Wear-resistant three-edged drill collar for petroleum drilling

Abstract

The utility model relates to the technical field of drilling equipment, and provides a wear-resistant three-edged drill collar for petroleum drilling, which comprises a guide cylinder, a sliding groove is arranged in the middle of the inside of the guide cylinder, and two limit grooves which are opposite up and down are arranged on the inner wall of the guide cylinder and are respectively positioned at the upper end and the lower end of the sliding groove. A motor is fixedly connected to the left end of the inner wall of the guide cylinder, a screw rod is arranged on the inner wall of the guide cylinder, the left side end of the screw rod is fixedly connected to the driving end of the motor, a threaded sleeve is in threaded connection to the outer side of the screw rod, and a drill collar connecting pipe is fixedly connected to the right side of the threaded sleeve. According to the utility model, through the cooperation of the guide cylinder, the motor, the screw rod, the threaded sleeve, the sliding groove, the connecting block and the limiting groove, the effect of adjusting the position of the drill collar connecting pipe is realized, and the drill collar connecting pipe can be adjusted according to the actual drilling requirements and the requirements of workers, so that the drill collar connecting pipe adapts to different well depths and stratum conditions; and the applicability of the drill collar is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a wear-resistant triangular drill collar for oil drilling. Background Art

[0002] The drill collar is usually installed at the bottom of the drill string and is one of the main structures in the entire drilling tool structure. Its main function is to apply pressure to the drill bit at its bottom, so that the drill bit can drill faster and more smoothly.

[0003] After searching, the existing patent (Announcement No.: CN218759765U) discloses a wear-resistant triangular drill collar for oil drilling, including a connecting block, a square fixing box, a drill collar connecting pipe and a quick disassembly assembly, wherein the square fixing box is arranged at the top of the connecting block, the drill collar connecting pipe is arranged at the top of the connecting block and is located outside the square fixing box, and the quick disassembly assembly is arranged inside the square fixing box; the quick disassembly assembly includes a push rod, a baffle, a first trapezoidal block, a spring, a second trapezoidal block and a push rod; the top of the connecting block is fixedly connected with a square fixing box, the top of the square fixing box is symmetrically slidably connected with four push rods, and the top of the push rod is fixedly connected with a baffle. The beneficial effect of the utility model is that by setting a quick disassembly assembly, the working purpose of quickly replacing the drill tool at the bottom of the drill collar can be achieved, thereby greatly improving the working speed of replacing the drill tool of the drill collar, improving the working efficiency, and greatly improving the operation quality and use efficiency compared with the traditional device.

[0004] However, the above solution does not have the function of adjusting the position of the drill collar connecting pipe, and cannot adapt to different well depths and formation conditions according to actual drilling requirements, so its applicability is low.

[0005] In view of this, the utility model provides a wear-resistant triangular drill collar for oil drilling. Utility Model Content

[0006] The utility model provides a wear-resistant triangular drill collar for oil drilling, which solves the problem that the position of the drill collar connecting pipe cannot be adjusted in the related technology.

[0007] The technical solution of the utility model is as follows: a wear-resistant triangular drill collar for oil drilling, comprising a guide cylinder, a slide groove is opened in the middle part of the guide cylinder, and the inner wall of the guide cylinder is opened with upper and lower opposite limit grooves, and the two limit grooves are respectively located at the upper and lower ends of the slide groove, and the left end of the inner wall of the guide cylinder is fixedly connected to a motor, and the inner wall of the guide cylinder is provided with a screw, and the left end of the screw is fixedly connected to the motor driving end, and the outer side of the screw is threadedly connected to a threaded sleeve, and the right side of the threaded sleeve is fixedly connected to a drill collar connecting pipe.

[0008] Preferably, the threaded sleeve is slidably connected inside the slide groove, and the threaded sleeve and the slide groove are correspondingly arranged.

[0009] Preferably, a connecting block opposite to each other up and down is fixedly connected to the left end of the outer side of the threaded sleeve, and the connecting block is slidably connected inside the limiting groove, and the connecting block and the limiting groove are correspondingly arranged.

[0010] Preferably, a sleeve is slidably connected to the outer side of the drill collar connecting pipe, a spring 1 is fixedly connected to the outer side of the drill collar connecting pipe, and the other end of the spring 1 is fixedly connected to the inner wall of the sleeve.

