Coiled tubing blowout preventer

Abstract

The utility model discloses a coiled tubing blowout preventer, which relates to the technical field of well control equipment, and comprises a shell, a side plate, a rotating rod, a baffle plate, a hand buckling groove, a holding block and a connecting rod, the center of the connecting rod is also connected with a first fixing block, the first fixing block is positioned on the inner side of a first fixing groove, and the front side of the first fixing groove is provided with a first imbedding groove; a second fixing block is connected to the inner side of the connecting rod and located in the second fixing groove, and a second imbedding groove is formed in the front side of the second fixing groove. According to the utility model, the first fixing grooves and the second fixing grooves which are equivalently aligned are respectively arranged in the shell and the side plate and are matched with the first fixing blocks and the second fixing blocks for use; and the first fixing block and the second fixing block are clamped into the first fixing groove and the second fixing groove through rotation of the connecting rod in the using process, the shell and the side plate are fixed correspondingly, and the fixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of well control equipment, in particular to a coiled tubing blowout preventer. Background Art

[0002] Coiled tubing blowout preventers (BOPs) are an essential component of coiled tubing operations. After overflow, kick, or blowout, the BOP quickly shuts down the well and performs well-killing operations to prevent a blowout and re-establish pressure control in the oil and gas well. BOPs require regular maintenance after a period of operation, requiring periodic disassembly and installation of the side door.

[0003] An existing patent (Announcement No. CN216922070U) discloses a coiled tubing blowout preventer (BOP) whose housing and side doors are connected by a locking shaft, eliminating the need for side door bolts. This reduces the previous two-person operation to a single person, reducing the number of personnel by half, significantly saving labor costs, reducing labor intensity, and improving work efficiency. The absence of threaded holes reduces the difficulty of machining the housing and side doors, significantly lowering product costs. Furthermore, the locking shaft is much easier to machine than the side door bolts, resulting in a high yield rate for finished products. No special surface coating is required, reducing costs and shortening the processing cycle. The lack of specialized assembly and disassembly tools reduces the operator's skill requirements, avoids thread engagement and other anomalies caused by assembly bolts, and eliminates torque requirements, ensuring proper installation. During the implementation of this solution, the following problems were discovered in the prior art that have not been adequately addressed:

[0004] The device is connected through a locking shaft, but the locking shaft is directly exposed to the outside world and is easily affected by external factors. During use, the locking shaft only realizes protective connection through a single-layer structure, and the connection effect is limited, and it may fall off. Summary of the Invention

[0005] In order to improve the above-mentioned problem that the locking shaft is directly exposed to the outside and easily affected by external factors and is only connected by a single layer of protection, the utility model provides a coiled tubing blowout preventer.

[0006] The utility model provides a coiled tubing blowout preventer, which adopts the following technical solutions:

[0007] A coiled tubing blowout preventer comprises a housing, a side plate connected to the inner side of the housing, a rotating rod connected to the front side of the housing, a baffle connected to the outer side of the rotating rod, a hand grip groove provided below the baffle, a grip block connected to the inner side of the baffle, a connecting rod connected to the interior of the grip block, a first fixing block connected to the center of the connecting rod, the first fixing block being located inside a first fixing groove, and a first insertion groove being provided in the front side of the first fixing groove;

[0008] The inner side of the connecting rod is connected with a second fixing block, the second fixing block is located inside the second fixing groove, and the front side of the second fixing groove is provided with a second insertion groove.

[0009] Through the above technical solution, it is convenient to cooperate with the shell and the rotating rod so that the baffle can cover the grip block and its inner structure. Secondly, the first fixed block and the second fixed block are cooperated to connect and fix the side plate and the shell separately to ensure the fixing effect.

[0010] Optionally, in the above-mentioned coiled tubing blowout preventer, side plates are symmetrically distributed inside the shell, the shell and the side plates are connected by sliding connection, and a sealing unit is connected to the center of the side plate.

[0011] Through the above technical solution, it is convenient to cooperate with the shell and the side panels, so that the shell and the side panels cooperate to limit and fix the side panels, thereby ensuring that subsequent work can be carried out.

