Safety connection device of perforator for oil and gas well coiled tubing based on lever principle

Abstract

The utility model relates to connecting device, concretely relates to the safety connecting device of oil and gas well coiled tubing gun perforating device based on lever principle, solves the problem that the existing manual connection perforating gun exists low operation efficiency, and still can make the perforating gun's core piece knock, sealing element damage or personnel injury. The utility model through the hinged frame and lever plate simple lever is formed, sets up the support structure in the position of lever plate near one end, it includes movable ring and support seat, realizes the position adjustment of support seat through the first hinged axle and second hinged axle of axis each other perpendicular, and then when the perforating gun threaded connection, the rotation adjustment perforating gun position through the support seat, realizes the thread alignment, the staff provides the support for the perforating gun through treading lever plate not setting up the one end of support structure, can carry out the thread alignment in the case of having the support, need not worry about the perforating gun damage or personnel injury caused by dropping, and one person can complete the thread butt joint, and the efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to a connecting device, specifically a safety connecting device for a perforator in coiled tubing for oil and gas wells based on the lever principle. Background Technology

[0002] Currently, horizontal well drilling is more difficult in oil and gas well drilling, especially the perforation stage before formal production. The equipment used is very large, and the requirements for operational efficiency and safety are very high.

[0003] Before the perforating gun 03 is lowered into the well, the coiled tubing 02 and the blowout preventer must first be assembled, such as... Figure 1 As shown, the coiled tubing 02 passes through the sealing head of the blowout preventer (BOP) and enters the BOP pipe 01 of the BOP. It is then lifted vertically by a crane. Perforating guns 03 are then connected to the coiled tubing 02. Perforating guns 03 typically consist of multiple sections. The general procedure involves a worker connecting one section of perforating gun 03 to the coiled tubing 02 via threads. The crane then lifts the coiled tubing 02 and BOP pipe 01, and the next section of perforating gun 03 is connected to the previous section via threads, until all perforating guns 03 are connected. However, the connection of the perforating guns 03 is always performed while suspended in the air. Workers must lift the perforating guns 03 to align the threads, resulting in low efficiency. Furthermore, if the worker loses control, there is a risk of damage to the perforating gun's core components, seals, or even injury to personnel. Utility Model Content

[0004] To address the technical problems of low operational efficiency and potential damage to the perforating gun's core components, seals, or personnel caused by manual connection of the perforating gun, this invention provides a safe connection device for perforators in oil and gas well coiled tubing based on the lever principle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle, characterized by: Includes hinged frame, lever plate and supporting structure; The lever plate is hinged to the hinge frame at its middle position; The lever plate has a through hole near one end, and the supporting structure is disposed in the through hole, which includes a movable ring and a supporting seat. The movable ring is coaxially disposed within the through hole, and the outer wall of the movable ring is hinged to the inner wall of the through hole via two opposing first hinge shafts; the support seat is coaxially disposed within the movable ring, and the outer wall of the support seat is hinged to the inner wall of the movable ring via two opposing second hinge shafts. The axes of the two first hinge axes are perpendicular to the axes of the two second hinge axes.

[0006] Furthermore, the support is a hemispherical shell structure with its opening facing upwards.

[0007] Furthermore, the support seat is provided with a shock-absorbing pad, which is made of rubber, polytetrafluoroethylene or nylon.

[0008] Furthermore, the lever plate has an anti-slip patterned plate at the other end where the supporting structure is provided.

[0009] Furthermore, the hinge frame includes a base frame and a hinge shaft; The base frame includes two oppositely arranged connecting ears and a base disposed between the two connecting ears; The hinge shaft is located between the two connecting lugs, and the middle part of the lever plate is hinged to the hinge shaft.

[0010] Furthermore, it also includes a counterweight; the counterweight is used to be placed on the anti-slip patterned plate and is fixedly connected by a fixing pin set on the anti-slip patterned plate.

[0011] The beneficial effects of this utility model are: (1) The safety connection device for perforators in coiled tubing of oil and gas wells based on the lever principle provided by this utility model is a simple lever composed of a hinge frame and a lever plate. A support structure is provided near one end of the lever plate. The support structure includes a movable ring and a support seat. The position of the support seat can be adjusted by the first hinge shaft and the second hinge shaft with their axes perpendicular to each other. Then, when the perforating gun is threaded, the position of the perforating gun is adjusted by the rotation of the support seat to achieve thread alignment. The worker can step on the end of the lever plate without the support structure so that the support structure provides support for the perforating gun. The thread alignment can be performed with support, without worrying about the perforating gun being damaged or the person being injured. One person can complete the thread connection, which improves efficiency.

[0012] (2) The safety connection device for perforator of oil and gas well coiled tubing based on the lever principle provided by this utility model has a shock-absorbing pad in the support seat, which can prevent damage to the end of the perforator.

[0013] (3) The safety connection device for perforator of oil and gas well coiled tubing based on the lever principle provided by this utility model is equipped with anti-slip patterned plate, which can prevent slippage when workers step on it.

[0014] (4) The safety connection device for perforator of oil and gas well coiled tubing based on the lever principle provided by this utility model has a counterweight on the anti-slip patterned plate, and the counterweight is fixed by the fixing pin on the anti-slip patterned plate. In this way, the operator can provide support for the perforator without stepping on the lever plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection between coiled tubing, blowout preventer and perforation gun in the prior art; Figure 2 This is a schematic diagram of the structure of an embodiment of the safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle of this utility model; Figure 3 This is a schematic diagram of the support structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the connection between the hinge frame and the lever plate in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of this utility model in use.

