Wellhead oil pipe torque detection nipple

Abstract

The utility model belongs to the technical field of well mouth drill rods, and particularly relates to a well mouth oil pipe torque detection short section which comprises a central pipe, a detection device is arranged on the outer surface of the central pipe, the detection device comprises a strain gauge, and the strain gauge monitors torque generated when a drill rod rotates. By arranging the adjusting device, the signal coverage range is adjusted, the motor drives the gear to rotate and drives the rack meshed with the gear to move so as to drive the wireless node fixedly installed on the rack to ascend and descend, and the rubber layers fixedly installed on the inner walls of the support and the supporting frame can effectively absorb vibration and impact. According to the utility model, internal electronic components are protected from being influenced by mechanical vibration, and the technical problems that when the torque of the wellhead drill rod is detected, measurement cannot be carried out at different depths or positions, data are possibly incomplete, and the actual situation of the whole drilling process cannot be reflected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead drill pipes, in particular to a wellhead tubing torque detection sub-section. Background Technique

[0002] When detecting the torque during the connection of wellhead drill pipes, it is to ensure the fastening degree of the drill pipe connection, prevent damage to the drill pipe caused by excessive torque or leakage caused by too small torque. The wellhead drill pipe torque detection sub-section is mainly related to the use of torque detection. This kind of equipment is used to detect the torque during the connection of drill pipes to ensure that the drill pipe connection meets the specified torque requirements. Therefore, a torque detection method is needed during the connection of drill pipes. On the premise of ensuring safe operation, the torque values are detected for different wellheads, so as to improve the connection fastening degree of drill pipes and the oilfield production efficiency.

[0003] Chinese Patent with the authorization announcement number CN114017012B discloses a calibration device for a downhole drill pressure and torque measurement sub-section, belonging to the technical field of downhole measurement-while-drilling engineering. It includes a base, and is characterized in that: a sub-section fixing head is connected to the sub-section fixing support, a measurement sub-section is arranged between the sub-section fixing support and the sub-section centralizing support, a sub-section adapter is connected to the measurement sub-section, a lead screw is arranged between the lead screw support and the sub-section centralizing support, one end of the lead screw is connected with a variable connection sleeve, a worm gear shaft is arranged between the worm gear support and the lead screw support, a worm gear is installed on the worm gear shaft, one end of the worm gear shaft is connected with a transmission connection sleeve, and the other end is installed on the worm gear support. The other end of the lead screw is connected with the transmission connection sleeve. One end of the worm is connected with a clutch, and the other end is connected with a wire winding wheel. This invention adopts a full mechanical structure transmission, has two modes of weight calibration and rapid calibration, and can correct the calibration device through weight calibration, improving the calibration accuracy and calibration efficiency.

[0004] However, when detecting the torque of wellhead drill pipes, the above-mentioned scheme mainly relies on manual calculation and recording, with limited data processing ability, may not be suitable for changing working environments, and cannot measure at different depths or positions, which may lead to incomplete data and cannot reflect the actual situation of the entire drilling process. Therefore, a PVC drain pipe with a sewage discharge component is proposed to solve the above-mentioned problems. Content of the Utility Model

[0005] In order to solve the technical problems that when detecting the torque of wellhead drill pipes, it mainly relies on manual calculation and recording, has limited data processing ability, and cannot measure at different depths or positions, which may lead to incomplete data, this application provides a wellhead tubing torque detection sub-section.

[0006] The utility model provides a wellhead oil pipe torque detection nipple, which comprises a central pipe. The outer surface of the central pipe is provided with a detection device, which comprises a strain gauge, and the strain gauge monitors the torque generated when the drill pipe rotates.

[0007] An adjustment device is provided on the outer surface of the central tube. The adjustment device includes a wireless node. The raising and lowering of the wireless node adjusts the signal coverage range.

[0008] Preferably, the detection device further comprises a shell, the inner wall of the groove of the shell is threadedly connected to the outer surface of the central tube, and a sealing O-ring is fixedly mounted on the inner wall of the shell.

[0009] Through the above technical solution, the outer shell and the central tube are threadedly connected to form a tight seal and protect the internal electronic components. The sealing O-ring can effectively fill the gap between the outer shell and the central tube to prevent external contaminants from entering the interior of the device.

[0010] Preferably, a switch mounting bracket is fixedly mounted on the outer surface of the central tube by screws, a switch button is fixedly mounted on the inner wall of the groove of the switch mounting bracket, and a switch protection cover is slidably inserted into the inner wall of the groove of the switch mounting bracket.

[0011] Through the above technical solution, the center tube and the switch mounting frame are fixed with screws, and the switch button is installed on the inner wall of the groove of the switch mounting frame, allowing the user to operate the device. The switch mounting frame and the switch protective cover are slidably plugged in to facilitate the removal of the switch protective cover, while preventing misoperation or external objects from interfering with the switch button.