[0011] Preferably, the right end of the inner wall of the drill collar connecting tube is provided with evenly distributed mounting grooves, and balls are installed inside the mounting grooves.

[0012] Preferably, a telescopic rod is fixedly connected to the left end of the inner wall of the drill collar connecting tube, a connecting plate is fixedly connected to the telescopic end of the telescopic rod, and a second spring is sleeved on the outer side of the telescopic rod.

[0013] Preferably, the left side end of the second spring is fixedly connected to the left end of the inner wall of the drill collar connecting tube, and the right side end of the second spring is fixedly connected to the left side of the connecting plate.

[0014] Preferably, a mounting tube is provided at the right end of the drill collar connecting tube, a connecting column is fixedly connected to the left side of the mounting tube, and a mounting platform is fixedly connected to the left side of the connecting column.

[0015] Preferably, left and right limiting rings are fixedly connected to the outer side of the connecting column, and the two limiting rings are respectively located at the left and right ends of the ball.

[0016] Preferably, a drill bit is installed on the right side of the installation cylinder.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. In the utility model, the position adjustment effect of the drill collar connecting pipe is achieved through the cooperation of the guide cylinder, the motor, the screw, the threaded sleeve, the slide groove, the connecting block and the limit groove. It can be adjusted according to the actual drilling needs and the needs of the staff, so as to adapt to different well depths and formation conditions, further improve the applicability of the drill collar, and do not require manual operation by the staff, thereby reducing the physical exertion of the staff.

[0019] 2. In the utility model, the rapid installation and disassembly effect of the drill bit is achieved through the cooperation of the sleeve tube, spring one, mounting groove, ball, telescopic rod, connecting plate, spring two, mounting tube, connecting column, limit ring and mounting platform. When the drill bit needs to be inspected and replaced, it is more convenient for maintenance personnel to operate, which greatly improves the speed of replacing the drill bit and further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is an isometric stereoscopic schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the sleeve pipe of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the drill collar connecting pipe of the utility model;

[0024] Figure 4 It is a schematic diagram of the internal structure of the guide cylinder of the utility model.

[0025] In the figure: 1. guide cylinder; 2. motor; 3. screw; 4. threaded sleeve; 5. slide groove; 6. connecting block; 7. limit groove; 8. drill collar connecting pipe; 9. sleeve pipe; 10. spring one; 11. mounting groove; 12. ball bearing; 13. telescopic rod; 14. connecting plate; 15. spring two; 16. mounting cylinder; 17. connecting column; 18. limit ring; 19. mounting table; 20. drill bit. DETAILED DESCRIPTION

[0026] The following will be combined with 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 of 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.

[0027] Example 1

[0028] The preferred embodiment of the wear-resistant triangular drill collar for oil drilling provided by the utility model is as follows: Figures 1 to 4As shown: A wear-resistant triangular drill collar for oil drilling, including a guide cylinder 1, a slide groove 5 is opened in the middle of the guide cylinder 1, and the inner wall of the guide cylinder 1 is opened with upper and lower relative limit grooves 7, the two limit grooves 7 are respectively located at the upper and lower ends of the slide groove 5, and the limit grooves 7 and the slide groove 5 are in a state of mutual communication. The left end of the inner wall of the guide cylinder 1 is fixedly connected to a motor 2 in order to further improve the stability of the motor 2. The inner wall of the guide cylinder 1 is provided with a screw 3, and the left end of the screw 3 is fixedly connected to the driving end of the motor 2, and the screw 3 can be driven by the motor 2 to rotate The outer side of the screw rod 3 is threadedly connected with a threaded sleeve 4, which can be driven to move by the screw rod 3. The right side of the threaded sleeve 4 is fixedly connected with a drill collar connecting pipe 8, which further drives the drill collar connecting pipe 8 to move, thereby realizing the position adjustment effect of the drill collar connecting pipe 8, which can be adjusted according to the actual drilling needs and the needs of the staff, so as to adapt to different well depths and formation conditions, further improving the applicability of the drill collar, and eliminating the need for manual operation by the staff, reducing the physical exertion of the staff.

[0029] In this embodiment, the threaded sleeve 4 is slidably connected inside the slide groove 5 in order to further improve the stability of the threaded sleeve 4 during movement. The threaded sleeve 4 and the slide groove 5 are correspondingly arranged.

