Mistaken buckling prevention device suitable for casing pipe

Abstract

The utility model discloses a device suitable for preventing the wrong buckling of casing pipe relates to casing pipe installation technical field, including lower bottom frame and upper connecting frame, the upper side of lower bottom frame outer wall is provided with the slot, the lower side of upper connecting frame outer wall is fixedly connected with the plug block, the outer wall of slot is rotatingly connected with the rotating plate in the circumference arrangement, and the rotating plate is connected with the plug block. The side, close to the inserting groove, of the rotating plate is fixedly connected with a fixing clamping block, preliminary butt joint between the lower bottom frame and the upper connecting frame is achieved through inserting connection of the inserting block and the inserting groove, after the upper connecting frame continues to drive the inserting block to slide downwards, the fixing clamping block can clamp an annular clamping strip, and the annular clamping strip is clamped by the fixing clamping block. The inserting depth of the inserting block in the inserting groove can be limited through the limiting block, so that after the annular clamping strip is clamped by the fixing clamping block, the position between the upper connecting frame and the lower bottom frame is fixed, and the axial position between the first sleeve and the second sleeve is locked; abrasion of threads in the two sleeves caused by axial deviation when the two sleeves are connected is prevented, and the sealing performance of the joint of the two sleeves is kept.

Description

Technical Field

[0001] This utility model relates to the field of sleeve installation technology, and in particular to a sleeve anti-misalignment device. Background Technology

[0002] Oil well casing is a steel pipe used to support the wellbore of oil and gas wells, ensuring the smooth operation of the well during drilling and after completion. Each well requires several layers of casing depending on the drilling depth and geological conditions. After the casing is run into the well, it is cemented. Unlike tubing and drill pipe, it is not reusable and is a disposable material. Oil well casing primarily supports the wellbore during drilling and after completion, ensuring the smooth operation of the well. The sucker tubing mainly transports oil and gas from the bottom of the well to the surface, so the connections between casing sections must maintain a certain level of airtightness.

[0003] Since the installation of oil casing is inside the oil well, the axial position of the upper and lower casings may shift due to external factors such as insufficient centering of the drilling rig wellhead and wind when the drilling team runs the casing. This can easily lead to mis-threading of the casings during installation. In this case, the casings need to be disassembled and reinstalled. However, repeated installation and disassembly can easily damage the threads at the connection between the two casings, resulting in a decrease in the sealing between the upper and lower casings.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sleeve anti-misalignment device, which solves the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sleeve anti-misalignment device, comprising a lower base frame and an upper connecting frame, wherein a slot is provided on the upper side of the outer wall of the lower base frame, a plug block is fixedly connected to the lower side of the outer wall of the upper connecting frame, a rotating plate is rotatably connected to the outer wall of the slot in a circumferential arrangement, a fixing block is fixedly connected to the side of the rotating plate near the slot, an annular locking strip is fixedly connected to the side wall of the plug block, a first sleeve is fixedly installed at the lower end of the outer wall of the lower base frame, and a second sleeve is slidably disposed on the outer wall of the upper connecting frame.

[0007] As a further technical solution of this utility model, a mounting ring is fixedly connected to the side wall of the lower frame, and mounting grooves are arranged circumferentially on the upper side of the outer wall of the mounting ring. A rotating block one is rotatably connected to the inner wall of the mounting groove, and a connecting seat is fixedly installed below the outer wall of the rotating plate. A rotating block two is rotatably connected inside the connecting seat, and a spring is fixedly connected between the rotating block two and the rotating block one.

[0008] As a further technical solution of this utility model, a limiting block is fixedly installed on the inner side wall of the slot near the rotating plate.

[0009] As a further technical solution of this utility model, an external threaded connector is fixedly installed at the lower end of the inner wall of the lower bottom frame, and an internal thread is provided at the lower end of the inner wall of the second sleeve, and the internal thread is threadedly connected to the external threaded connector.

[0010] As a further technical solution of this utility model, the outer side wall of the second sleeve is provided with T-shaped sliding grooves arranged in a circular pattern, and the inner side wall of the upper connecting frame is fixedly installed with T-shaped sliders arranged in a circular pattern, and the T-shaped sliders are slidably connected to the T-shaped sliding grooves.

[0011] As a further technical solution of this utility model, a limit ring is fixedly installed on the inner side wall of the slot away from the rotating plate.

