Electromechanical control type oil exploitation packer

Abstract

The invention relates to an electromechanical control type oil exploitation packer which comprises a first shell, a second shell and a third shell. A first butt joint cylinder is arranged at the position, facing the second shell, of the first shell, a second butt joint cylinder is arranged at the position, facing the first shell, of the second shell, a plurality of rubber cylinders are arranged at the middle section position of the second shell, and the third shell is in butt joint with the position, away from the first shell, of the second shell. A second butt joint seat is arranged at the position, facing the first butt joint cylinder, of the second butt joint cylinder, and a first butt joint seat is arranged on the periphery, facing the second butt joint cylinder, of the first butt joint cylinder. According to the electromechanical control type packer for oil exploitation, through the tightening state of the flexible barrel bag between the first butt joint barrel and the second butt joint barrel and the cooperation of the first surrounding type convex cushion and the second surrounding type convex cushion, effective sealing of the butt joint part is achieved, the sealing effect of the packer is remarkably improved, oil and gas leakage is prevented, and the safety of oil exploitation is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of packers, in particular to an electromechanically controlled packer for oil production. Background Art

[0002] During oil production, packers serve as a crucial downhole tool, primarily used to isolate different wellbore layers, enabling operations such as stratified production, water injection, acidizing, fracturing, and water plugging. They expand or contract within the wellbore through elastic sealing elements (such as rubber sleeves), creating a reliable sealing barrier that prevents fluid from channeling and ensures efficient and safe production. With the increasing depth of oil resource development and the increasing complexity of well conditions, packers are increasingly being used in horizontal, deviated, and deep wells, becoming an indispensable piece of equipment in modern oil engineering. Existing packers are mostly connected by threads or pins. Due to the complex downhole environment, vibration and water vapor will affect the connection position, which will affect the stability of the packer during application and subsequent replacement and maintenance. In view of this, an electromechanically controlled packer for oil production is proposed. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In view of the following technical problems in the existing technology: the existing seals are mostly connected by threads or pins. Due to the complex downhole environment, they are affected by vibration and water vapor, which will affect their connection position, thereby affecting the stability of the seal during application and subsequent replacement and maintenance.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an electromechanically controlled oil recovery packer, comprising a first shell, a second shell and a third shell; The portion of the housing 1 facing the housing 2 is provided with a docking sleeve 1, the portion of the housing 2 facing the housing 1 is provided with a docking sleeve 2, a number of rubber sleeves are provided at the middle portion of the housing 2, and the housing 3 is docked with the portion of the housing 2 away from the housing 1; The portion of the docking tube 2 facing the docking tube 1 is provided with a docking seat 2, and the outer periphery of the portion of the docking tube 1 facing the docking tube 2 is configured with a docking seat 1, and both the docking seat 2 and the docking seat 1 are reserved with limiting channels arranged in an array, and the outer periphery of the portion of the docking tube 1 facing the docking tube 2 is milled with a surrounding groove 1, and the surrounding groove 1 is ring-shaped, and the circumferential surface of the docking tube 2 near the position of the docking tube 1 is milled with a plurality of guide channels arranged in an array, and a linkage part is provided for telescopic movement in the guide channel, and the linkage part has a portion protruding from the guide channel, wherein the linkage part can correspond to the surrounding groove 1 after the telescopic movement occurs, and a corner position of the linkage part is cut out and defined as a slope edge, and the linkage part will move toward the inner edge position of the guide channel under the action of the slope edge; A connecting cavity is reserved on the inner edge of the docking seat 2, and the connecting cavity is ring-shaped. A flexible tubular bag is fixedly connected to the inner edge of the connecting cavity. The flexible tubular bag is subjected to the force of the linkage member and is located in the middle position between the linkage member and the surrounding groove 1. At this moment, the flexible tubular bag is also in the middle position between the docking tube 2 and the docking tube 1. The flexible tubular bag is located at the inner edge of the docking tube 2, and the part of the flexible tubular bag away from the connecting cavity is fixedly connected to the connecting seat. The connecting seat telescopically moves on the inner edge of the docking tube 2, and the outer peripheral surface of the connecting seat is in contact with the inner edge of the docking tube 2. A number of straight channels arranged in an array are reserved on the connecting seat.

