Inertia high-speed friction type drill rod

Abstract

The utility model discloses an inertia high-speed friction type drill rod, which relates to the technical field of drill rods, and comprises a titanium alloy rod body, the top end of the titanium alloy rod body is fixedly connected with an external thread joint, the bottom end of the titanium alloy rod body is provided with an internal thread interface, a drill rod inner cavity is vertically arranged in the titanium alloy rod body, and the drill rod inner cavity is provided with an internal thread interface. An antifriction assembly for reducing the friction coefficient by means of inertia is arranged in the titanium alloy rod body. According to the inertia high-speed friction type drill rod, the semicircular inner groove, the outer communicating hole, the semicircular rubber funnel, the rubber guide pipe and the drill rod inner cavity are arranged, when the inertia high-speed friction type drill rod is used, drilling fluid passes through the drill rod inner cavity, and when the titanium alloy rod body rotates at a high speed, the drilling fluid escapes outwards along the semicircular inner groove and the outer communicating hole under the inertia effect; the overflowed drilling fluid wraps the outer surface of the titanium alloy rod body, a liquid antifriction barrier is formed between the titanium alloy rod body and a geological rock stratum, the high-speed rotation antifriction function is achieved, and the problem that the device does not have the high-speed rotation antifriction function is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill rods, in particular to an inertial high-speed friction drill rod. Background Art

[0002] With the growing demand for exploration and development of resources such as oil and natural gas, the performance requirements for drilling equipment are becoming higher and higher. Drill rods, as an important accessory of drilling equipment, are also constantly being upgraded.

[0003] At present, most drill pipes on the market are similar in structure, with titanium alloy as the main material of the pipe body, an external thread joint on the top of the pipe body and an internal thread joint on the bottom. The pipe body is hollow to facilitate the passage of drilling fluid. However, there are some functional deficiencies in actual use and there is room for improvement. For example, when the drill pipe is rotating at a high speed, there is high-speed friction between the outer side and the geological rock formation, resulting in rapid wear and frequent replacement, which seriously affects the drilling efficiency and operating costs. It does not have the function of high-speed rotation friction reduction.

[0004] Now, a new type of inertial high-speed friction drill rod is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an inertial high-speed friction drill rod to solve the problem that the above-mentioned background technology does not have the function of high-speed rotation friction reduction.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inertial high-speed friction drill rod, comprising a titanium alloy rod body, the top end of the titanium alloy rod body is fixedly connected to an external thread joint, the bottom end of the titanium alloy rod body is provided with an internal thread interface, the interior of the titanium alloy rod body is vertically provided with a drill rod inner cavity, and the interior of the titanium alloy rod body is provided with a friction reduction component that reduces the friction coefficient by means of inertia.

[0007] The friction reduction assembly includes multiple groups of semicircular inner grooves, which are respectively arranged at the upper and lower ends of the left and right sides of the drill pipe inner cavity. The upper and lower ends of the left and right sides of the titanium alloy rod body are respectively provided with three groups of external connecting holes. A semicircular rubber funnel is glued to the inside of the semicircular inner groove, and a rubber conduit is provided inside the external connecting hole.

[0008] Preferably, the semicircular inner groove, the outer connecting hole and the interior of the inner cavity of the drill rod are connected, and the semicircular inner groove and the outer connecting hole are symmetrically distributed about the vertical center line of the titanium alloy rod body.

[0009] Preferably, the shape and size of the outer part of the semicircular rubber funnel are consistent with the shape and size of the inner part of the semicircular inner groove, and the outer diameter of the rubber conduit is consistent with the inner diameter of the outer connecting hole.

[0010] Preferably, the semicircular rubber funnel, the rubber tube and the interior of the inner cavity of the drill rod are connected, and the semicircular rubber funnel and the rubber tube are elastic.

[0011] Preferably, an upper sealing plug is fixedly connected to the top of the drill rod inner cavity, a central water inlet is arranged at the middle position of the top of the upper sealing plug, a right water inlet is arranged on the right side of the top of the upper sealing plug, and a left water inlet is arranged on the left side of the top of the upper sealing plug; a lower sealing plug is fixedly connected to the bottom of the drill rod inner cavity, a right water outlet is arranged on the right side of the bottom end of the lower sealing plug, a central water outlet is arranged at the middle position of the bottom end of the lower sealing plug, and a left water outlet is arranged on the left side of the bottom end of the lower sealing plug; a main through pipe is vertically fixedly connected between the central water inlet and the central water outlet, and a secondary coil is fixedly connected between the left water inlet and the right water outlet.

