Canned pump type electric control intelligent segmented water control tubular column and water control method thereof

Abstract

The invention is suitable for the field of oil exploitation, and discloses a canned pump type electric control intelligent segmented water control tubular column and a water control method thereof. Comprising a casing pipe arranged in a petroleum well, a sand prevention pipe column arranged between an open hole section in the petroleum well and the casing pipe, an oil pipe arranged in the casing pipe and used for sucking liquid, and a canned pump arranged in the casing pipe and connected with the oil pipe. The packing module is arranged between the oil pipe and the sand prevention pipe column, and the sliding sleeve assemblies are arranged on the oil pipe and used for communicating the inner space and the outer space of the oil pipe. The packing module comprises a plurality of expansion packers arranged between the sand prevention pipe column and the open hole section and a plurality of sealing cylinder assemblies arranged between the sand prevention pipe column and the oil pipe, and the positions of the sealing cylinder assemblies are matched with the positions of part of the expansion packers. The space between the sand prevention pipe column and the oil pipe is divided into a plurality of independent production cabins through the cable passing packer, the sealing cylinder assembly and the expansion packer, and the sliding sleeve assemblies are arranged in the independent production cabins respectively.

Description

Technical Field

[0001] This invention relates to the field of oil extraction, and in particular to a canned pump type electrically controlled intelligent segmented water control tubing and its water control method. Background Technology

[0002] The offshore oilfields in the eastern South China Sea have favorable geological properties, and horizontal wells are commonly used for crude oil extraction. Horizontal wells are widely used as a conventional technology for stratified development and integrated well network adjustment in offshore oilfields. However, in the mid-to-late stages of development, horizontal wells are prone to uneven utilization due to geological and development factors, leading to diverse water breakthrough patterns. Currently, most producing horizontal wells in offshore oilfields use a generalized production process tubing string, resulting in uncertain water breakthrough locations. There are no packers or isolation devices within the sand control section, and no supporting technologies are available to meet the requirement of uniform reservoir utilization in offshore oilfield horizontal wells. Furthermore, most offshore horizontal wells are completed using sand control tubing strings, resulting in annulus outside the sand control string and severe cross-flow within the sand control string. Single water control and plugging technologies have inconsistent effectiveness and cannot achieve the production target of autonomously controlling the fluid inflow in the horizontal section. Therefore, there is an urgent need for equipment that divides the horizontal section into several independent production sections, using valves to regulate the production of each section and reduce or eliminate inter-section interference. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a canned pump type electrically controlled intelligent segmented water control column and its water control method.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: A canister pump type electrically controlled intelligent segmented water control string is constructed, comprising: a casing installed in an oil well; a sand control string installed between the open hole section and the casing in the oil well; a tubing installed in the casing for pumping liquid; a canister pump installed in the casing and connected to the tubing; a packer module installed between the tubing and the sand control string; and several sliding sleeve assemblies installed on the tubing for connecting the interior and exterior spaces of the tubing. The packer module includes several expansion packers installed between the sand control string and the open hole section; several sealing cylinder assemblies installed between the sand control string and the tubing; and a cable-passing packer installed at the canister pump for sealing liquid leakage. The positions of several sealing cylinder assemblies and some of the expansion packers are matched. The cable-passing packers, the sealing cylinder assemblies, and the expansion packers divide the space between the sand control string and the tubing into several independent production compartments. The sliding sleeve assemblies are respectively installed in the independent production compartments.

[0005] In some embodiments, the sliding sleeve assembly includes a detection unit for detecting flow rate and an opening control unit for controlling the opening degree, wherein the opening degree of the opening control unit is 0-100% and can be completely closed.

[0006] In some embodiments, the sliding sleeve assembly includes a hydraulically controlled intelligent sliding sleeve and an electrically controlled intelligent sliding sleeve. The opening control unit of the hydraulically controlled intelligent sliding sleeve is provided with a hydraulic control pipeline, and the opening control unit of the electrically controlled intelligent sliding sleeve is provided with a signal cable. The hydraulically controlled intelligent sliding sleeve is located in the independent production compartment near the filling pump, and the electrically controlled intelligent sliding sleeve is located in the independent production compartment other than the hydraulically controlled intelligent sliding sleeve.

