Control unit and produced fluid flow meter for multipay well (versions)

IPC classes for russian patent Control unit and produced fluid flow meter for multipay well (versions) (RU 2557023):

E21B47/10 - Locating fluid leaks, intrusions or movements

E21B43/14 - Obtaining from a multiple-zone well

E21B43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells (E21B0043250000 takes precedence;valve arrangements E21B0034000000)

Another patents in same IPC classes:

Portable metering station of extracted well liquid / 2552563

Portable metering station of the extracted well liquid includes a vertically installed cylindrical housing that is stepped and composite - upper and lower, which are fixed with a flange connection. In the upper part of the housing there installed is a separating element - hydraulic cyclone provided with a mist eliminator. A gas control valve is installed above the mist eliminator and interconnected with a gas outlet branch pipe. The latter is interconnected with a gas line with connected measuring instruments - a pressure sensor, a pressure gauge and a weight gauge. An inlet liquid branch pipe is interconnected tangentially with the hydraulic cyclone. An outlet liquid line is provided with a mass meter, a moisture meter and a sampling unit, one of which has manual control. A temperature sensor, an information collection and storage unit, which is electrically connected to the measuring instruments, as well as a drain branch pipe with shutoff valves. The gas control valve operates for closing with a pusher of a float stem, which is installed in a sleeve, with a cone-shaped cover plate mounted concentrically and with a gap inside the lower housing. In the sleeve walls on the level of the cover plate base there are side openings connecting the cavity of the hydraulic cyclone to the cavity of the lower housing. Each of the gas and liquid outlet lines in the zone of interaction with a common manifold is provided with check valves.

Method to measure oil well capacity on group meter stations / 2552511

Measurement of capacity of oil wells connected to a group meter station is carried out by a well switch simultaneously in all connected wells without one in turns and serially, further they determine results of calculation of each well capacity using the formula:

Device for measurement of oil and gas well flow rate / 2548289

Invention relates to the field of oil production and to instrumentation and can be used for measurements of oil and gas well flow rate. The device contains an input pipeline, a separator with a float, a gas pipeline with a gas meter and on-off air operated valve fitted with position locks of and the bellow chamber. The liquid pipeline is fitted with a liquid meter and the same valve. Above-bellow (minus) cavities of chambers of both valves are pneumatically connected a gas spool. To the top cavity of the separator the input channel of the switching device with three output channels is connected pneumatically. One output channel of this device is pneumatically connected to the above-bellow cavity of the valve chamber on the gas pipeline. The second output channel is connected pneumatically to the above-bellow cavity of the valve chamber on the liquid pipeline. The third output channel is connected pneumatically to the gas spool on the output pipeline.

Method for determining volume of consumed liquid / 2547877

Method for determining volume of consumed liquid at pumping from a grouting tank to a delivery line of a pump involves measurement of the number of revolutions of a drive shaft of the pump. From the moment of liquid pumping to the delivery line there additionally measured in the grouting tank is drop in its level in the range sufficient for calculation of a conversion coefficient of the number of revolutions of the drive shaft of the pump to volume of consumed liquid. The current value of volume of consumed liquid is determined depending on surface area of liquid in the tank, drop in level of liquid in the tank, conversion coefficient of the number of revolutions of the drive shaft of the pump to volume of consumed liquid, the number of revolutions of the drive shaft of the pump, which is measured from the moment of completion of measurement of liquid level drop.

Method to measure multi-phase fluid in well / 2544180

Invention relates to production of a well fluid, in particular, to the method of measurement of a multi-phase flow of a fluid using a flow meter. The method includes detection of a multi-phase flow in a flow meter by measurement of fluid pressure in a flow meter and usage of the measured pressure to calculate flow density. The total flow through the flow meter is determined on the basis of the calculated density and PVT of the fluid analysis. The corrected total mass flow is calculated using the correction methodology for sliding of liquid/gas. Flow values are also corrected with account of the flow coefficient in leakage that varies together with variations of the Reynolds number for the fluid. Gas and oil fractions may be determined by the corrected total mass flow rate and value of the gas fraction.

Detection method of gas-saturated formations in wells / 2543399

Method consists in measurements of amplitude values of a geophysical parameter along the axis of a cased string of the well and depth H, on which there detected are maximum amplitude values of the measured parameter, as per which depth of the gas-saturated formation is determined. In the well, under action of difference between formation and wellhead pressures, a gas flow of known velocity V is arranged and time distribution of amplitude values of gas humidity in the same flow is measured, and depth of the gas-saturated formation in the well is determined by the following formula: H=V·t, where t - time of occurrence of maximum at time distribution of humidity amplitude values.

