Drilling top drive with electric conduction and signal transmission functions

Abstract

The utility model discloses a drilling top drive with conductive and signal transmission functions, which belongs to the technical field of oil field drilling and comprises a driving device, a rotating device used for rotating and a drilling device used for drilling operation are mounted at the lower end of the driving device, and the rotating device is connected with an electric control device used for transmitting electricity and signals. The lower end of the rotating device is connected with the drilling device which is connected with the electric control device. The rotating device comprises a rotating head gear assembly and a rotating head, the upper end of the rotating head gear assembly is connected with the driving device and the electric control device, the lower end of the rotating head gear assembly is connected with the rotating head and the electric control device, and the lower end of the rotating head is connected with the well drilling device. By means of the mode, electric signals of the electric control device can be transmitted to the drilling device in the rotating state through the rotary head gear assembly through electric transmission inside the rotary head gear assembly, and cable line winding is avoided; the whole structure is simple, the height is small, and the use requirements under various conditions can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field drilling, in particular to a drilling top drive with electrical conduction and signal transmission functions. Background Art

[0002] The top drive drilling rig is the most important drilling power unit currently. It is installed on the top of the derrick to provide rotational power and torque to the drill string, thereby realizing rotary drilling.

[0003] For example, Chinese patent application CN115584925A discloses a top drive system including a balancing device, a top drive gearbox, a top drive rotating head, a blowout preventer, a back-up clamp device and a lifting ring. Since the top drive gearbox includes a lower sealing assembly, the lower sealing assembly includes an upper oil seal and a lower oil cup sleeved on the main shaft. When the main shaft rotates, the upper oil seal rotates relative to the lower oil cup. Since there is a gap in the horizontal direction between the outer wall of the lower oil cup and the inner wall of the upper oil seal.

[0004] However, the top drive system's lower oil cup and other components require power supply, and simple cable connections are prone to entanglement when the lower oil cup rotates, causing accidents. In addition, the structure is complex and the overall size of the equipment is large, making it unsuitable for construction in small spaces.

[0005] Based on this, the utility model designs a drilling top drive with electrical conductivity and signal transmission functions to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a drilling top drive with electrical conductivity and signal transmission functions.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A drilling top drive with electrical conductivity and signal transmission functions, comprising a driving device,

[0009] A drilling device for drilling operations is installed at the lower end of the driving device, a rotary device for rotation is connected to an electronic control device for transmitting electricity and signals, the lower end of the rotary device is connected to the drilling device, and the drilling device is connected to the electronic control device;

[0010] The rotary device includes a rotary head gear assembly and a rotary head. The upper end of the rotary head gear assembly is connected to the electric control device, the lower end of the rotary head gear assembly is connected to the rotary head and the electric control device, and the lower end of the rotary head is connected to the drilling device.

[0011] Furthermore, the driving device includes a power faucet and a gear box. The gear box consists of a box body and a plurality of mutually meshing gears. The gears are rotatably connected to the inner side of the box body. The outer side of the power faucet is fixedly mounted on the drilling derrick. The box body of the gear box is fixedly mounted on the drilling derrick. The gear box is located below the power faucet. The output end of the power faucet is fixedly connected to the input end of the gear box. The output end of the gear box is connected to the drilling device. The power faucet is a commercially available SZL-85 model.

[0012] Furthermore, the turret gear assembly includes a turret gear, a stator, a rotor, a stator input end and a rotor output end. The stator is fixedly mounted on the drilling derrick, the rotor is rotatably connected to the inner side of the stator, the lower end of the rotor is fixedly connected to the turret gear, the stator input end is fixedly mounted on the upper end of the stator, the rotor output end is fixedly mounted on the lower end of the rotor, the lower end of the rotor output end is fixedly connected to the turret head, and the stator input end, the rotor output end and the turret head are connected to the electronic control device.

[0013] Furthermore, a conductive slip ring is provided between the stator and the rotor, and a gap is provided between the stator and the rotary head gear to facilitate the outflow of rainwater.

[0014] Furthermore, the drilling device includes an automatic blowout preventer, an intelligent drill string and a backup clamp. The upper end of the intelligent drill string passes through the rotary head and the rotary head gear and is fixedly connected to the lowest gear of the gear box. The intelligent drill string is fixedly connected to the rotary head and the rotary head gear. The lower end of the intelligent drill string is fixedly connected to the backup clamp. The upper end of the intelligent drill string is provided with an automatic blowout preventer. The automatic blowout preventer, the intelligent drill string and the backup clamp are connected to the electronic control device.

[0015] Furthermore, the electronic control device includes an electronic control box, an input cable and an output cable. The electronic control box is fixedly installed on the drilling derrick, one end of the input cable is fixedly connected to the electronic control box, the other end of the input cable is fixedly connected to the stator input end, and the output cable is connected to the rotor output end, the rotary head, the automatic blowout preventer, the intelligent drill string and the backup clamp.

[0016] Furthermore, the output cable includes a first output cable and a second output cable, the rotor output end is electrically connected to the rotary head, automatic blowout preventer and backup clamp through the first output cable, and the rotor output end is electrically connected to the intelligent drill string through the second output cable.