[0030] In this embodiment, a connecting block 6 opposite to each other is fixedly connected to the left outer end of the threaded sleeve 4, and the threaded sleeve 4 fixes the connecting block 6. The connecting block 6 is slidably connected inside the limiting groove 7. The connecting block 6 and the limiting groove 7 are correspondingly arranged. The threaded sleeve 4 moves and thus drives the connecting block 6 to slide inside the limiting groove 7, and the connecting block 6 is limited by the limiting groove 7, which further limits the threaded sleeve 4 to prevent the threaded sleeve 4 from deviating during the movement.

[0031] Example 2

[0032] On the basis of Example 1, the preferred embodiment of the wear-resistant triangular drill collar for oil drilling provided by the utility model is as follows Figures 1 to 4 As shown: a sleeve tube 9 is slidably connected to the outer side of the drill collar connecting tube 8, the middle part of the inner wall of the sleeve tube 9 is arranged in a frustum shape, a spring 10 is fixedly connected to the outer side of the drill collar connecting tube 8, and the other end of the spring 10 is fixedly connected to the inner wall of the sleeve tube 9, in order to further improve the stability of the spring 10.

[0033] In this embodiment, the right end of the inner wall of the drill collar connecting tube 8 is provided with evenly distributed installation grooves 11, and a ball 12 is installed inside the installation groove 11. The installation groove 11 is arranged in a frustum shape, and the outer diameter of the installation groove 11 is larger than the inner diameter, thereby preventing the ball 12 from falling off from the inside of the installation groove 11 and falling into the drill collar connecting tube 8, thereby further improving the stability of the device.

[0034] In this embodiment, a telescopic rod 13 is fixedly connected to the left end of the inner wall of the drill collar connecting tube 8, and the drill collar connecting tube 8 fixes the telescopic rod 13. The telescopic end of the telescopic rod 13 is fixedly connected to a connecting plate 14, and the telescopic rod 13 fixes the connecting plate 14. A spring 15 is sleeved on the outer side of the telescopic rod 13.

[0035] In this embodiment, the left end of the second spring 15 is fixedly connected to the left end of the inner wall of the drill collar connecting tube 8, and the right end of the second spring 15 is fixedly connected to the left side of the connecting plate 14, in order to further improve the stability of the second spring 15.

[0036] In this embodiment, a mounting tube 16 is provided at the right end of the drill collar connecting tube 8, and a connecting column 17 is fixedly connected to the left side of the mounting tube 16, and the mounting tube 16 fixes the connecting column 17, and a mounting platform 19 is fixedly connected to the left side of the connecting column 17, and the connecting column 17 fixes the mounting platform 19.

[0037] In this embodiment, the outer side of the connecting column 17 is fixedly connected with left and right opposite limiting rings 18 , and the connecting column 17 fixes the limiting rings 18 . The two limiting rings 18 are respectively located at the left and right ends of the ball 12 , and the two limiting rings 18 are engaged with the ball 12 .

[0038] In this embodiment, a drill bit 20 is installed on the right side of the installation tube 16 .