[0012] Preferably, a fixing cover is fixedly mounted on the outer surface of the central tube by screws, an antenna is fixedly mounted on the inner wall of the groove of the fixing cover, and the outer surface of the central tube is fixedly bonded to the outer surface of the strain gauge.

[0013] Through the above technical solution, the center tube and the fixed cover are fixed with screws, and the antenna can enhance the communication capability of the device to ensure timely transmission of data. The strain gauge is fixedly bonded to the center tube and fixed, and the high sensitivity of the strain gauge can accurately capture tiny torque changes, ensuring that operators can promptly detect potential problems during the drilling process.

[0014] Preferably, a support frame is fixedly mounted on the outer surface of the central tube by screws, a battery is fixedly mounted on the inner wall of the groove of the support frame, and a bracket is fixedly mounted on the outer surface of the central tube by screws.

[0015] Through the above technical solution, the central tube and the support frame are fixedly installed by screws to fix them. The battery is installed on the inner wall of the groove of the support frame and serves as the power source of the device. At the same time, it is convenient to replace the battery and protects the battery from the external environment. The central tube and the support are fixedly installed by screws, which is convenient for disassembly while fixing them, and provides a support platform for adjusting the device.

[0016] Preferably, the adjusting device further includes a motor. The motor is fixedly installed on the inner wall of the groove of the support. A gear is fixedly installed on the output shaft of the motor. A rack is slidably inserted into the inner wall of the groove of the support, and the rack meshes with the gear.

[0017] Through the above technical solution, the motor and the support are fixedly installed to fix it. The motor drives the gear to rotate, driving the rack engaged with it to move, so as to drive the wireless node fixedly installed on the rack to lift.

[0018] Preferably, the outer surface of the rack is fixedly installed with the outer surface of the wireless node. Rubber layers are fixedly installed on the inner walls of the support and the support frame.

[0019] Through the above technical solution, the rack and the wireless node are fixedly installed. While fixing it, the movement of the rack drives the wireless node to lift. The rubber layers fixedly installed on the inner walls of the support and the support frame can effectively absorb vibrations and impacts, protecting the internal electronic components from the influence of mechanical vibrations.

[0020] The beneficial effects in the present utility model are as follows:

[0021] 1. By setting up a detection device to monitor the torque generated when the drill pipe rotates, the outer shell is threadedly connected to the central tube to form a tight seal and protect the internal electronic components. The sealing O-ring can effectively fill the gap between the outer shell and the central tube. The switch button allows the user to operate the device. The switch mounting bracket and the switch protection cover are slidably inserted, which is convenient for disassembling the switch protection cover. The antenna can enhance the communication ability of the device. The high sensitivity of the strain gauge can accurately capture tiny torque changes. The battery is installed on the inner wall of the groove of the support frame and serves as the power source of the device. The central tube and the support are fixedly installed by screws, which is convenient for disassembly while fixing them, and provides a support platform for adjusting the device, solving the technical problem that when detecting the torque of the wellhead drill pipe, it mainly relies on manual calculation and recording, with limited data processing ability and may not be suitable for variable working environments.

[0022] 2. By setting an adjustment device to adjust the signal coverage range, the motor drives the gear to rotate, driving the rack engaged with it to move, so as to drive the wireless node fixedly installed on the rack to lift. The rubber layers fixedly installed on the inner walls of the bracket and the support frame can effectively absorb vibrations and impacts, protecting the internal electronic components from the influence of mechanical vibrations, and solving the technical problem that when detecting the torque of the drill pipe at the wellhead, it is impossible to measure at different depths or positions, which may lead to incomplete data and unable to reflect the actual situation of the entire drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a short joint for detecting the torque of the oil pipe at the wellhead proposed by the present utility model;

[0024] Figure 2 Three-dimensional view of the switch protection cover structure of a short joint for detecting the torque of the oil pipe at the wellhead proposed by the present utility model;

[0025] Figure 3 Three-dimensional view of the switch button structure of a short joint for detecting the torque of the oil pipe at the wellhead proposed by the present utility model;

[0026] Figure 4 Three-dimensional view of the battery structure of a short joint for detecting the torque of the oil pipe at the wellhead proposed by the present utility model;

[0027] Figure 5 Three-dimensional view of the motor structure of a short joint for detecting the torque of the oil pipe at the wellhead proposed by the present utility model.

[0028] In the figure: 1, central pipe; 2, outer shell; 21, sealing O-ring; 3, switch mounting bracket; 31, switch button; 32, switch protection cover; 4, fixed cover; 41, antenna; 42, strain gauge; 5, support frame; 51, battery; 52, bracket; 6, motor; 61, gear; 62, rack; 7, wireless node; 71, rubber layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] Referring to Figures 1 - 5 , a short joint for detecting the torque of the oil pipe at the wellhead includes a central pipe 1, and a detection device is arranged on the outer surface of the central pipe 1. The detection device includes a strain gauge 42, and the strain gauge 42 monitors the torque generated when the drill pipe rotates.

