 volume according to the geological conditions of the work and with the help of the coupling 18 is connected adiabatic igniter The property 15 is assembled with a differential piston 16, a working piston 17, a support-sealing disk 19 with a sleeve 20 connected to the housing 14 and the valve filter 13. The assembled arrangement of the manometer block 25, the gas generator 23 with the adiabatic igniter 15, the housing 14 and the valve filter 13 using the elevator is installed at the wellhead. The second block of the intake filter 10 is captured by the second elevator and in a vertical position the housing of the depression chamber 12 is connected to the housing of the lower intake filter 13, followed by block mounting of the intake valve filter 7 with the valve filter 10 and the connection of the trigger 5 with the remote control unit 4 and head 3. K to geophysical cable 1, the device is connected using cable lug 2.

The device operates as follows. During the descent into the well, using the sensors of the remote control unit, the fluid level in the wellbore is monitored, and the gamma sensor accurately sets the device in the processing interval with reference to the geological section. After the device is installed in the required interval, an electric current is supplied through the cable to the electro-hydromechanical starting system, with the help of which the starting valve 6 is opened and the borehole fluid is accessed to the upper valve filter 7. Under the action of hydrostatic pressure, the upper valve filter 7 and all the lower receiving filter valves are opened 10, 13, creating a depressive decrease in pressure in the area of the device. When the inlet valve 13 is opened under the action of hydraulic pressure by the differential piston 16 by means of the working piston 17, an air-gas mixture pressure is created under it, which is several times higher than the external hydroshock impact, providing the required temperature and pressure to rupture the support-sealing disk 19 and ignite the gas generating charge 21 of the case pressure generator 23 for the purpose of creating a high pressure pulse in the area of the device in the well with gaseous products of combustion, leaving them through the longitudinal windows 22. The dynamics of the pressure in the well, reflecting the entire hydrodynamic process is carried out using stand-alone digital pressure gauges installed in the manometer block 25.

The device according to the third embodiment is shown in figure 3. It consists of a load-bearing geophysical cable 1, cable lug 2, instrument head 3, remote control unit 4, trigger 5 with a start valve 6, an upper intake filter with a valve 7, a housing 8 and a depression chamber 9, a second receiving filter with a valve 10, a housing 11 and a depression chamber 12, a third receiving filter with a valve 13, a housing 14 and a hydropercussion device 15 with a cumulative igniter 17, to which a pressure gas generator housing 24 with a gas-generating charge 22 is connected to the coupling 19. the outlet of the gaseous products of the combustion of the charge 22 in the housing of the generator 24 is provided with longitudinal windows 23. The gauge block 26 with a plug 27 is connected to the housing of the pressure generator by a sub 25. In the housing of the cumulative igniter 17, a cumulative charge 20 with a mechanical detonating device 18 and a striker 16. A seal of the cumulative charge -Igniter 20 is carried out by a support-sealing disk 21. Depression chambers 9, 12 are made of tubing. The trigger valve and the intake filter valves 6, 7, 10 and 13 are made in pneumohydraulic balanced design. Sealing of the remaining components of the device is carried out using sealing rubber rings.

Preparation of the device for operation is carried out in the following sequence.

A pressure gauge unit 26 with installed autonomous digital pressure gauges connected with a plug 27 is connected to the body of the pressure generator 24 with the help of an adapter 25. At the other end, a gas-generating charge 22 is installed in the form of solid-fuel gas-generating checkers of cylindrical form from non-detonating high-energy mixed compositions in the required form volume according to the geological conditions of the work and connects the igniter 17 assembly with cumulative charge poison 30, a mechanical type 18 detonating device, a water hammer device 15 with a hammer 16 connected to the housing 14 and the valve filter 13. The assembled arrangement of the pressure gauge block 26, the gas generator 24 with the cumulative igniter 17, the hydraulic hammer 15, the housing 14 and the valve filter 13 using elevator is installed at the wellhead. The second block of the intake filter 10 is captured by the second elevator and in a vertical position the housing of the depression chamber 12 is connected to the housing of the lower intake filter 13, followed by block mounting of the intake valve filter 7 with the intake valve filter 10 and connecting the trigger 5 with the remote control unit 4 and head 3. The device is connected to the geophysical cable 1 using a cable lug 2.

The device operates as follows. During the descent into the well, using the sensors of the remote control unit, the fluid level in the wellbore is monitored, and the gamma sensor accurately sets the device in the processing interval with reference to the geological section. After the device is installed in the required interval, an electric current is supplied through the cable to the electro-hydromechanical starting system, with the help of which the starting valve 6 is opened and the borehole fluid is accessed to the upper valve filter 7. Under the action of hydrostatic pressure, the upper valve filter 7 and all the lower receiving filter valves are opened 10, 13, creating a depressive decrease in pressure in the area of the device. When the receiving valve 13 is opened under the influence of hydrostatic pressure, the hammer 16 impacts the mechanical fuse 18, initiating high-speed detonation in it to initiate a cumulative charge-igniter 20, which ensures reliable ignition of the gas-generating charge 22 of the case pressure generator 24 to generate a pulse using a deep-penetrating cumulative jet high pressure in the area where the device is located in the well, with gaseous products of combustion exiting through lobed window 23. Dynamics of changes in pressure in the well showing the entire hydrodynamic process by using independent digital pressure gauges installed in the gauge block 26.