[0006] As an optimal technical solution for an electromechanically controlled oil extraction packer, the packer is equipped with a first sensor, a second sensor, a hydraulic pump, a hydraulic control system and a hydraulic cylinder. The packer is connected to an external control terminal. The hydraulic control system drives the hydraulic cylinder, and the hydraulic cylinder controls the expansion or contraction of the rubber cylinder. The first sensor monitors the hydraulic control system to facilitate adjustment of the pressure and flow of the hydraulic pump. The second sensor confirms whether the position and pressure of the rubber cylinder meet the requirements. The external control terminal receives the data of the first sensor and the second sensor through a signal receiver.

[0007] As an optimal technical solution for an electromechanically controlled oil extraction sealer, a long channel is milled on one side of the linkage part, and a flexible strip is installed on the inner edge of the guide channel. The flexible strip is located in the long channel. When the outer tube and the linkage part perform telescopic movement, the linkage part will cause the flexible strip to bend.

[0008] As an optimal technical solution for an electromechanically controlled oil extraction sealer, a limiting column is installed at the opening edge of the docking tube one facing the docking tube two, and the limiting column and the straight channel are adapted to each other. A flexible ball is fixedly connected to the portion of the limiting column facing the docking tube two, and the opening specification of the straight channel is smaller than the specification of the flexible ball. When the connecting seat and the docking tube one are in contact, the position of the limiting column is matched to the straight channel, and the flexible ball extends out of the straight channel. Relying on the fact that the opening specification of the straight channel is smaller than the specification of the flexible ball, a stable contact relationship between the connecting seat and the docking tube one is ensured.

[0009] As an optimal technical solution for an electromechanically controlled oil extraction sealer, the docking tube 2 is threadedly connected to the outer tube 1 on the circumferential surface facing the docking tube 1, and the inner edge of the outer tube 1 is reserved with a surrounding groove 2, which is ring-shaped, and the inner edge of the surrounding groove 2 is hinged with a round seat, and the inner edge of the surrounding groove 2 is provided with an extension sleeve, which is used to ensure that the round seat will not fall off when moving in the surrounding groove 2.

[0010] As an optimal technical solution for an electromechanically controlled oil extraction sealer, a first locking column is fixedly connected to the side of the round seat facing the docking seat one, the first locking column corresponds to the limiting channel, and the first locking column is located outside the docking seat one and is threaded with a first locking sleeve on the outer periphery. After the first locking sleeve cooperates with the first locking column, the linkage part is located in the middle position of the surrounding groove one.

[0011] As an optimal technical solution for an electromechanically controlled oil extraction sealer, the side of the docking seat 2 facing the docking seat 1 is provided with an elastic part, and the part of the elastic part facing the docking seat 2 is connected to a circular pad, and the circular pad and the elastic part are both on the circumferential surface of the first locking column, and the docking seat 1 is milled with a guide channel on the outer periphery of its upper limit channel, and the side of the circular pad facing the docking seat 1 is provided with a second locking column, the second locking column is in the guide channel, and the second locking column is threaded with a second locking sleeve on the outer periphery of the part outside the guide channel.

[0012] As an optimal technical solution for an electromechanically controlled oil extraction sealer, a receiving cavity is milled at the opening edge of the outer tube one, the outer tube two is connected to the outer periphery of the docking tube one by thread, the other part of the outer tube two is in the receiving cavity, and an outer groove and an inner groove are milled at the inner edge of the opening of the receiving cavity.

[0013] As an optimal technical solution for an electromechanically controlled oil extraction sealer, the inner edge of the outer groove is fixedly connected with a first surround-type convex pad, the first surround-type convex pad is located at the outer periphery of the outer tube two, and the first surround-type convex pad is located in the middle position of the outer tube one and the outer tube two. The inner edge of the inner groove is fixedly connected with a second surround-type convex pad, the second surround-type convex pad is located in the middle position of the outer tube one and the outer tube two. The cooperation of the second surround-type convex pad and the first surround-type convex pad has a blocking effect on the docking position of the receiving chamber and the outer tube two, thereby realizing the isolation between the inside and the outside.

