High-temperature-resistant high-pressure-resistant corrosion-resistant rubber sleeve

Abstract

The invention discloses a high-temperature-resistant, high-pressure-resistant and corrosion-resistant rubber sleeve, and relates to the technical field of packer expansion rubber sleeves, the high-temperature-resistant, high-pressure-resistant and corrosion-resistant rubber sleeve comprises a plurality of rubber sleeve bodies arranged above a packer, the packer is arranged in a sleeve, and a pipe column used for extruding and driving the rubber sleeve bodies is arranged on the packer. In the using process of the packer, a sealing area is formed on the contact face between the rubber sleeve body and the inner side wall of a casing pipe through transmission, fluid such as oil gas and water can be prevented from flowing in an annular space in a shaft, the using effect of the rubber sleeve is achieved, and in the transmission process, through transmission, the rubber sleeve is not damaged. Irregular particles possibly existing in the relative positions of the sleeve and the rubber sleeve body are cleaned and removed, the situation that shoulder protrusions are formed by the irregular particles existing in the inner wall position of the sleeve after extrusion expansion of the rubber sleeve body is avoided, and the sealing performance of the rubber sleeve in the using process is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of packer expansion rubber cylinders, specifically a high-temperature, high-pressure and corrosion-resistant rubber cylinder. Background Art

[0002] In oil reservoir exploitation, in order to achieve layered exploitation of different oil layers, a packer needs to be lowered into the well. The rubber cylinder is installed on the packer. Through the downward pressure of the casing string on the packer, the rubber cylinder is extruded and deformed to expand and seal, and abuts against the inner wall of the casing, separating different oil layers, so that the fluids of each oil layer can independently enter the casing, facilitating the control and monitoring of parameters such as the production and pressure of each layer, and improving the exploitation efficiency and recovery rate.

[0003] To achieve the effect of low-carbon exploitation, the rubber cylinder selects renewable resource-based rubber as the matrix material of the rubber cylinder. Compared with traditional petroleum-based rubber, it can reduce carbon dioxide emissions during the production process. During the drilling process, due to reasons such as drilling cuttings residue, drilling tool wear, cement residue for well cementing, and debris of operation tools, some irregular particles will be generated inside the wall of the casing. Due to the existence of irregular particles on the wall, when the rubber cylinder expands and abuts, due to the toughness of the rubber cylinder itself, the irregular particles on the inner wall of the casing will change the local stress situation of the rubber cylinder during expansion. During the expansion process of the rubber cylinder, the resistance at the part encountering the particles increases, while other parts expand relatively smoothly. This leads to uneven pressure distribution on the surface of the rubber cylinder. Under the action of the pressure difference, the rubber cylinder is prone to stress concentration near and at the edge of the particles, so that the rubber cylinder material flows towards the shoulder with less resistance, forming a shoulder protrusion, which affects the sealing performance during the use of the rubber cylinder. For this reason, we propose a high-temperature, high-pressure and corrosion-resistant rubber cylinder. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-temperature, high-pressure and corrosion-resistant rubber cylinder to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-temperature, high-pressure and corrosion-resistant rubber cylinder, including multiple groups of rubber cylinder bodies arranged above the packer. The packer is arranged inside the casing, and a casing string for extruding and driving the rubber cylinder bodies is arranged on the packer;

[0006] It also includes a support sleeve fixed to the upper end of the packer. The casing string is slidably connected to the inside of the support sleeve. An installation component for installing multiple groups of rubber cylinder bodies is arranged on the support sleeve, and an extrusion component for extruding the rubber cylinder bodies is arranged on the support sleeve;

[0007] The installation component includes an annular positioning groove formed on the outer side of the support sleeve. Each rubber cylinder body is stacked in a sleeved state in sequence on the inner side of the annular positioning groove. An annular partition is arranged between two adjacent rubber cylinder bodies. The annular partition is sleeved on the annular positioning groove. The inner bottom of the annular positioning groove is rotatably connected with an annular support plate for rotatably supporting the lowermost rubber cylinder body.