[0012] This utility model provides a sleeve anti-misalignment device, which has the following advantages compared with the prior art.

[0013] Beneficial effects:

[0014] 1. This utility model achieves initial docking between the lower bottom frame and the upper connecting frame through the insertion of the plug and the slot. When the upper connecting frame continues to drive the plug to slide downward, the fixing block will lock the annular locking strip. The limiting block can limit the insertion depth of the plug in the slot. Thus, after the fixing block locks the annular locking strip, the position between the upper connecting frame and the lower bottom frame is fixed, and the axial position between sleeve one and sleeve two is locked to prevent the internal threads from being worn due to axial displacement when the two sleeves are connected, thus maintaining the sealing performance of the connection between the two sleeves.

[0015] 2. When using this utility model, the installer rotates the upper connecting frame by rotating the second sleeve. At the same time, the second sleeve and the upper connecting frame slide relative to each other, causing the internal thread and the external thread to rotate. The threaded connection between the internal thread and the external thread connector can fix the first sleeve and the second sleeve, improving the convenience of using the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an enlarged view of the structure at point A of this utility model;

[0019] Figure 4 This is a schematic diagram of the upper connecting frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second sleeve of this utility model.

[0021] In the diagram: 1. Sleeve 1; 2. Sleeve 2; 100. Lower base frame; 110. Slot; 200. Upper connecting frame; 210. Insertion block; 300. Rotating plate; 310. Fixing block; 320. Annular retaining strip; 400. External thread connector; 410. T-shaped slide; 420. T-shaped slider; 430. Internal thread; 500. Mounting ring; 510. Mounting groove; 520. Rotating block 1; 530. Connecting seat; 540. Rotating block 2; 550. Spring; 600. Limiting block; 610. Limiting ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides a technical solution for a sleeve anti-misalignment device: A sleeve anti-misalignment device includes a lower base frame 100 and an upper connecting frame 200. A slot 110 is provided on the upper side of the outer wall of the lower base frame 100. A plug-in block 210 is fixedly connected to the lower side of the outer wall of the upper connecting frame 200. A rotating plate 300 is rotatably connected to the outer wall of the slot 110 in a circumferential arrangement. A fixing block 310 is fixedly connected to the side of the rotating plate 300 near the slot 110. An annular locking strip is fixedly connected to the side wall of the plug-in block 210. 320, a sleeve 1 is fixedly installed on the lower end of the outer wall of the lower bottom frame 100, and a sleeve 2 is slidably installed on the outer wall of the upper connecting frame 200. Before the device connects the sleeve 1 and the sleeve 2, it first achieves the initial connection between the lower bottom frame 100 and the upper connecting frame 200 by inserting the plug 210 and the slot 110. When the upper connecting frame 200 continues to drive the plug 210 to slide downward, the annular retaining strip 320 on the plug 210 will contact and squeeze the retaining block 310, causing the rotating plate 300 to rotate. A mounting ring 500 is fixedly connected to the side wall of the bottom frame 100. The mounting ring 500 has mounting grooves 510 arranged in a circular pattern on the upper side of its outer wall. A rotating block 520 is rotatably connected to the inner wall of the mounting groove 510. A connecting seat 530 is fixedly installed on the lower part of the outer wall of the rotating plate 300. A rotating block 540 is rotatably connected inside the connecting seat 530. A spring 550 is fixedly connected between the rotating block 540 and the rotating block 520. When the annular locking strip 320 moves to the bottom of the fixed locking block 310, the rotating plate 300 will be pulled to rotate under the action of the spring 550, so that the fixed locking block 310 locks the annular locking strip 320. A limiting block 600 is fixedly installed on the inner wall of the slot 110 near the rotating plate 300. The limiting block 600 can limit the rotation position of the upper end of the rotating plate 300. A limiting ring 610 is fixedly installed on the inner wall of the slot 110 away from the rotating plate 300. The limiting block 600 can limit the insertion depth of the plug-in block 210 in the slot 110. Thus, after the fixing block 310 locks the annular locking strip 320, the position between the upper frame 200 and the lower bottom frame 100 is fixed, and the axial position between the sleeve 1 and the sleeve 2 is locked.