[0014] As an optimal technical solution for an electromechanically controlled oil extraction sealer, the opposite sides of the outer tube two and the outer tube one are fixedly connected with an extension seat, and the extension seat is threaded with a locking piece. The surfaces of the docking tube one and the docking tube two are both reserved with locking channels, and the locking piece passes through the extension seat and docks into the locking channel.

[0015] As an optimal technical solution for an electromechanically controlled oil extraction sealer, flexible shells are installed on the upper position of the outer tube 2 and the outer tube 1 near the extension seat, and a protrusion is arranged on the other side of the flexible shell. The circumference of the docking tube 1 and the docking tube 2 are milled with an adaptation cavity, and the protrusion is docked in the adaptation cavity. The flexible shell is used to shield the extension seat, and the two extension seats are respectively provided with a surrounding elastic pad on one side facing the docking tube 2 and the docking tube 1.

[0016] Beneficial effects of the present invention: 1. This electromechanically controlled oil recovery packer achieves effective sealing of the docking area by tightening the flexible bag between the first and second docking tubes, and by cooperating with the first and second surrounding convex pads. This significantly improves the sealing effect of the packer, prevents oil and gas leakage, and ensures the safety of oil recovery. 2. This electromechanically controlled oil recovery packer utilizes the adaptive design of the limiting column, flexible ball and straight channel, as well as the cooperation between the first locking column and the second locking column and the locking sleeve to ensure the stable connection between the first and second docking tubes, thereby enhancing the structural reliability of the device under complex working conditions. 3. This electromechanically controlled oil recovery packer achieves dynamic adjustment of the docking position through the telescopic movement of the linkage in the guide channel, combined with the shape changes of the flexible strip and the flexible barrel bag, so that the packer can adapt to different working conditions. 4. This electromechanically controlled oil extraction packer provides effective shielding for the extension seat and locking piece through the design of flexible shell and surrounding elastic pad, preventing external media from entering the docking area. At the same time, the grooves of the inner and outer tubes cooperate with the convex pads to further achieve internal and external isolation, thereby extending the service life of the device.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive work. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the control operation of the present invention.

[0020] Figure 3 It is a schematic diagram of the docking socket 1 and the docking socket 2 of the present invention.

[0021] Figure 4 The present invention is based on Figure 3 Partial schematic diagram.

[0022] Figure 5 This is a schematic diagram of the connection between the outer cylinder 1 and the outer cylinder 2 of the present invention.

[0023] Figure 6 Schematic diagram of the outer cylinder of the present invention.

[0024] Figure 7 The present invention is based on Figure 6 Schematic diagram of partial section.

[0025] Figure 8 The present invention is based on Figure 7 Schematic diagram at the center X.

[0026] Figure 9 It is a schematic diagram of the outer cylinder of the present invention.

[0027] Figure 10 It is a schematic diagram of the flexible tubular bag of the present invention.

[0028] Figure 11 Schematic diagram of the first locking column of the present invention.

[0029] Figure 12 Schematic diagram of the linkage parts of the present invention.

[0030] Reference numerals: 100, housing 1; 101, docking sleeve 1; 102, docking seat 1; 103, limiting column; 104, flexible ball; 105, surrounding groove 1; 200, housing 2; 201, rubber sleeve; 202, docking sleeve 2; 203, docking seat 2; 204, connecting cavity; 205, flexible barrel bag; 206, connecting seat; 207, straight channel; 208, guide channel; 209, linkage; 210, long channel; 211, flexible strip; 300, housing 3; 400 , outer cylinder one; 401, surround-type groove two; 402, round seat; 403, extension sleeve; 404, first locking column; 500, round pad; 501, elastic member; 502, guide channel; 503, second locking column; 600, storage cavity; 601, outer cylinder two; 602, first surround-type convex pad; 603, second surround-type convex pad; 700, extension seat; 701, locking channel; 702, flexible shell; 703, raised portion; 704, adapter cavity; 705, surround-type elastic pad. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0035] Example Reference Figure 1 , an electromechanically controlled oil recovery packer, comprising a first shell 100, a second shell 200 and a third shell 300; A docking sleeve 101 is installed at the portion of shell 1 100 facing shell 2 200, a docking sleeve 2 202 is installed at the portion of shell 2 200 facing shell 1 100, a number of rubber sleeves 201 are installed at the middle portion of shell 2 200, and shell 3 300 is docked to the portion of shell 2 200 away from shell 1 100.