[0008] The extrusion component includes an extrusion ring sleeved on the outer side of the support sleeve. The extrusion ring abuts against the upper side of the uppermost rubber cylinder body. A conical liquid spraying plate is connected above the extrusion ring through an elastic component. The conical liquid spraying plate is fixed on the pipe string. A liquid spraying component for cleaning the contact position on the inner side of the casing during the extrusion and sealing of the rubber cylinder body is arranged on the conical liquid spraying plate. A liquid supply component for assisting in liquid supply is arranged between the support sleeve and the conical liquid spraying plate. An annular groove is formed on the support sleeve. A connecting ring is connected inside the annular groove through a connecting component. The connecting ring is located inside the extrusion ring, and a transmission component for assisting in transmission is arranged between the connecting ring and the extrusion ring. A rotating component for rotating the connecting ring is arranged inside the support sleeve.

[0009] Preferably, the elastic component includes an annular plate rotatably connected below the conical liquid spraying plate. Multiple sets of sleeves are fixed on the annular plate. A sliding rod is slidably connected on the sleeve. One end of the sliding rod is fixed to the extrusion ring. A spring is sleeved on the outer side of the sleeve. The two ends of the spring abut against the annular plate and the extrusion ring respectively.

[0010] Preferably, the liquid spraying component includes an inner cavity formed on the inner side of the conical liquid spraying plate. Multiple sets of liquid spraying holes are formed below the conical liquid spraying plate in an annular array state. Each liquid spraying hole is in an outward inclined state, and each liquid spraying hole is communicated with the inside of the inner cavity.

[0011] Preferably, the liquid supply component includes an annular liquid storage cavity formed on the inner side of the support sleeve. The annular liquid storage cavity is filled with liquid. An annular piston plate for extruding the liquid inside the annular liquid storage cavity is slidably connected inside the annular liquid storage cavity. A through hole is formed on the annular piston plate. A delivery pipe communicated with the through hole is fixed on the annular piston plate. One end of the delivery pipe is fixed to the lower end of the conical liquid spraying plate and is communicated with the inside of the inner cavity.

[0012] Preferably, the transmission component includes multiple sets of chutes formed on the outer side of the connecting ring. A sliding pin is slidably connected on the chute. Each sliding pin is fixed to the inner side of the extrusion ring.

[0013] Preferably, the connecting component includes an annular connecting groove formed on the inner side of the annular groove. An annular connecting plate is rotatably connected inside the annular connecting groove. The cross-sections of the annular connecting groove and the annular connecting plate are arranged in a T shape. The annular connecting plate is fixed to the connecting ring, and the support sleeve, the annular groove, the connecting ring, the annular connecting groove, and the annular connecting plate are arranged concentrically.

[0014] Preferably, the rotating component includes an L-shaped frame fixed to the inner side of the annular liquid storage cavity. A mounting shaft is rotatably connected to the L-shaped frame. A first gear is fixed to the mounting shaft. A toothed ring is fixed to the inner side of the connecting ring. The first gear and the toothed ring are meshed with each other. A first driving component for driving the mounting shaft is arranged inside the annular liquid storage cavity.

[0015] Preferably, the first driving component includes a connecting shaft rotatably connected to the L-shaped frame. A first bevel gear is fixed to the connecting shaft. A second bevel gear is fixed to the mounting shaft. The first bevel gear and the second bevel gear are meshed with each other. A second driving component for driving the connecting shaft is arranged inside the annular liquid storage cavity.

[0016] Preferably, the second driving component includes a second gear fixed to the connecting shaft. A rack is arranged inside the annular liquid storage cavity. The rack and the second gear are meshed with each other. One end of the rack is fixed to the annular piston plate.

[0017] Preferably, the rubber barrel body is made of recycled nitrile rubber.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] During the use of the rubber barrel of the present invention, through transmission, a sealing area is formed on the contact surface between the rubber barrel body and the inner side wall of the casing, which can prevent the annular flow of fluids such as oil and gas and water in the wellbore, achieving the use effect of the rubber barrel. During the transmission process, through transmission, irregular particles that may exist in the relative positions of the casing and the rubber barrel body are cleaned and removed, avoiding the formation of shoulder protrusions on the rubber barrel body after extrusion and expansion due to the irregular particles on the inner wall of the casing, and ensuring the sealing performance during the use of the rubber barrel.

