Rapid connection tool for oil exploitation wellhead

Abstract

The utility model discloses an oil exploitation well mouth fast connecting tool which comprises a well mouth and a conveying pipe, the top end of the well mouth is connected with a sealing piece, the upper surface of the well mouth is provided with a square base plate, the upper surface of the square base plate is provided with two square grooves, the interior of each square groove is rotationally connected with a lead screw through a bearing, and the lead screw is connected with a nut through a nut. The outer surface of each square base plate is provided with a driving motor through a rack, the output end of each driving motor is connected with one end of a lead screw, and the outer surface of each lead screw is in threaded connection with a threaded plate. According to the device, the driving motor drives the lead screw to rotate, the screw plate moves on the lead screw in a threaded mode, then the square plate and the inserting plate are driven to move, the inserting plate is inserted into a hole of the perforated plate, fixing of the conveying pipe and the well mouth is achieved, and through power driving of the driving motor, compared with a traditional manual connecting mode, the connecting time of the well mouth and the conveying pipe is greatly shortened; and the efficiency of oil exploitation operation is improved, and the stability of connection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment, and in particular to a quick connection tool for oil extraction wellheads. Background Technology

[0002] Oil extraction refers to the act of digging and extracting oil from places where oil is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom of the well to the wellhead. During the extraction process, a stable and reliable connection is used between the oil and gas pipelines and the extraction equipment to adapt to the complex wellhead environment and frequent operation requirements. In order to achieve fast, efficient and safe connection of various wellhead pipelines and equipment and significantly improve the efficiency of oil extraction operations, connection tools are used.

[0003] In oil extraction, wellhead connection is a critical and frequent operation, requiring reliable connection between the wellhead and oil pipelines, valves, and monitoring equipment. However, existing wellhead connection methods have many shortcomings, seriously affecting the progress and safety of oil extraction operations. Traditional methods of connecting oil extraction wellheads to pipelines often rely on a lot of manual operation, using bolt tightening or welding. Welding connections require specialized welding equipment and technicians, and the weld seam needs to cool down after welding, making the entire connection process time-consuming. For example, in emergency situations requiring rapid replacement of wellhead equipment, traditional connection methods cannot meet the demand for rapid connection, leading to prolonged interruptions in extraction operations. To address these issues, we propose a rapid wellhead connection tool for oil extraction. Utility Model Content

[0004] The purpose of this invention is to provide a quick connection tool for oil wellheads to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick connection tool for oil wellheads includes a wellhead and a delivery pipe. A sealing element is connected to the top of the wellhead. A square pad is installed on the upper surface of the wellhead. Two square grooves are formed on the upper surface of the square pad. A lead screw is rotatably connected to the interior of each square groove via a bearing. A drive motor is mounted on the outer surface of each square pad via a frame. The output end of each drive motor is connected to one end of the lead screw. A screw plate is threaded onto the outer surface of each lead screw. A square plate is connected to the top of each screw plate. Two insert plates are connected to one side of each square plate. A connecting ring and multiple perforated plates are connected to the outer surface of the delivery pipe. A guide element is installed on the upper surface of the square pad.

[0007] In a further embodiment, the seal includes a main rubber sealing gasket connected to a square gasket, a metal gasket connected to the top of the main rubber sealing gasket, a secondary rubber sealing gasket connected to the upper surface of the metal gasket, and a connector strip connected to the top of the secondary rubber sealing gasket.

[0008] In a further embodiment, the bottom surface of the connecting ring is provided with a groove, and the groove is adapted to the size of the plug strip, and a sealing ring is connected to the bottom surface of the connecting ring.

[0009] In a further embodiment, the guide includes a plurality of strip grooves formed on the upper surface of the square pad, each strip groove having a sliding rod slidably connected inside, and the top end of each sliding rod being connected to the outer surface of the screw plate.

[0010] In a further embodiment, an arc-shaped stop block is connected to one side of each of the square plates, and the arc-shaped stop block is located below the insert plate.

[0011] In a further embodiment, the bottom surface of the delivery pipe is connected to two round inserts, and the inner wall of the wellhead is connected to two positioning rings that are adapted to the round inserts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a drive motor to rotate a lead screw, causing a screw plate to move along the threaded screw, which in turn moves a square plate and an insert plate. Driven by the motor, this significantly reduces the connection time between the wellhead and the delivery pipe compared to traditional manual connection methods, improving the efficiency of oil extraction operations. The insert plate is inserted into the hole of the perforated plate to fix the delivery pipe to the wellhead. Simultaneously, the round insert rod on the bottom of the delivery pipe matches the positioning ring on the inner wall of the wellhead, positioning and fixing the delivery pipe to prevent shaking or displacement after connection, ensuring the stability of the connection and guaranteeing the safety and reliability of the oil transportation process. Compared to traditional manual connection methods, this device greatly reduces the connection time between the wellhead and the delivery pipe, decreases the time spent on manual operation, and improves the efficiency of oil extraction operations. Attached Figure Description

[0014] Figure 1 A frontal three-dimensional schematic diagram of a quick-connect tool for oil wellheads.