[0036] Reference Figure 2 A mechatronic controlled oil extraction packer is provided in the packer, wherein a first sensor, a second sensor, a hydraulic pump, a hydraulic control system, and a hydraulic cylinder are installed. The packer is connected to an external control terminal. The hydraulic control system drives the hydraulic cylinder, and the hydraulic cylinder controls the expansion or contraction of the rubber cylinder 201. The first sensor monitors the hydraulic control system to facilitate adjustment of the pressure and flow of the hydraulic pump. The second sensor confirms whether the position and pressure of the rubber cylinder 201 meet the requirements. The external control terminal receives data from the first and second sensors through a signal receiver. The packer is lowered into the wellbore to the predetermined position. After being placed at the designated position, the hydraulic pump is started and the hydraulic cylinder is driven by the hydraulic control system to expand or contract the rubber sleeve 201 on the packer. The first sensor provides feedback and the pressure and flow of the hydraulic pump are adjusted. After reaching the predetermined position or pressure, the hydraulic pump is turned off to check whether the packer has reached the predetermined working state (expansion or contraction). The second sensor is used to confirm whether the position and pressure of the packer meet the requirements. If not, the packer is readjusted to the predetermined state to maintain the packer in the predetermined working state. After the operation is completed, the control system is turned off, the packer is unlocked, and the packer is removed from the wellbore.

[0037] Reference Figure 3 、 4 , 7, 10 and 12, the docking tube 202 is provided with a docking seat 203 at the portion facing the docking tube 1 101, and the docking seat 102 is configured on the periphery of the docking tube 202 at the portion facing the docking tube 1 101. The docking seat 203 and the docking seat 102 are both reserved with limiting channels arranged in an array. The periphery of the docking tube 1 101 facing the portion facing the docking tube 2 202 is milled with a surrounding groove 105, which is ring-shaped. The docking tube 2 202 is close to the docking tube. A plurality of guide channels 208 arranged in an array are milled on the peripheral surface of position 101. A linkage member 209 is provided for telescopic movement within the guide channel 208. The linkage member 209 has a portion protruding from the guide channel 208. After the telescopic movement, the linkage member 209 can correspond to the surrounding groove 105. An outward corner of the linkage member 209 is cut and defined as a slope. The linkage member 209 is moved toward the inner edge of the guide channel 208 by the action of the slope. A long channel 210 is milled on one side of the linkage member 209, and a flexible strip 211 is installed on the inner edge of the guide channel 208. The flexible strip 211 is elastic and is located in the long channel 210. When the outer cylinder 400 is linked to the linkage member 209 for telescopic movement, the linkage member 209 will cause the flexible strip 211 to change its shape.

[0038] Reference Figure 4 、 7 , 8 and 10, a connecting cavity 204 is reserved on the inner edge of the docking seat 203, and the connecting cavity 204 is ring-shaped. A flexible tubular bag 205 is fixedly connected to the inner edge of the connecting cavity 204. The flexible tubular bag 205 is subjected to the force of the linkage member 209 and is located in the middle position between the linkage member 209 and the surrounding groove 105. At this moment, the flexible tubular bag 205 is also in the middle position between the docking tube 202 and the docking tube 1 101. The flexible tubular bag 205 is at the inner edge of the docking tube 202. The part of the flexible tubular bag 205 away from the connecting cavity 204 is fixedly connected to a connecting seat 206. The connecting seat 206 telescopically moves on the inner edge of the docking tube 202. The outer peripheral surface of the connecting seat 206 is in contact with the inner edge of the docking tube 202. A number of straight channels 207 arranged in an array are reserved on the connecting seat 206.

[0039] Reference Figure 7 and 8 A limiting column 103 is installed at the opening edge of the docking tube 101 facing the docking tube 2 202. The limiting column 103 and the straight channel 207 are adapted to each other. A flexible ball 104 is fixedly connected to the part of the limiting column 103 facing the docking tube 2 202. The opening specification of the straight channel 207 is smaller than the specification of the flexible ball 104. When the connecting seat 206 and the docking tube 1 101 are in contact, the position of the limiting column 103 is corresponded to the straight channel 207. The flexible ball 104 extends out of the straight channel 207. Relying on the fact that the opening specification of the straight channel 207 is smaller than the specification of the flexible ball 104, a stable contact relationship between the connecting seat 206 and the docking tube 1 101 is guaranteed.