[0039] The working principle and use process of the utility model are as follows: first, when the drill bit 20 needs to be installed, the sleeve tube 9 is pushed to the left, thereby driving the sleeve tube 9 to slide on the outside of the drill collar connecting tube 8, and the spring 10 is forced to shrink. At this time, the installation tube 16 is pushed into the inside of the drill collar connecting tube 8, and the movement of the installation tube 16 drives the connecting column 17 to move, and then drives the limit ring 18 to move. Since the installation groove 11 is arranged in a frustum shape, the protruding part of the limit ring 18 at the left end contacts the ball 12, which drives the ball 12 to move outward to a certain extent, and at the same time, the limit ring 18 continues to move. The connecting column 17 moves inward, and the ball 12 is reset. The connecting column 17 drives the mounting platform 19 to move while moving, so that the mounting platform 19 contacts the connecting plate 14, and then drives the connecting plate 14 to move inward. At the same time, the telescopic rod 13 contracts, and the spring 15 is forced to contract. At this time, the sleeve tube 9 is released, and the spring 10 rebounds by its own elastic force, thereby driving the sleeve tube 9 to reset. The ball 12 can be limited by the reset of the sleeve tube 9, so that the ball 12 is engaged with the two limiting rings 18, and the installation of the drill bit 20 can be completed. The spring 15 is reset by its own elastic force. The screw 3 is rotated by the motor 2 to rotate, and the threaded sleeve 4 is further driven to slide in the groove 5, and the threaded sleeve 4 is driven to slide in the groove 5, and the screw 3 is driven to rotate, and the threaded sleeve 4 is driven to slide in the groove 5 ... The movable drill collar connecting pipe 8 moves, thereby realizing the position adjustment effect of the drill collar connecting pipe 8, and it can be adjusted according to the actual drilling needs and the needs of the staff, so as to adapt to different well depths and formation conditions, further improving the applicability of the drill collar, and no manual operation is required by the staff, which reduces the physical exertion of the staff, and the threaded sleeve 4 drives the connecting block 6 to slide inside the limiting groove 7 during the movement, and limits the connecting block 6 through the limiting groove 7, further limits the threaded sleeve 4, prevents the threaded sleeve 4 from deviating during the movement, and further improves its stability.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant triangular drill collar for oil drilling, comprising a guide tube (1), characterized in that: A slide groove (5) is provided in the middle of the guide cylinder (1), and upper and lower opposite limit grooves (7) are provided on the inner wall of the guide cylinder (1), and the two limit grooves (7) are respectively located at the upper and lower ends of the slide groove (5). The left end of the inner wall of the guide cylinder (1) is fixedly connected to the motor (2), and the inner wall of the guide cylinder (1) is provided with a screw rod (3), and the left end of the screw rod (3) is fixedly connected to the driving end of the motor (2). The outer side of the screw rod (3) is threadedly connected to a threaded sleeve (4), and the right side of the threaded sleeve (4) is fixedly connected to a drill collar connecting pipe (8).

2. A wear-resistant triangular drill collar for oil drilling according to claim 1, characterized in that: The threaded sleeve (4) is slidably connected inside the slide groove (5), and the threaded sleeve (4) and the slide groove (5) are arranged correspondingly.

3. A wear-resistant triangular drill collar for oil drilling according to claim 1, characterized in that: A connecting block (6) opposite to each other is fixedly connected to the left outer end of the threaded sleeve (4), and the connecting block (6) is slidably connected inside the limiting groove (7). The connecting block (6) and the limiting groove (7) are arranged correspondingly.

4. A wear-resistant triangular drill collar for oil drilling according to claim 1, characterized in that: The outer side of the drill collar connecting tube (8) is slidably connected to a sleeve tube (9), the outer side of the drill collar connecting tube (8) is fixedly connected to a spring 1 (10), and the other end of the spring 1 (10) is fixedly connected to the inner wall of the sleeve tube (9).

5. A wear-resistant triangular drill collar for oil drilling according to claim 4, characterized in that: The right end of the inner wall of the drill collar connecting pipe (8) is provided with evenly distributed mounting grooves (11), and a ball (12) is installed inside the mounting groove (11).

6. A wear-resistant triangular drill collar for oil drilling according to claim 4, characterized in that: A telescopic rod (13) is fixedly connected to the left end of the inner wall of the drill collar connecting tube (8), a connecting plate (14) is fixedly connected to the telescopic end of the telescopic rod (13), and a second spring (15) is sleeved on the outer side of the telescopic rod (13).

7. A wear-resistant triangular drill collar for oil drilling according to claim 6, characterized in that: The left end of the second spring (15) is fixedly connected to the left end of the inner wall of the drill collar connecting pipe (8), and the right end of the second spring (15) is fixedly connected to the left side of the connecting plate (14).

8. A wear-resistant triangular drill collar for oil drilling according to claim 4, characterized in that: The right end of the drill collar connecting pipe (8) is provided with a mounting tube (16), the left side of the mounting tube (16) is fixedly connected to a connecting column (17), and the left side of the connecting column (17) is fixedly connected to a mounting platform (19).

9. A wear-resistant triangular drill collar for oil drilling according to claim 8, characterized in that: The outer side of the connecting column (17) is fixedly connected with left and right opposite limiting rings (18), and the two limiting rings (18) are respectively located at the left and right ends of the ball (12).

10. The wear-resistant triangular drill collar for oil drilling according to claim 8, characterized in that: A drill bit (20) is installed on the right side of the installation cylinder (16).

Images