[0020] The rubber barrel of the present invention is made of recycled nitrile rubber, which has good mechanical properties, oil resistance, corrosion resistance, and anti-aging properties, can adapt to high-temperature and high-pressure environments, realize the high-temperature, high-pressure, and high-corrosion resistance of the rubber barrel, and the rubber barrel made of recycled nitrile rubber requires less energy input in raw material treatment, polymerization reaction and other links, and can achieve low-carbon oil exploitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0022] Figure 2 Schematic diagram of the positional relationship between the rubber cylinder and the packer of the present invention;

[0023] Figure 3 Schematic sectional structure diagram of the support sleeve and the rubber cylinder of the present invention;

[0024] Figure 4 Schematic structure diagram of the installation component, extrusion component, elastic component and liquid spraying component of the present invention;

[0025] Figure 5 Schematic structure diagram of the connection component and the transmission component of the present invention;

[0026] Figure 6 Schematic structure diagram of the liquid supply component of the present invention;

[0027] Figure 7 Schematic structure diagram of the first driving component, the second driving component and the rotating component of the present invention;

[0028] Figure 8 Schematic diagram of the liquid spraying and rotating process of the present invention.

[0029] In the figure: 101 - casing; 102 - packer; 103 - rubber cylinder body; 104 - pipe string; 2 - support sleeve; 301 - annular positioning groove; 302 - annular partition; 303 - annular support plate; 401 - extrusion ring; 402 - conical liquid spraying plate; 501 - annular plate; 502 - sleeve; 503 - sliding rod; 504 - spring; 601 - inner cavity; 602 - liquid spraying hole; 701 - annular liquid storage cavity; 702 - annular piston plate; 703 - through hole; 704 - delivery pipe; 8 - annular groove; 9 - connecting ring; 1001 - annular connection groove; 1002 - annular connecting plate; 1101 - chute; 1102 - sliding pin; 1201 - L-shaped frame; 1202 - mounting shaft; 1203 - first gear; 1204 - gear ring; 1301 - connecting shaft; 1302 - first bevel gear; 1303 - second bevel gear; 1401 - second gear; 1402 - rack. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figures 1-8The high temperature, high pressure and corrosion resistant rubber cartridge shown in the figure comprises a plurality of rubber cartridge bodies 103 arranged above the packer 102, the packer 102 is arranged inside the casing 101, and a pipe column 104 for squeezing and driving the rubber cartridge body 103 is arranged on the packer 102;

[0033] It should be noted that: multiple groups of slips are arranged on the packer 102. When the packer 102 is in use, the packer 102 is placed at the corresponding position of the casing 101. After the packer 102 is pushed and placed, the upper pipe string 104 of the packer 102 is lifted and pressed down, so that each group of slips on the packer 102 is driven to abut against the inner wall of the casing 101. A large friction force is generated between the slips and the inner wall of the casing 101. This friction force can prevent the slips from sliding on the inner wall of the casing 101, so that the packer 102 is firmly seated on the inner wall of the casing 101.

[0034] It is worth noting here that: the structure of the packer 102 is provided with a track groove and a lug matched therewith. When the packer 102 is lowered into the well, the lug is in the short groove of the automatic groove. When the packer 102 is lowered to the predetermined well depth, the pipe column 104 is first lifted up to make the lug in the lower position of the short groove, and then rotated right. At this time, the lug will enter the long groove from the short groove. The rotation of the pipe column 104 realizes the position conversion of the lug in the track groove, preparing for the subsequent downward pressure action. When the pipe column 104 rotates to make the lug enter the long groove, the pipe column 104 is lowered and the compression load is applied. As the string 104 is pressed downward, the setting mandrel moves downward, and the cone in the packer 102 also moves downward. Due to the specific inclined plane matching relationship between the cone and the slip, the downward movement of the cone will generate a radial component force, which will open the slip, so that the corners of the alloy block on the slip are embedded in the inner wall of the casing 101, thereby achieving the fixation of the slip on the inner wall of the casing 101. The entire driving principle and operation method are conventional technical means in the technical field of the packer 102, and will not be further elaborated in the application;