[0007] In some embodiments, the sealing cylinder assembly has a sealing channel for the passage of the signal cable, the sealing channel extending through the sealing cylinder assembly and sealingly engaging with the signal cable.

[0008] In some embodiments, there are six expansion packers, which are evenly distributed on the sand control string. The sealing cylinder assembly is respectively disposed on both sides of the two middle expansion packers. The sealing cylinder assembly seals the independent production compartment where the two right expansion packers are located as a first independent production compartment. The two sealing cylinder assemblies seal the independent production compartment where the two middle expansion packers are located as a second independent production compartment. The cable packer and the sealing cylinder assembly seal the independent production compartment where the two left expansion packers are located as a third independent production compartment.

[0009] In some embodiments, the oil pipe is provided with a plurality of fixing clamp assemblies, each fixing clamp assembly including a fixing ring disposed on the oil pipe, the fixing ring having a groove for loading the signal cable, the groove being interference-fitted with the signal cable.

[0010] In some embodiments, the end of the tubing is provided with a round plug for sealing the tubing opening and helping the tubing to be lowered into the oil well, and the end of the sand control string is provided with an open-hole circulation valve for circulating flushing the bottom of the sand control string.

[0011] The technical solution adopted by this invention to solve its technical problem is: a water control method for constructing a canned pump-type electrically controlled intelligent segmented water control column, comprising:

[0012] Step S1: Open all sliding sleeve components to the maximum opening degree, start the filling pump to draw liquid until oil is discharged.

[0013] Step S2: Close all sliding sleeve assemblies, with one sliding sleeve assembly opened to its maximum extent. Record the flow rate data extracted from the independent production chamber where the sliding sleeve assembly is located, and detect and record the oil and water content of the liquid extracted by the sliding sleeve assembly.

[0014] Step S3: Close the sliding sleeve assembly in S2, and open the other sliding sleeve assemblies in sequence. Repeat step S2 to detect and record the flow rate, oil content and water content of each independent production chamber.

[0015] Step S4: Based on the pump displacement and the water content standard of the oil well, adjust the opening of each sliding sleeve assembly and the liquid output of each sliding sleeve. Under the condition of meeting the oil content and water content standards, adjust to meet the pump displacement and form the optimal production capacity data.

[0016] In some embodiments, in step S1, based on the well's fluid production, oil production, water cut, electric pump inlet pressure, and production pressure differential, the frequency of the filling pump can be increased to increase the filling pump inlet pressure, thereby increasing the fluid output before oil is produced.

[0017] In some embodiments, during step S3, when switching between the various sliding sleeves, the frequency of the filling pump is reduced, thereby reducing the liquid output.

[0018] The present invention provides a canister pump-type electrically controlled intelligent segmented water control string, which has the following advantages: A casing, tubing, and sand control string are installed in an oil well. Several expanders and sealing cylinder assemblies divide the casing, tubing, and sand control string into several independent production chambers. Each independent production chamber is equipped with a corresponding sliding sleeve assembly. Liquid can be extracted from the corresponding independent production chamber through the corresponding sliding sleeve assembly. Each independent production chamber can be independently measured and adjusted using the sliding sleeve assembly. Real-time, long-term online monitoring of data such as pressure, temperature, sliding sleeve assembly opening, and flow rate of each production layer is achieved, truly realizing the goal of uniform and controllable fluid injection at each development layer.

[0019] The water control method of the canned pump type electronically controlled intelligent segmented water control column of the present invention has the following beneficial effects: by measuring the flow rate, oil content and water content of the extracted liquid in each independent production chamber, the opening degree of each sliding sleeve assembly is adjusted according to the data of each independent production chamber, so that the liquid output from each independent production chamber forms a mixed liquid, while meeting the data of output, oil content and water content, thus forming the optimal production data. Attached Figure Description

[0020] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0021] Figure 1 This is an overall view of a canning pump type electrically controlled intelligent segmented water control pipeline column according to one embodiment of the present invention;

[0022] Figure 2 This is a structural diagram of a sand-proof tubing column for a canning pump-type electrically controlled intelligent segmented water control tubing column according to one embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of a canning pump type electrically controlled intelligent segmented water control tubing column oil pipe according to one embodiment of the present invention;

[0024] Figure 4 This is a liquid flow diagram of a canning pump-type electrically controlled intelligent segmented water control column according to one embodiment of the present invention;

[0025] Figure 5 This is a flowchart illustrating a water control method for a canned pump-type electrically controlled intelligent segmented water control column according to one embodiment of the present invention.