[0012] Preferably, the central water inlet, the right water inlet, and the left water inlet pass through the upper and lower ends of the upper sealing plug, the right water outlet, the central water outlet, and the left water outlet pass through the upper and lower ends of the lower sealing plug, the central water inlet, the central water outlet, and the interior of the main through pipe are connected, the left water inlet, the right water outlet, and the interior of the secondary coil are connected, the right water inlet, the left water outlet, and the interior of the drill pipe cavity are connected, and the outer wall of the secondary coil is in contact with the inner wall of the drill pipe cavity.

[0013] Preferably, a reserved groove is provided at the top of the front end of the titanium alloy rod body, a sealing plate is fixedly connected to the front end of the reserved groove, a circuit board is fixedly connected inside the reserved groove, an MCU is installed at the bottom of the right side of the front end of the circuit board, a wireless communication module is installed at the top of the right side of the front end of the circuit board, a lithium battery is provided on the left side of the front end of the circuit board, a depth sensor is fixedly connected to the top of the left side of the circuit board, and a temperature sensor is fixedly connected to the bottom of the left side of the circuit board.

[0014] Preferably, the front end of the sealing plate is flush with the front end of the titanium alloy rod body, and the lithium battery, depth sensor, and temperature sensor are electrically connected.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the inertial high-speed friction drill rod not only realizes the function of high-speed rotation friction reduction, but also realizes the function of improving the cooling and heat dissipation efficiency, and also realizes the function of facilitating the monitoring of the drill rod status;

[0016] (1) By providing a semicircular inner groove, an outer connecting hole, a semicircular rubber funnel, a rubber conduit and a drill pipe inner cavity, when in use, the titanium alloy rod body serves as the drill pipe body for conveying drilling fluid and torque. The drilling fluid passes through the inner cavity of the drill pipe. When the titanium alloy rod body rotates at high speed, the drilling fluid is inertially acted on and will escape outward along the semicircular inner groove and the outer connecting hole. The semicircular rubber funnel and the rubber conduit can reduce the probability of external liquid backflow while guiding the flow. The overflowed drilling fluid is coated on the outer surface of the titanium alloy rod body, forming a liquid friction-reducing barrier between the titanium alloy rod body and the geological rock formation, reducing the surface wear of the titanium alloy rod body, and realizing the function of high-speed rotation friction reduction;

[0017] (2) By providing an upper sealing plug, a central water inlet, a right water inlet, a left water inlet, a lower sealing plug, a right water outlet, a central water outlet, a left water outlet, a main through pipe and a secondary coil, when in use, the drilling fluid is pumped in from top to bottom, a part of it passes downward quickly through the central water inlet, the main through pipe and the central water outlet, a part of it passes downward through the left water inlet, the secondary coil and the right water outlet, and another part of it passes downward through the right water inlet, the inner cavity of the drill pipe and the left water outlet, forming three fluid channels with different flow rates inside the titanium alloy rod body, the copper secondary coil can guide the temperature of the drill pipe inward, cool it down through the double fluid inside and outside the inner cavity of the drill pipe and the secondary coil, and improve the heat dissipation efficiency, the main through pipe can ensure the rapid flow of the drilling fluid, and realize the function of improving the cooling and heat dissipation efficiency;

[0018] (3) By providing a reserved groove, a sealing plate, a circuit board, an MCU, a wireless communication module, a lithium battery, a depth sensor and a temperature sensor, when in use, as the drill rod is lowered, the depth sensor senses the depth of the drill rod in real time, and the temperature sensor feeds back the actual temperature of the drill rod. The depth, temperature and other related data are uploaded in real time through the wireless communication module, which is convenient for ground staff to monitor. The reserved groove and the sealing plate can protect the circuit board inside to prevent it from being damaged by external forces, and the lithium battery can power the MCU, wireless communication module and other electronic components on the circuit board, thereby realizing the function of conveniently monitoring the status of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of an enlarged front cross-sectional structure of the lower sealing plug of the utility model;

[0021] Figure 3 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0022] Figure 4 It is a partial front view enlarged structural schematic diagram of the titanium alloy rod body of the utility model;

[0023] Figure 5 It is a schematic diagram of the enlarged front view structure of the circuit board of the utility model.