[0015] Figure 2 This is a schematic diagram illustrating the separation of the wellhead and the delivery pipe in a quick-connect tool for oil wellhead extraction.

[0016] Figure 3 This is a bottom view of the delivery pipe structure in a quick connection tool for oil wellheads.

[0017] Figure 4This is a top view of the wellhead in a quick connection tool for oil wellheads.

[0018] Figure 5 This is a schematic diagram of the sealing component in a quick-connect tool for oil wellheads.

[0019] In the diagram: 1. Wellhead; 2. Square gasket; 3. Sealing element; 301. Main rubber sealing gasket; 302. Metal gasket; 303. Secondary rubber sealing gasket; 304. Insert strip; 4. Delivery pipe; 5. Connecting ring; 6. Perforated plate; 7. Groove; 8. Sealing ring; 9. Guide element; 901. Strip groove; 902. Sliding rod; 10. Drive motor; 11. Square groove; 12. Lead screw; 13. Threaded plate; 14. Square plate; 15. Insert plate; 16. Positioning ring; 17. Round insert rod; 18. Arc stop block. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[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. 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.

[0023] Please see Figures 1-5 This utility model discloses a quick connection tool for oil wellheads, comprising a wellhead 1 and a delivery pipe 4. A square pad 2 is installed on the upper surface of the wellhead 1. Two square grooves 11 are formed on the upper surface of the square pad 2. A lead screw 12 is rotatably connected to the interior of each square groove 11 via a bearing. A drive motor 10 is mounted on the outer surface of each square pad 2 via a frame. The output end of each drive motor 10 is connected to one end of the lead screw 12. A screw plate 13 is threadedly connected to the outer surface of each lead screw 12. A square plate 14 is connected to the top of each screw plate 13. Two insert plates 15 are connected to one side of each square plate 14. A connecting plate 15 is connected to the outer surface of the delivery pipe 4. The connecting ring 5 and multiple perforated plates 6 are driven by the drive motor 10 to rotate the lead screw 12. The screw plate 13 moves along the thread on the lead screw 12, thereby moving the square plate 14 and the insert plate 15. Driven by the power of the drive motor 10, compared with the traditional manual connection method, the connection time between the wellhead 1 and the delivery pipe 4 is greatly shortened, improving the efficiency of oil extraction operations. The insert plate 15 is inserted into the hole of the perforated plate 6 to fix the delivery pipe 4 to the wellhead 1, preventing the delivery pipe 4 from shaking or shifting after connection, ensuring the stability of the connection, and ensuring the safety and reliability of the oil transportation process. The connection tool has a reasonable structural design, and the installation and operation of each component are relatively simple.

[0024] A sealing element 3 is connected to the top of the wellhead 1. The sealing element 3 includes a main rubber sealing gasket 301 connected to the square gasket 2. A metal gasket 302 is connected to the top of the main rubber sealing gasket 301. A secondary rubber sealing gasket 303 is connected to the upper surface of the metal gasket 302. A plug strip 304 is connected to the top of the secondary rubber sealing gasket 303. The multi-layer sealing design greatly improves the sealing performance of the connection between the wellhead 1 and the delivery pipe 4, reduces the risk of oil leakage, protects the environment, and avoids resource waste. To ensure the sealing performance of the connection, a multi-seal structure is adopted. Multiple sealing gaskets are set at the connection. The rubber sealing gaskets and metal gaskets 302 are used. The sealing gaskets cooperate with each other to form a multi-level seal with good elasticity and sealing performance, which can effectively prevent oil leakage. For example, the rubber sealing gasket can adapt to different surface roughness of the wellhead 1 and provide a good initial seal; the metal gasket 302 further enhances the sealing effect under high pressure conditions through its own elastic deformation.

[0025] A guide member 9 is installed on the upper surface of the square pad 2. The guide member 9 includes multiple strip grooves 901 formed on the upper surface of the square pad 2. Each strip groove 901 is slidably connected to a sliding rod 902. The top end of each sliding rod 902 is connected to the outer surface of the screw plate 13. The strip grooves 901 and sliding rods 902 in the guide member 9 are slidably connected, providing stable guidance for the movement of the screw plate 13. When the drive motor 10 drives the lead screw 12 to rotate and move the screw plate 13, the sliding rod 902 slides in the strip groove 901, ensuring that the screw plate 13 moves along a predetermined trajectory. This allows the insert plate 15 to be accurately inserted into the hole of the perforated plate 6, improving the accuracy and stability of the connection and reducing problems such as poor sealing or weak connection caused by connection deviation.

