Layered oil production and layered monitoring device and method for electric submersible pump well under cable communication control

Abstract

The invention discloses an electric submersible pump well layer-by-layer oil production and layer-by-layer monitoring device and method controlled by cable communication, and belongs to the technical field of oil production. The device comprises a lifting system, a layer-by-layer oil production system and a communication control system; the lifting system is connected with the layered oil production system; the communication control system is connected with the lifting system; the lifting system comprises an oil pipe, an electric submersible pump unit and a one-machine multi-control bottom-hole regulator; the electric submersible pump unit is connected with the one-machine multi-control bottom-hole regulator through an oil pipe, and the one-machine multi-control bottom-hole regulator is located below the electric submersible pump unit. The communication control system comprises a communication cable; and the communication cable is connected with the one-machine multi-control bottom-hole regulator. According to the invention, multiple functions of layered testing, layered water exploration, layered water control and layered oil extraction of the electric submersible pump well are realized; the one-machine double-control bottom-hole regulator is arranged on the process pipe column and is equivalent to two bottom-hole regulators, so that underground tools are reduced, the efficiency of the pipe column is improved, and the process cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of oil production technology, and specifically relates to a device and method for monitoring and stratified oil production in submersible electric pump wells using cable communication control. Background Technology

[0002] In the mid-to-late stages of oilfield development, as formation energy depletes, mechanical oil recovery becomes the primary means of maintaining stable and high crude oil production. Among these, electric submersible pumps (ESPs) are widely used in major oilfields worldwide, especially in high-water-cut oilfields, due to their large displacement, high head, and ease of management. However, a long-standing technical bottleneck severely restricts their full effectiveness: the inherent structural characteristics of ESP units occupy the entire tubing channel, making it impossible to directly monitor and control the lower production layers. This renders traditional stratified oil recovery techniques virtually impossible to implement in ESP wells. This challenge makes the research and development of groundbreaking stratified oil recovery technologies for ESP wells extremely important and necessary.

[0003] Traditional monitoring instruments cannot be directly deployed into production well sections. Traditional production logging tools (such as flow rate, water cut, pressure, and temperature logging tools) need to be lowered through tubing to the producing zone below the electro-hydraulic pump for real-time or periodic monitoring. However, the electro-hydraulic pump unit blocks the access route, preventing the instruments from passing through and thus hindering operators from obtaining real-time, accurate production dynamic data (such as production volume, water cut, and pressure of each sub-layer) for the zone below the pump. Without access to stratified data, oilfield managers struggle to determine which layers are the primary producing layers, which are high-water-cut layers, or which are inefficient circulating layers. This prevents the development of scientific stratified exploitation strategies, leading to indiscriminate mixed exploitation and severely impacting development effectiveness.

[0004] Existing traditional processes cannot incorporate the necessary control tools to control stratified oil recovery. The key to stratified oil recovery lies in the selective opening, closing, or production adjustment of different oil layers. This requires the implementation of control tools such as intelligent sliding sleeves, production mixers, and adjustable nozzles. These tools, too, cannot be used with solid electric pump units, resulting in a lack of effective means to intervene and control the target layer even when the stratification is understood.

[0005] Traditional concentric / eccentric stratified oil production tubing and submersible electric pump tubing have fundamental structural conflicts and cannot be directly integrated into a single system.

[0006] If the lower section of an ESP well is to be adjusted or tested, the only way is to pull out the entire ESP string. This is a major operation that is expensive, time-consuming, and affects the normal production of the well. It is economically and technically unacceptable, making it impossible to implement stratification measures routinely and dynamically.

[0007] In the early stages of ESP (Electric Submersible Pump) stratified oil production technology, overseas companies adopted the dual-pump dual-pipe stratified oil production process and the Y-joint ESP well stratified oil production process. Although these dual-pump dual-pipe and Y-joint ESP well stratified oil production processes solved the problem of stratified oil production, they required more completion tools, had more complex construction processes, and had higher construction costs.