The dynamics of depressive hydro-gas impact on the reservoir by devices according to the second and third options for creating a total hydro-gas impulse pressure up to 4.0-5.0 P _gst in order to reveal existing and the formation of new cracks with the formation of a depression-repression wave process in the infrasonic frequency range during registration dynamic wave parameters by autonomous digital pressure gauges with a measurement frequency of 8.0-10.0 thousand per second are given in Appendix No. 4.

Information sources:

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Claims (8)

1. A device for intensifying the operation of oil and gas wells, including a geophysical cable and consisting of an instrument head, a remote control unit, a trigger mechanism, a depression projectile in the form of two or more receiving valve filters, interconnected by depression chambers with atmospheric pressure, and an autonomous registration unit, characterized in that the receiving valve filters of a pneumohydro-balanced design with passage channels with a diameter of 30-56 mm and a common pneumohydrochannel from depression are used ion chambers, each of which is 1.5-3 m or more in length, ensuring the sequential opening of all valve filters in automatic mode and the creation of a depression zone in the well with a length of up to 100 m or more, controlled by the number of receiving filters and depression chambers, with a depression value of the range of 0.1-0.9 P _gst , the duration of the depression of 0.3-3.5 s or more with a controlled coefficient of impact on the reservoir K _VP equal to 4.5 or more, estimated by the ratio of the total area of the receiving valve filters to the area of the gap between an impression device and a well, while the receiving valve cassettes and the lower depression chamber are used as containers for collecting and lifting to the surface the mud and rock samples extracted from the formation, and an electro-hydraulic valve is used as a trigger, when it is opened under hydrostatic pressure, opening of the upper intake valve filter with automatic opening of all lower receiving filters to create a hydraulic impact Ia incident on the perforated interval of the wellbore fluid column 1.5-2.5 P _GTS pressure pulse, followed by formation of a depression-repressionnogo process infrasonic wave frequency band during the registration of pressure change dynamics autonomous digital devices in real time with steps of 8,0-10 , 0 thousand measurements per second, while in order to ensure emergency stability and advance the device in wells with zenith angles of up to 90 ° or more, a multilayer geophysical cable was used with a diameter of 12-28 mm with a tensile strength of 120-250 kN. 2. A device for intensifying the operation of oil and gas wells, including a geophysical cable and consisting of an instrument head, a remote control unit, a trigger mechanism, a multi-element depression projectile with a body pressure gas generator and an autonomous registration unit, characterized in that a load-bearing geophysical cable with a multilayer structure with a diameter of 12- 28 mm and tensile strength up to 250 kN for device delivery to vertical and directional wellbores, binding the location of the device to the geological section using the gamma method and monitoring the change in liquid level using the sensors of the remote control unit, while for the remote launch of a multi-element depression projectile, an electro-hydraulic valve is used, when opened under the influence of hydrostatic pressure, it is possible to open the upper intake valve filter with subsequent automatic opening all lower positioned intake valve filters of pneumohydro-balanced equipments sections with passageways with a diameter of 30-56 mm with a common pneumohydrochannel from depression chambers, 1.5-12 m long, providing a coefficient of opening of each chamber up to 0.75 of the cross-sectional area and creating a depression zone in the well with a length of up to 100 m and more, with a magnitude of depression of 0.7-0.9 P _gst and a duration of depression of 0.3-3.5 s or more with an impact coefficient on the formation K _{vp of} up to 4.5 or more, determined by the ratio of the total area of the passage channels of the receiving valve filters to the area of the gap between the depressive system well, and the lower valve filter, combined with an adiabatic igniter, in the automatic mode by means of a differential piston provides the ability to create the required temperature and pressure to rupture the support-sealing disk and ignite the gas-generating solid fuel charge of the case gas generator to create a directed synergistic impact on the perforated interval reservoir by the falling column of the well fluid in conjunction with gas ical impact and the subsequent formation of the depression-repressionnogo wave process in the infrasonic frequency range with the registration of the pressure change dynamics in real time autonomous digital pressure gauges with a frequency of 8.0-10.0 thousand measurements per second. 3. A device for intensifying the operation of oil and gas wells, including a geophysical cable and consisting of an instrument head, a remote control unit, a trigger mechanism, a multi-element depression projectile with a body pressure gas generator and an autonomous registration unit, characterized in that a load-bearing geophysical cable with a multi-layer construction with a diameter of 12- 28 mm and tensile strength up to 250 kN for device delivery to vertical and directional wellbores, binding the location of the device to the geological section using the gamma method and monitoring the change in liquid level using the sensors of the remote control unit, while for the remote launch of a multi-element depression projectile an electro-hydraulic valve is used, when opened under the influence of hydrostatic pressure, the upper intake valve filter is opened with subsequent automatic opening of all below located receiving valve filters of pneumohydro-balanced design with pass bottom channels with a diameter of 30-56 mm with a common pneumohydrochannel from depression chambers, 1.5-12 m long, providing a