[0024] In the figure: 1. titanium alloy rod body; 2. semicircular inner groove; 3. external connecting hole; 4. semicircular rubber funnel; 5. rubber catheter; 6. external thread joint; 7. upper sealing plug; 8. central water inlet; 9. right water inlet; 10. left water inlet; 11. lower sealing plug; 12. right water outlet; 13. central water outlet; 14. left water outlet; 15. main through pipe; 16. secondary coil; 17. drill pipe inner cavity; 18. reserved groove; 19. sealing plate; 20. circuit board; 21. MCU; 22. wireless communication module; 23. lithium battery; 24. depth sensor; 25. temperature sensor; 26. internal thread interface. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figure 1-5 An inertial high-speed friction drill rod comprises a titanium alloy rod body 1, the top of the titanium alloy rod body 1 is fixedly connected with an outer thread joint 6, the bottom of the titanium alloy rod body 1 is provided with an inner thread interface 26, a drill rod inner cavity 17 is vertically provided inside the titanium alloy rod body 1, and a friction reduction component for reducing the friction coefficient by means of inertia is provided inside the titanium alloy rod body 1;

[0027] See also Figure 1-5 An inertial high-speed friction drill rod also includes a friction reduction component, which includes a plurality of groups of semicircular inner grooves 2, which are respectively arranged at the upper and lower ends of the left and right sides of the inner cavity 17 of the drill rod, and the upper and lower ends of the left and right sides of the titanium alloy rod body 1 are respectively provided with three groups of external communication holes 3, the interior of the semicircular inner groove 2 is glued with a semicircular rubber funnel 4, and the interior of the external communication hole 3 is provided with a rubber conduit 5;

[0028] The semicircular inner groove 2, the outer connecting hole 3, and the inner part of the drill rod cavity 17 are connected, the semicircular inner groove 2 and the outer connecting hole 3 are symmetrically distributed about the vertical center line of the titanium alloy rod body 1, the shape and size of the outer part of the semicircular rubber funnel 4 are consistent with the shape and size of the inner part of the semicircular inner groove 2, the outer diameter of the rubber conduit 5 is consistent with the inner diameter of the outer connecting hole 3, the semicircular rubber funnel 4, the rubber conduit 5, and the inner part of the drill rod cavity 17 are connected, the semicircular rubber funnel 4 and the rubber conduit 5 are elastic, and can play an active role in reducing friction during high-speed rotation;

[0029] Specifically, Figure 1 and Figure 3 As shown, the drilling fluid flows in the inner cavity 17 of the drill pipe. When the titanium alloy rod body 1 rotates at a high speed, the drilling fluid is affected by inertia and will escape outward along the semicircular inner groove 2 and the outer connecting hole 3. The semicircular rubber funnel 4 and the rubber conduit 5 can reduce the probability of external liquid backflow while guiding the flow. The overflowed drilling fluid is coated on the outer surface of the titanium alloy rod body 1, forming a liquid friction-reducing barrier between the titanium alloy rod body 1 and the geological rock formation, thereby reducing the surface wear of the titanium alloy rod body 1.

[0030] Embodiment 2: The top of the drill rod inner cavity 17 is fixedly connected with an upper sealing plug 7, a central water inlet 8 is arranged at the middle position of the top of the upper sealing plug 7, a right water inlet 9 is arranged on the right side of the top of the upper sealing plug 7, a left water inlet 10 is arranged on the left side of the top of the upper sealing plug 7, a lower sealing plug 11 is fixedly connected with the bottom of the drill rod inner cavity 17, a right water outlet 12 is arranged on the right side of the bottom of the lower sealing plug 11, a central water outlet 13 is arranged at the middle position of the bottom of the lower sealing plug 11, a left water outlet 14 is arranged on the left side of the bottom of the lower sealing plug 11, a main through pipe 15 is vertically fixedly connected between the central water inlet 8 and the central water outlet 13, and a left water inlet 1 0, a secondary coil 16 is fixedly connected between the right water outlet 12, the central water inlet 8, the right water inlet 9, and the left water inlet 10 penetrate the upper and lower ends of the upper sealing plug 7, the right water outlet 12, the central water outlet 13, and the left water outlet 14 penetrate the upper and lower ends of the lower sealing plug 11, the central water inlet 8, the central water outlet 13, and the main through pipe 15 are connected inside, the left water inlet 10, the right water outlet 12, and the secondary coil 16 are connected inside, the right water inlet 9, the left water outlet 14, and the drill pipe inner cavity 17 are connected inside, the outer wall of the secondary coil 16 and the inner wall of the drill pipe inner cavity 17 are in contact, and the cooling and heat dissipation efficiency is improved by changing the distribution of the fluid channel;

