Packer convenient for dismounting contact arc plate

Abstract

The packer comprises connecting pipes, a sealing mechanism is arranged between the two sets of connecting pipes, the two sets of contact arc plates are symmetrically arranged on the outer sides of the two sets of connecting pipes, and clamping grooves are formed in the inner sides of the contact arc plates and the outer sides of the connecting pipes. The two clamping grooves are connected through a spring clamping block mechanism, and movable clamping plate mechanisms used in cooperation with the spring clamping block mechanism are installed on the inner side of the contact arc plate and the outer side of the connecting pipe. The movable clamping plate mechanism comprises a clamping plate, a fixing plate is installed at the top of the clamping plate, a sleeve is arranged at the top of the fixing plate, and the sleeve is connected with the lead screw mechanism. According to the packer convenient to disassemble the contact arc plates, in order to solve the problems that the contact arc plates of an existing packer are prone to being damaged in the long-term use process, and the contact arc plates are inconvenient to disassemble and replace, the two sets of contact arc plates are symmetrically arranged on the outer sides of the two sets of connecting pipes.

Description

Technical Field

[0001] This utility model relates to the field of packer technology, specifically a packer that facilitates the disassembly of the contact arc plate. Background Technology

[0002] A packer is a downhole tool generally connected to the downhole tubing string to seal the annular space between the tubing and the casing or open hole of an oil or gas well. Packers are classified into expansion packers, compression packers, self-sealing packers, wedge packers, self-expanding packers, and combined packers, among others. The fracturing packer is a compression packer with unidirectional slip support, rotary setting, and pull-up release. It mainly consists of an upper connector, sealing tube, slip assembly, centralizer assembly, center tube, T-hook, and lower connector.

[0003] A search revealed that existing technology, such as the one described in publication number CN217841602U, involves a fracturing packer comprising a first connecting pipe and a second connecting pipe, with a sealing mechanism and a protective mechanism disposed between them. The sealing mechanism includes a first bearing ring, a second bearing ring, a sealing ring, a magnetic column, a first fixing block, and a second fixing block. The first bearing ring is fitted onto the outer circumferential surface of one end of the first connecting pipe, and the second bearing ring is fitted onto the outer circumferential surface of one end of the second connecting pipe. An annular positioning groove is formed on the side of the first bearing ring away from the first connecting pipe. The sealing ring is a hollow frustum shape, with its larger end diameter fixedly connected to the side of the second bearing ring away from the second connecting pipe. The protective mechanism includes a bearing cap, a support spring, a contact arc plate, and an assembly arc plate. Four bearing caps are provided and respectively fixedly disposed on the outer circumferential surface of the middle end of the first and second connecting pipes. This invention improves the sealing and protective effects of the packer.

[0004] In summary, existing packers improve the sealing and protective effects, but the contact arc plates of existing packers are prone to damage during long-term use, and it is inconvenient to disassemble and replace the contact arc plates. Therefore, a packer that facilitates the disassembly of the contact arc plates is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a packer that facilitates the disassembly of the contact arc plate, thereby solving the problem mentioned in the background art that the contact arc plate of the existing packer is prone to damage during long-term use, and it is inconvenient to disassemble and replace the contact arc plate when it is necessary.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a packer for easy disassembly of contact arc plates, comprising connecting pipes, a sealing mechanism between two sets of connecting pipes, two sets of contact arc plates symmetrically arranged on the outer sides of the two sets of connecting pipes, and slots installed on the inner sides of the contact arc plates and the outer sides of the connecting pipes, the two sets of slots being connected by a spring-loaded locking mechanism, and a movable locking plate mechanism cooperating with the spring-loaded locking mechanism being installed on the inner sides of the contact arc plates and the outer sides of the connecting pipes; the movable locking plate mechanism includes a locking plate, and a fixing plate is installed on the top of the locking plate, a sleeve is provided on the top of the fixing plate, and the sleeve is connected to a lead screw mechanism, one end of the lead screw mechanism being connected to a throttle handle provided above the mounting plate.

[0007] Preferably, a connecting flange is installed at the outer end of the connecting pipe.

[0008] The above technical solution facilitates connection with the outside world.

[0009] Preferably, an elastic locking mechanism is installed on the outer side of the contact arc plate mentioned above, and a locking groove that cooperates with the elastic locking mechanism is installed on the outer side of the contact arc plate below it.

[0010] The above technical solution facilitates the disassembly and connection between contact arc plates.

