An electrically controlled oil and water well packer

Abstract

The present invention discloses an electrically controlled oil and water well sealer, which relates to the field of sealers and comprises an outer cylinder assembly for extending into a pipeline and a rubber cylinder arranged on the outer cylinder assembly for sealing the pipeline, wherein the rubber cylinder is provided with a support block, a slide cylinder is slidably provided on the outer cylinder assembly, and a protrusion is provided on the slide cylinder; after the rubber cylinder expands to seal the pipeline, the protrusion abuts against the side of the support block close to the central axis of the outer cylinder assembly. The present invention provides an electrically controlled oil and water well sealer, which comprises an outer cylinder assembly for extending into a pipeline and a slide cylinder and a protrusion arranged on the outer peripheral surface of the slide cylinder; after the rubber cylinder expands to seal the pipeline, the protrusion abuts against the side of the support block close to the central axis of the outer cylinder assembly and supports the rubber cylinder from the inside of the support block to minimize the rebound amplitude of the rubber cylinder, thereby improving the stability of the rubber cylinder when it is sealed.

Description

Technical Field

[0001] The present invention relates to the field of packers, in particular to an electrically controlled oil and water well packer. Background Art

[0002] As is well known, oil well pipeline packers are devices used in oil and gas production. They are primarily used to isolate fluids within the well, preventing mixing between fluids at different levels and ensuring the safety and efficiency of the production process. Packers are typically installed in the pipeline of an oil well to control the flow of fluids when needed.

[0003] For example, the Chinese patent document with the authorization announcement number CN221590945U, the announcement date 2024-08-23, and the name "A Digital Electric Packer" includes an inner cylinder assembly, an outer cylinder assembly, a liquid inlet valve assembly, and a control assembly. The inner cylinder assembly is provided with a central flow channel. The outer cylinder assembly is sleeved on the outer edge of the inner cylinder assembly, and a hydraulic rubber cylinder is provided on the outer edge of the outer cylinder assembly. A liquid inlet channel is provided between the inner cylinder assembly and the outer cylinder assembly. When liquid is injected into the hydraulic rubber cylinder, the hydraulic rubber cylinder expands. The liquid inlet valve assembly includes a drive member, a transmission mechanism, and a liquid inlet valve. The liquid inlet valve includes a valve core and a valve seat. The valve seat is provided in the liquid inlet channel, and the valve core is connected to the drive member through a transmission mechanism. The drive member is electrically connected to the control assembly, and the control assembly is used to control the movement of the drive member based on the control instruction to open or close the liquid inlet valve. The digital electric packer provided by the utility model can improve the reliability of setting and unsealing.

[0004] The shortcomings of the above-mentioned existing technologies are that the expandable seal only relies on the medium inside it to support the rubber sleeve and fit the inner wall of the pipeline. Since the rubber sleeve and the medium are prone to deformation, a gap may appear between the seal and the pipeline, which means that this method will result in unreliable sealing. Summary of the Invention

[0005] The object of the present invention is to provide an electrically controlled oil and water well packer to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An electrically controlled oil and water well packer comprises an outer cylinder assembly for extending into a pipeline and a rubber cylinder provided on the outer cylinder assembly for setting the pipeline, wherein the rubber cylinder is provided with a support block, and a slide cylinder is slidably provided on the outer cylinder assembly, wherein the slide cylinder is provided with a protrusion;

[0008] After the rubber cylinder expands to seal the pipeline, the protrusion abuts against a side of the support block close to the center axis of the outer cylinder assembly.

[0009] In the above-mentioned electrically controlled oil and water well packer, the convex block is provided with an arc surface.

[0010] In the above-mentioned electrically controlled oil and water well packer, an inlet is provided on the outer cylinder assembly, and the slide cylinder is connected to the inlet.

[0011] In the above-mentioned electrically controlled oil-water well packer, a groove is provided on the outer cylinder assembly, and the groove is communicated with the inlet.

[0012] In the above-mentioned electrically controlled oil and water well packer, an instantaneous pushing assembly for pushing the slide cylinder to slide is provided between the outer cylinder assembly and the slide cylinder.