[0026] Figure Labels

[0027] 100. Expansion packer; 110. First expansion packer; 120. Second expansion packer; 130. Third expansion packer; 140. Fourth expansion packer; 150. Fifth expansion packer; 160. Sixth expansion packer; 170. Cable packer; 200. Filling pump; 300. Pipeline; 400. Sand control tubing string; 410. Open-hole circulation valve; 500. Sealing cylinder assembly; 510. First sealing cylinder; 520. Second sealing cylinder; 600. Sliding sleeve assembly; 610. Hydraulically controlled intelligent sliding sleeve; 620. Electrically controlled intelligent sliding sleeve; 630. Cable; 700. Sleeve. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing the technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on the present invention.

[0029] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0030] Figures 1 to 4 This invention illustrates a canister pump-type electrically controlled intelligent segmented water control string according to one embodiment of the present invention. This canister pump-type electrically controlled intelligent segmented water control string can be used for intelligent water control in offshore oil wells. It may include a casing 700 disposed within the oil well, a sand control string 400 disposed between the open hole section and the casing within the oil well, tubing 300 disposed within the casing 700 for pumping liquid, a canister pump 200 disposed within the casing and connected to the tubing 300, a sealing module disposed between the tubing 300 and the sand control string 400, and several sliding sleeve assemblies 600 disposed on the tubing 300 for connecting the interior and exterior spaces of the tubing 300. In this configuration, the packer module includes several expansion packers 100 disposed between the sand control tubing 400 and the open-hole section, several sealing cylinder assemblies 500 disposed between the sand control tubing 400 and the oil pipe 300, and a cable-passing packer 170 disposed at the filling pump 200 for sealing liquid leakage. Several of the sealing cylinder assemblies 500 are matched with some of the expansion packers 100. The cable-passing packers, the sealing cylinder assemblies 500, and the expansion packers 100 divide the space between the sand control tubing 400 and the oil pipe 300 into several independent production compartments. The sliding sleeve assemblies 600 are respectively disposed in the independent production compartments.

[0031] The well is equipped with casing 700, tubing 300, and sand control string 400. Several expanders and sealing cylinder assemblies 500 divide the tubing 300 and sand control string 400 into several independent production chambers. Each independent production chamber is equipped with a corresponding sliding sleeve assembly 600. The corresponding sliding sleeve assembly 600 can be used to extract the liquid in the corresponding independent production chamber. Each independent production chamber can be independently measured and adjusted using the sliding sleeve assembly 600. Real-time and long-term online monitoring of data such as pressure, temperature, sliding sleeve assembly 600 opening degree, and flow rate of each production layer can be achieved, which can truly realize the goal of uniform and controllable liquid injection in each development layer.

[0032] Understandably, the sand control tubing 400 has the function of filtering formation liquids.

[0033] Understandably, the sealing cylinder assembly and the expansion packer are positioned to match each other, and the sealing cylinder assembly and the expansion packer fit together axially in the tubing to form a sealing structure.

[0034] Figure 1 , Figure 2 and Figure 5 The first shielding unit, in one embodiment, may include a sliding sleeve assembly 600, which includes a detection unit for detecting flow rate and an opening control unit for controlling the opening degree. The opening degree of the opening control unit is 0-100% and can be completely closed. The opening control unit mainly controls the valve opening area of ​​the sliding sleeve assembly 600. When the opening degree is 0%, the valve opening area is 0, and when the opening degree is 100%, the valve opening area is 100%. The opening control unit can be flexibly adjusted freely between 0-100%.

[0035] Understandably, the opening angles of the various sliding sleeve assemblies 600 are not uniform and can be different for each one.

[0036] Understandably, remote control and data return are required between each sliding sleeve.