[0008] In recent years, China has made significant progress in oil extraction technology. For ESP (Electric Submersible Pump) stratified oil production, several technologies have been developed, including pressure pulse stratified oil production, ESP well stratified sand control stratified oil production, wet joint insertion stratified oil production, and non-contact wireless power transmission stratified oil production. However, the pressure pulse stratified oil production technology cannot monitor and upload downhole test data; the ESP well stratified sand control stratified oil production technology uses hydraulic lines to control the opening and closing of hydraulic switches, making it impossible to monitor pressure, temperature, and other data in the production well section, and unable to transmit test data to the surface; the wet joint insertion stratified oil production technology often experiences connection failures or data transmission failures because the joints are exposed downhole; and the non-contact wireless power transmission stratified oil production technology, being non-contact, often suffers communication failures due to insufficient communication distance and the influence of oil-water media. Therefore, there is an urgent need to develop a new ESP well stratified oil production stratified monitoring device and method to solve at least one of the above problems. Summary of the Invention

[0009] To address the aforementioned problems, this invention discloses a cable-controlled submersible electric pump well stratified oil production and stratified monitoring device, comprising: a lifting system, a stratified oil production system, and a communication control system; The lifting system is connected to the stratified oil production system; The communication control system is connected to the lifting system; The lifting system includes oil pipes, a submersible electric pump unit, and a multi-control production controller. The submersible electric pump unit is connected to the multi-control production controller via an oil pipe, and the multi-control production controller is located below the submersible electric pump unit. The communication control system includes a communication cable; The communication cable is connected to the multi-control production distribution device.

[0010] Furthermore, the lifting system also includes a power cable, a flow conduit, a cable packer, and an insertion sealing joint; The power cable is installed around the oil pipe, with one end connected to the submersible electric pump unit; The overflow conduit is installed on the oil pipe between the submersible electric pump unit and the multi-control production controller. The cable packer is installed between the tubing and the casing, and is located between the flow conduit and the multi-control distributor. The insertion sealing joint is connected to the multi-control production dispenser; The insertion sealing joint is located below the multi-control production device and at the lowest end of the lifting system.

[0011] Furthermore, the over-cable packer is replaced with an upper packer; One end of the communication cable passes through the upper packer.

[0012] Furthermore, the communication control system also includes a ground control cabinet; The ground control cabinet is installed on the ground and connected to one end of the communication cable; The other end of the communication cable passes through the cable sealer and connects to the multi-control production device; the communication cable is bundled around the oil pipe.

[0013] Furthermore, the stratified oil production system includes tubing, a suspended reconnector, a lower packer, a ball seat, a screen, and a tube shoe; The suspension reconnection handle is located inside the sleeve and is inserted into the sealing connector; The bottom of the suspension return release is connected in sequence to the lower packer, ball seat, screen tube and tube shoe via oil pipes.

[0014] Furthermore, the suspension reconnector and lower packer are replaced with an integrated slip-type packer.

[0015] Furthermore, the stratified oil production monitoring device is used in submersible electric pump wells, electric submersible screw pump wells, oil pump wells, and flowing wells.

[0016] This invention also discloses a method for stratified oil production monitoring in submersible electric pump wells with cable communication control, used in the aforementioned cable communication controlled stratified oil production monitoring device, comprising the following steps: A stratified oil production system is lowered from the wellhead; Set and lock the stratified oil production system, and remove the oil tubing from the upper part of the stratified oil production system; The lifting system is lowered in, connected to the stratified oil production system, and the wellhead equipment is installed. Ground tests were conducted to check the communication of the multi-control production dispatcher, as well as its opening, closing, and control performance. Test whether the submersible electric pump unit is powered on, and conduct pre-commissioning inspection and testing of the submersible electric pump unit; Start the submersible electric pump unit and put it into operation.

[0017] Furthermore, the step of lowering the stratified oil production system from the wellhead includes the following steps: The lower packer is lowered to the predetermined depth by sequentially lowering the suspension return release, lower packer, ball seat, screen pipe and tube shoe through the tubing; Setting and securing the stratified oil production system, and removing the upper tubing of the stratified oil production system, includes the following steps: The lower packer is seated, and the seat card is suspended and reconnected. Disconnect the oil pipe above the suspension return handle from the suspension return handle, and remove the oil pipe above the suspension return handle.

[0018] Furthermore, the lowering of the lifting system and the docking of the lifting system with the stratified oil production system includes the following steps: The oil tubing, submersible electric pump unit, flow guide, cable packer, multi-control production controller and insertion sealing joint are connected sequentially from the wellhead. Insert the sealing connector into the suspension reconnector; Among them, the multi-control generator is connected to the communication cable, and the submersible electric pump unit is connected to the power cable.