[0013] In the above-mentioned electrically controlled oil and water well packer, the instantaneous pushing assembly includes an elastic telescopic rod, and both ends of the elastic telescopic rod are rotatably connected to the slide cylinder and the outer cylinder assembly respectively.

[0014] In the above-mentioned electrically controlled oil-water well packer, the support block is provided with a wedge-shaped portion, and the protrusion abuts against the wedge-shaped portion.

[0015] In the above-mentioned electrically controlled oil-water well packer, a limiting portion is provided on the support block, and an avoidance groove adapted to the limiting portion is provided on the slide cylinder.

[0016] In the above-mentioned electrically controlled oil and water well packer, a blocking plate is slidably provided on the outer cylinder assembly, and the blocking plate has a first position for blocking the inlet and a second position for opening the inlet;

[0017] It also includes a driving member for driving the blocking plate to switch between the first position and the second position.

[0018] In the above-mentioned electrically controlled oil and water well packer, there are two sealing plates, and the two sealing plates are respectively arranged corresponding to the two inlets.

[0019] In the above technical solution, the present invention provides an electrically controlled oil and water well sealer, which is provided with a support block on the rubber cylinder, and a slide cylinder and a protrusion arranged on the outer peripheral surface of the slide cylinder are slidably provided on the outer cylinder assembly. After the rubber cylinder expands to seal the pipeline, the protrusion abuts against the side of the support block close to the central axis of the outer cylinder assembly, and supports it from the inside of the support block to minimize the rebound amplitude of the rubber cylinder, thereby improving the stability of the rubber cylinder when it is sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the process from unsealing to setting of the rubber cartridge provided in an embodiment of the present invention;

[0023] Figure 3 A schematic cross-sectional view of an embodiment of the present invention;

[0024] Figure 4 A schematic cross-sectional view of another embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the connection structure between the slide and the bump provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a partial cross-sectional structure provided in another embodiment of the present invention;

[0027] Figure 7 A partial cross-sectional structural diagram of yet another embodiment of the present invention;

[0028] Figure 8 for Figure 3 A magnified schematic diagram of the local structure at point A.

[0029] Description of reference numerals:

[0030] 1. Outer cylinder assembly; 2. Rubber cylinder; 3. Support block; 4. Slide; 5. Bump; 6. Sealing groove; 7. Arc surface; 8. Inlet; 9. Groove; 10. Elastic telescopic rod; 11. Mounting groove; 12. Rotating seat; 13. Wedge-shaped portion; 14. Hollow area; 15. Limiting portion; 16. Avoidance groove; 17. Blocking plate; 18. First abutting portion; 19. Second abutting portion; 20. Elastic member; 21. Movable groove; 22. Slide; 23. Pipeline. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] In the description of the present invention, it is to be understood that Figure 5The position of the middle protrusion 5 relative to the wedge-shaped portion 13 is above, and vice versa. The terms "center", "length", "width", "degree", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0033] Reference Figure 1-8 An embodiment of the present invention provides an electrically controlled oil and water well packer, comprising an outer cylinder assembly 1 for extending into a pipeline 23 and a rubber cylinder 2 disposed on the outer cylinder assembly 1 for setting the pipeline 23. The rubber cylinder 2 is provided with a support block 3. A slide cylinder 4 is slidably provided on the outer cylinder assembly 1, and a protrusion 5 is provided on the slide cylinder 4.

[0034] After the rubber cylinder 2 expands to seal the pipe 23 , the protrusion 5 abuts against a side of the support block 3 close to the central axis of the outer cylinder assembly 1 (hereinafter referred to as the central axis for ease of description).