[0017] Furthermore, the second output circuit is also electrically connected to downhole equipment.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the electrical transmission inside the turret gear integration, the electrical signal of the electronic control device can be transmitted to the rotating drilling device through the turret gear integration, thus avoiding the entanglement of the cable line;

[0019] 2. The overall structure is simple and the height is short, which can meet the needs of various situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a three-dimensional diagram of a drilling top drive with electrical conductivity and signal transmission functions according to the present invention;

[0022] Figure 2 This is a cross-sectional view of the integrated turret gear of the utility model.

[0023] The numbers in the figure represent:

[0024] 1. Power swivel; 2. Gearbox; 3. Rotor gear assembly; 301. Rotor gear; 302. Stator; 303. Rotor; 304. Stator input; 305. Rotor output; 4. Rotor; 5. Automatic blowout preventer; 6. Intelligent drill string; 7. Backup tongs; 8. Electrical control box; 9. Input cable; 10. Output cable; 1001. First output cable; 1002. Second output cable. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] The terms “left,” “right,” “front,” “back,” “upper,” and “lower” mentioned in the following description are oriented in the viewing direction of the stereoscopic diagram.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 2 , a drilling top drive with electrical conductivity and signal transmission functions, including a driving device,

[0028] A drilling device for drilling operations is installed at the lower end of the driving device, a rotary device for rotation is connected to an electronic control device for transmitting electricity and signals, the lower end of the rotary device is connected to the drilling device, and the drilling device is connected to the electronic control device;

[0029] The rotary device includes a rotary head gear assembly 3 and a rotary head 4. The upper end of the rotary head gear assembly 3 is connected to the electronic control device, the lower end of the rotary head gear assembly 3 is connected to the rotary head 4 and the electronic control device, and the lower end of the rotary head 4 is connected to the drilling device.

[0030] When the drilling top drive with conductive and signal transmission functions is in normal use, the driving device drives the drilling device to rotate, and the drilling device drives the rotating parts of the turret gear integration 3 to rotate. Through the electrical transmission inside the turret gear integration 3, the electrical signal of the electronic control device can be transmitted to the rotating drilling device through the turret gear integration 3, avoiding the entanglement of the cable line.

[0031] The driving device includes a power faucet 1 and a gear box 2. The gear box 2 consists of a box body and a plurality of mutually meshing gears. The gears are rotatably connected to the inner side of the box body. The outer side of the power faucet 1 is fixedly mounted on the drilling derrick. The box body of the gear box 2 is fixedly mounted on the drilling derrick. The gear box 2 is located below the power faucet 1. The output end of the power faucet 1 is fixedly connected to the input end of the gear box 2. The output end of the gear box 2 is connected to the drilling device. The power faucet 1 is a commercially available SZL-85 model.

[0032] The turret gear assembly 3 includes a turret gear 301, a stator 302, a rotor 303, a stator input end 304 and a rotor output end 305. The stator 302 is fixedly mounted on the drilling derrick. The rotor 303 is rotatably connected to the inner side of the stator 302. The lower end of the rotor 303 is fixedly connected to the turret gear 301. The stator input end 304 is fixedly mounted on the upper end of the stator 302. The rotor output end 305 is fixedly mounted on the lower end of the rotor 303. The lower end of the rotor output end 305 is fixedly connected to the turret 4. The stator input end 304, the rotor output end 305 and the turret 4 are connected to the electronic control device.

[0033] A conductive slip ring is provided between the stator 302 and the rotor 303 , and a gap is provided between the stator 302 and the turret gear 301 to facilitate the outflow of rainwater.

[0034] The drilling device includes an automatic blowout preventer 5, an intelligent drill string 6 and a backup tong 7. The upper end of the intelligent drill string 6 passes through the turret 4 and the turret gear 301 and is fixedly connected to the lowest gear of the gear box 2. The intelligent drill string 6 is fixedly connected to the turret 4 and the turret gear 301. The lower end of the intelligent drill string 6 is fixedly connected to the backup tong 7. The upper end of the intelligent drill string 6 is provided with an automatic blowout preventer 5. The automatic blowout preventer 5, the intelligent drill string 6 and the backup tong 7 are connected to the electronic control device.

[0035] The electric control device includes an electric control box 8, an input cable 9 and an output cable 10. The electric control box 8 is fixedly installed on the drilling derrick. One end of the input cable 9 is fixedly connected to the electric control box 8, and the other end of the input cable 9 is fixedly connected to the stator input end 304. The output cable 10 is connected to the rotor output end 305, the rotary head 4, the automatic blowout preventer 5, the intelligent drill string 6 and the backup clamp 7.

[0036] The output cable 10 includes a first output cable 1001 and a second output cable 1002. The rotor output end 305 is electrically connected to the rotary head 4, the automatic blowout preventer 5 and the backup clamp 7 through the first output cable 1001, and the rotor output end 305 is electrically connected to the smart drill string 6 through the second output cable 1002.

[0037] The second output cable 1002 is also electrically connected to downhole equipment.