[0031] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, a part of the drilling fluid passes downward quickly through the central water inlet 8, the main through pipe 15, and the central water outlet 13, a part passes downward through the left water inlet 10, the secondary coil 16, and the right water outlet 12, and another part passes downward through the right water inlet 9, the drill pipe cavity 17, and the left water outlet 14, forming three fluid channels with different flow rates inside the titanium alloy rod body 1. The copper secondary coil 16 can guide the temperature of the drill pipe inward, and cool it down through the double fluid inside and outside the drill pipe cavity 17 and the secondary coil 16 to improve the heat dissipation efficiency. The main through pipe 15 can ensure the rapid flow of the drilling fluid.

[0032] Embodiment 3: A reserved groove 18 is provided at the top of the front end of the titanium alloy rod body 1, a sealing plate 19 is fixedly connected to the front end of the reserved groove 18, a circuit board 20 is fixedly connected inside the reserved groove 18, an MCU 21 is installed at the bottom of the right side of the front end of the circuit board 20, a wireless communication module 22 is installed at the top of the right side of the front end of the circuit board 20, a lithium battery 23 is provided at the left side of the front end of the circuit board 20, a depth sensor 24 is fixedly connected to the top of the left side of the circuit board 20, a temperature sensor 25 is fixedly connected to the bottom of the left side of the circuit board 20, the front end of the sealing plate 19 is flush with the front end of the titanium alloy rod body 1, the lithium battery 23, the depth sensor 24, and the temperature sensor 25 are electrically connected, and the drill rod information can be fed back in real time, which is convenient for ground personnel to monitor;

[0033] Specifically, Figure 1 , Figure 4 and Figure 5 As shown, the depth sensor 24 senses the depth of the drill pipe in real time, the temperature sensor 25 feeds back the actual temperature of the drill pipe, and the depth, temperature and other related data are uploaded in real time through the wireless communication module 22, which is convenient for ground staff to monitor. The reserved groove 18 and the sealing plate 19 can protect the circuit board 20 inside to prevent it from being damaged by external forces, and the lithium battery 23 supplies power to electronic components such as the MCU21 and the wireless communication module 22 on the circuit board 20.

[0034] Working principle: When the utility model is in use, firstly, the titanium alloy rod body 1 serves as the drill rod body, which is used to convey drilling fluid and torque. The drilling fluid passes through the inner cavity 17 of the drill rod. When the titanium alloy rod body 1 rotates at high speed, the drilling fluid is affected by inertia and will escape outward along the semicircular inner groove 2 and the outer connecting hole 3. The semicircular rubber funnel 4 and the rubber conduit 5 can reduce the probability of external liquid backflow while guiding the flow. The overflowed drilling fluid is coated on the outer surface of the titanium alloy rod body 1, forming a liquid friction-reducing barrier between the titanium alloy rod body 1 and the geological rock formation, thereby reducing the surface wear of the titanium alloy rod body 1. The drilling fluid is pumped in from top to bottom, part of it passes quickly downward through the central water inlet 8, the main through pipe 15, and the central water outlet 13, part of it passes downward through the left water inlet 10, the secondary coil 16, and the right water outlet 12, and another part passes downward through the right water inlet 9, the drill pipe cavity 17, and the left water outlet 14, forming three fluid channels with different flow rates inside the titanium alloy rod body 1. The copper secondary coil 16 can guide the temperature of the drill pipe inward, and cool it down through the double fluid inside and outside the drill pipe cavity 17 and the secondary coil 16 to improve the heat dissipation efficiency. The main through pipe 15 can ensure the rapid flow of the drilling fluid. As the drill rod is lowered, the depth sensor 24 senses the depth of the drill rod in real time, and the temperature sensor 25 feedbacks the actual temperature of the drill rod. The depth, temperature and other related data are uploaded in real time through the wireless communication module 22, which is convenient for ground staff to monitor. The reserved groove 18 and the sealing plate 19 can protect the circuit board 20 inside to prevent it from being damaged by external forces. The lithium battery 23 supplies power to electronic components such as the MCU21 and the wireless communication module 22 on the circuit board 20.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An inertial high-speed friction drill rod, comprising a titanium alloy rod body (1), characterized in that: The top end of the titanium alloy rod body (1) is fixedly connected to an external thread joint (6), the bottom end of the titanium alloy rod body (1) is provided with an internal thread interface (26), a drill rod inner cavity (17) is vertically provided inside the titanium alloy rod body (1), and a friction reduction component for reducing the friction coefficient by means of inertia is provided inside the titanium alloy rod body (1); The friction reduction assembly comprises a plurality of groups of semicircular inner grooves (2), the plurality of groups of semicircular inner grooves (2) being respectively arranged at the upper and lower ends on the left and right sides of the inner cavity (17) of the drill rod, the upper and lower ends on the left and right sides of the titanium alloy rod body (1) being respectively arranged with three groups of external connecting holes (3), the interior of the semicircular inner groove (2) being glued with a semicircular rubber funnel (4), and the interior of the external connecting hole (3) being arranged with a rubber conduit (5).