[0011] Preferably, the elastic locking mechanism includes a positioning block, and a moving groove is provided inside the positioning block. A first moving plate is slidably disposed inside the moving groove. A locking block is installed on one side of the first moving plate, and one end of the locking block extends through to the outside of the positioning block. The other side of the first moving plate is connected to a second moving plate through a driving block, and the second moving plate is connected to the inner wall of the moving groove through a spring. One side of the driving block is connected to a pull handle through a driving rod, and a moving through groove that cooperates with the driving rod is provided on the positioning block.

[0012] The above technical solution facilitates the disassembly and connection between contact arc plates.

[0013] Preferably, the spring-loaded locking mechanism includes two sets of locking block connectors, and the two sets of locking block connectors are connected by a support spring. The locking block connectors are provided with locking plate grooves for use with locking plates.

[0014] The above technical solution facilitates connection buffering.

[0015] Preferably, a stabilizing plate that is slidably connected to the sleeve is installed on the inner side of the contact arc plate and the outer side of the connecting pipe.

[0016] The above technical solution improves the stability of the sleeve during movement.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This packer facilitates the disassembly of the contact arc plate. To solve the problem that existing packers' contact arc plates are prone to damage during long-term use, making disassembly and replacement inconvenient, this device symmetrically arranges two sets of contact arc plates on the outer sides of two sets of connecting pipes. Slots are installed on the inner sides of the contact arc plates and the outer sides of the connecting pipes. The two sets of slots are connected by a spring-loaded locking mechanism. A movable locking plate mechanism, which works in conjunction with the spring-loaded locking mechanism, is installed on the inner sides of the contact arc plates and the outer sides of the connecting pipes. The movable locking plate mechanism includes a locking plate, with a fixed plate installed on top of the locking plate. A sleeve is installed on top of the fixed plate and connected to a lead screw mechanism. One end of the lead screw mechanism is connected to a handle located above the mounting plate. When disassembly of the contact arc plate is required, the handle on one side of the contact arc plate is rotated. Under the action of the handle, the locking plate moves. When the locking plate is no longer in contact with the spring-loaded locking mechanism, the contact arc plate can be disassembled and replaced. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the positional relationship between the contact arc plate and the connecting pipe of this utility model;

[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point C.

[0023] In the diagram: 1. Connecting pipe; 2. Sealing mechanism; 3. Contact arc plate; 4. Slot; 5. Spring block mechanism; 501. Block connector; 502. Support spring; 6. Moving plate mechanism; 601. Plate; 602. Fixing plate; 603. Sleeve; 604. Screw mechanism; 605. Mounting plate; 606. Turning handle; 7. Connecting flange; 8. Elastic block mechanism; 801. Positioning block; 802. First moving plate; 803. Block; 804. Drive block; 805. Second moving plate; 806. Spring; 807. Drive rod; 808. Pull handle; 9. Block slot; 10. Stabilizing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a packer that facilitates the disassembly of the contact arc plate. Two sets of contact arc plates 3 are symmetrically arranged on the outer side of two sets of connecting pipes 1, and slots 4 are installed on the inner side of the contact arc plate 3 and the outer side of the connecting pipe 1. The two sets of slots 4 are connected by a spring-loaded locking mechanism 5, and a movable locking plate mechanism 6 that cooperates with the spring-loaded locking mechanism 5 is installed on the inner side of the contact arc plate 3 and the outer side of the connecting pipe 1.

[0026] To further explain, a sealing mechanism 2 is provided between the two sets of connecting pipes 1. The sealing mechanism 2 is existing technology and will not be described in detail. For the specific structure, please refer to the relevant description in the announcement number CN217841602U, "A Fracturing Packer". A connecting flange 7 is installed at the outer end of the connecting pipe 1 to facilitate the connection of the connecting pipe 1 to the outside in the future.

[0027] Specifically, the spring block mechanism 5 includes two sets of block connectors 501, and the two sets of block connectors 501 are connected by a support spring 502. The block connectors 501 are provided with a plate groove for use with the plate 601. The support spring 502 can connect the contact arc plate 3, and can also buffer the impact force on the contact arc plate 3 when it is impacted.