[0035] Specifically, the outer cylinder assembly 1 is used in conjunction with the inner cylinder assembly (not shown) and is located outside the inner cylinder assembly. The rubber cylinder 2 is cylindrical and is arranged on the outer circumference of the outer cylinder assembly 1. It is elastic and has the ability to self-recover after deformation. A gap for medium (which can be water or air) to enter is provided between the rubber cylinder 2 and the outer cylinder assembly 1. When sealing the pipeline 23, the medium is injected into the gap through the existing hydraulic system, which will cause the rubber cylinder 2 to expand and accumulate force on the rubber cylinder 2. When the outer circumference of the rubber cylinder 2 is tightly attached to the inner wall of the pipeline 23, the pipeline 23 is blocked. Thereby, the pipe 23 is sealed. When the sealing is completed, the power provided by the hydraulic system is released, and the elastic force of the rubber cylinder 2 is released, so that the rubber cylinder 2 contracts inwardly. At this time, a gap is generated between the rubber cylinder 2 and the pipe 23 to realize the unsealing of the packer. This is a prior art and will not be described in detail. For details, please refer to the patent document with the authorization announcement number CN221590945U previously applied for by the applicant. One of the core innovations of the embodiment of the present invention is that a support block 3 is provided on the rubber cylinder 2. The support block 3 is preferably an arc-shaped block, and is preferably two groups. The two groups of support blocks 3 are symmetrically arranged about the rubber cylinder 2, and each group of support blocks is symmetrical. The support blocks 3 are preferably four, and the four support blocks 3 are arranged in an array on the inner wall of the rubber cylinder 2, and a sealing groove 6 adapted to the support block 3 is opened on the outer cylinder assembly 1, and the support block 3 is slidably and sealedly connected to the sealing groove 6, and the two groups of support blocks 3 are symmetrically arranged about the rubber cylinder 2, and a slide groove 22 adapted to the slide cylinder 4 is opened inside the outer cylinder assembly 1, and the slide cylinder 4 is slidably connected to the slide groove 22, and a protrusion 5 is provided on the outer peripheral surface of the slide cylinder 4. The number and position of the protrusion 5 are arranged correspondingly with respect to the number and position of the support blocks 3. The effect of such a setting is that after the rubber cylinder 2 expands to seal the pipe 23, it will drive The support block 3 slides toward the outside of the sealing groove 6. At this time, a gap will be generated between the support block 3 and the slide 4. At this time, the slide 4 is controlled to slide axially along the outer cylinder assembly 1 through an existing reciprocating drive component such as an electric push rod, so that the protrusion 5 is inserted into the gap between the support block 3 and the slide 4, so that multiple protrusions 5 are respectively in contact with the side of multiple support blocks 3 close to the central axis, that is, the protrusion 5 is supported from the inner side of the support block 3. At this time, the support block 3 can no longer slide toward the inside of the sealing groove 6, so as to minimize the rebound amplitude of the rubber cylinder 2, thereby improving the stability of the rubber cylinder 2 when it is sealed.

[0036] Preferably, the protrusion 5 is provided with an arcuate surface 7. Specifically, the arcuate surface 7 is provided at the edge position above the protrusion 5. The effect of such a setting is that when the support block 3 slides outward from the sealing groove 6 but the distance is not sufficient for the protrusion 5 to be inserted, the arcuate surface 7 on the protrusion 5 will abut against the edge position of the support block 3, thereby providing the support block 3 with a thrust away from the central axis, so that the protrusion 5 can smoothly enter between the support block 3 and the slide 4 for support.

[0037] Furthermore, an inlet 8 is provided on the outer cylinder assembly 1, and the slide 4 is connected to the inlet 8. Specifically, the inlet 8 is close to the bottom end of the outer cylinder assembly 1, and preferably there are two of them. The bottom end of the slide 4 is set inside the inlet 8, that is, when the medium enters the inlet 8, it will contact the bottom end of the slide 4. The effect of such a setting is that in the initial process of setting the seal, since the protrusion 5 abuts against the lower surface of the support block 3, the protrusion 5 and the slide 4 cannot slide upward, and the pressure of the medium will make the slide 4 have a tendency to slide upward, and the medium is injected between the rubber cylinder 2 and the outer cylinder assembly 1. As the medium is continuously filled, the rubber cylinder 2 continues to expand, and the rubber cylinder 2 It will drive the support block 3 to slide outward gradually. When the gap between the support block 3 and the slide 4 is sufficient to allow the protrusion 5 to be inserted, the medium will push the slide 4 to slide upward, so that the protrusion 5 can be passively inserted into the gap to achieve its passive support for the support block 3. When the sealing is completed, the pressure provided by the hydraulic system is canceled, and the negative pressure operation is performed on the inside of the outer cylinder assembly 1. On the one hand, the slide 4 can be controlled to slide in the opposite direction for reset. On the other hand, the speed of medium discharge from the gap between the rubber cylinder 2 and the outer cylinder assembly 1 can be accelerated, thereby increasing the speed of unsealing.