[0040] The above contents can be used to achieve the following: when docking the docking tube 101 and the docking tube 202, the connecting seat 206 in the docking tube 202 is matched to the docking tube 101, and the limiting column 103 and the flexible ball 104 are docked into the straight channel 207, so that the flexible ball 104 extends out of the straight channel 207, and then the docking tube 101 is moved toward the docking tube 202 to perform the docking operation. At this time, the connecting seat 206 moves synchronously with the docking tube 101, and the connecting seat 206 is linked to the flexible barrel bag 205 to change its shape. At this time, the flexible barrel bag 205 is in the middle position of the docking tube 202 and the docking tube 101, so as to better seal the docking point and close the outer barrel 4. 00 is rotated and moved toward the position of the second docking seat 203. When the outer cylinder 1 400 changes its position, the linkage member 209 is linked to the guide channel 208 for telescopic movement under the action of the slope. The linkage member 209 links the flexible strip 211 and the flexible barrel bag 205 to bend. The linkage member 209 moves inward and moves to the surrounding groove 1 105 and is located in the most central position. When the linkage member 209 contacts the surrounding groove 105, the telescopic movement relationship between the second docking cylinder 202 and the first docking cylinder 101 is also limited, and the flexible barrel bag 205 is placed in a taut state, further improving the sealing effect between the second docking cylinder 202 and the first docking cylinder 101. When maintenance, replacement or extension is required, the outer cylinder 1 400 is manipulated in the reverse direction so that the outer cylinder 1 400 and the linkage 209 are misaligned, the flexible strip 211 and the flexible cylinder bag 205 are no longer subjected to force and return to the initial state, the linkage 209 is separated from the flexible cylinder bag 205, and the restriction between the docking cylinder 202 and the docking cylinder 1 101 is released, and the two can be disassembled.

[0041] Reference Figure 4 and 11 The circumference of the docking tube 202 facing the docking tube 101 is connected with the outer tube 1 400 by thread, and the inner edge of the outer tube 1 400 is reserved with a surrounding groove 2 401, which is ring-shaped, and the inner edge of the surrounding groove 2 401 is hinged with a round seat 402, and the inner edge of the surrounding groove 2 401 is provided with an extension sleeve 403, which is used to ensure that the round seat 402 will not fall off when moving in the surrounding groove 2 401. A first locking column 404 is fixedly connected to the side of the round seat 402 facing the docking seat 102, and the first locking column 404 corresponds to the limiting channel. The first locking column 404 is located outside the docking seat 102 and is connected with a first locking sleeve by thread. After the first locking sleeve cooperates with the first locking column 404, the linkage part 209 is located in the middle position of the surrounding groove 105.

[0042] Reference Figure 4 and 11, an elastic member 501 is configured on the side of the docking seat 203 facing the docking seat 1 102, and a circular pad 500 is connected to the part of the elastic member 501 facing the docking seat 2 203, the circular pad 500 and the elastic member 501 are both on the circumference of the first locking column 404, and a guide channel 502 is milled on the outer periphery of the docking seat 102 near its upper limit channel, and a second locking column 503 is configured on the side of the circular pad 500 facing the docking seat 1 102, the second locking column 503 is in the guide channel 502, and the second locking sleeve is threaded on the outer periphery of the second locking column 503 outside the guide channel 502.

[0043] The above content can be used to achieve: the round pad 500 and the elastic member 501 are pre-connected to the outside of the first locking column 404, and when the first locking column 404 is connected to the limiting channel, the second locking column 503 corresponds to the guide channel 502, and the second locking thread is connected to the outside of the second locking column 503, and the elastic member 501 is in the middle position between the docking seat 2 203 and the docking seat 1 102.