[0012] Optionally, in the above-mentioned coiled tubing blowout preventer, rotating rods are symmetrically distributed around the shell, the rotating rods are connected to the baffle in a rotating manner, and the shell and the rotating rods are connected in a fixed manner.

[0013] Through the above technical solution, it is convenient to utilize the rotating rod to cooperate with the baffle, so that the baffle can be movable, thereby achieving the purpose of protecting the grip block.

[0014] Optionally, in the above-mentioned coiled tubing blowout preventer, the center of the hand grip groove coincides with the center of the baffle, the hand grip groove has an arc-shaped structure, and the number of the hand grip grooves is consistent with the number of baffles.

[0015] Through the above technical solution, it is convenient to utilize the hand-grip groove to cooperate with the baffle, so that the baffle can be opened quickly when it needs to be opened.

[0016] Optionally, in the above-mentioned coiled tubing blowout preventer, the first fixing blocks are symmetrically distributed on both sides of the center of the connecting rod, the connection between the connecting rod and the shell is a sliding connection, and the second fixing blocks are symmetrically distributed on the bottom of the connecting rod.

[0017] Through the above technical solution, it is convenient to connect the first fixing block and the second fixing block through the connecting rod, which facilitates integrated disassembly and installation.

[0018] Optionally, in the above-mentioned coiled tubing blowout preventer, the first fixing grooves are evenly and equidistantly distributed on both sides of the center of the shell, the first fixing grooves are connected to the first fixing block in a sliding manner, and the first insertion grooves are symmetrically distributed on both sides of the first fixing groove.

[0019] Through the above technical solution, it is convenient to utilize the first fixing groove to cooperate with the first fixing block, so that the first fixing block can be connected and fixed to the side plate without the need for bolt fixation.

[0020] Optionally, in the aforementioned coiled tubing blowout preventer, the second insertion grooves are symmetrically distributed on both sides of the center of the second fixed groove, the second insertion grooves are connected to the second fixed block in a sliding manner, and the second fixed block is connected to the second fixed groove in a sliding manner.

[0021] Through the above technical solution, the second fixing block can be fixed by cooperating with the second insertion groove and the second fixing groove, thereby ensuring convenient use.

[0022] Optionally, in the above-mentioned coiled tubing blowout preventer, the center of the second fixed groove is above the same horizontal line as the center of the first fixed groove, the size of the second fixed groove is consistent with the size of the first fixed groove, and the second fixed grooves are evenly and equidistantly distributed around the center of the side plate.

[0023] Through the above technical solution, the second fixing groove cooperates with the first fixing groove to complete the fixing work, so that disassembly, fixing and installation can be carried out at the same time.

[0024] In summary, the present invention has at least one of the following beneficial effects:

[0025] By respectively providing a first fixing groove and a second fixing groove with equal positions inside the shell and the side plate, which cooperate with the first fixing block and the second fixing block respectively, the connecting rod can be rotated during use so that the first fixing block and the second fixing block are engaged with the inside of the first fixing groove and the second fixing groove, respectively fixing the shell and the side plate, thereby improving the fixing effect;

[0026] By providing a rotating rod and a baffle, the baffle can be lowered to cover the grip block after the fixing work is completed to prevent it from being affected by external factors. A hand groove is provided under the baffle so that the hand groove can be used to quickly disassemble the baffle, ensuring that the baffle can be quickly opened for adjustment during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the front view structure of the grip block of the utility model;

[0029] Figure 3 This is a schematic side view of the overall structure of the utility model;

[0030] Figure 4 This utility model Figure 3Enlarged structural diagram at point A in the middle.

[0031] In the figure: 1. Shell; 2. Side panel; 3. Baffle; 4. Rotating rod; 5. Hand grip groove; 6. Connecting rod; 7. First fixing block; 8. First fixing groove; 9. Grip block; 10. First insertion groove; 11. Second insertion groove; 12. Second fixing block; 13. Second fixing groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 The utility model is described in further detail.