Method of measuring well flow rate of oil well products and device to this end / 2541991

Out of oil well products in the form of oil-water mixture clean water is extracted by the system of siphons due to creation of hydraulic gate for oil and emulsion flow. Oil and emulsion passing through the hydraulic gate are accumulated by switching and creating hydraulic gate for clean water flow for the purpose of further identification by density gage and measurement by volumetric displacement meter. When liquid is accumulated up to certain level hydraulic gate is created for gas flow. Under action of increasing gas pressure liquid is squeezed from settlers when combined flow-rate controller is open. When liquids level drops in settlers the hydraulic gate is removed and gas flow is started through combined flow gage, combined flow-rate controller. Pressure and temperature is measured during discharge to common header. Volume-flow rate is measured for components of oil, emulsion, water and gas. Pressure of the medium is maintained within the specified interval of its values. Parameters are calculated for measurement process and flow rate of oil wells, at that ratios of liquid or gas flow rates to ascending speed of oil and emulsion bubbles in water or gas bubbles in liquid are ensured by selecting cross-section of hydraulic gate tubing. Arrangement where gas line comprises gas flow meter and gas flow regulator. Gas separator in the lower part is coupled to the common head by combined flow gage, combined flow-rate controller and density gage through a buffer tank, which is connected to a separating tank by gas pipeline and liquid pipeline. Separating tank and buffer tank interconnected by gas pipeline form direct and opposite siphon while separating tank and buffer tank interconnected by liquid pipeline form opposite siphon. The buffer tank is coupled to the common head by measuring line. The separating tank is coupled to the main gas line by gas pipeline and to gas separator through a vertical settler and pipeline forming two direct siphons and two opposite siphons. Bafflers are installed in gas separator between the zone of vertical settler and vertical pipeline. The microprocessor is coupled to gas flow meter, gas flow regulator, combined flow gage, combined flow-rate controller and density gage.

Method for determination of flowing intervals in horizontal wells / 2541671

Method lies in simultaneous measurement of temperature and pressure at several depths. At that measurements are performed directly upon start-up of the well till stabilisation of temperature occurs in the well borehole within the period of time t defined as per the following formula

t < \frac{V}{Q} = \frac{π R^{2} L}{Q},

day, where V is volume of the borehole horizontal section within the range of pay thickness, m³; L is length of the borehole horizontal section within the range of pay thickness, m; R radius of the borehole, m; Q is well flow rate, m³/day.

Leak-tightness determination method for underground gas storage facilities with water drive operation mode / 2540716

Stratum is impact cyclically, at that each cycle of impact includes gas injection to the stratum with further gas extraction. The stratum is impacted during 10 cycles at least. In each cycle current formation pressure as well as gas extraction (or injection) volume is measured simultaneously in gas-

(P_{t}^{'' ф''})

and water-bearing

(P_{t}^{'' ф в''})

zone of the storage facility, then considering the measured parameters the design pressure in the underground storage facility

(P_{t}^{'' P''})

is defined for the facility operation mode without gas losses and operation mode with gas losses. Then function (F) is defined as arithmetic mean value of deviations

(P_{t}^{'' P''})

from

(P_{t}^{'' ф''})

, which are received for each i^th measurement for the facility operation mode without gas losses and the function (Fy) for the facility operation mode with gas losses and when inequality Fy<F is satisfied the summary is made about available gas leaks in the storage facility.

Method of determination of filtration rate of formation fluids / 2537446

In killed well temperature is measured, and the temperature change rate is measured in the depth intervals located within the productive formations, and in the depth intervals located in immediate proximity from productive formations. In the depth intervals located within the productive formations, the sections are separated, the temperature change rate in which is much higher than the temperature change rate in the depth intervals located in immediate proximity from productive formations. The numerical model of temperature change in a killed well is developed which takes into account the influence of formation fluid filtering at the temperature change rate in the killed well, the measurements results are compared with the results of numerical simulation and using the best agreement of measurement results and simulation results the filtration rate of formation fluids in the depth intervals located within the of productive formations are determined.

Pipe string system for selective regulation of fluid flows with variable speeds in wells forking from one common wellbore / 2556560

Group of inventions refers to mining and can be used for selective flow regulation in a multilateral well. Pipe string system is formed for selective regulation of separate fluid mix flows with varying speeds for well construction, injection or production of mixes of fluids, gases and/or solid particles that can be injected to, or produced from one or several close zones of ground bore, ground cavern, hydrocarbon or geothermal reservoir. Fluid mix running through radial passage in distribution reducer of the pipe string system between the strings and at least one other pipe can be regulated by at least one flow regulation element connected to a concentric and/or annular passage closest to axis line. Fluid medium transfer can be adjusted selectively in different configurations of one or several mainly hydrocarbon and/or mostly water wells below the common main wellbore and wellhead equipment.