[0026] The bottom surface of the connecting ring 5 has a groove 7, which is adapted to the size of the plug strip 304. A sealing ring 8 is connected to the bottom surface of the connecting ring 5. The plug strip 304 is adapted to the groove 7 on the bottom surface of the connecting ring 5, which further improves the sealing effect. The sealing ring 8 on the bottom surface of the connecting ring 5 can also form an additional sealing barrier at the connection. The multi-layer sealing design greatly improves the sealing performance of the connection between the wellhead 1 and the delivery pipe 4, reduces the risk of oil leakage, protects the environment, and avoids resource waste.

[0027] Each square plate 14 has an arc-shaped stop block 18 connected to one side, and the arc-shaped stop block 18 is located below the insert plate 15. The arc-shaped stop block 18 located below the insert plate 15 can further limit the position of the delivery pipe 4. During the oil extraction process, the delivery pipe 4 may be subjected to various external forces. The presence of the arc-shaped stop block 18 provides additional anti-detachment protection for the delivery pipe 4, further enhancing the reliability of the connection. The bottom surface of the delivery pipe 4 is connected to two round insert rods 17, and the inner wall of the wellhead 1 is connected to two positioning rings 16 that are adapted to the round insert rods 17. The round insert rods 17 and the positioning rings 16 on the inner wall of the wellhead 1 can play a positioning and guiding role during installation, preventing the delivery pipe 4 from shaking or shifting after connection, ensuring the stability of the connection, and ensuring the safety and reliability of the oil transportation process.

[0028] The working principle of this utility model is as follows:

[0029] During connection, insert the delivery pipe 4 into the wellhead 1 and the square pad 2, and insert the seal 3 into the groove 7 at the bottom of the delivery pipe 4. Then press the delivery pipe 4 to make the perforated plate 6 flush with the insert plate 15. At this time, the two drive motors 10 can be started to rotate the lead screw 12. Under the action of the thread, the screw plate 13 can be moved. When the screw plate 13 moves, it can move the square plate 14 and the insert plate 15 towards the delivery pipe 4. Insert the insert plate 15 into the corresponding perforated plate 6 to complete the connection and installation of the delivery pipe 4. At the same time, the arc stop 18 below the insert plate 15 will press on the connecting ring 5 of the delivery pipe 4, further making the connection of the delivery pipe 4 more secure.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick connection tool for oil wellheads, characterized in that: The device includes a wellhead (1) and a delivery pipe (4). The top of the wellhead (1) is connected to a sealing element (3). A square pad (2) is installed on the upper surface of the wellhead (1). Two square grooves (11) are opened on the upper surface of the square pad (2). A lead screw (12) is rotatably connected to the inside of each square groove (11) through a bearing. A drive motor (10) is installed on the outer surface of each square pad (2) through a frame. The output end of each drive motor (10) is connected to one end of the lead screw (12). A screw plate (13) is threadedly connected to the outer surface of each lead screw (12). A square plate (14) is connected to the top of each screw plate (13). Two insert plates (15) are connected to one side of each square plate (14). A connecting ring (5) and multiple perforated plates (6) are connected to the outer surface of the delivery pipe (4). A guide element (9) is installed on the upper surface of the square pad (2).

2. The quick connection tool for oil wellheads according to claim 1, characterized in that: The sealing element (3) includes a main rubber sealing gasket (301) connected to the square gasket (2), a metal gasket (302) connected to the top of the main rubber sealing gasket (301), a secondary rubber sealing gasket (303) connected to the upper surface of the metal gasket (302), and a plug strip (304) connected to the top of the secondary rubber sealing gasket (303).

3. The quick connection tool for oil wellheads according to claim 2, characterized in that: The bottom surface of the connecting ring (5) is provided with a groove (7), and the groove (7) is adapted to the size of the plug strip (304). A sealing ring (8) is connected to the bottom surface of the connecting ring (5).

4. The quick connection tool for oil wellheads according to claim 1, characterized in that: The guide member (9) includes a plurality of strip grooves (901) formed on the upper surface of the square pad (2), and a sliding rod (902) is slidably connected inside each strip groove (901), and the top end of each sliding rod (902) is connected to the outer surface of the screw plate (13).

5. The quick connection tool for oil wellheads according to claim 1, characterized in that: Each of the square plates (14) has an arc-shaped stop block (18) connected to one side, and the arc-shaped stop block (18) is located below the insert plate (15).

6. The quick connection tool for oil wellheads according to claim 1, characterized in that: The bottom surface of the delivery pipe (4) is connected to two round insert rods (17), and the inner wall of the wellhead (1) is connected to two positioning rings (16) that are adapted to the round insert rods (17).

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