[0044] Reference Figure 4 、 5 , 6, 7 and 9, a receiving chamber 600 is milled at the opening edge of the outer cylinder 400, and the outer cylinder 2 601 is threadedly connected to the outer periphery of the docking cylinder 101, and another part of the outer cylinder 2 601 is in the receiving chamber 600, and an outer groove and an inner groove are milled on the inner edge of the opening of the receiving chamber 600, and a first surrounding convex pad 602 is fixedly connected to the inner edge of the outer groove, and the first surrounding convex pad 602 is located at the outer periphery of the outer cylinder 2 601, and the first surrounding convex pad 602 is located in the middle of the outer cylinder 1 400 and the outer cylinder 2 601, and a second surrounding convex pad 603 is fixedly connected to the inner edge of the inner groove, and the second surrounding convex pad 603 is located in the middle of the outer cylinder 1 400 and the outer cylinder 2 601.

[0045] Reference Figure 7 , the opposite sides of the outer cylinder 2 601 and the outer cylinder 1 400 are fixedly connected with an extension seat 700, and a locking piece is threaded on the extension seat 700. The surfaces of the docking cylinder 1 101 and the docking cylinder 2 202 are both reserved with a locking channel 701, and the locking piece passes through the extension seat 700 and docks into the locking channel 701. The outer cylinder 2 601 and the outer cylinder 1 400 are both installed with a flexible shell 702 near the upper position of the extension seat 700. The other side of the flexible shell 702 is configured with a protrusion 703. The docking cylinder 101 and the docking cylinder 2 202 are both reserved with a locking channel 701. 1 and the circumference of the docking tube 202 are milled with an adaptation cavity 704, the protrusion 703 docks in the adaptation cavity 704, the flexible shell 702 is used to shield the extension seat 700, and the two extension seats 700 are respectively provided with a surrounding elastic pad 705 on one side facing the docking tube 202 and the docking tube 1 101. A pair of surrounding elastic pads 705 are used to block the docking position between the extension seat 700 and the docking tube 202 and the extension seat 700 and the docking tube 1 101, respectively.

[0046] Through the above, it is possible to achieve: after the outer cylinder 1 400 has fully acted on the linkage 209, the flexible shell 702 is moved, and the locking member is aligned with the locking channel 701. At this time, the position of the outer cylinder 1 400 is limited, and the flexible shell 702 is operated in reverse so that the protrusion 703 is engaged with the adapting cavity 704; the outer cylinder 2 601 enters the receiving cavity 600, and the position of the outer cylinder 2 601 is limited by the same operation, and the flexible shell on the outer cylinder 2 601 is used to lock the outer cylinder 2 601. 702 blocks the extension seat 700. When the docking cylinder 101 is docked to the docking cylinder 202, the outer cylinder 2 601 changes position in the storage cavity 600. The cooperation of the second surrounding convex pad 603 and the first surrounding convex pad 602 blocks the docking position of the storage cavity 600 and the outer cylinder 2 601, thereby isolating the inside and the outside. The cooperation of the outer cylinder 1 400 and the round seat 402 blocks the position of the docking seat 2 203 and the docking seat 1 102.