Dual well completion method / 2553710

Method includes mounting in the well of a pump unit consisting of flow column, driven centrifugal pump and reciprocating pump, a cable feeding the electric drive of the centrifugal pump from the ground control station, a packer with cable entry separating strata in a certain interval of the well, and submersible telemetry systems related by a cable with the control station. When mounting is complete, the above pumps are started simultaneously or separately in order to pump out fluid from strata through the flow column to the well surface with potential recording of their flow rates at the control station. Depending on volume of gas extracted by the lower stratum of the well fluid pumping out by the centrifugal pump is made either by direct flow through the flow column or through a nozzle of liquid jet ejector installed downstream the reciprocating pump with potential gas cap releasing from below-packer annulus cavity of the well; to this end turbulent fluid flow at output of the centrifugal pump is transferred to laminar flow. When fluid pressure drops at output of the centrifugal pump and/or power consumed by the pump is exceeded, then underground washing of the centrifugal pump is made. To this end the reciprocating pump and liquid jet ejector are removed from the pump unit by the installation tool and a bypass unit consisting of coaxial pipes with communicating radial channels is installed instead of the ejector. Then from the well mouth along the flow column through coaxial cavity and radial channels of the bypass unit washing fluid is pumped to below-packer annulus cavity of the well; the centrifugal pump is washed under pressure of washing fluid through input module and the used fluid from the latter is directed under remaining pressure through coaxial cavity and radial channels of the bypass unit to the well moth though below-packer annulus cavity of the well. Upon completed washing of the centrifugal pump the bypass unit is dismounted and liquid jet ejector and reciprocating pump are installed at its place, then pumping of the fluid from strata to the well surface is continued.

Method of simultaneous separate or successive production of reservoir fluid from well of multipay fields with preliminary installation of packers / 2552555

Method includes separate run and installation in well of the pipe string with packer system for two production reservoirs comprising packers, between packers pipe, perforated branch pipe and polished insert. At that top packer has directing funnel and maximum possible diameter of the through channel sufficient for pipes and devices assembly passage. Separate run of pipes string equipped with electric submerged pump, tail, bottom secured pump equipment, or remote control unit, or tight or untight casing of the electric drive presented by string of pipes or rods, on which as least one packer separated reservoir liquid flows, controlled electrical or electromechanical valves regulating or disconnecting fluid supply from the reservoirs to the well, units of sensors monitoring work parameters of the reservoirs, sensors are located within the perforation depth of each production reservoir or above perforation depth of each production reservoir. At that pressure and temperature sensors are located under solenoid or electromechanical valves, thus ensuring regulation of the bottom hole pressure and control of the reservoir pressure and temperature. Humidimeters and flowmeters are located above the solenoid or electromechanical valves or under the solenoid or electromechanical valves. Control of the solenoid or electromechanical valves and information exchange with units of sensors of work parameters of the reservoirs are performed over the both separate electric line having at least one core, or as forth core of submersed power cable of the electric pumps, or via separate electric line instead of the forth core of the submerged power cable of the electric pumps, or from "zero point" of the electric submerged pump, or from the remote control system of the electric submerged pump. If electric line is routed over casing of the submerged motor can or can not be used the insert out of electric line with small diameter closed against mechanical damages by the protective enclosure or by protectors, or can be closed or unclosed against mechanical damages by the enclosure installed similarly to the cooling enclosure of the electric-centrifugal pump. The tail can be equipped or unequipped with emergency disconnector with shear elements designed for definite load, with stroke compensator of thermobaric changes of length of pipes string. Based on the data provided by sensors the optimal modes of simultaneous separate or successive operation of the productive well reservoirs are determined. Determination of the optimal operation modes of the reservoirs and their further updating are performed by operation of valve units that control operation of the reservoirs under automatic or manual modes, automatic system of operation control of the well system ensures remote on-line monitoring of the field development system and to make corrections to operation modes of the well reservoirs.

Method of simultaneous-separate liquid injection as per reservoirs with possibility to measure parameters of injected liquid and installation for its implementation / 2552405

Installation comprises underground equipment assembly run in the well using the pipes string, including funnel-positioner, lower packer, reducer-positioner, device of injection distribution, top packer, extension. Device of injection distribution contains casing and removable parts, is equipped with to independent pressure gauge, middle independent pressure gauge, and bottom independent pressure gauge. Top and bottom unions are installed in the removable part of the device of injection distribution with possibility of both unions removal by one round run operation.

Aggregate for dual bed operation in well / 2550633

Aggregate includes lifting string, cable, liner, packers, electric immersed pump with check valve for product extraction with input unit and electric motor, a housing encasing the motor with cable and input unit and connected to the liner featuring several channels each entering a well section, pressure gauges with functional connection to aggregate control unit, switch valve with case and shutting unit, positioned downstream of the housing and connecting a well section with the housing space through respective channel. Switch valve features a stem with lengthwise channel connecting space under the valve to the housing, and the check valve is mounted in the lengthwise stem channel. The stem travels by a limited longitudinal path together with the check valve down under effect of differential pressure in the lift string and liner channel entering a well section, or up under effect of the produced fluid flow. The stem can engage with actuator that can open liner channels in turns while shutting the other channels upon each reciprocal travel of the stem.

Method of extraction of fluid from two layers of one well and pump-ejector unit for its implementation / 2550613

Method comprises pumping oil from a lower layer by the centrifugal pump with feeding under pressure of liquid jet ejector into the nozzle. Using this ejector the oil from the upper layer is simultaneously pumped with oil from the lower layer through the column of oil-well tubing to the wellhead. At that the oil from the lower layer is pumped to the nozzle of the liquid jet ejector with laminar flow of oil flow with low gas content. Pumping oil at the wellhead is carried out with a centrifugal pump with the pressure given by the condition of the pressure distribution on the rise of the oil masses from the lower layer to the nozzle of the liquid jet ejector and oil mixture from both layers along the column of oil-well tubing and the work of the liquid jet ejector. The flow cross-sections of the nozzle and the mixing chamber of the liquid jet ejector are set directly proportional to production rate of the lower layer and the production rate of both layers of the wells, respectively.