[0031] To protect the internal electronic components, the detection device further includes a housing 2. The inner wall of the groove of the housing 2 is threadedly connected to the outer surface of the central tube 1. A sealing O-ring 21 is fixedly installed on the inner wall of the housing 2. By threadedly connecting the housing 2 and the central tube 1, a tight seal is formed to protect the internal electronic components. The sealing O-ring 21 can effectively fill the gap between the housing 2 and the central tube 1 to prevent external contaminants from entering the interior of the device.

[0032] To prevent misoperation or interference from external objects to the switch button 31, a switch mounting bracket 3 is fixedly installed on the outer surface of the central tube 1 by screws. A switch button 31 is fixedly installed on the inner wall of the groove of the switch mounting bracket 3. A switch protection cover 32 is slidably inserted into the inner wall of the groove of the switch mounting bracket 3. By fixedly installing the central tube 1 and the switch mounting bracket 3 with screws, it is fixed. The switch button 31 is installed on the inner wall of the groove of the switch mounting bracket 3, allowing the user to operate the device. The switch mounting bracket 3 and the switch protection cover 32 are slidably inserted, facilitating the removal of the switch protection cover 32 and preventing misoperation or interference from external objects to the switch button 31.

[0033] To ensure that the operator can promptly detect potential problems during the drilling process, a fixing cover 4 is fixedly installed on the outer surface of the central tube 1 by screws. An antenna 41 is fixedly installed on the inner wall of the groove of the fixing cover 4. The outer surface of the central tube 1 is fixedly bonded to the outer surface of the strain gauge 42. By fixedly installing the central tube and the fixing cover 4 with screws, it is fixed. The antenna 41 can enhance the communication ability of the device to ensure the timely transmission of data. The strain gauge 42 is fixedly bonded to the central tube 1 and fixed. Moreover, the high sensitivity of the strain gauge 42 can accurately capture minute torque changes to ensure that the operator can promptly detect potential problems during the drilling process.

[0034] To fix the battery 51, a support frame 5 is fixedly installed on the outer surface of the central tube 1 by screws. The battery 51 is fixedly installed on the inner wall of the groove of the support frame 5. A bracket 52 is fixedly installed on the outer surface of the central tube 1 by screws. By fixedly installing the central tube 1 and the support frame 5 with screws, it is fixed. The battery 51 is installed on the inner wall of the groove of the support frame 5 as the power source of the device, facilitating the replacement of the battery 51 and protecting the battery 51 from the external environment. By fixedly installing the central tube 1 and the bracket 52 with screws, it is fixed and easy to disassemble, providing a support platform for adjusting the device.

[0035] By setting up a detection device, the torque generated during the rotation of the drill pipe is monitored. The outer shell 2 is threadedly connected to the central pipe 1 to form a tight seal and protect the internal electronic components. The sealing O-ring 21 can effectively fill the gap between the outer shell 2 and the central pipe 1. The switch button 31 allows the user to operate the device. The switch mounting bracket 3 and the switch protection cover 32 are slidably inserted, facilitating the removal of the switch protection cover 32. The antenna 41 can enhance the communication ability of the device. The high sensitivity of the strain gauge 42 can accurately capture minute torque changes. The battery 51 is installed on the inner wall of the groove of the support frame 5 and serves as the power source of the device. The central pipe 1 and the support 52 are fixedly installed by screws, which facilitates disassembly while fixing them and provides a support platform for adjusting the device. This solves the technical problem that when detecting the torque of the drill pipe at the wellhead, it mainly relies on manual calculation and recording, with limited data processing capabilities and may not be suitable for changing working environments.

[0036] In order to adjust the signal coverage range, an adjustment device is provided on the outer surface of the central pipe 1. The adjustment device includes a wireless node 7, and the lifting of the wireless node 7 adjusts the signal coverage range.

[0037] In order to drive the gear 61 to rotate, the adjustment device further includes a motor 6. The motor 6 is fixedly installed on the inner wall of the groove of the support 52. A gear 61 is fixedly installed on the output shaft of the motor 6. A rack 62 is slidably inserted into the inner wall of the groove of the support 52. The rack 62 meshes with the gear 61. By fixedly installing the motor 6 on the support 52, it is fixed. The motor 6 drives the gear 61 to rotate, driving the meshing rack 62 to move, so as to drive the wireless node 7 fixedly installed on the rack 62 to lift.