2. The inertial high-speed friction drill pipe according to claim 1, characterized in that: The semicircular inner groove (2), the outer communicating hole (3), and the interior of the drill rod inner cavity (17) are connected, and the semicircular inner groove (2) and the outer communicating hole (3) are symmetrically distributed about the vertical center line of the titanium alloy rod body (1).

3. The inertial high-speed friction drill pipe according to claim 1, characterized in that: The shape and size of the outer part of the semicircular rubber funnel (4) are consistent with the shape and size of the inner part of the semicircular inner groove (2), and the outer diameter of the rubber conduit (5) is consistent with the inner diameter of the outer connecting hole (3).

4. The inertial high-speed friction drill pipe according to claim 1, characterized in that: The interiors of the semicircular rubber funnel (4), the rubber conduit (5) and the inner cavity of the drill rod (17) are interconnected, and the semicircular rubber funnel (4) and the rubber conduit (5) are elastic.

5. The inertial high-speed friction drill pipe according to claim 1, characterized in that: An upper sealing plug (7) is fixedly connected to the top of the inner cavity (17) of the drill rod, a central water inlet (8) is arranged at the middle position of the top of the upper sealing plug (7), a right water inlet (9) is arranged on the right side of the top of the upper sealing plug (7), and a left water inlet (10) is arranged on the left side of the top of the upper sealing plug (7), a lower sealing plug (11) is fixedly connected to the bottom of the inner cavity (17) of the drill rod, a right water outlet (12) is arranged on the right side of the bottom of the lower sealing plug (11), a central water outlet (13) is arranged at the middle position of the bottom of the lower sealing plug (11), and a left water outlet (14) is arranged on the left side of the bottom of the lower sealing plug (11), a main through pipe (15) is vertically fixedly connected between the central water inlet (8) and the central water outlet (13), and a secondary coil (16) is fixedly connected between the left water inlet (10) and the right water outlet (12).

6. The inertial high-speed friction drill pipe according to claim 5, characterized in that: The central water inlet (8), the right water inlet (9) and the left water inlet (10) pass through the upper and lower ends of the upper sealing plug (7); the right water outlet (12), the central water outlet (13) and the left water outlet (14) pass through the upper and lower ends of the lower sealing plug (11); the central water inlet (8), the central water outlet (13) and the interior of the main through pipe (15) are connected; the left water inlet (10), the right water outlet (12) and the interior of the secondary coil (16) are connected; the right water inlet (9), the left water outlet (14) and the interior of the drill pipe inner cavity (17) are connected; the outer wall of the secondary coil (16) and the inner wall of the drill pipe inner cavity (17) are in contact with each other.

7. The inertial high-speed friction drill pipe according to claim 1, characterized in that: A reserved groove (18) is provided at the top of the front end of the titanium alloy rod body (1), a sealing plate (19) is fixedly connected to the front end of the reserved groove (18), a circuit board (20) is fixedly connected inside the reserved groove (18), an MCU (21) is installed at the bottom of the right side of the front end of the circuit board (20), a wireless communication module (22) is installed at the top of the right side of the front end of the circuit board (20), a lithium battery (23) is provided at the left side of the front end of the circuit board (20), a depth sensor (24) is fixedly connected to the top of the left side of the circuit board (20), and a temperature sensor (25) is fixedly connected to the bottom of the left side of the circuit board (20).

8. The inertial high-speed friction drill pipe according to claim 7, characterized in that: The front end of the sealing plate (19) is flush with the front end of the titanium alloy rod body (1), and the lithium battery (23), the depth sensor (24), and the temperature sensor (25) are electrically connected.

Images