Pump packer system for multiple-zone well / 2549946

Pump packer system includes a packer lowered into the well and put between formations and a pump unit above it, which consists of an electric motor with a cable, hydroprotection, telemetering, lower and upper pumps with receiving stations and a casing with a cable entry, the upper end of which envelopes the receiving station of the lower pump, and the lower end is located below the electric motor. The system is provided with a housing and a branch pipe with side outlet channels, the first one of which is connected from above to the lower end of the casing, and the second one is connected from above to the electric motor and from below to the packer. With that, the branch pipe is compacted in the housing and thus disconnects the cavity of the casing from the upper formation and connects it through side outlet channels to the lower formation. With that, the branch pipe is provided for fluid of the lower formation either with a control controlled with the electric motor or with a flow meter or with a mechanical check valve. The upper pump is connected with the receiving station to the lower pump, and the latter that is located above the casing is connected with the receiving station to the hydroprotection of the electric motor. With that, the receiving station of the lower pump is made in the form of an inlet module or a gas disperser, and the receiving station of the upper pump is made either in the form of an inlet module provided with a longitudinal through internal channel for a fluid flow of the lower formation and a cutoff with a side inlet channel for the fluid flow of the upper formation, which is controlled by electric, electromagnetic or hydraulic action, or in the form of an inlet module or a gas separator provided from below with a branch pipe with side outlet channels at backside of the well for fluid flow of the lower formation. The packer is either of mechanical action and is installed by creation on it, without any transfer to the casing, of the specified value of axial load from the weight of the pipe string with further maintenance or removal of this load after tight fit of the packer, or is of hydraulic action, provided with a disconnector and installed between formations before the pump unit is lowered by creation inside the packer of excess pressure, or is of hydrodynamic action and provided inside the well with a pulse tube transmitting discharge pressure of the upper pump to the hydraulic cylinder of the packer, or is of electric or electromagnetic action and is connected to the electric motor.

Downhole pump / 2549937

Proposed unit comprises mouth power unit, downhole hydraulic drive with moving stepped plunger connected with said power unit via hydraulic channels to transmit sign-variable load via drive medium thereto. Downhole pump is connected with flow string. Besides, it comprises extra downhole pump connected with extra flow string. Said plunger represents a three-step design. Hydraulic drive chambers arranged between plunger steps and its case have hydraulic communication with top and bottom borehole displacement pumps. Plunger steps are arranged in separate adjacent chambers connected with drive hydraulic channels. Plunger mid section and extreme sections are sealed at outlet from every adjacent section.

System and method of operation of oil field areas with high watercut / 2549660

Group of inventions relates to oil and gas industry, in particular to operation of the oil fields with high watercut of the produced product. As per this method the total number of field wells with high watercut is determined. Geometrical location of the source deposit in relation to the absorbing horizon is determined for each well. Injectability of the absorbing horizon is determined for each well. Day volume of produced water is determined for each well. Based on the obtained data, at least on the geometrical location of the source deposit in relation to the absorbing horizon, and on condition that injectability of the absorbing horizon exceeds the day volume of the produced water, the type of double action pump system is determined. This is determined for each well on condition to ensure the further injection of the produced water to the absorbing above or below deposit. During injection of the produced water to the above deposit less volume is supplied to the flowline in comparison with volume pumped out using the well subsurface pump unit. Under wellhead tee the additional seal of the wellhead stock is installed to accept pressure. During injection of the produced water to the below deposit the subsurface pump unit is equipped with tail and additional plunger for water linked with main plunger and ensuring the possibility to overcome the absorbing deposit pressure. At least one field well with high watercut is operated using the bottomhole pump unit with definite pump system.

Well tool with sealed channel extending through multiple sections / 2549644

Invention relates to production of hydrocarbons from several beds and to their mixing. Well tool consists of several tubular sections connected by a new thread-less linear connection system. Cylindrical walls of adjacent walls are provided with channel for electrical conductors for connection of electronic components in the tool different sections.

Pipe string system for selective regulation of fluid flows with variable speeds in wells forking from one common wellbore / 2556560

FIELD: oil and gas industry.