[0047] Working principle: When the packer needs to be lengthened or replaced, the positions of the docking tube 101 and the docking tube 202 are matched first, and the connecting seat 206 is pulled and matched to the opening part of the docking tube 101. The other part of the flexible barrel bag 205 is fixedly connected to the connecting cavity 204. At this moment, when the docking tube 101 is docked to the docking tube 202, the connecting seat 206 moves with the docking tube 101 into the docking tube 202. The state of the flexible barrel bag 205 changes and blocks the docking position of the docking tube 202 and the docking tube 101. The upper limit channel of the docking seat 102 is aligned with the first locking column 404, and is opened to the outside. The cylinder 1 400 performs a rotating operation. The round seat 402 is hinged in the surrounding groove 2 401, and the first locking post 404 is pre-connected to the limiting channel on the docking seat 2 203. At this moment, the first locking post 404 only undergoes telescopic movement with the threaded connection between the outer cylinder 1 400 and the docking cylinder 202. The first locking post 404 is docked in the limiting channel on the docking seat 1 102, and the position state of the first locking post 404 is limited by the first locking sleeve. The elastic member 501 is in the middle position between the docking seat 2 203 and the docking seat 1 102. The second locking post 503 is docked in the guide channel 502, and the second locking post 503 is docked in the guide channel 502. The locking sleeve limits the position state of the second locking column 503. When the outer cylinder 1 400 moves toward the position of the docking cylinder 101, the outer cylinder 1 400 relies on the slope side linkage linkage member 209 to perform telescopic movement in the guide channel 208. The linkage member 209 acts on the flexible strip 211 to bend and change. After the linkage member 209 acts on the flexible cylinder bag 205 and corresponds to the middle position of the surrounding groove 105, it performs a rotary motion on the outer cylinder 2 601. Under the action of the thread connection with the docking cylinder 101, the outer cylinder 2 601 corresponds to the storage cavity 600, and the first surrounding convex pad 602 and the second surrounding convex pad 60 3 is located at the bilateral position of the outer cylinder 2 601, and the two flexible shells 702 are moved in turn, and the locking member is aligned with the locking channel 701, thereby further defining the position state of the outer cylinder 1 400 and the outer cylinder 2 601. After the operation is completed, the flexible shell 702 is reversed and the protrusion 703 is aligned with the adapter cavity 704. The flexible shell 702 now blocks the position of the extension seat 700 and the locking member. After the docking is completed, the position of the docking cylinder 1 101 and the docking cylinder 2 202 can be pulled, and the stability of the docking cylinder 2 202 and the docking cylinder 1 101 after docking can be confirmed by relying on the bending of the elastic member 501.

[0048] It will be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An electromechanically controlled oil recovery packer, characterized by: It includes a shell one (100), a shell two (200) and a shell three (300); The packer is provided with a first sensor, a second sensor, a hydraulic pump, a hydraulic control system and a hydraulic cylinder, and the packer is connected to an external control terminal; The portion of the shell 1 (100) facing the shell 2 (200) is provided with a docking tube 1 (101), the portion of the shell 2 (200) facing the shell 1 (100) is provided with a docking tube 2 (202), a number of rubber tubes (201) are provided at the middle portion of the shell 2 (200), and the shell 3 (300) is docked with the portion of the shell 2 (200) away from the shell 1 (100); A docking seat 2 (203) is installed at the portion of the docking tube 2 (202) facing the docking tube 1 (101), and a docking seat 1 (102) is arranged on the periphery of the portion of the docking tube 1 (101) facing the docking tube 2 (202). Both the docking seat 2 (203) and the docking seat 1 (102) are reserved with limiting channels arranged in an array, and a surrounding groove 1 (105) is milled on the periphery of the portion of the docking tube 1 (101) facing the docking tube 2 (202), and the surrounding groove 1 (105) is ring-shaped; A connecting cavity (204) is reserved on the inner edge of the docking seat 2 (203), and the connecting cavity (204) is ring-shaped. A flexible barrel bag (205) is fixedly connected to the inner edge of the docking tube 2 (202). The flexible barrel bag (205) is located at the inner edge of the docking tube 2 (202). A connecting seat (206) is fixedly connected to the portion of the flexible barrel bag (205) away from the connecting cavity (204). The connecting seat (206) telescopically moves on the inner edge of the docking tube 2 (202). The outer peripheral surface of the connecting seat (206) is in contact with the inner edge of the docking tube 2 (202). A plurality of straight channels (207) arranged in an array are reserved on the connecting seat (206).

2. The electromechanically controlled oil recovery packer according to claim 1, characterized in that: The hydraulic control system drives the hydraulic cylinder, and the hydraulic cylinder controls the expansion or contraction of the rubber cylinder (201). The first sensor monitors the hydraulic control system to facilitate adjustment of the pressure and flow of the hydraulic pump. The second sensor confirms whether the position and pressure of the rubber cylinder (201) meet the requirements. The external control terminal receives data from the first sensor and the second sensor through a signal receiver.

3. The electromechanically controlled oil recovery packer according to claim 1, characterized in that: The second docking tube (202) is provided with a plurality of guide channels (208) arranged in an array on its peripheral surface near the first docking tube (101). A linkage member (209) is provided for telescopic movement in the guide channel (208). The linkage member (209) has a portion protruding from the guide channel (208). An outward corner of the linkage member (209) is cut and defined as a slope edge. A long channel (210) is milled on one side of the linkage member (209). A flexible strip (211) is provided on the inner edge of the guide channel (208). The flexible strip (211) is located in the long channel (210).