[0019] Compared with the prior art, the embodiments of the present invention have at least the following advantages: 1. This invention can realize multiple functions such as process stratification testing, stratified water exploration, stratified water control, and stratified oil production; 2. The process tubing is equipped with a dual-control production distributor, which is equivalent to two production distributors. This reduces downhole tools, improves tubing efficiency, and reduces process costs. 3. Using communication cables for the control, testing, and data transmission of the intelligent production controller offers higher reliability; 4. The multi-control production distribution device is equipped with high-precision temperature, pressure and other testing instruments, which can monitor the flowing pressure, static pressure and pressure recovery, IPR curve (inflow dynamic relationship curve) of each production well section in real time, and provide guidance for oil well production distribution, production capacity analysis and oilfield development. 5. Through data such as pressure recovery, IPR curves and production tests, reservoir research can obtain important information such as effective permeability, skin coefficient, fluid supply radius, reservoir boundary, and formation static pressure of each oil layer, providing a scientific basis for adjusting and optimizing oil well production parameters in oilfield development; 6. Production and water can be determined layer by layer; production can be carried out on a single layer, or two layers can be mined together, or two layers can be mixed and mined in different proportions. 7. It can remotely send control commands and transmit downhole production data via network; 8. Compared with existing technologies such as dual-pump dual-pipe stratified oil production technology and Y-joint electric pump well stratified oil production technology, this invention has the advantages of simple process, convenient construction, low operating cost, and easy on-site operation; compared with technologies such as pressure pulse stratified oil production, wet joint insertion and non-contact wireless power transmission, it has reliable signal transmission, can monitor downhole production data in real time, and transmit downhole production data in real time, laying the foundation for intelligent control, intelligent oilfield and modern management. 9. This invention uses a communication cable to directly communicate and supply power to the multi-control production distribution device, making the communication of the multi-control production distribution device more reliable. At the same time, it can also upload the monitoring data of each oil production section downhole to the surface in real time, so that oilfield workers can understand the production status of oil wells in real time and adjust the production plan at any time.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a cable communication-controlled submersible electric pump well stratified oil production monitoring device according to an embodiment of the present invention is shown. Figure 2 A flowchart of a method for monitoring stratified oil production in submersible electric pump wells using cable communication control, according to an embodiment of the present invention, is shown.

[0023] Reference numerals: 1. Casing; 2. Oil tubing; 3. Communication cable; 4. Power cable; 5. Submersible electric pump unit; 6. Flow duct; 7. Cable packer; 8. Multi-control distributor; 9. Insertion sealing joint; 10. Suspension reconnection release handle; 11. Lower packer; 12. Ball seat; 13. Screen pipe; 14. Pipe shoe; 15. Ground control cabinet; 16. First oil layer; 17. Second oil layer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1As shown in the embodiment of the present invention, a cable communication controlled submersible electric pump well stratified oil production and stratified monitoring device includes: a lifting system, a stratified oil production system and a communication control system; The lifting system is connected to the stratified oil production system; The communication control system is connected to the lifting system; The lifting system includes an oil pipe 2, a submersible electric pump unit 5, and a multi-control production distribution device 8; The upper end of the submersible electric pump unit 5 is connected to the oil pipe 2, the oil pipe 2 is connected to the wellhead production tree, and the lower end of the submersible electric pump unit 5 is connected to the multi-control production device 8 through the oil pipe 2, and the multi-control production device 8 is located below the submersible electric pump unit 5. The communication control system includes a communication cable 3; The communication cable 3 is connected to the multi-control production controller 8.

[0026] For example, the multi-control production distribution device 8 adopts a dual-control production distribution device, that is, one production distribution device can control the production of two layers at the same time.

[0027] This invention enables stratified oil production and monitoring in electric submersible pump wells through cable communication. It represents a technological breakthrough in this field by introducing a revolutionary new type of stratified oil production equipment that can bypass the electric submersible pump unit 5 to upload monitoring data and issue control commands.

[0028] In some embodiments, the lifting system further includes a power cable 4, a flow conduit 6, a cable packer 7, and an insertion sealing joint 9; The power cable 4 is installed around the oil pipe 2, with one end connected to the submersible electric pump unit 5 and the other end connected to the ground power supply equipment; The overflow conduit 6 is installed on the oil pipe 2 between the submersible electric pump unit 5 and the multi-control production controller 8. The cable packer 7 is installed between the oil pipe 2 and the casing 1, and is located between the flow conduit 6 and the multi-control production distribution device 8; The insertion sealing joint 9 is connected to the multi-control production dispenser 8; The insertion sealing joint 9 is located below the multi-control production device 8 and at the lowest end of the lifting system.