SUBSTANCE: group of inventions is referred to versions of a control unit and a produced fluid flow meter for a multipay well. According to the first version the unit comprises a body limited from bellow by a docking device with channels for formation fluid flows and from above by a docking device with adjustable valves installed on it in the quantity equal to that of operated formations. In the body there are interconnected cups, which are coupled hermetically by their hollow butt end to the upper docking device, and cylinders installed by the opposite end in the respective channels of the lower docking device thus forming a tubular annulus and to detached longitudinal channels intended for fluid flows from the respective formations at the wellhead. In the cups there is a crossover seat with radial channels in the cup wall along both sides of the seat. Below the crossover seat from the side of the cup end there are radial channels. Above the crossover seat there is a needle valve made as a slide; at the latter there is a gasket, which facilitates the sealed movement of the needle valve in the cup from an electric drive placed in the sealed part of the cup and fixed in the docking device transferring reciprocal motion to the needle valve in regard to the crossover seat. Electric drives of the needle valves are equipped with devices measuring linear movements of the needle valve with Hall sensors. In the longitudinal channels of the cylinders there are instruments coupled functionally by a cable to a telemetry unit and/or well power supply and/or control point placed in the cup wall so that it may transmit control commands to adjustment valves and data on process parameters of the fluid in the well formations through a cable connector. In the second version of the unit in the cup below the crossover seat there is a channel axial to the crossover seat connecting the longitudinal channel to the tubular annulus and the instruments are placed in the wall of each cylinder and interconnected by a cable in the tubular annulus.

EFFECT: improved reliability for the dual operation of the multipay wells.

4 cl, 2 dwg

Group of inventions relates to the field of oil production, in particular to devices to ensure effective operation of the downhole installations, and can be used for simultaneous-separate operation of multilayer wells.

Known to the control unit, and controlling the production of fluid from multilayer wells in intelligent downhole valve system control the extraction of fluids from several intervals of wells containing at least two annular channel with the possibility of flows of different layers in corresponding concentric channels, and valves adapted to control the flow in each channel. The valves are located in the casing of the wellbore with the selective flow through concentric channels and selective mixing of the flows in the column of pump-compressor pipes. Each channel is associated with the valve with the actuator. The system may further comprise at least one controller with a sensor for measuring at least one parameter of the extracted product, functionally connected with each other, with the possibility of automatic control at least one valve in accordance with the information received from the sensor. The measured parameter may be selected from the group including pressure�, the temperature, chemical composition, water content, pH, solids content, a tendency to the formation of a solid precipitate and the resistivity. The system provides effective selective regulation of flow rate from a large number of layers to mix inside the well by means of valves that are installed inside the well, without significant complications and increase surface and underground layouts. (Patent RU №2320850 C2. Intelligent downhole valve system control the extraction of fluids from several intervals of the borehole, and a method of controlling extraction of fluids. - IPC E21B 34/06, E21B 43/14. - Publ. 27.03.2008).

Known to the control unit, and controlling the production of fluid from multilayer wells in the device for simultaneous-separate operation of multilayer wells. The control unit, and controlling the production of fluid from multilayer wells comprises a housing with a hole formed opposite to each productive stratum, mounted in the housing opposite each of its holes with the possibility of axial movement of the valve sleeve with a spring ring clamps and grab elements, a control mechanism for the descent into the well from the surface and moving the valve sleeve for opening or closing of the housing bores and the packers. The outside of the housing opposite each�about one of his holes are adjustable valves. Each adjustable valve comprises a hollow Cup, which is placed inside the sleeve with the valve seat and a spring-loaded top down ball placed on the saddle bushings. Adjustable valves allow you to operate the corresponding reservoirs in excess of the predetermined pressure value by adjusting the compression force of the spring ball for each valve adjustable separately, while capturing the elements of the valve bushing is made in the form of their lower ends, and an inner diameter of each of the valve sleeves is reduced from top to bottom. (Patent RU №2339796 C1 to the invention. Device for simultaneous-separate operation of multilayer wells. - IPC: E21B 43/14, E21B 34/06. - Publ. 27.11.2008).

Known to the control unit, and controlling the production of fluid from multilayer wells as part of the installation simultaneously-separate operation of multilayer wells with telecontrol system. Blocks of regulating and controlling the production of fluid from multilayer wells installed in the couplings cross flow of fluids from wells and reservoirs contain control valves, made in the cups with crossover saddle, and instrumentation, the latter positioned above and/or below the regulating valve, is connected between the geophysical cable is placed in the channel made in the wall PT�Cana. Allowing the blocks to regulate and measure flow rate are interconnected geophysical cables and associated with the item well control telecontrol system for the transmission of control commands and adjusting the valves from the control station and the control information related to the process parameters of the fluid in the reservoir wells from instrumentation in the opposite direction with the separation of the signals by means of geophysical and power cables through the cable connector and the adapter. Blocks to regulate and measure the flow rate of the layers is made with the possibility of alternate planting them from the wellhead into the slots of the respective couplings and dismantling for repair and maintenance. Geophysical cables at sections between the support flange and the blocks to regulate and measure the flow rate of the layers placed in telescopic tubes, equipped with compression springs, with the possibility of changing the distance between the blocks to regulate and measure the flow rate of the reservoir during removal and alternate planting them in the appropriate couplings cross flow of fluid. In the Cup cavity from the open end mounted electrically driven shut-off needle that interacts with a by-pass seat, electric drive which on command from the control station reports the shut-off needle reciprocates to control fluid flow and� respective reservoir through the radial channels of the coupling and the cavity of the Cup into the body cavity through the Windows, made in the wall of the glass on both sides of the wastegate seat. The coupling cross flow of fluids made with a socket, which houses the instrumentation, at least the flow meter corresponding fluid reservoir of the well. Telecontrol system control units to regulate and measure the flow rate of the reservoir is equipped with a transmission interface control commands adjusting the valves from the control bore and the information from the instrumentation in the reverse direction through the GPRS communication system. (Patent No. 2512228 C1 for the invention of "Setting simultaneous-separate operation of multilayer wells with telecontrol system". - IPC: E21B 43/14, E21B 47/12. - 10.04.2014). This invention taken as a prototype.