[0035] It also includes a support sleeve 2 fixed to the upper end of the packer 102, a pipe string 104 is slidably connected to the inner side of the support sleeve 2, a mounting assembly for mounting multiple groups of rubber cartridge bodies 103 is provided on the support sleeve 2, and an extrusion assembly for extruding the rubber cartridge body 103 is provided on the support sleeve 2;

[0036] The mounting assembly includes an annular positioning groove 301 provided on the outside of the support sleeve 2, and each group of rubber cartridge bodies 103 are stacked in sequence on the inner side of the annular positioning groove 301 in a sleeved state, and an annular partition plate 302 is provided between two adjacent groups of rubber cartridge bodies 103, and the annular partition plate 302 is sleeved on the annular positioning groove 301, and an annular support plate 303 for rotatably supporting the bottom rubber cartridge body 103 is rotatably connected to the inner bottom of the annular positioning groove 301;

[0037] The extrusion assembly includes an extrusion ring 401 sleeved outside the support sleeve 2. The extrusion ring 401 abuts against the upper side of the uppermost rubber cylinder body 103. Above the extrusion ring 401, a conical liquid spraying plate 402 is connected through an elastic component. The conical liquid spraying plate 402 is fixed on the pipe string 104. A liquid spraying component for cleaning the contact position on the inner side of the casing 101 during the extrusion and sealing process of the rubber cylinder body 103 is arranged on the conical liquid spraying plate 402. A liquid supply component for assisting liquid supply is arranged between the support sleeve 2 and the conical liquid spraying plate 402. An annular groove 8 is formed on the support sleeve 2. An annular connecting ring 9 is connected inside the annular groove 8 through a connecting component. The connecting ring 9 is located inside the extrusion ring 401, and a transmission component for assisting transmission is arranged between the connecting ring 9 and the extrusion ring 401. A rotating component for rotating the connecting ring 9 is arranged inside the support sleeve 2;

[0038] It should be noted here that during the use of the packer 102, through transmission, a sealing area is formed on the contact surface between the rubber cylinder body 103 and the inner side wall of the casing 101, which can prevent the flow of fluids such as oil, gas, and water in the annulus of the wellbore, achieving the use effect of the rubber cylinder. During the transmission process, through transmission, irregular particulate matters that may exist in the relative positions of the casing 101 and the rubber cylinder body 103 are cleaned and removed, avoiding the formation of shoulder protrusions on the rubber cylinder body 103 after extrusion and expansion due to the irregular particulate matters on the inner wall position of the casing 101, and ensuring the sealing performance during the use of the rubber cylinder.

[0039] Preferably, the elastic component includes an annular plate 501 rotatably connected below the conical liquid spraying plate 402. A plurality of sets of sleeves 502 are fixed on the annular plate 501. A sliding rod 503 is slidably connected on the sleeve 502. One end of the sliding rod 503 is fixed to the extrusion ring 401. A spring 504 is sleeved outside the sleeve 502. Both ends of the spring 504 abut against the annular plate 501 and the extrusion ring 401 respectively;

[0040] It should be noted here that during the downward movement of the pipe string 104, with the movement of the pipe string 104, the conical liquid spraying plate 402 is driven to move towards the extrusion ring 401. During the movement of the conical liquid spraying plate 402, through the connection of the annular plate 501, each group of sliding rods 503 is pushed to slide on each group of sleeves 502 respectively under force and the spring 504 is deformed under force to generate elastic force. The extrusion ring 401 is extruded through the elastic force of the spring 504. During the extrusion process, through the abutting connection of each group of annular partition plates 302 between adjacent rubber cylinder bodies 103, each group of rubber cylinder bodies 103 placed inside the annular positioning groove 301 is deformed under the extrusion of the extrusion ring 401.