[0038] Preferably, a groove 9 is formed on the outer cylinder assembly 1, and the groove 9 is connected to the inlet 8. Specifically, there are multiple grooves 9, and the multiple grooves 9 are arranged in an array on the outer circumference of the outer cylinder assembly 1, which can increase the area for the medium to enter, thereby accelerating the medium to enter the gap between the rubber sleeve 2 and the outer cylinder assembly 1, and further accelerating the setting speed.

[0039] Furthermore, an instantaneous push assembly for pushing the slide 4 to slide is provided between the outer cylinder assembly 1 and the slide 4. The instantaneous push assembly includes an elastic telescopic rod 10, and the two ends of the elastic telescopic rod 10 are rotatably connected to the slide 4 and the outer cylinder assembly 1 respectively. Specifically, a mounting groove 11 is provided inside the side wall of the outer cylinder assembly 1, and the elastic telescopic rod 10 includes two sections that are slidably connected to each other, and elastic components such as springs are provided between the two sections. A rotating seat 12 is provided on the side wall of the mounting groove 11 and the outer peripheral surface of the slide 4. The two ends of the elastic telescopic rod 10 are rotatably connected to the rotating seat 12 on the side wall of the mounting groove 11 and the rotating seat 12 on the outer peripheral surface of the slide 4 respectively, and there are multiple elastic telescopic rods 10, and the multiple elastic telescopic rods 10 are arranged in an array on the outer peripheral surface of the slide 4. Under the action of the connection between the elastic telescopic rod 10 and the rotating seat 12, the circumference of the slide 4 can be limited, that is, the slide 4 cannot rotate relative to the outer cylinder assembly 1. The effect of such a setting is that, Figure 8As shown, when the elastic telescopic rod 10 is at point a, the elastic telescopic rod 10 is arranged obliquely downward, which provides the slide 4 with a vertical downward component force, so that the protrusion 5 remains below the support block 3 and does not abut against the support block 3. After the support block 3 and the protrusion 5 are away from each other, when the pressure of the medium is greater than the elastic force of the elastic telescopic rod 10, the slide 4 will be pushed to slide upward. When the elastic telescopic rod 10 moves to point b, that is, the elastic telescopic rod 10 is in a horizontal state at this time, the vertical force on the slide 4 disappears. At this time, under the action of continued pressure from the medium, the elastic telescopic rod 10 will slide from point b to point c. At this time, the elastic telescopic rod 10 is arranged obliquely upward, which will provide the slide 4 with a vertical upward component force. The advantage of such a setting is that First, in conjunction with the pressure of the medium, the protrusion 5 will move upward instantly to increase the rate at which the protrusion 5 is inserted into the gap between the support block 3 and the slide 4. Second, the slide 4 and the protrusion 5 will be maintained in this position so that the protrusion 5 can stably support the support block 3. After the pipeline 23 is sealed, the negative pressure operation is performed on the inside of the outer cylinder assembly 1. Under the action of the negative pressure, the slide 4 will be subjected to a vertical downward force. When the force is greater than the elastic force of the elastic telescopic rod 10, the slide 4 will slide downward. At this time, the end of the elastic telescopic rod 10 that is rotatably connected to the slide 4 moves from point c to point b, and finally moves to point c for reset. After the protrusion 5 is away from the support block 3, the support block 3 is reset under the action of the elastic force of the rubber cylinder 2 itself.