Known to the control unit, and controlling the production of fluid from multilayer wells as part of the system of regulating the flow rate of the well, connected to a housing bottom with the outlet tubular Central and annular channels through which fluid streams of different layers of the well through the docking station, and from above - through the nozzle with electric centrifugal pump. In the housing of the control unit, and controlling the production of fluid in each channel set adjustable valves in the form of spool valves with actuators placed in abusable�tion channels, communicating with the Central and annular channels of the tubular element through the locking seat adjustable valves docking station. In the wall of each separate channel is formed of a window for communication with the cavity of the casing for further electoral mixing fluid streams of all the channels. In the control unit, and taking into account production fluid placed management processor adjustable valves connected by a communication cable is placed in the outlet, via a power cable to power a centrifugal pump and well control. The nozzle is placed a telemetry unit connected by cable connection, on the one hand, with a power cable and well control and, on the other, with the processor of automatic control adjustable valves. (Patent RU №2482267 C2 for the invention of "System of regulating the flow rate of the well". - IPC: E21B 43/12. - 20.05.2013). This invention taken as a prototype.

A disadvantage of the known technical solutions adopted for the prototype is the low reliability of adjustable valves that reduce the effectiveness of the management of simultaneous-separate operation of multizone wells.

The main problem to be solved by the claimed invention is to improve reliability of multilayer wells with the possibility of mode� real-time to quickly change the operating mode of each layer in the well and to track actual changes in the parameters of the downhole fluid product, including flow rate, pressure, temperature, chemical composition, pH, water content and solids, the tendency to the formation of gravel and sand gaskets and resistivity.

The technical result is to increase the reliability of dual completion wells at optimum regulation of the phase composition of the fluid from reservoir wells in real time.

Said technical result is achieved in that in the known control unit, and taking into account production fluid from multilayer wells, comprising a housing with separate longitudinal channels in the amount equal to the number of the exploited strata of the well, limited at the bottom of the docking Assembly with the mating channels for flow of fluids from reservoir wells, the top of the case is limited to a docking station with installed adjustable valves, made in the glasses, the electric drive which reports the shut-off needle reciprocating motion with respect to the wastegate seat to control fluid flow from the respective reservoir through the radial channels in the wall of the glass on both sides of the pass seat with the adjustable valves are located in each separate longitudinal channel of the housing, the walls of which are made of a window for communication with the annular cavity of the well, and measuring and testing instruments, located below and/or above an adjustable valve and functionally associated with a cable telemetry unit and/or the control and power of the well placed in the channel made in the wall of the Cup, with the possibility of transmission of control commands, adjusting the valves and control information on the technological parameters of the fluid in the reservoir wells from instrumentation through the cable connector, according to the proposed technical solution,

electric shut-off needles placed in a sealed cavity of glasses, what glasses hollow end sealingly mated with the top of the docking Assembly, and the locking of the needle is made in the form of a spool that is equipped with a stuffing box through which the shut-off needle is hermetically moves in the glass, wherein the housing additionally placed the cylinders in the amount equal to the number of the exploited strata of the well, the upper end paired with a glass of the corresponding controlled valve, and the opposite - installed in the channels of the lower coupling unit forming separate longitudinal channels with flows of fluid from the respective reservoir to the well bore in a wastegate seat adjustable valves and together with the housing form an annular space communicating with the annular cavity of the well through Windows in the wall� corps and the above test instruments is placed in the cavity of each cylinder and is attached to the end face of the glass, for which the radial channels in the glass below the wastegate seat formed by the end face of the glass;

electric shut-off needle is provided with devices for measuring linear displacement of the locking of the needle, for example, a Hall effect sensor.

Said technical result is achieved in that in the known control unit, and taking into account production fluid from multilayer wells, comprising a housing with separate longitudinal channels in the amount equal to the number of the exploited strata of the well, limited at the bottom of the docking Assembly with the mating channels for flow of fluids from reservoir wells, the top of the case is limited to a docking station with installed adjustable valves, made in the glasses, the electric drive which reports the shut-off needle reciprocating motion with respect to the wastegate seat to control fluid flow from the respective reservoir through the radial channels in the wall of the glass on both sides of the pass seat with the adjustable valves are located in each separate longitudinal channel of the housing, the walls of which are made of a window for communication with the annular cavity of the well, and the instrumentation is�s below and/or above an adjustable valve and functionally associated with a cable telemetry unit and/or item management and supply wells, placed in the channel made in the wall of the Cup, with the possibility of transmission of control commands, adjusting the valves and control information on the technological parameters of the fluid in the reservoir wells from instrumentation through the cable connector, according to the proposed technical solution,