[0041] Preferably, the liquid spraying assembly includes an inner cavity 601 formed inside the conical liquid spraying plate 402. A plurality of groups of liquid spraying holes 602 arranged in an annular array are formed below the conical liquid spraying plate 402. Each group of liquid spraying holes 602 is inclined outward, and each group of liquid spraying holes 602 is communicated with the inside of the inner cavity 601. The liquid supply assembly includes an annular liquid storage cavity 701 formed inside the support sleeve 2. The inside of the annular liquid storage cavity 701 is filled with liquid. An annular piston plate 702 for squeezing the liquid inside the annular liquid storage cavity 701 is slidably connected inside the annular liquid storage cavity 701. A through hole 703 is formed in the annular piston plate 702. A delivery pipe 704 communicated with the through hole 703 is fixed on the annular piston plate 702. One end of the delivery pipe 704 is fixed to the lower end of the conical liquid spraying plate 402 and is communicated with the inside of the inner cavity 601.

[0042] It should be noted here that: during the process of pushing the conical liquid spraying plate 402 towards the extrusion ring 401, due to the connection of the delivery pipe 704, the annular piston plate 702 is pushed to move downward inside the annular liquid storage cavity 701. During the movement of the annular piston plate 702, due to the squeezing effect of the annular piston plate 702 on the liquid inside the annular liquid storage cavity 701 and the connection and delivery effect of the through hole 703 and the delivery pipe 704, the liquid stored inside the annular liquid storage cavity 701 is squeezed and delivered to the inner cavity 601 of the conical liquid spraying plate 402 and is sprayed out through each group of liquid spraying holes 602 towards the inner wall of the sleeve 101. The position on the inner wall of the sleeve 101 where the expanded rubber cylinder body 103 is about to abut is cleaned by the sprayed liquid.

[0043] Preferably, the transmission assembly includes a plurality of groups of sliding grooves 1101 formed on the outer side of the connecting ring 9. Sliding pins 1102 are slidably connected to the sliding grooves 1101. Each group of sliding pins 1102 is fixed to the inner side of the extrusion ring 401.

[0044] It should be noted here that: due to the connection and transmission effect of the plurality of groups of sliding grooves 1101 and the sliding pins 1102, it is convenient to drive the extrusion ring 401 to rotate while the connecting ring 9 rotates. And during the transmission process, due to the action of the plurality of groups of sliding grooves 1101 and the sliding pins 1102, the extrusion ring 401 can move up and down on the outer side of the connecting ring 9 while rotating.

[0045] Preferably, the connection assembly includes an annular connection groove 1001 formed inside the annular groove 8. An annular connecting plate 1002 is rotatably connected inside the annular connection groove 1001. The cross sections of the annular connection groove 1001 and the annular connecting plate 1002 are in a T-shaped setting. The annular connecting plate 1002 is fixed to the connecting ring 9, and the support sleeve 2, the annular groove 8, the connecting ring 9, the annular connection groove 1001 and the annular connecting plate 1002 are concentrically arranged.

[0046] It should be noted here that: through the annular connecting groove 1001 and the annular connecting plate 1002, it is convenient to assist the rotatable connection of the connecting ring 9.

[0047] Preferably, the rotating assembly includes an L-shaped frame 1201 fixed to the inner side of the annular liquid storage cavity 701. An installation shaft 1202 is rotatably connected to the L-shaped frame 1201. A first gear 1203 is fixed to the installation shaft 1202. A toothed ring 1204 is fixed to the inner side of the connecting ring 9. The first gear 1203 and the toothed ring 1204 are meshed with each other. A first driving assembly for driving the installation shaft 1202 is arranged inside the annular liquid storage cavity 701.

[0048] It should be noted here that: through transmission, the installation shaft 1202 and the first gear 1203 at one end of the installation shaft 1202 are driven to rotate. During the rotation of the first gear 1203, through the meshing transmission between the first gear 1203 and the toothed ring 1204, the connecting ring 9 is driven to rotate inside the annular groove 8. During the rotation of the connecting ring 9, through the connection and transmission action of each sliding pin 1102 and each sliding groove 1101, the extrusion ring 401 is driven to rotate.