[0038] When the drilling top drive with conductive and signal transmission functions is in normal use, the power swivel 1 is started, the power swivel 1 drives the gear box 2 to operate, the gear box 2 drives the intelligent drill string 6 to rotate, the intelligent drill string 6 drives the rotary head gear 301, the rotary head 4, the automatic blowout preventer 5 and the backup clamp 7 to rotate, the electrical signal of the electric control box 8 is transmitted to the stator 302 through the input cable 9 and the stator input terminal 304, the electrical signal of the stator 302 is transmitted to the rotor 303 through the conductive slip ring and is transmitted to the rotor 303, and the electrical signal of the rotor 303 is transmitted to the rotor 303. The electrical signals are transmitted to the rotary head 4, the automatic blowout preventer 5 and the backup clamp 7 through the rotor output end 305 and the first output cable 1001, and then to the intelligent drill string 6 and downhole equipment through the second output cable 1002. By setting the conductive slip ring between the stator 302 and the rotor 303, the electrical signals of the electric control box 8 can be transmitted to the rotary head 4, the automatic blowout preventer 5, the intelligent drill string 6 and the backup clamp 7 in the rotating state, avoiding the entanglement of the cable lines. The overall structure is simple and the height is short, which can meet the use in various situations.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A drilling top drive with electrical conductivity and signal transmission functions, comprising a drive device, characterized in that: A drilling device for drilling operations is installed at the lower end of the driving device, a rotary device for rotation is connected to an electronic control device for transmitting electricity and signals, the lower end of the rotary device is connected to the drilling device, and the drilling device is connected to the electronic control device; The rotary device comprises a rotary head gear assembly (3) and a rotary head (4), the upper end of the rotary head gear assembly (3) is connected to the electric control device, the lower end of the rotary head gear assembly (3) is connected to the rotary head (4) and the electric control device, and the lower end of the rotary head (4) is connected to the drilling device; The turret gear assembly (3) comprises a turret gear (301), a stator (302), a rotor (303), a stator input end (304) and a rotor output end (305), wherein the stator (302) is fixedly mounted on a drilling derrick, the rotor (303) is rotatably connected to the inner side of the stator (302), the lower end of the rotor (303) is fixedly connected to the turret gear (301), the stator input end (304) is fixedly mounted on the upper end of the stator (302), the rotor output end (305) is fixedly mounted on the lower end of the rotor (303), the lower end of the rotor output end (305) is fixedly connected to the turret (4), and the stator input end (304), the rotor output end (305) and the turret (4) are connected to an electric control device; A conductive slip ring is provided between the stator (302) and the rotor (303), and a gap is provided between the stator (302) and the rotary head gear (301).

2. The drilling top drive with electrical conduction and signal transmission functions according to claim 1, characterized in that: The driving device comprises a power faucet (1) and a gear box (2), wherein the gear box (2) comprises a box body and a plurality of mutually meshing gears, wherein the gears are rotatably connected to the inner side of the box body, the outer side of the power faucet (1) is fixedly mounted on a drilling derrick, the box body of the gear box (2) is fixedly mounted on the drilling derrick, the gear box (2) is located below the power faucet (1), the output end of the power faucet (1) is fixedly connected to the input end of the gear box (2), and the input end of the gear box (2) is connected to the drilling device.

3. The drilling top drive with electrical conduction and signal transmission functions according to claim 2, characterized in that: The drilling device comprises an automatic blowout preventer (5), an intelligent drill string (6) and a back-up tong (7); the upper end of the intelligent drill string (6) passes through a rotary head (4) and a rotary head gear (301) and is fixedly connected to the lowest gear of a gear box (2); the intelligent drill string (6) is fixedly connected to the rotary head (4) and the rotary head gear (301); the lower end of the intelligent drill string (6) is fixedly connected to the back-up tong (7); the upper end of the intelligent drill string (6) is provided with an automatic blowout preventer (5); the automatic blowout preventer (5), the intelligent drill string (6) and the back-up tong (7) are connected to an electric control device.

4. The drilling top drive with electrical conduction and signal transmission functions according to claim 3, characterized in that: The electric control device comprises an electric control box (8), an input cable (9) and an output cable (10); the electric control box (8) is fixedly mounted on a drilling derrick; one end of the input cable (9) is fixedly connected to the electric control box (8); the other end of the input cable (9) is fixedly connected to the stator input end (304); and the output cable (10) is connected to the rotor output end (305), the rotary head (4), the automatic blowout preventer (5), the intelligent drill string (6) and the backup clamp (7).

5. The drilling top drive with electrical conduction and signal transmission functions according to claim 4, characterized in that: The output cable (10) includes a first output cable (1001) and a second output cable (1002); the rotor output end (305) is electrically connected to the rotary head (4), the automatic blowout preventer (5) and the backup clamp (7) via the first output cable (1001); and the rotor output end (305) is electrically connected to the intelligent drill string (6) via the second output cable (1002).

6. The drilling top drive with electrical conduction and signal transmission functions according to claim 5, characterized in that: The second output cable (1002) is also electrically connected to downhole equipment.

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