[0040] It should be noted that the rubber cylinder 2 has a sealing state and an unsealing state. When it is in the sealing state, the sealing stability can be improved by the protrusion 5. In order to improve the stability of the rubber cylinder 2 in the unsealing state, as another embodiment of the present invention, a wedge-shaped portion 13 is provided on the support block 3, and the protrusion 5 abuts against the wedge-shaped portion 13. Specifically, a wedge-shaped surface is also provided on the protrusion 5. The purpose of such a setting is that when the rubber cylinder 2 changes from the sealing state to the unsealing state, the elastic telescopic rod 10 is at point a, and a vertical downward component force is provided to the slide 4. This component force makes the wedge surface of the protrusion 5 abut against the wedge surface on the wedge shaped portion 13, and provides the wedge shaped portion 13 and the support block 3 with a force in the direction close to the central axis, so as to flexibly fix the support block 3 in this position, so that the rubber cylinder 2 will not expand at will, so as to improve the stability of the packer when it is unsealed. When it is necessary to seal again, and when When the pressure of the medium is greater than the elastic force of the rubber cylinder 2 and the elastic force of the elastic telescopic rod 10, the support block 3 will slide in the direction away from the central axis, and the wedge surface of the wedge-shaped portion 13 will abut against the wedge surface of the protrusion 5, and the protrusion 5 will be lifted up a short distance to achieve avoidance. When the rubber cylinder 2 switches from the set state to the unsealed state, if the elastic force of the rubber cylinder 2 cannot drive the support block 3 to return to its initial position, at this time, under the action of the abutment between the wedge surface of the protrusion 5 and the wedge portion 13, the support block 3 will be driven to slide further in the direction of the central axis to assist in resetting the support block 3.

[0041] A hollow area 14 for accommodating the protrusion 5 is formed between the wedge-shaped portion 13 and the support block 3. When the slide 4 drives the protrusion 5 to reset, if the rubber cylinder 2 recovers slowly, the protrusion 5 may directly pass over the hollow area 14. In order to prevent the protrusion 5 from directly passing over the opening position of the hollow area 14, a limiting portion 15 is further provided on the support block 3, and an avoidance groove 16 adapted to the limiting portion 15 is opened on the slide 4. Specifically, the limiting portion 15 is a protruding structure arranged on the wedge-shaped portion 13, and the avoidance groove 16 is opened on the outer peripheral surface of the slide 4. The purpose of such a setting is that when the rubber cylinder 2 is in the sealing state, the limiting portion 15 is inserted into the avoidance groove 16. At this time, the limiting portion 15 is located on the movement stroke of the protrusion 5. At this time, the protrusion 5 cannot continue to move, thereby preventing the protrusion 5 from directly crossing the opening position of the hollow area 14. When the support block 3 is reset, the protrusion 5 is inserted into the hollow area 14. Under the action of negative pressure and the elastic telescopic rod 10, the protrusion 5 will continue to move downward, and its wedge surface will abut against the wedge surface of the wedge portion 13 to achieve reset.

[0042] When the rubber cylinder 2 is sealed, it is necessary to maintain pressure through the hydraulic system to keep the rubber cylinder 2 in an expanded state. This method undoubtedly causes a waste of power. As another embodiment of the present invention, a sealing plate 17 is slidingly provided on the outer cylinder assembly 1, and the sealing plate 17 has a first position for sealing the inlet 8 and a second position for opening the inlet 8; it also includes a driving member for driving the sealing plate 17 to switch between the first position and the second position. When the sealing is completed, the sealing plate 17 is controlled to switch from the first position to the second position again, so that the medium can flow out from the inlet 8 for subsequent unsealing.

[0043] Preferably, there are two blocking plates 17, and the two blocking plates 17 are respectively arranged corresponding to the two inlets 8. By providing two blocking plates 17, the opening and closing of the two inlets 8 can be controlled separately.