[0049] Preferably, the first driving assembly includes a connecting shaft 1301 rotatably connected to the L-shaped frame 1201. A first bevel gear 1302 is fixed to the connecting shaft 1301. A second bevel gear 1303 is fixed to the installation shaft 1202. The first bevel gear 1302 and the second bevel gear 1303 are meshed with each other. A second driving assembly for driving the connecting shaft 1301 is arranged inside the annular liquid storage cavity 701.

[0050] It should be noted here that: during the rotation of the connecting shaft 1301, through the meshing transmission between the first bevel gear 1302 and the second bevel gear 1303, the installation shaft 1202 and the first gear 1203 at one end of the installation shaft 1202 are driven to rotate.

[0051] Preferably, the second driving assembly includes a second gear 1401 fixed to the connecting shaft 1301. A rack 1402 is arranged inside the annular liquid storage cavity 701. The rack 1402 and the second gear 1401 are meshed with each other. One end of the rack 1402 is fixed to the annular piston plate 702.

[0052] It should be noted here that: during the process of the annular piston plate 702 being pushed by transmission to move downward inside the annular liquid storage cavity 701, as the annular piston plate 702 moves, the rack 1402 is driven to move synchronously. During the movement of the rack 1402, through the meshing transmission between the rack 1402 and the second gear 1401, the connecting shaft 1301 is driven to rotate under force.

[0053] Preferably, the rubber cylinder body 103 is made of recycled nitrile rubber material;

[0054] It should be noted here that the recycled nitrile rubber material has good mechanical properties, oil resistance, corrosion resistance and anti-aging properties, can adapt to a certain high temperature and high pressure environment, can withstand high temperature, high pressure and corrosion, and realizes the high temperature, high pressure and high corrosion resistance of the rubber cylinder. Compared with traditional petroleum-based rubber, the production process of recycled nitrile rubber is relatively simple, and less energy input is required in the raw material treatment, polymerization reaction and other links. The reduction of energy consumption directly means the reduction of carbon dioxide emissions generated during the production and use of energy, realizing low-carbon exploitation. Among them, the recycled nitrile rubber material is a common use material, and its raw material composition and processing method are prior art in this application and will not be elaborated here.

[0055] In this solution, the high temperature, high pressure and corrosion resistant rubber cylinder includes the following steps:

[0056] During the use of the packer 102, the packer 102 is placed at the corresponding position of the casing 101. After the pushing and placing are completed, by lifting and pressing the tubing string 104 on the packer 102, each group of slips on the packer 102 is driven to abut against the inner wall of the casing 101. A large frictional force will be generated between the slips and the inner side wall of the casing 101. This frictional force can prevent the slips from sliding on the inner wall of the casing 101, so that the packer 102 is firmly seated on the inner wall of the casing 101;

[0057] During the downward pressing of the pipe string 104, with the movement of the pipe string 104, the conical liquid spraying plate 402 is driven to move towards the extrusion ring 401. During the movement of the conical liquid spraying plate 402, through the connection of the annular plate 501, each group of sliding rods 503 is pushed to slide on each group of sleeves 502 respectively under force, and the spring 504 is deformed under force to generate elastic force. The extrusion ring 401 is extruded by the elastic force of the spring 504. During the extrusion process, through the abutting connection of each group of annular partitions 302 between adjacent rubber cylinder bodies 103, each group of rubber cylinder bodies 103 placed inside the annular positioning groove 301 is deformed under the extrusion of the extrusion ring 401. This extrusion force forms a sealing area on the contact surface between the rubber cylinder body 103 and the inner side wall of the casing 101, which can prevent the flow of fluids such as oil and gas and water in the annulus of the wellbore, achieving the use effect of the rubber cylinder. During the process of driving the conical liquid spraying plate 402 to move towards the extrusion ring 401, through the connection of the delivery pipe 704, the annular piston plate 702 is pushed to move downward inside the annular liquid storage cavity 701 under force. During the movement of the annular piston plate 702, through the extrusion of the liquid inside the annular liquid storage cavity 701 by the annular piston plate 702 and the connection and delivery effect of the through hole 703 and the delivery pipe 704, the liquid stored inside the annular liquid storage cavity 701 is extruded and delivered to the inner cavity 601 of the conical liquid spraying plate 402 and sprayed towards the inner wall of the casing 101 through each group of liquid spraying holes 602 (see Figure 8 status). The position on the inner wall of the casing 101 that will abut against the expanded rubber cylinder body 103 is washed and cleaned by the sprayed liquid to remove the irregular particulate matter that may exist at this position, avoiding the formation of shoulder protrusions on the rubber cylinder body 103 after extrusion and expansion due to the irregular particulate matter on the inner wall position of the casing 101, and ensuring the sealing performance during the use of the rubber cylinder;