[0037] Figure 1 , Figure 2 and Figure 3The slide sleeve assembly 600, as shown in one embodiment, may include a hydraulically controlled intelligent slide sleeve 610 and an electrically controlled intelligent slide sleeve 620. The opening control unit of the hydraulically controlled intelligent slide sleeve 610 is equipped with a hydraulic control pipeline, and the opening control unit of the electrically controlled intelligent slide sleeve 620 is equipped with a signal cable. The hydraulically controlled intelligent slide sleeve 610 is located in an independent production compartment near the filling pump, and the electrically controlled intelligent slide sleeve 620 is located in an independent production compartment other than the hydraulically controlled intelligent slide sleeve 610. Because the hydraulic pipeline has a larger diameter, the hydraulic power transmitted from the ground control cabinet to the slide sleeve cannot form a seal. However, the hydraulic pressure is relatively high, so the hydraulic intelligent slide sleeve can use a larger opening area to form a larger flow control range. The electrically controlled intelligent slide sleeve 620 uses a signal cable with a smaller diameter, which can achieve a better seal. Due to the limitations of the working environment, the control pressure is relatively low, so a smaller opening area and a smaller flow range need to be controlled.

[0038] In one specific embodiment, the electrically controlled intelligent sliding sleeve 620 is characterized by its ability to monitor flow rate via signal transmission through the signal cable 5, with a range of 160m. 3 -800m 3 / h, the electronically controlled intelligent sliding sleeve 620 has an opening measurement range of 0-100%, a temperature resistance of 150℃, a pressure resistance of 60MPa, and a maximum adjustable differential pressure of 25MPa for the oil nozzle.

[0039] In one specific embodiment, the hydraulically controlled intelligent sliding sleeve 610 is characterized by adjusting the opening of the sliding sleeve by pressurizing the ground via a hydraulically controlled pipeline, with a flow rate range of 0 m³ / s. 3 -3000m 3 The hydraulically controlled intelligent sliding sleeve 610 is resistant to high temperatures of 180℃ and pressures of 35MPa. The hydraulically controlled sliding sleeve controls the heel-end extraction, and in conjunction with the electrically controlled intelligent sliding sleeve 620, enables large-volume fluid extraction throughout the well.

[0040] Figure 1 , Figure 2 and Figure 3 The sealing cylinder assembly 500 shown in one embodiment may include a sealing channel for a signal cable to pass through. The sealing channel extends through the sealing cylinder assembly 500 and is sealed to the signal cable. The sealing channel allows the signal cable to pass through while maintaining a seal, preventing liquid from the independent production chamber from flowing to other places and improving the overall sealing performance of the tubing.

[0041] Figure 1 and Figure 4The expansion packer, as shown in one embodiment, may include six expansion packers 100, which are evenly distributed on the sand control column 400. Sealing cylinder assemblies 500 are respectively disposed on both sides of the two middle expansion packers 100. The sealing cylinder assemblies 500 seal the independent production compartments where the two right expansion packers 100 are located as a first independent production compartment. The two sealing cylinder assemblies 500 seal the independent production compartments where the two middle expansion packers 100 are located as a second independent production compartment. The cable packer 170 and the sealing cylinder assemblies 500 seal the independent production compartments where the two left expansion packers 100 are located as a third independent production compartment.

[0042] In one specific embodiment, six expansion packers 100 are arranged from right to left as a first expansion packer 110, a second expansion packer 120, a third expansion packer 130, a fourth expansion packer 140, a fifth expansion packer 150, and a sixth expansion packer 160; two sealing cylinder assemblies 500 are arranged from right to left as a first sealing cylinder 510 and a second sealing cylinder 520; wherein, the first expansion packer 110, the second expansion packer 120, and the first sealing cylinder 510 form a first independent production chamber, the third expansion packer 130, the fourth expansion packer 140, the first sealing cylinder 510, and the second sealing cylinder 520 form a second independent production chamber, and the fifth expansion packer 150, the sixth expansion packer 160, and the second sealing cylinder 520 form a third independent production chamber.

[0043] Figure 1 , Figure 2 and Figure 4 The oil pipe 300 is shown in one embodiment and may include a plurality of fixing clamp assemblies (not shown) on the oil pipe 300. The fixing clamp assembly includes a fixing ring disposed on the oil pipe 300 and a groove for loading a signal cable, the groove being interference-fitted with the signal cable.