[0044] As an alternative solution for the above-mentioned electric push rod and pressure sensor to cooperate in controlling the switching of the sealing plate 17 between the first position and the second position, the driving member includes a first abutment portion 18 arranged on the sealing plate 17, and the slide cylinder 4 is provided with a second abutment portion 19. The first abutment portion 18 is located on the movement stroke of the second abutment portion 19, and an elastic member 20 is provided between the first abutment portion 18 and the outer cylinder assembly 1. Specifically, the first abutting portion 18 is a vertically arranged rod-shaped structure, and a wedge-shaped surface is also provided on the first abutting portion 18. A movable groove 21 is also provided inside the outer cylinder assembly 1. The elastic member 20 is preferably a spring, one end of which is fixed to the side wall of the movable groove 21, and the other end is fixed to the first abutting portion 18. When the second abutting portion 19 is away from the first abutting portion 18, the elastic force of the elastic member 20 causes the blocking plate 17 to be in the second position. The effect of such a setting is that when the protrusion 5 can be inserted into the gap between the support block 3 and the slide 4, that is, the medium between the rubber cylinder 2 and the outer cylinder assembly 1 is filled, the pressure of the medium will cause the slide 4 slides upward, and under the pressure of the medium and the elastic force of the elastic telescopic rod 10, the second abutting portion 19 is driven to abut against the wedge-shaped surface of the first abutting portion 18, so as to drive the blocking plate 17 to passively switch from the second position to the first position, and store force on the elastic member 20. After the setting is completed, the negative pressure is pumped out, and the slide 4 is driven to slide downward under the action of the negative pressure. When the second abutting portion 19 is separated from the first abutting portion 18, the elastic force of the elastic member 20 is released, thereby passively switching the blocking plate 17 from the first position to the second position again, thereby realizing the passive switching of the blocking plate 17 between the first position and the second position.

[0045] To sum up, the slide 4 and the protrusion 5 have the following effects: First, when the rubber cylinder 2 is in the unsealed state, the protrusion 5 abuts against the wedge-shaped portion 13, which can provide the support block 3 and the rubber cylinder 2 with a force in the direction of the central axis, so that it can be flexibly limited in this position to improve the stability during unsealing; second, when the rubber cylinder 2 is in the sealed state, the slide 4 drives the protrusion 5 to insert into the gap between the slide 4 and the support block 3, which can provide the support block 3 and the rubber cylinder 2 with a supporting force away from the central axis to improve the stability during sealing; third, in the process of switching the rubber cylinder 2 from the unsealed state to the sealed state, it will drive the second abutting portion 19 to abut against the first abutting portion 18 to achieve passive sealing of the inlet 8; fourth, in the process of switching the rubber cylinder 2 from the sealed state to the unsealed state, it will drive the second abutting portion 19 to move away from the first abutting portion 18 to achieve passive opening of the inlet 8.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An electrically controlled oil and water well packer, comprising an outer cylinder assembly for extending into a pipeline and a rubber sleeve disposed on the outer cylinder assembly for setting the pipeline, characterized in that: The rubber cylinder is provided with a support block, the outer cylinder assembly is slidably provided with a slide cylinder, and the slide cylinder is provided with a convex block; After the rubber cylinder expands to seal the pipeline, the protrusion abuts against a side of the support block close to the center axis of the outer cylinder assembly; The outer cylinder assembly is provided with two inlets, and the slide cylinder is connected to the inlets; An instantaneous pushing component for pushing the slide cylinder to slide is provided between the outer cylinder component and the slide cylinder; The instantaneous pushing assembly includes an elastic telescopic rod, and both ends of the elastic telescopic rod are rotatably connected to the slide cylinder and the outer cylinder assembly respectively; The support block is provided with a limiting portion, and the slide cylinder is provided with an avoidance groove adapted to the limiting portion; A blocking plate is slidably provided on the outer cylinder assembly, and the blocking plate has a first position for blocking the inlet and a second position for opening the inlet; Also included is a driving member for driving the blocking plate to switch between the first position and the second position; The driving member includes a first abutment portion provided on the sealing plate, a second abutment portion is provided on the slide cylinder, the first abutment portion is located on the movement stroke of the second abutment portion, and an elastic member is provided between the first abutment portion and the outer cylinder assembly.

2. The electrically controlled oil and water well packer according to claim 1, characterized in that: The convex block is provided with an arc surface.

3. The electrically controlled oil and water well packer according to claim 1, characterized in that: The outer cylinder assembly is provided with a groove, and the groove is communicated with the inlet.

4. The electrically controlled oil and water well packer according to claim 1, characterized in that: The support block is provided with a wedge-shaped portion, and the protrusion abuts against the wedge-shaped portion.

5. The electrically controlled oil and water well packer according to claim 1, characterized in that: There are two blocking plates, and the two blocking plates are respectively arranged corresponding to the two inlets.

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