[0058] When the annular piston plate 702 is pushed by the transmission to move downward inside the annular liquid storage cavity 701, with the movement of the annular piston plate 702, the rack 1402 is driven to move synchronously. During the movement of the rack 1402, through the meshing transmission between the rack 1402 and the second gear 1401, the connecting shaft 1301 is forced to rotate. During the rotation of the connecting shaft 1301, through the meshing transmission between the first bevel gear 1302 and the second bevel gear 1303, the mounting shaft 1202 and the first gear 1203 at one end of the mounting shaft 1202 are driven to rotate. During the rotation of the first gear 1203, through the meshing transmission between the first gear 1203 and the gear ring 1204, the connecting ring 9 is driven to rotate inside the annular groove 8. During the rotation of the connecting ring 9, through the connecting and driving action of each sliding pin 1102 and each sliding groove 1101 respectively, the extrusion ring 401 is driven to rotate. Since the extrusion ring 401 abuts against the uppermost rubber cylinder body 103, through the rotation of the extrusion ring 401 and the abutting and extruding action between the extrusion ring 401 and the rubber cylinder body 103 and the adjacent rubber cylinder bodies 103, the expanded rubber cylinder bodies 103 rotate synchronously. By rotating the rubber cylinder bodies 103, a centrifugal force will be generated. For the irregular particles flowing down after the cleaning treatment, the centrifugal force will cause them to tend to move away from the center of the rubber cylinder body 103 and disperse into the space around the rubber cylinder body 103, rather than falling on the surface of the rubber cylinder, further avoiding the formation of shoulder protrusions.

[0059] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High temperature, high pressure and corrosion resistant rubber cartridge, including: A plurality of groups of rubber cartridge bodies (103) are arranged above the packer (102), wherein the packer (102) is arranged inside the casing (101), and a pipe column (104) is arranged on the packer (102) for squeezing and driving the rubber cartridge body (103); It is characterized by further comprising: A support sleeve (2) fixed to the upper end of the packer (102), the pipe column (104) being slidably connected to the inner side of the support sleeve (2), the support sleeve (2) being provided with a mounting assembly for mounting multiple groups of rubber cartridge bodies (103), and the support sleeve (2) being provided with an extrusion assembly for extruding the rubber cartridge body (103); The mounting assembly comprises an annular positioning groove (301) provided on the outside of the support sleeve (2); each group of the rubber cartridge bodies (103) are stacked in sequence on the inside of the annular positioning groove (301) in a sleeved state; an annular partition plate (302) is provided between two adjacent groups of rubber cartridge bodies (103); the annular partition plate (302) is sleeved on the annular positioning groove (301); the inner bottom of the annular positioning groove (301) is rotatably connected to an annular support plate (303) for rotatably supporting the bottom rubber cartridge body (103); The extrusion assembly comprises an extrusion ring (401) sleeved on the outside of the support sleeve (2), the extrusion ring (401) being arranged to abut against the upper side of the uppermost rubber cartridge body (103), a conical liquid spraying plate (402) being connected to the upper side of the extrusion ring (401) via an elastic component, the conical liquid spraying plate (402) being fixed on the pipe column (104), and a liquid spraying assembly for cleaning the contact position on the inner side of the sleeve (101) during the extrusion sealing process of the rubber cartridge body (103) being arranged on the conical liquid spraying plate (402). A liquid supply component for assisting liquid supply is arranged between the support sleeve (2) and the conical liquid spray plate (402); an annular groove (8) is provided on the support sleeve (2); a connecting ring (9) is connected to the inside of the annular groove (8) via a connecting component; the connecting ring (9) is located on the inner side of the extrusion ring (401); a transmission component for assisting transmission is arranged between the connecting ring (9) and the extrusion ring (401); and a rotating component for rotating the connecting ring (9) is arranged inside the support sleeve (2).

2. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 1, characterized in that: The elastic component comprises an annular plate (501) rotatably connected to the bottom of the conical liquid spraying plate (402), a plurality of sleeves (502) are fixed on the annular plate (501), a sliding rod (503) is slidably connected to the sleeve (502), one end of the sliding rod (503) is fixed to the extrusion ring (401), a spring (504) is sleeved on the outer side of the sleeve (502), and the two ends of the spring (504) are respectively arranged to abut against the annular plate (501) and the extrusion ring (401).

3. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 2, characterized in that: The liquid spraying assembly comprises an inner cavity (601) opened on the inner side of a conical liquid spraying plate (402), and a plurality of groups of liquid spraying holes (602) arranged in a circular array are opened below the conical liquid spraying plate (402), each group of the liquid spraying holes (602) is inclined outward, and each group of the liquid spraying holes (602) is communicated with the interior of the inner cavity (601).

4. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 3, characterized in that: The liquid supply assembly comprises an annular liquid storage chamber (701) provided on the inner side of the support sleeve (2), the interior of the annular liquid storage chamber (701) is filled with liquid, the interior of the annular liquid storage chamber (701) is slidably connected with an annular piston plate (702) for squeezing the liquid inside the annular liquid storage chamber (701), a through hole (703) is provided on the annular piston plate (702), a delivery pipe (704) in communication with the through hole (703) is fixed on the annular piston plate (702), one end of the delivery pipe (704) is fixed to the lower end of the conical liquid spraying plate (402) and is in communication with the interior of the inner chamber (601).

5. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 4, characterized in that: The transmission assembly comprises a plurality of groups of slide grooves (1101) opened on the outside of the connecting ring (9), and a sliding pin (1102) is slidably connected to the slide grooves (1101), and each group of the sliding pins (1102) is fixed to the inner side of the extrusion ring (401).

6. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 5, characterized in that: The connection assembly comprises an annular connection groove (1001) formed on the inner side of the annular groove (8); an annular connection plate (1002) is rotatably connected to the interior of the annular connection groove (1001); the cross-sections of the annular connection groove (1001) and the annular connection plate (1002) are T-shaped; the annular connection plate (1002) is fixed on the connection ring (9); and the support sleeve (2), the annular groove (8), the connection ring (9), the annular connection groove (1001) and the annular connection plate (1002) are arranged in a concentric state.

7. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 5, characterized in that: The rotating assembly comprises an L-shaped frame (1201) fixed to the inner side of an annular liquid storage chamber (701); a mounting shaft (1202) is rotatably connected to the L-shaped frame (1201); a first gear (1203) is fixed to the mounting shaft (1202); a gear ring (1204) is fixed to the inner side of the connecting ring (9); the first gear (1203) and the gear ring (1204) are meshed with each other; and a first driving assembly for driving the mounting shaft (1202) is arranged inside the annular liquid storage chamber (701).

8. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 7, characterized in that: The first driving assembly comprises a connecting shaft (1301) rotatably connected to the L-shaped frame (1201), a first bevel gear (1302) being fixed on the connecting shaft (1301), a second bevel gear (1303) being fixed on the mounting shaft (1202), the first bevel gear (1302) and the second bevel gear (1303) being meshed with each other, and a second driving assembly for driving the connecting shaft (1301) is arranged inside the annular liquid storage chamber (701).

9. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 8, characterized in that: The second driving assembly includes a second gear (1401) fixed on the connecting shaft (1301), and a rack (1402) is arranged inside the annular liquid storage chamber (701). The rack (1402) and the second gear (1401) are meshed with each other, and one end of the rack (1402) is fixed to the annular piston plate (702).

10. The high temperature, high pressure and corrosion resistant rubber cartridge according to claim 1, characterized in that: The rubber cylinder body (103) is made of recycled nitrile rubber.

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