[0044] In one specific embodiment, part of the outer sheath of the signal cable needs to be removed, reducing the diameter of the signal cable to match the diameter within the groove. The portion of the signal cable with the sheath removed is placed into the groove, and the groove engages with the sheath of the signal cable, completely fixing the axial movement of the signal cable and preventing the signal cable from sliding within the sleeve 700.

[0045] Figure 1 , Figure 3 and Figure 4The diagram shows that in one embodiment, the tubing 300 may include a round plug at the very end of the tubing 300 for sealing the tubing 300 opening and facilitating the tubing 300's entry into the oil well. The sand control string 400 is provided with an open-hole circulation valve 410 at the very end for circulating flushing the bottom of the sand control string 400. The round plug prevents liquid from directly entering the oil well from the tubing 300 opening, and the open-hole circulation valve 410 circulates and flushes the sand control string 400, facilitating its entry into the oil well.

[0046] Figure 5 This invention illustrates a water control method for a canned pump-type electrically controlled intelligent segmented water control string according to one embodiment of the present invention. This water control method for a canned pump-type electrically controlled intelligent segmented water control string can be used for intelligent water control in offshore oil wells, and may include the following steps:

[0047] Step S1: Open all sliding sleeve components 600 to the maximum opening degree, start the filling pump to draw liquid until oil is discharged.

[0048] Step S2: Close all sliding sleeve assemblies 600, with one sliding sleeve assembly 600 opened to its maximum extent. Record the flow rate data extracted from the independent production chamber where the sliding sleeve assembly 600 is located, and detect and record the oil and water content of the liquid extracted by the sliding sleeve assembly 600.

[0049] Step S3: Close the sliding sleeve assembly 600 in S2, and open the other sliding sleeve assemblies 600 in sequence. Repeat step S2 to detect and record the flow rate, oil content and water content of each independent production chamber.

[0050] Step S4: Based on the pump displacement and the water content standard of the oil well, adjust the opening of each sliding sleeve assembly 600 and adjust the liquid output of each sliding sleeve. Under the condition of meeting the oil content and water content standards, adjust to meet the pump displacement and form the optimal production capacity data.

[0051] By measuring the flow rate, oil content, and water content of the extracted liquid in each independent production chamber, and based on the data from each independent production chamber, the opening of each sliding sleeve assembly 600 is adjusted to make the liquids exiting each independent production chamber form a mixed liquid, while simultaneously meeting the data on output, oil content, and water content, thus forming optimal production data.

[0052] Figure 5 In one embodiment, step S1 may include increasing the frequency of the filling pump based on the well's fluid production, oil production, water cut, electric pump inlet pressure, and production pressure differential, thereby increasing the fluid output before oil is produced.

[0053] The frequency of the filling pump can be increased from the conventional 50Hz to 60Hz or higher, which can increase the rotational speed of the filling pump motor, thereby increasing suction and displacement.

[0054] Figure 5 In one embodiment, step S3 may include reducing the frequency of the filling pump and reducing the liquid output when switching the various sliding sleeves.

[0055] The frequency of the filling pump can be increased from the conventional 50Hz to 35Hz or lower, which can reduce the rotational speed of the filling pump motor, thereby reducing the displacement and avoiding waste.

[0056] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A canned pump type electrically controlled intelligent segmented water control tubing, characterized in that, include: The well includes a casing (700) installed inside the oil well, a sand control string (400) installed between the open hole section and the casing inside the oil well, a tubing (300) installed inside the casing (700) for pumping liquid, a filling pump (200) installed inside the casing and connected to the tubing (300), a sealing module installed between the tubing (300) and the sand control string (400), and several sliding sleeve assemblies (600) installed on the tubing (300) for connecting the inside and outside space of the tubing (300). The packing module includes several expansion packers (100) disposed between the sand control string (400) and the open-hole section, several sealing cylinder assemblies (500) disposed between the sand control string (400) and the oil pipe (300), and a cable-passing packer (170) disposed at the filling pump (200) for sealing liquid leakage. Several of the sealing cylinder assemblies (500) are matched with some of the expansion packers (100). The cable-passing packers, the sealing cylinder assemblies (500) and the expansion packers (100) divide the space between the sand control string (400) and the oil pipe (300) into several independent production compartments. The sliding sleeve assemblies (600) are respectively disposed in the independent production compartments.

2. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 1, characterized in that, The sliding sleeve assembly (600) includes a detection unit for detecting flow rate and an opening control unit for controlling the opening degree, wherein the opening degree of the opening control unit is 0-100% and can be completely closed.

3. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 2, characterized in that, The sliding sleeve assembly (600) includes a hydraulically controlled intelligent sliding sleeve (610) and an electrically controlled intelligent sliding sleeve (620). The opening control unit of the hydraulically controlled intelligent sliding sleeve (610) is provided with a hydraulic control pipeline, and the opening control unit of the electrically controlled intelligent sliding sleeve (620) is provided with a signal cable. The hydraulically controlled intelligent sliding sleeve (610) is located in the independent production compartment near the filling pump, and the electrically controlled intelligent sliding sleeve (620) is located in the independent production compartment other than the hydraulically controlled intelligent sliding sleeve (610).

4. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 3, characterized in that, The sealing cylinder assembly (500) is provided with a sealing channel for the passage of the signal cable, the sealing channel passing through the sealing cylinder assembly (500) and sealingly engaging with the signal cable.

5. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 1, characterized in that, There are six expansion packers (100), which are evenly distributed on the sand control pipe string (400). The sealing cylinder assembly (500) is respectively set on both sides of the two expansion packers (100) in the middle. The sealing cylinder assembly (500) seals the independent production compartment where the two expansion packers (100) on the right side is located as the first independent production compartment. The two sealing cylinder assemblies (500) seal the independent production compartment where the two expansion packers (100) in the middle is located as the second independent production compartment. The cable packer (170) and the sealing cylinder assembly (500) seal the independent production compartment where the two expansion packers (100) on the left side is located as the third independent production compartment.

6. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 3, characterized in that, The oil pipe (300) is provided with a plurality of fixing clamp assemblies. The fixing clamp assembly includes a fixing ring disposed on the oil pipe (300). The fixing ring is provided with a groove for loading the signal cable. The groove is interference-fitted with the signal cable.

7. The canning pump type electrically controlled intelligent segmented water control tubing column according to claim 1, characterized in that, The oil pipe (300) is provided with a round plug at the end for sealing the oil pipe (300) opening and helping the oil pipe (300) to be lowered into the oil well. The sand control string (400) is provided with an open hole circulation valve (410) at the end for circulating flushing the bottom of the sand control string (400).

8. A water control method for a canned pump-type electrically controlled intelligent segmented water control tubing, applied to the canned pump-type electrically controlled intelligent segmented water control tubing as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step S1: Open all sliding sleeve assemblies (600) to the maximum opening degree, start the filling pump to draw liquid until oil is discharged; Step S2: Close all sliding sleeve assemblies (600), with one sliding sleeve assembly (600) at its maximum opening. Record the flow rate data extracted from the independent production chamber where the sliding sleeve assembly (600) is located, and detect and record the oil and water content of the liquid extracted by the sliding sleeve assembly (600). Step S3: Close the sliding sleeve assembly (600) in S2, and open the other sliding sleeve assemblies (600) in sequence. Repeat step S2 to detect and record the flow rate, oil content and water content of each independent production chamber. Step S4: Based on the pump discharge rate and the water content standard of the oil well, adjust the opening degree of each sliding sleeve assembly (600) and the liquid output of each sliding sleeve assembly (600). Under the condition of meeting the oil content and water content standards, adjust to meet the pump discharge rate and form the optimal production capacity data.

9. The water control method for a canning pump-type electrically controlled intelligent segmented water control tubing column according to claim 8, characterized in that, In step S1, if any of the following parameters in the well—liquid production, oil production, water cut, electric pump inlet pressure, and production pressure differential—is lower than the standard value, the operating frequency of the filling pump can be increased, thereby increasing the filling pump speed and the filling pump inlet pressure, and increasing the liquid output before oil is discharged.

10. The water control method for a canning pump-type electrically controlled intelligent segmented water control column according to claim 8, characterized in that, In step S3, when switching between the various sliding sleeves, the frequency of the filling pump is reduced, thus reducing the liquid output.

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