4. The electromechanically controlled oil recovery packer according to claim 1, characterized in that: A limiting column (103) is installed at the opening edge of the docking tube 1 (101) facing the docking tube 2 (202), and the limiting column (103) and the straight channel (207) are adapted to each other. A flexible ball (104) is fixedly connected to the portion of the limiting column (103) facing the docking tube 2 (202), and the opening specification of the straight channel (207) is smaller than the specification of the flexible ball (104).

5. The electromechanically controlled oil recovery packer according to claim 1, characterized in that: The circumferential surface of the docking tube 2 (202) facing the docking tube 1 (101) is threadedly connected to the outer tube 1 (400), and the inner edge of the outer tube 1 (400) is reserved with a surrounding groove 2 (401), and the surrounding groove 2 (401) is ring-shaped, and the inner edge of the surrounding groove 2 (401) is hinged with a round seat (402), and the inner edge of the surrounding groove 2 (401) is provided with an extension sleeve (403), and the side of the round seat (402) facing the docking seat 1 (102) is fixedly connected with a first locking column (404), and the first locking column (404) corresponds to the limiting channel, and the first locking column (404) is threadedly connected to the first locking sleeve at the outer circumference of the portion outside the docking seat 1 (102).

6. The electromechanically controlled oil recovery packer according to claim 1, characterized in that: The side of the docking seat 2 (203) facing the docking seat 1 (102) is provided with an elastic member (501), and the portion of the elastic member (501) facing the docking seat 2 (203) is connected with a circular pad (500), and the circular pad (500) and the elastic member (501) are both located on the circumference of the first locking column (404), and the docking seat 1 (102) is provided with a guide channel (502) on the periphery near its upper limit channel, and the side of the circular pad (500) facing the docking seat 1 (102) is provided with a second locking column (503), and the second locking column (503) is located in the guide channel (502), and the portion of the second locking column (503) outside the guide channel (502) is threaded with a second locking sleeve.

7. The electromechanically controlled oil recovery packer according to claim 4, characterized in that: The outer tube 1 (400) is milled with a receiving cavity (600) at the edge of its opening, the outer tube 2 (601) is threadedly connected to the outer tube 1 (101) at its outer periphery, the other portion of the outer tube 2 (601) is located in the receiving cavity (600), and the inner edge of the opening of the receiving cavity (600) is milled with an outer groove and an inner groove.

8. The electromechanically controlled oil recovery packer according to claim 7, characterized in that: The inner edge of the outer groove is fixedly connected to a first surrounding convex pad (602), the first surrounding convex pad (602) is located at the outer periphery of the outer cylinder (601), and the first surrounding convex pad (602) is located in the middle of the outer cylinder (400) and the outer cylinder (601). The inner edge of the inner groove is fixedly connected to a second surrounding convex pad (603), and the second surrounding convex pad (603) is located in the middle of the outer cylinder (400) and the outer cylinder (601).

9. The electromechanically controlled oil recovery packer according to claim 7, characterized in that: The opposite sides of the outer cylinder 2 (601) and the outer cylinder 1 (400) are fixedly connected with an extension seat (700), and a locking piece is threaded on the extension seat (700). The surfaces of the docking cylinder 1 (101) and the docking cylinder 2 (202) are both reserved with a locking channel (701), and the locking piece passes through the extension seat (700) and docks into the locking channel (701).

10. The electromechanically controlled oil recovery packer according to claim 7, characterized in that: The outer cylinder 2 (601) and the outer cylinder 1 (400) are both provided with a flexible shell (702) at an upper position close to the extension seat (700), and a protrusion (703) is provided on the other side of the flexible shell (702). The peripheral surfaces of the docking cylinder 1 (101) and the docking cylinder 2 (202) are both milled with an adapting cavity (704), and the protrusion (703) docks in the adapting cavity (704). The flexible shell (702) shields the extension seat (700), and the two extension seats (700) are both provided with a surrounding elastic pad (705) on one side facing the docking cylinder 2 (202) and the docking cylinder 1 (101).

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