[0029] The cable packer 7 is not limited to the cable packer and can be replaced by an upper packer; One end of the communication cable 3 passes through the upper packer and connects to the multi-control production device 8.

[0030] In some embodiments, the communication control system further includes a ground control cabinet 15; The ground control cabinet 15 is installed on the ground and connected to one end of the communication cable 3. The ground control cabinet 15 integrates a main control circuit board, including a power module, a communication module, a data processing unit, and a storage unit. It can realize the acquisition, storage, and remote transmission of downhole data, as well as the control of the production control valve. The other end of the communication cable 3 passes through the cable sealer 7 and is connected to the multi-control production device 8; the communication cable 3 is bundled around the oil pipe 2.

[0031] In some embodiments, the stratified oil production system includes tubing 2, suspended reconnection release 10, lower packer 11, ball seat 12, screen pipe 13, and pipe shoe 14; The suspension return release 10 is located inside the sleeve 1 and is inserted into the sealing connector 9; The bottom of the suspension return release handle 10 is connected in sequence to the lower packer 11, ball seat 12, screen tube 13 and tube shoe 14 via oil pipe 2.

[0032] The lifting system and the stratified oil production system are two separate tubing sets connected together by tubing insertion and sealing. This way, only the lifting system needs to be removed during subsequent pump inspection operations, and the stratified oil production system does not need to be removed. This simplifies secondary operations, reduces construction costs, and improves operational efficiency.

[0033] In some embodiments, the suspension reconnector 10 and the lower packer 11 can also be combined into (replaced by) an integrated Y441 or Y421 type slip packer.

[0034] The layered oil production and monitoring device can be used not only for submersible electric pump wells, but also for electric submersible screw pump wells, oil pump wells, and flowing wells.

[0035] The cable communication-controlled submersible electric pump well stratified oil production and monitoring device of the present invention can determine production and water level layer by layer; it can produce from a single layer, produce from two layers together, or produce from two layers in different proportions; it can continuously monitor the production data of the first oil layer 16 and the second oil layer 17 online in real time; it can monitor the formation pressure, bottom hole pressure, formation pressure recovery curve, IPR curve, and node pressure at different production rates of the first oil layer 16 and the second oil layer 17 respectively, providing guidance for oil well production allocation, production capacity analysis, and oilfield development; it can be used not only for submersible electric pump wells, but also for electric submersible screw pump wells, pumped oil wells, and flowing wells.

[0036] like Figure 2 As shown in the figure, this invention also discloses a method for stratified oil production monitoring in submersible electric pump wells with cable communication control, comprising the following steps: Step 1: Run the stratified oil production system from the wellhead; The tubing 14, screen pipe 13, ball seat 12, lower packer 11, tubing 2, suspension return release 10, and tubing 2 are sequentially connected and lowered from the wellhead through tubing 2 to lower the lower packer 11 to the predetermined depth. Step 2: Set and lock the stratified oil production system; 11 lower sealing packer, 10 suspension return release mechanism; Step 3: Disconnect the oil pipe 2 on the upper part of the suspension return release 10 from the suspension return release 10; Step 4: Remove the upper tubing 2 of the stratified oil production system; Remove the oil pipe 2 above the suspension reconnector 10; Step 5: Lower the lifting system; The following components are connected sequentially from the wellhead: insertion sealing joint 9, multi-control production distribution device 8, cable packer 7, flow conduit 6, submersible electric pump unit 5, and tubing 2; power cable 4 and communication cable 3 are tied to the outer wall of tubing 2; one end of power cable 4 is connected to submersible electric pump unit 5, and the other end is connected to the surface power supply equipment; one end of communication cable 3 is connected to multi-control production distribution device 8, and the other end is connected to surface control cabinet 15. Step 6: Connect the lifting system to the stratified oil production system; Insert the lifting system's insertion sealing joint 9 into the suspension return release 10 of the stratified oil production system; Step 7: Pass the submersible pump power cable 4 and the communication cable 3 controlled by the multi-control production controller 8 through the wellhead, and install the wellhead equipment; Step 8: Ground test whether the communication of the multi-control production distribution device 8 is good, test the opening, closing and operation performance of the multi-control production distribution device 8, and test the monitoring data upload performance; Step 9: Test whether the submersible electric pump unit 5 and the power cable 4 are energized, and perform various tests and inspections on the submersible electric pump unit 5 before commissioning. Step 10: Start the submersible electric pump unit 5 and put it into operation.