[0024] like Figure 1 , Figure 2 and Figure 5As shown, an external threaded connector 400 is fixedly installed on the lower end of the inner wall of the lower frame 100, and an internal thread 430 is provided on the lower end of the inner wall of the second sleeve 2. The internal thread 430 is threadedly connected to the external threaded connector 400. The threaded connection between the internal thread 430 and the external threaded connector 400 can realize the fixation of the first sleeve 1 and the second sleeve 2. T-shaped grooves 410 are arranged in a circular pattern on the outer wall of the second sleeve 2. T-shaped sliders 420 are fixedly installed in a circular pattern on the inner wall of the upper frame 200. The T-shaped sliders 420 are slidably connected to the T-shaped grooves 410. When the second sleeve 2 rotates, the second sleeve 2 will drive the upper frame 200 to rotate, and at the same time, the second sleeve 2 will slide relative to the upper frame 200.

[0025] The working principle of this utility model is as follows: During use, when it is necessary to install and connect sleeve 2 and sleeve 1, personnel hoist sleeve 2, which is equipped with the upper connecting frame 200, so that the initial connection between the lower bottom frame 100 and the upper connecting frame 200 is achieved through the insertion of the plug block 210 and the slot 110. When the upper connecting frame 200 continues to drive the plug block 210 to slide downwards, the annular retaining strip 320 on the plug block 210 will contact and press against the fixing block 310, causing the rotating plate 300 to rotate. When the annular retaining strip 320 moves below the fixing block 310, it will pull the rotating plate 300 to rotate under the action of the spring 550, causing the fixing block... Block 310 locks the annular retaining strip 320. The limiting block 600 can limit the insertion depth of the plug-in block 210 in the slot 110. After the retaining block 310 locks the annular retaining strip 320, the position between the upper frame 200 and the lower frame 100 is fixed, and the axial position between sleeve 1 and sleeve 2 is locked. Then, the operator rotates sleeve 2. When sleeve 2 rotates, it will drive the upper frame 200 to rotate. At the same time, sleeve 2 will slide relative to the upper frame 200. The screw connection between the internal thread 430 and the external thread connector 400 can realize the fixation of sleeve 1 and sleeve 2.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A casing make-up error proofing device comprising a lower base frame (100) and an upper adapter frame (200), characterized in that: The lower bottom frame (100) has a slot (110) on the upper side of its outer wall. The upper connecting frame (200) has a plug block (210) fixedly connected to the lower side of its outer wall. The slot (110) has a rotating plate (300) rotatably connected to its outer wall in a circular arrangement. The rotating plate (300) has a fixed card block (310) fixedly connected to the side of its side closest to the slot (110). The plug block (210) has an annular card strip (320) fixedly connected to its side wall. The lower end of the lower bottom frame (100) has a sleeve one (1) fixedly installed. The upper connecting frame (200) has a sleeve two (2) slidably installed on its outer wall.

2. A device for preventing mis-threading of a sleeve according to claim 1, wherein A mounting ring (500) is fixedly connected to the side wall of the lower frame (100). The mounting ring (500) has mounting grooves (510) arranged in a circular pattern on the upper side of its outer wall. A rotating block (520) is rotatably connected to the inner wall of the mounting groove (510). A connecting seat (530) is fixedly installed on the lower side of the outer wall of the rotating plate (300). A rotating block (540) is rotatably connected inside the connecting seat (530). A spring (550) is fixedly connected between the rotating block (540) and the rotating block (520).

3. A device for preventing mis-threading of a sleeve according to claim 1, wherein A limiting block (600) is fixedly installed in the slot (110) near the inner wall of the rotating plate (300).

4. A device for preventing mis-threading of a sleeve according to claim 1, wherein An external threaded connector (400) is fixedly installed on the lower end of the inner wall of the lower bottom frame (100), and an internal thread (430) is provided on the lower end of the inner wall of the sleeve (2), and the internal thread (430) is threadedly connected to the external threaded connector (400).

5. A sleeve anti-misalignment device according to claim 1, characterized in that, The outer wall of the sleeve 2 (2) is provided with T-shaped grooves (410) arranged in a circular pattern, and the inner wall of the upper frame (200) is fixedly installed with T-shaped sliders (420) arranged in a circular pattern. The T-shaped sliders (420) are slidably connected to the T-shaped grooves (410).

6. A device for preventing mis-threading of a sleeve according to claim 1, wherein A limit ring (610) is fixedly installed on the inner side wall of the slot (110) away from the rotating plate (300).

Images