[0038] In order to drive the wireless node 7 to lift, the outer surface of the rack 62 is fixedly installed with the outer surface of the wireless node 7. Rubber layers 71 are fixedly installed on the inner walls of both the support 52 and the support frame 5. By fixedly installing the rack 62 with the wireless node 7, while fixing it, the movement of the rack 62 drives the wireless node 7 to lift. The rubber layers 71 fixedly installed on the inner walls of the support 52 and the support frame 5 can effectively absorb vibrations and impacts, protecting the internal electronic components from the influence of mechanical vibrations.

[0039] By setting up the adjustment device to adjust the signal coverage range, the motor 6 drives the gear 61 to rotate, driving the meshing rack 62 to move, so as to drive the wireless node 7 fixedly installed on the rack 62 to lift. The rubber layers 71 fixedly installed on the inner walls of the support 52 and the support frame 5 can effectively absorb vibrations and impacts, protecting the internal electronic components from the influence of mechanical vibrations. This solves the technical problem that when detecting the torque of the drill pipe at the wellhead, it is impossible to measure at different depths or positions, which may lead to incomplete data and unable to reflect the actual situation of the entire drilling process.

[0040] Working principle: When it is necessary to detect the torque of the drill pipe, the central pipe 1 is fixed on the outer surface of the drill pipe. The operator pulls out the switch protection cover 32 slidably inserted on the switch mounting bracket 3 fixedly installed on the central pipe 1 through screws, presses the switch button 31 on the inner wall of the groove of the switch mounting bracket 3 to turn on the detection device. The outer shell 2 is threadedly connected to the central pipe 1 to form a tight seal and protect the internal electronic components. The sealing O-ring 21 can effectively fill the gap between the outer shell 2 and the central pipe 1. During the drilling process, the strain gauge 42 fixedly bonded to the central pipe 1 will monitor the torque change of the drill pipe in real time. The data is transmitted to the control center or the display terminal through the wireless node 7 fixedly installed on the rack 62. The battery 51 fixedly installed in the support frame 5 provides power for the device;

[0041] When it is necessary to adjust the lifting of the wireless node 7 to adjust the signal coverage, start the motor 6 to drive the gear 61 to rotate, drive the rack 62 engaged with it to lift in the slidably inserted bracket 52, and at the same time drive the wireless node 7 fixedly installed on the rack 62 to lift. The rubber layer 71 fixedly installed on the inner walls of the bracket 52 and the support frame 5 can effectively absorb vibration and impact, protecting the internal electronic components from the influence of mechanical vibration.

[0042] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A torque detection sub for wellhead tubing, comprising a central tube (1), characterized in that: A detection device is provided on the outer surface of the central pipe (1). The detection device includes a strain gauge (42) that monitors the torque generated during the rotation of the drill pipe. An adjustment device is provided on the outer surface of the central pipe (1). The adjustment device includes a wireless node (7), and the lifting of the wireless node (7) adjusts the signal coverage range.

2. The torque detection nipple for wellhead tubing according to claim 1, wherein: The detection device further includes a housing (2). The inner wall of the groove of the housing (2) is threadedly connected to the outer surface of the central pipe (1), and a sealing O-ring (21) is fixedly installed on the inner wall of the housing (2).

3. The torque detection nipple for wellhead tubing according to claim 2, characterized in that: A switch mounting bracket (3) is fixedly installed on the outer surface of the central pipe (1) by screws. A switch button (31) is fixedly installed on the inner wall of the groove of the switch mounting bracket (3), and a switch protection cover (32) is slidably inserted into the inner wall of the groove of the switch mounting bracket (3).

4. The torque detection nipple for wellhead tubing according to claim 3, characterized in that: A fixing cover (4) is fixedly installed on the outer surface of the central pipe (1) by screws. An antenna (41) is fixedly installed on the inner wall of the groove of the fixing cover (4), and the outer surface of the central pipe (1) is fixedly adhered to the outer surface of the strain gauge (42).

5. The torque detection nipple for wellhead tubing according to claim 4, wherein: A support frame (5) is fixedly installed on the outer surface of the central pipe (1) by screws. A battery (51) is fixedly installed on the inner wall of the groove of the support frame (5), and a bracket (52) is fixedly installed on the outer surface of the central pipe (1) by screws.

6. The torque detection nipple for wellhead tubing according to claim 5, wherein: The adjustment device further includes a motor (6). The motor (6) is fixedly installed on the inner wall of the groove of the bracket (52). A gear (61) is fixedly installed on the output shaft of the motor (6). A rack (62) is slidably inserted into the inner wall of the groove of the bracket (52), and the rack (62) meshes with the gear (61).

7. The torque detection nipple for wellhead tubing according to claim 6, wherein: The outer surface of the rack (62) is fixedly installed with the outer surface of the wireless node (7), and rubber layers (71) are fixedly installed on the inner walls of the bracket (52) and the support frame (5).

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