electric shut-off needles placed in a sealed cavity of glasses, what glasses hollow end sealingly mated with the top of the docking Assembly, and the locking of the needle is made in the form of a spool that is equipped with a stuffing box through which the shut-off needle is hermetically moves in the glass, wherein the housing additionally placed the cylinders in the amount equal to the number of the exploited strata of the well, the upper end paired with a glass of the corresponding controlled valve, and the opposite - installed in the channels of the lower coupling unit forming separate longitudinal channels with flows of fluid from the respective reservoir to the well bore in a wastegate seat adjustable valves and together with the housing form an annular space communicating with the annular cavity of the well through Windows in the housing wall, wherein the by-pass channel below the seat is made with axial bypass saddle valve adjustable, informing the cavity of the cylinder with annular about�Transcom, and the instrumentation installed in the wall of each cylinder and are connected by cable with the outer side of the cylinder;

electric shut-off needle is provided with devices for measuring linear displacement of the locking of the needle, for example, a Hall effect sensor.

Given the applicant an analysis of the level of technology has allowed to establish that the analogues, characterized by a set of attributes, identical to all features of the claimed variants of the controlling unit and controlling the production of fluid from multilayer wells, no. Consequently, the claimed technical solution meets the condition of patentability "novelty".

Search results known solutions in the art with the purpose of revealing of signs consistent with the distinctive features of the prototype of the proposed technical solutions, has shown that they do not follow explicitly from the prior art. Of certain of applicant's prior art revealed no known effect provided the essential features of the claimed technical solution transformations on the achievement of specified technical result. Consequently, the claimed technical solution meets the condition of patentability "inventive step".

The technical solution can be implemented on any of preparationassistance from well-known materials and taken technology and used in downhole installations for the extraction of oil and gas. Consequently, the claimed group of technical solution meets the condition of patentability "industrial applicability".

Fig. 1 schematically shows the control unit, and controlling the production of fluid from multilayer wells, variant 1; Fig. 2 - same as option 2.

The control unit, and controlling the production of fluid from multilayer wells according to the first embodiment comprises a housing 1, bounded from below connecting node 2 with channels 3 and the top of the docking Assembly 4 mounted thereon a valve-regulated in the amount equal to the number of the exploited strata of the well. In the housing 1 is placed coupled between the cups 5, which is hollow at the bottom end sealingly mated with the upper connecting node 4, and 6 cylinders, the latter opposite the end mounted in the respective channels 3 bottom of the docking unit 2, forming the annulus 7 and separate longitudinal channels 8 for flow of fluid from the respective reservoir to the wellhead. In glasses made 5 pass seat 9 with radial channels 10 and 11 in the wall of the Cup 5 on both sides of the wastegate seat 9 informing longitudinal channels 8 with the annular cavity of the well through the annulus 7 and Windows 12, made in the wall of the housing 1. Radial channels 10 in the Cup 5 pass below the seat 9 is formed by the end face of the Cup 5. Above re�osnago seat 9 at the base of the Cup 5 is installed shut-off needle 13, made in the form of a spool, which is a stuffing box 14, whereby the shut-off needle 13 is hermetically moves in the Cup 5 from the motor 15, are housed in a sealed cavity 16 of the Cup 5 and is secured in the docking station 4 notifies shut-off needle 13 for reciprocating movement relative to the wastegate seat 9 with the possibility of regulating the flow of fluid from the respective reservoir through the channels 3 of the docking station 2 in the wellhead. The actuators 15 shut-off needle 13 is provided with devices for measuring linear displacement of the shut-off needle 13 with Hall sensors. Below the Cup 5 in the longitudinal channels 8 are arranged instrumentation 17, functionally connected by the cable 18 with the telemetry unit and/or item management and supply wells (not shown) placed in the channel made in the wall of the Cup 5, with the possibility of transmission of control commands, adjusting the valves and control information on the technological parameters of the fluid in the reservoir wells of the control and measuring devices 17 through the cable connector 19, is placed in the column of tubing 20. The measured parameters can be selected from the group including flow rate, pressure, temperature, chemical composition, water content, pH, solids content, a tendency to the formation of a solid precipitate and�individual resistance. (Fig. 1).

In a second embodiment of the control unit, and taking into account production fluid from wells in multilayered glass 5 below pass seat is formed with a channel 21, an axial by-pass the valve seat 9, informing the longitudinal channel 8 with the annular space 7, and control and measuring devices 22 mounted in the wall of each cylinder 6 and connected by a cable 23 in the annular space 7. (Fig. 2).

Suggested blocks for regulating and controlling the production of fluid from multilayer wells are as follows.