[0037] The present invention also discloses a pump inspection process for a cable communication-controlled submersible electric pump well stratified oil production and stratified monitoring device, as follows: Step 1: Remove the lifting system.

[0038] The tubing string is lifted, and the inserted sealing joint 9 and the suspended return release 10 are naturally separated. The lifting system, namely tubing 2, submersible electric pump unit 5, flow guide 6, cable packer 7, multi-control production distribution device 8, and the inserted sealing joint 9, is then pulled out from the well. Step 2: Inspect and repair the submersible electric pump unit 5 or replace it with a new one; Step 3: Re-enter the lifting system: The following components are connected sequentially from the wellhead: insertion sealing joint 9, multi-control production distribution device 8, cable packer 7, flow conduit 6, submersible electric pump unit 5, and tubing 2; power cable 4 and communication cable 3 are tied to the outer wall of tubing 2; one end of power cable 4 is connected to submersible electric pump unit 5, and the other end is connected to the surface power supply equipment; one end of communication cable 3 is connected to multi-control production distribution device 8, and the other end is connected to surface control cabinet 15. Step 4: Connect the lifting system to the stratified oil production system; Insert the lifting system's insertion sealing joint 9 into the suspension return release 10 of the stratified oil production system; Step 5: Pass the submersible pump power cable 4 and the communication cable 3 controlled by the multi-control production controller 8 through the wellhead, and install the wellhead equipment; Step 6: Ground test whether the communication of the multi-control production distribution device 8 is good, test the opening, closing and operation performance of the multi-control production distribution device 8, and test the monitoring data upload performance; Step 7: Test whether the submersible electric pump unit 5 and the power cable 4 are energized, and perform various tests and inspections on the submersible electric pump unit 5 before commissioning. Step 8: Start the submersible electric pump unit 5 and put it into operation.

[0039] Compared with the prior art, the present invention has the following advantages: 1. This invention realizes multiple functions of stratified testing, stratified water exploration, stratified water control, and stratified oil production in submersible electric pump wells; 2. The process tubing is equipped with a dual-control production distributor, which is equivalent to two production distributors. This reduces downhole tools, improves tubing efficiency, and reduces process costs. 3. Using communication cable 3 for the control, testing, and data transmission of the intelligent production controller results in higher reliability; 4. The multi-control production distribution device is equipped with high-precision temperature, pressure and other testing instruments, which can monitor the flowing pressure, static pressure and pressure recovery, IPR curve and other data of each production well section in real time, and provide guidance for oil well production distribution, production capacity analysis and oilfield development. 5. Through data such as pressure recovery, IPR curves and production tests, reservoir research can obtain important information such as effective permeability, skin coefficient, fluid supply radius, reservoir boundary, and formation static pressure of each oil layer, providing a scientific basis for adjusting and optimizing oil well production parameters in oilfield development; 6. Production and water can be determined layer by layer; production can be carried out on a single layer, or two layers can be mined together, or two layers can be mixed and mined in different proportions. 7. It can remotely send control commands and transmit downhole production data via network; 8. Compared with existing technologies such as dual-pump dual-pipe stratified oil production technology and Y-joint electric pump well stratified oil production technology, this invention has the advantages of simple process, convenient construction, low operating cost, and easy on-site operation; compared with technologies such as pressure pulse stratified oil production, wet joint insertion and non-contact wireless power transmission, it has reliable signal transmission, can monitor downhole production data in real time, and transmit downhole production data in real time, laying the foundation for intelligent control, intelligent oilfield and modern management. 9. The present invention uses a communication cable 3 to communicate and supply power directly to the multi-control production distribution device 8, making the communication of the multi-control production distribution device 8 more reliable. At the same time, it can also upload the monitoring data of each oil production section downhole to the surface in real time, so that oilfield workers can understand the production status of oil wells in real time and adjust the production plan at any time.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sublayer production and monitoring device for electric submersible pump wells with cable communication control, characterized in that, include: Lifting system, stratified oil production system, and communication control system; The lifting system is connected to the stratified oil production system; The communication control system is connected to the lifting system; The lifting system includes an oil pipe (2), a submersible electric pump unit (5), and a multi-control production distribution device (8). The submersible electric pump unit (5) is connected to the multi-control production device (8) via an oil pipe (2), and the multi-control production device (8) is located below the submersible electric pump unit (5). The communication control system includes a communication cable (3); The communication cable (3) is connected to the multi-control production distribution device (8).