[0033] Please refer to the attached figure in the instruction manual Figure 1-4 , the utility model provides an embodiment: a continuous tubing blowout preventer, including a shell 1, the inner side of the shell 1 is connected to a side plate 2, the front side of the shell 1 is also connected to a rotating rod 4, the outer side of the rotating rod 4 is connected to a baffle 3, a hand-grip groove 5 is provided below the baffle 3, the hand-grip groove 5 cooperates with the baffle 3 to quickly cover the grip block 9, the inner side of the baffle 3 is also connected to the grip block 9, the inside of the grip block 9 is also connected to a connecting rod 6, the connecting rod 6 is used to connect the first fixing block 7 and the second fixing block 12 to facilitate integrated adjustment, the center of the connecting rod 6 is also connected to a first fixing block 7, the first fixing block 7 is located on the inner side of the first fixing groove 8, and a first insertion groove 10 is opened on the front side of the first fixing groove 8, and the first fixing groove 8 cooperates with the first insertion groove 10 to quickly connect the first fixing block 7;

[0034] A second fixing block 12 is connected to the inner side of the connecting rod 6, and the side panel 2 is connected and fixed by the second fixing block 12 to ensure use. The second fixing block 12 is located inside the second fixing groove 13, and a second insertion groove 11 is opened on the front side of the second fixing groove 13. The second insertion groove 11 is used to fix the second fixing block 12 for easy disassembly.

[0035] Working principle: During use, first, during use, if it is necessary to disassemble the shell 1, place your hand into the hand groove 5 so that your fingers enter the inside of the baffle 3, and then push the baffle 3 toward the outside, so that the baffle 3 and the rotating rod 4 rotate, thereby moving toward the outside, revealing the grip block 9, and then grab the grip block 9 and rotate it 90°, so that it drives the first fixed block 7 to rotate through the connecting rod 6 until the first fixed block 7 coincides with the first insertion groove 10, and then pull the connecting rod 6 toward the outside, so that the first fixed block 7 slides inside the first insertion groove 10 until it slides out of the shell 1, thereby releasing the fixing work of the shell 1.

[0036] As described above, when the connecting rod 6 drives the first fixing block 7 to rotate, it also drives the second fixing block 12 to rotate inside the second fixing groove 13. Later, during the disassembly of the connecting rod 6, the second fixing block 12 is also inside the second insertion groove 11 and will be disassembled together with the connecting rod 6, thereby releasing the fixation between the shell 1 and the side panel 2.

[0037] It should be noted that the shell 1 has symmetrically distributed side panels 2 inside, and the shell 1 and the side panels 2 are connected by sliding connection. The center of the side panel 2 is connected with a sealing unit, and the shell 1 and the side panel 2 cooperate to limit and fix the side panel 2 to ensure that subsequent work can be carried out.

[0038] It should be noted that there are rotating rods 4 symmetrically distributed around the shell 1. The connection between the rotating rods 4 and the baffle 3 is a rotating connection, and the connection between the shell 1 and the rotating rods 4 is a fixed connection. The rotating rods 4 cooperate with the baffle 3 so that the baffle 3 can move, thereby achieving the purpose of protecting the grip block 9.

[0039] It should be noted that the center of the hand latch groove 5 coincides with the center of the baffle 3, the hand latch groove 5 has an arc-shaped structure, and the number of the hand latch grooves 5 is consistent with the number of the baffles 3. The hand latch groove 5 cooperates with the baffle 3 so that the baffle 3 can be opened quickly when it needs to be opened.

[0040] It should be noted that the first fixed blocks 7 are symmetrically distributed on both sides of the center of the connecting rod 6. The connection between the connecting rod 6 and the shell 1 is a sliding connection. The second fixed blocks 12 are symmetrically distributed at the bottom of the connecting rod 6. The first fixed block 7 and the second fixed block 12 are connected by the connecting rod 6 to facilitate integrated disassembly and installation.