After installation of well installation that contains the control unit, and controlling the production of fluid from multilayer wells, connected to a cable 18 with the telemetry unit and/or item management and supply wells include job borehole installation and the different fluid layers starts separately to flow into the annular cavity of the bore through the channels 3 of the docking station 2. The cables 18 and 23 through the cable connector 19 connected to a power supply for control and measuring devices 17 or 22 and control signals to the actuators 15 shut-off needle 13. Also the cables 18 and 23 in the reverse direction is transmitted to the information about the measured parameters of reservoir fluids and the degree of opening of the sluice seat 9 shut-off needle 13 in 5 cups. When adjusting the opening of the wastegate seat 9 shut-off needle 13 reservoir fluids by�determined by separate longitudinal channels 8 in the cylinder 6, washing the instrumentation 17 or 22, the radial channels 10 or axial channel 21 through the bypass saddle 9, the radial channels 11, the annulus 7, Windows 12 in the wall of the housing 1 into the annular cavity of the well. The ability of the unit to operate in the mode of regulating and controlling the production of fluids from different reservoirs wells separately allows you to explore on the surface of the wells each layer separately, i.e. to determine the flow, pressure, temperature, chemical composition, pH, water content and solids, the tendency to the formation of a solid precipitate and the resistivity, and ground maintenance personnel for periodic pumping formation fluid from each reservoir with different process parameters and different cycles, while working well in General, with the possibility of selective mixing fluid streams of all the exploited layers of the well.

Using the proposed control unit, and taking into account production fluid from multilayer wells will improve the reliability of simultaneous-separate operation of multilayer wells.

1. The control unit, and controlling the production of fluid from multilayer wells, comprising a housing with separate longitudinal channels in the amount equal to the number of the exploited strata of the well, limited snis� docking station with return channels for flow of fluids from reservoir wells, on top of the case is limited to a docking station with installed adjustable valves, made in the glasses, the electric drive which reports the shut-off needle reciprocating motion with respect to the wastegate seat to control fluid flow from the respective reservoir through the radial channels in the wall of the glass on both sides of the pass seat, with adjustable valves are located in each separate longitudinal channel of the housing, the walls of which are made of a window for communication with the annular cavity of the well, and instrumentation, located below and/or above an adjustable valve and functionally associated with a cable telemetry unit and/or the control and power of the well placed in the channel made in the wall of the Cup, with the possibility of transmission of control commands, adjusting the valves and control information on the technological parameters of the fluid in the reservoir wells from instrumentation through the cable connector, characterized in that the actuators of the locking needles placed in a sealed cavity of glasses, what glasses hollow end sealingly mated with the top of the docking Assembly, and the locking of the needle is made in the form of a spool on which you installed the seal, whereby locking the needle hermeti�but moves in the glass, in case there are additional cylinders in the amount equal to the number of the exploited strata of the well, the upper end paired with a glass of the corresponding controlled valve, and the opposite - installed in the channels of the lower coupling unit forming separate longitudinal channels with flows of fluid from the respective reservoir to the well bore in a wastegate seat adjustable valves, and together with the housing form an annular space communicating with the annular cavity of the well through Windows in the housing wall and the measuring instruments placed in the cavity of each cylinder and is attached to the end face of the glass, for which the radial channels in the glass below the wastegate seat formed by the end face of the glass.

2. The unit according to claim 1, characterized in that the actuators of the locking needles fitted with devices to measure linear displacement of the locking of the needle, for example, a Hall effect sensor.

3. The control unit, and controlling the production of fluid from multilayer wells, comprising a housing with separate longitudinal channels in the amount equal to the number of the exploited strata of the well, limited at the bottom of the docking Assembly with the mating channels for flow of fluids from reservoir wells, the top of the case is limited to a docking station with installed adjustable valve�AMI, made in the glasses, the electric drive which reports the shut-off needle reciprocating motion with respect to the wastegate seat to control fluid flow from the respective reservoir through the radial channels in the wall of the glass on both sides of the pass seat, with adjustable valves are located in each separate longitudinal channel of the housing, the walls of which are made of a window for communication with the annular cavity of the well, and the instrumentation is located below and/or above an adjustable valve and functionally associated with a cable telemetry unit and/or the control and power of the well placed in the channel made in the wall of the Cup with the possibility of transmission of control commands, adjusting the valves and control information on the technological parameters of the fluid in the reservoir wells from instrumentation through the cable connector, characterized in that the actuators of the locking needles placed in a sealed cavity of glasses, what glasses hollow end sealingly mated with the top of the docking Assembly, and the locking of the needle is made in the form of a spool that is equipped with a stuffing box through which the shut-off needle is hermetically moves in the glass, wherein the housing additionally placed the cylinders in the amount equal to the number of the exploited strata of the well, which upper end is paired with a glass of the corresponding controlled valve, and the opposite - installed in the channels of the lower coupling unit forming separate longitudinal channels with flows of fluid from the respective reservoir to the well bore in a wastegate seat adjustable valves, and together with the housing form an annular space communicating with the annular cavity of the well through Windows in the housing wall, wherein the by-pass channel below the seat is made with axial bypass saddle valve adjustable, informing the cavity of the cylinder with the annular space and above the instrumentation installed in the wall of each cylinder and connected with a cable from the outside of the cylinder.

4. The unit according to claim 3, characterized in that the actuators of the locking needles fitted with devices to measure linear displacement of the locking of the needle, for example, a Hall effect sensor.