2. The electric-submersible-pump well layer production and layer monitoring device with cable communication control according to claim 1, characterized in that, The lifting system also includes a power cable (4), a flow conduit (6), a cable packer (7), and an insertion sealing joint (9). The power cable (4) is set around the oil pipe (2), and one end is connected to the submersible electric pump unit (5); The overflow conduit (6) is installed on the oil pipe (2) between the submersible electric pump unit (5) and the multi-control production distribution device (8); The cable packer (7) is installed between the oil pipe (2) and the casing (1), and is located between the flow conduit (6) and the multi-control production dispenser (8); The insertion sealing joint (9) is connected to the multi-control production device (8); The insertion sealing joint (9) is located below the multi-control production device (8) and at the lowest end of the lifting system.

3. The electric-submersible-pump well layer production and layer monitoring device with cable communication control according to claim 2, characterized in that, The over-cable packer (7) is replaced with the upper packer; One end of the communication cable (3) passes through the upper packer.

4. The electric-submersible-pump well layer production and layer monitoring apparatus with cable communication control according to claim 2, characterized in that, The communication control system also includes a ground control cabinet (15); The ground control cabinet (15) is installed on the ground and connected to one end of the communication cable (3); The other end of the communication cable (3) passes through the cable sealer (7) and is connected to the multi-control production device (8); the communication cable (3) is tied around the oil pipe (2).

5. The electric-submersible-pump-and-cable-communication-controlled zonal production and zonal monitoring apparatus according to claim 2, characterized in that, The stratified oil production system includes tubing (2), suspended reconnection release (10), lower packer (11), ball seat (12), screen pipe (13) and pipe shoe (14). The suspension return release handle (10) is located inside the sleeve (1) and is inserted into the insertion sealing joint (9); The bottom of the suspension return release handle (10) is connected in sequence to the lower packer (11), ball seat (12), screen pipe (13) and tube shoe (14) via oil pipe (2).

6. The electric-submersible-pump well layer production and layer monitoring apparatus with cable communication control according to claim 5, characterized in that, The suspension reconnector (10) and the lower packer (11) are replaced with an integrated slip-type packer.

7. The electric-submersible-pump-and-cable-communication-controlled zonal production and monitoring apparatus of claim 1, wherein, The stratified oil production and stratified monitoring device is used in submersible electric pump wells, electric submersible screw pump wells, oil pump wells, and flowing wells.

8. The method for monitoring and controlling the separate layer production of the electric submersible pump well with cable communication control, which is used for the device for monitoring and controlling the separate layer production of the electric submersible pump well with cable communication control according to any one of claims 1-7, characterized in that, Includes the following steps: A stratified oil production system is lowered from the wellhead; Set and lock the stratified oil production system, and remove the oil pipes at the top of the stratified oil production system (2). The lifting system is lowered in, connected to the stratified oil production system, and the wellhead equipment is installed. Ground test to check if the communication of the multi-control production distribution device (8) is good, and test the opening, closing and operation performance of the multi-control production distribution device (8); Test whether the submersible electric pump unit (5) is powered on, and conduct pre-production testing and inspection of the submersible electric pump unit (5); Start the submersible electric pump unit (5) and put it into operation.

9. The electric-submersible-pump well separation monitoring method of claim 8, wherein, The process of lowering the stratified oil production system from the wellhead includes the following steps: The tubing (2) is lowered to sequentially connect the hanging back-connection release (10), the lower packer (11), the ball seat (12), the screen pipe (13) and the shoe (14), and the lower packer (11) is lowered to the predetermined depth; The setting and clamping of the separate layer oil production system and the lifting of the tubing (2) on the upper part of the separate layer oil production system include the following steps: The lower packer (11) is set and clamped, and the hanging back-connection release (10) is clamped; The tubing (2) on the upper part of the hanging back-connection release (10) is disconnected from the hanging back-connection release (10), and the tubing (2) on the upper part of the hanging back-connection release (10) is lifted.

10. The electric-submersible-pump well separation monitoring method of claim 8, wherein, The lifting system is lowered and connected to the separate layer oil production system, and the lifting system is connected to the separate layer oil production system, including the following steps: The tubing (2), the submersible electric pump unit (5), the flow conduit (6), the through-cable packer (7), the one-machine multi-control production allocation device (8) and the insertion sealing joint (9) are sequentially connected and lowered from the wellhead; The insertion sealing joint (9) is inserted into the hanging back-connection release (10); The one-machine multi-control production allocation device (8) is connected to the communication cable (3), and the submersible electric pump unit (5) is connected to the power cable (4).

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