[0028] Specifically, an elastic locking mechanism 8 is installed on the outer side of the upper contact arc plate 3, and a locking slot 9 for cooperating with the elastic locking mechanism 8 is installed on the outer side of the lower contact arc plate 3. The elastic locking mechanism 8 includes a positioning block 801, and a moving slot is opened inside the positioning block 801. A first moving plate 802 is slidably disposed inside the moving slot. A locking block 803 is installed on one side of the first moving plate 802, and one end of the locking block 803 extends through to the outer side of the positioning block 801. The other side of the first moving plate 802 is connected to a second moving plate 805 through a driving block 804, and the second moving plate 805 is connected to the inner wall of the moving slot through a spring 806. One side of the driving block 804 is connected to a pull handle 808 through a driving rod 807. The positioning block 801 is provided with a movable through groove that works in conjunction with the drive rod 807. The elastic locking mechanism 8 and the locking groove 9 are provided to improve the integrity of the upper and lower contact arc plates 3. When the upper contact arc plate 3 and the lower contact arc plate 3 do not need to be connected, the handle 808 is pulled. The handle 808 drives the drive block 804 to move through the drive rod 807. The drive block 804 drives the second moving plate 805 to move, thereby compressing the spring 806 through the second moving plate 805. At the same time, the drive block 804 can drive the first moving plate 802 and the locking block 803 to move. When the locking block 803 is completely disengaged from the locking groove 9, the upper contact arc plate 3 and the lower contact arc plate 3 can be separated.

[0029] Specifically, the movable pallet mechanism 6 includes a pallet 601, and a fixing plate 602 is installed on the top of the pallet 601. A sleeve 603 is provided on the top of the fixing plate 602, and the sleeve 603 is connected to the lead screw mechanism 604. One end of the lead screw mechanism 604 is connected to the throttle 606 provided above the mounting plate 605.

[0030] In a further embodiment, a stabilizing plate 10 that is slidably connected to the sleeve 603 is installed on the inner side of the contact arc plate 3 and the outer side of the connecting pipe 1. By setting the stabilizing plate 10, the stability of the sleeve 603 when it moves can be improved.

[0031] When it is necessary to disassemble the contact arc plate 3, rotate the handle 606 on one side of the contact arc plate 3. Under the action of the handle 606, the lead screw mechanism 604 rotates, thereby driving the sleeve 603 and the clamping plate 601 to move. When the clamping plate 601 is no longer in contact with the spring clamping block mechanism 5, the contact arc plate 3 can be disassembled and replaced. When it is necessary to disassemble and replace the spring clamping block mechanism 5, rotate the handles 606 on both sides of the spring clamping block mechanism 5. When both clamping plates 601 are no longer in contact with the spring clamping block mechanism 5, the spring clamping block mechanism 5 can be disassembled.

[0032] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A packer for easy disassembly of a contact arc plate, comprising connecting pipes (1), wherein a sealing mechanism (2) is provided between two sets of said connecting pipes (1), characterized in that: Two sets of contact arc plates (3) are symmetrically arranged on the outer side of the two sets of connecting pipes (1), and slots (4) are installed on the inner side of the contact arc plates (3) and the outer side of the connecting pipes (1). The two sets of slots (4) are connected by a spring block mechanism (5), and a movable plate mechanism (6) that works in conjunction with the spring block mechanism (5) is installed on the inner side of the contact arc plates (3) and the outer side of the connecting pipes (1). The movable pallet mechanism (6) includes a pallet (601), and a fixing plate (602) is installed on the top of the pallet (601). A sleeve (603) is provided on the top of the fixing plate (602), and the sleeve (603) is connected to a lead screw mechanism (604). One end of the lead screw mechanism (604) is connected to a throttle (606) provided above the mounting plate (605).

2. The packer of claim 1, wherein: A connecting flange (7) is installed at the outer end of the connecting pipe (1).

3. The packer of claim 1, wherein: An elastic locking mechanism (8) is installed on the outer side of the contact arc plate (3) mentioned above, and a locking groove (9) that works in conjunction with the elastic locking mechanism (8) is installed on the outer side of the contact arc plate (3) below it.

4. The packer of claim 3, wherein: The elastic locking mechanism (8) includes a positioning block (801), and a moving groove is provided inside the positioning block (801). A first moving plate (802) is slidably disposed inside the moving groove. A locking block (803) is installed on one side of the first moving plate (802), and one end of the locking block (803) extends through to the outside of the positioning block (801). The other side of the first moving plate (802) is connected to a second moving plate (805) through a driving block (804), and the second moving plate (805) is connected to the inner wall of the moving groove through a spring (806). One side of the driving block (804) is connected to a pull handle (808) through a driving rod (807), and a moving through groove is provided on the positioning block (801) to cooperate with the driving rod (807).

5. The packer of claim 1, wherein: The spring-loaded locking mechanism (5) includes two sets of locking connectors (501), and the two sets of locking connectors (501) are connected by a support spring (502). The locking connectors (501) are provided with locking plate grooves that cooperate with the locking plate (601).

6. The packer of claim 1, wherein: A stabilizing plate (10) that is slidably connected to the sleeve (603) is installed on the inner side of the contact arc plate (3) and the outer side of the connecting pipe (1).

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