[0041] It should be noted that the first fixing grooves 8 are evenly and equidistantly distributed on both sides of the center of the shell 1. The connection between the first fixing grooves 8 and the first fixing block 7 is a sliding connection. The first insertion grooves 10 are symmetrically distributed on both sides of the first fixing groove 8. The first fixing grooves 8 cooperate with the first fixing block 7 so that the first fixing block 7 can be connected and fixed to the side panel 2 without the need for bolts.

[0042] It should be noted that the second insertion grooves 11 are symmetrically distributed on both sides of the center of the second fixing groove 13. The second insertion grooves 11 are connected to the second fixing block 12 in a sliding manner. The second fixing block 12 is connected to the second fixing groove 13 in a sliding manner. The second insertion grooves 11 cooperate with the second fixing grooves 13 to fix the second fixing block 12, ensuring ease of use.

[0043] It should be noted that the center of the second fixing groove 13 and the center of the first fixing groove 8 are above the same horizontal line, the size of the second fixing groove 13 is consistent with the size of the first fixing groove 8, and the second fixing grooves 13 are evenly and equidistantly distributed around the center of the side panel 2. The second fixing groove 13 cooperates with the first fixing groove 8 to complete the fixing work, so that disassembly, fixing and installation can be carried out at the same time.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coiled tubing blowout preventer, comprising a housing (1), characterized in that: The inner side of the shell (1) is connected to a side plate (2), the front side of the shell (1) is also connected to a rotating rod (4), the outer side of the rotating rod (4) is connected to a baffle (3), a hand-gripping groove (5) is provided below the baffle (3), the inner side of the baffle (3) is also connected to a grip block (9), the interior of the grip block (9) is also connected to a connecting rod (6), the center of the connecting rod (6) is also connected to a first fixing block (7), the first fixing block (7) is located on the inner side of the first fixing groove (8), and a first insertion groove (10) is provided on the front side of the first fixing groove (8); The inner side of the connecting rod (6) is connected to a second fixing block (12), the second fixing block (12) is located inside the second fixing slot (13), and a second insertion slot (11) is provided on the front side of the second fixing slot (13).

2. The coiled tubing blowout preventer according to claim 1, characterized in that: Side plates (2) are symmetrically distributed inside the shell (1), the shell (1) and the side plates (2) are connected in a sliding manner, and a sealing unit is connected to the center of the side plates (2).

3. The coiled tubing blowout preventer according to claim 1, characterized in that: Rotating rods (4) are symmetrically distributed around the shell (1); the rotating rods (4) are connected to the baffle (3) in a rotating manner; and the shell (1) and the rotating rods (4) are connected in a fixed manner.

4. The coiled tubing blowout preventer according to claim 1, characterized in that: The center of the hand-gripping groove (5) coincides with the center of the baffle (3); the hand-gripping groove (5) is an arc-shaped structure; and the number of the hand-gripping grooves (5) is consistent with the number of the baffles (3).

5. The coiled tubing blowout preventer according to claim 1, characterized in that: The first fixing blocks (7) are symmetrically distributed on both sides of the center of the connecting rod (6); the connecting rod (6) and the housing (1) are connected in a sliding manner; and second fixing blocks (12) are symmetrically distributed at the bottom of the connecting rod (6).

6. The coiled tubing blowout preventer according to claim 1, characterized in that: The first fixing grooves (8) are evenly and equidistantly distributed on both sides of the center of the housing (1); the first fixing grooves (8) are connected to the first fixing block (7) in a sliding manner; and first insertion grooves (10) are symmetrically distributed on both sides of the first fixing groove (8).

7. The coiled tubing blowout preventer according to claim 1, characterized in that: The second insertion grooves (11) are symmetrically distributed on both sides of the center of the second fixing groove (13); the second insertion groove (11) is connected to the second fixing block (12) in a sliding manner; and the second fixing block (12) is connected to the second fixing groove (13) in a sliding manner.

8. The coiled tubing blowout preventer according to claim 1, characterized in that: The center of the second fixing groove (13) is above the same horizontal line as the center of the first fixing groove (8), the size of the second fixing groove (13) is consistent with the size of the first fixing groove (8), and the second fixing grooves (13) are evenly and equidistantly distributed around the center of the side plate (2).

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