[0016] The attached figures are labeled as follows: 01-Blowout preventer, 02-Continuous tubing, 03-Perforation gun; 1-Hinged frame, 11-Base frame, 111-Connecting ear, 112-Base, 12-Hinged shaft; 2-Lever plate, 3-Supporting structure, 31-Moving ring, 32-Support seat, 33-First hinged shaft, 34-Second hinged shaft; 4-Anti-slip patterned plate, 5-Counterweight block. Detailed Implementation

[0017] Reference Figures 2-5 The present invention provides a safety connection device for a perforator for coiled tubing in oil and gas wells based on the lever principle, comprising a hinge frame 1, a lever plate 2, and a support structure 3.

[0018] The lever plate 2 is hinged to the hinge frame 1 at its middle position, such as... Figure 4 As shown, the hinge frame 1 includes a base frame 11 and a hinge shaft 12. The base frame 11 includes two oppositely arranged connecting ears 111 and a base 112 disposed between the two connecting ears 111. The hinge shaft 12 is disposed between the two connecting ears 111, and the middle position of the lever plate 2 is hinged to the hinge shaft 12. The lever plate 2 and the hinge frame 1 form a simple lever.

[0019] A through hole is provided near one end of the lever plate 2, and a supporting structure 3 is disposed in the through hole. The structure of the supporting structure 3 is as follows: Figure 3 As shown, the device includes a movable ring 31 and a support 32. The movable ring 31 is coaxially disposed within the through hole, and the outer wall of the movable ring 31 is hinged to the inner wall of the through hole by two opposing first hinge shafts 33. The support 32 is coaxially disposed within the movable ring 31, and the outer wall of the support 32 is hinged to the inner wall of the movable ring 31 by two opposing second hinge shafts 34, with the axes of the two first hinge shafts 33 and the axes of the two second hinge shafts 34 perpendicular to each other.

[0020] The support 32 is a hemispherical shell structure with its opening facing upward. The support 32 is used to place the perforating gun 03. In order to prevent damage to the end face of the perforating gun 03, a shock-absorbing pad is provided inside the support 32. The shock-absorbing pad is made of rubber, polytetrafluoroethylene or nylon. Its hardness is lower than that of the metal perforating gun 03, so it will not cause damage to it.

[0021] When in use, the operator needs to step on the other end of the lever plate 2 where the support structure 3 is located to support the perforating gun 03 using the lever principle. To prevent slippage, an anti-slip patterned plate 4 is provided on the other end of the lever plate 2 where the support structure 3 is located.

[0022] If you don't want to step on it, there is a counterweight 5. The counterweight 5 can be placed on the anti-slip patterned plate 4. In order to prevent the counterweight 5 from slipping, a fixing pin is provided on the anti-slip patterned plate 4. The counterweight 5 is fixedly connected by the fixing pin provided on the anti-slip patterned plate 4.

[0023] In use, place the section of the perforating gun 03 that needs to be connected onto the support 32. Then, the operator steps on the anti-slip patterned plate 4 or places the counterweight 5 on the anti-slip patterned plate 4 to lift the section of the perforating gun 03. The position of the perforating gun 03 is adjusted by rotating the support 32 to achieve thread alignment. Then, the perforating gun 03 is rotated to achieve thread connection.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A safety connection device for a perforator in coiled tubing for oil and gas wells based on the lever principle, characterized in that: It includes a hinge frame (1), a lever plate (2), and a supporting structure (3); The lever plate (2) is hinged to the hinge frame (1) at its middle position; The lever plate (2) has a through hole near one end, and the supporting structure (3) is disposed in the through hole, which includes a movable ring (31) and a supporting seat (32). The movable ring (31) is coaxially disposed inside the through hole, and the outer wall of the movable ring (31) is hinged to the inner wall of the through hole by two oppositely disposed first hinge shafts (33); the support seat (32) is coaxially disposed inside the movable ring (31), and the outer wall of the support seat (32) is hinged to the inner wall of the movable ring (31) by two oppositely disposed second hinge shafts (34); The axes of the two first hinge axes (33) are perpendicular to the axes of the two second hinge axes (34).

2. The safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle according to claim 1, characterized in that: The support (32) is a hemispherical shell structure with its opening facing upwards.

3. The safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle according to claim 2, characterized in that: The support (32) is provided with a shock-absorbing pad inside, which is made of rubber, polytetrafluoroethylene or nylon.

4. The safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle according to claim 1, characterized in that: The lever plate (2) has an anti-slip patterned plate (4) at the other end where the supporting structure (3) is provided.

5. The safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle according to claim 1, characterized in that: The hinge frame (1) includes a base frame (11) and a hinge shaft (12). The base frame (11) includes two oppositely arranged connecting ears (111) and a base (112) disposed between the two connecting ears (111). The hinge shaft (12) is located between the two connecting ears (111), and the middle position of the lever plate (2) is hinged to the hinge shaft (12).

6. The safety connection device for perforators in coiled tubing for oil and gas wells based on the lever principle according to claim 4, characterized in that: It also includes counterweights (5); The counterweight (5) is placed on the anti-slip patterned plate (4) and fixedly connected by a fixing pin set on the anti-slip patterned plate (4).

Images