coefficient of opening of each chamber up to 0.75 of the cross-sectional area and creating a depression zone in the well with a length of up to 100 m and more, with a value depression of 0.7-0.9 P _gst and the duration of depression of 0.3-3.5 s or more with a coefficient of impact on the reservoir K _VP up to 4.5 or more, determined by the ratio of the total area of the passage channels of the receiving valve filters to the area of the gap between depression and squaw while the lower valve filter, combined with a hydraulic hammer, in the automatic mode by means of a mechanical fuse, is capable of initiating a cumulative charge-igniter of the gas-generating solid fuel charge of the body gas generator to create a directed synergistic impact on the perforated interval of the reservoir by the falling column of the well fluid in combination with gas exposure and subsequent formation of depression-repression ion wave process in the infrasonic frequency range with the registration of the dynamics of pressure changes in real time by autonomous digital manometers with a measurement frequency of 8.0-10.0 thousand per second. 4. A method of intensifying the operation of oil and gas wells, including installing the device on a geophysical cable in the interval of the reservoir, opened by perforation, actuating a depression projectile, characterized in that the potential energy of the hydrodynamic system "well-multi-element depression projectile" is used allocated by creating a multi-element depression projectile of depression with a controlled value, the extent of the zone and the duration of action During repeated alternating action on the reservoir to clean the filtration channels and subsequent hydropercussion on the perforated interval with the falling column of the borehole fluid with an energy concentration in the interval of installation of the lower valves of the depressive projectile, using the downstream fixed fluid level as a hydraulic seal to create a directed pressure pulse on the reservoir disclosure of existing and the formation of new cracks in the natural consolidation of their parts rocks as a result of irreversible deformation during cyclic dynamics of pressure pulses with the formation of a depression-repression wave process in the infrasonic frequency range with registration of dynamic wave parameters to document and evaluate the completeness of work, for which use the device according to claim 1. 5. A method of calling an oil and gas inflow from exploited formations of a developed field, including installing the device on a geophysical cable in the interval of a productive formation uncovered by perforation, actuating a depression projectile and creating depression, characterized in that a multi-valve depression projectile is used to create depression with multiple alternating dynamic effects a perforated productive interval of the formation from the maximum value when the depression 0.2-0.4 P _{sat Nia} gas for deep cleaning of the filtration channels and providing breakthrough of hydrocarbon gas dissolved capillary trapped oily zones of registration mikroproryvov dynamics autonomous digital pressure gauges in real time, for which is used a device according to claim 1. 6. A method of cleaning filtration channels with sampling of rock from operating formations of a developed field, including installing a device on a geophysical cable in the interval of a productive formation uncovered by perforation, actuating a depression projectile and creating depression, characterized in that a multi-valve depression projectile is used to create depression with multiple alternating hydrodynamic effects in the range from 1.0 to 10.0 MPa on the reservoir, perforated channels with an input diameter of 8-26 mm and a depth of 250-1000 mm for multiple weakening of the cohesion of rock particles for subsequent separation and their extraction with a depressant flow of formation fluid into the valve channels of a depression projectile with deposition in valve cartridges, for which the device according to p. one. 7. The method of identifying zones of cracking and tying them to a geological section during hydropercussion impact on the reservoir of oil and gas wells, including installing the device on a geophysical cable in the interval of the reservoir, opened by perforation, actuating a depression projectile and creating depression, characterized in that it creates a depression zone extending up to 100 m or more, with the value of the depression to 0.9 P _GSH and time of action of depression with 0,3-3,5 for creating effects on perforated hydropercussion th interval producing formation falling post wellbore fluid to expand the existing and formation of new cracks, thus to isolate zones cracking applied amplitude parameter of hydraulic impact, the fixing area of the cracks local pressure decrease P _DTG to values P _GTS and below that of the processing in the complex results geophysical surveys can be tied to the geological section of the well, for which use the device according to claim 1. 8. A method of intensifying the operation of oil and gas wells, including installing the device on a geophysical cable in the interval of the reservoir, opened by perforation, actuating a depression projectile with a gas generator, characterized in that the depression zone is controlled in magnitude of P _dep up to 0.9 P _gst and time the effects of depression 0.3-3.5 s with a coefficient of impact on the reservoir equal to 4.5 or more to create a directed hydro-gas dynamic impact on the perforated interval of the reservoir yuschim post wellbore fluid in conjunction with gas-dynamic during automatic startup of the body with adiabatic pressure gasifier or cumulative igniter to create synergistic hydro-pressure pulse to 4.0-5.0 P _GTS for reliable fracturing with natural fracturing the rock particles resulting in irreversible deformation it under cyclic dynamics of the impact with the assessment of the formation response by the amplitude and wave parameters recorded in real time genomic digital pressure gauges, for which is used a device according to claim 2 or 3.

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