Non-magnetic drill collar capable of preventing drill rod from being broken

Abstract

The utility model relates to the technical field of non-magnetic drill collars, and discloses a non-magnetic drill collar capable of preventing a drill rod from being broken, which comprises a non-magnetic drill collar body, an anti-breaking mechanism is arranged on the outer wall of the non-magnetic drill collar body, the anti-breaking mechanism comprises a protective shell, and the outer wall of the non-magnetic drill collar is movably connected with the protective shell. The top and the bottom of the protective shell are fixedly connected with fixing rods, the top ends of the fixing rods are fixedly connected with lower clamping hoops, and the inner walls of the lower clamping hoops are movably connected with non-magnetic drill collar bodies. According to the non-magnetic drill collar, through the arrangement of the anti-breaking mechanism, the effect of preventing the non-magnetic drill collar from being broken in the working process can be achieved, in the using process, the protective shell is installed on the outer wall of the non-magnetic drill collar to increase the strength of the non-magnetic drill collar, and the situation that the service life of the non-magnetic drill collar is possibly short due to the fact that a drill rod cannot be prevented from being broken can be avoided; the non-magnetic drill collar cannot work normally due to poor quality, and the strength and the service life of the non-magnetic drill collar are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of non-magnetic drill collars, in particular to a non-magnetic drill collar for preventing drill pipes from breaking. Background Art

[0002] A non-magnetic drill collar is a low-carbon high-chromium manganese alloy steel drill collar, which is refined through strict chemical composition ratio and has good low magnetic permeability and high-strength mechanical properties.

[0003] A sand control and sticking prevention petroleum non-magnetic drill collar with the patent number CN 214403469 U for wellbore includes a drill collar body, a convex nozzle and a docking drill collar. A vertical shaft is slidably connected inside the docking drill collar. Four groups of side connection shell sleeves distributed in a ring are fixedly connected to the inner end face of the docking drill collar. A butt rod is slidably connected inside the four groups of side connection shell sleeves. A baffle is fixedly connected to one end of the butt rod located inside the side connection shell sleeve. An extrusion spring is embedded inside the side connection shell sleeve. In the utility model, under the action of the extrusion spring, the free end of the butt rod always keeps in close contact with the bottom outer end face of the vertical shaft, so that the sealing cover fits in the docking groove. At the same time, the upturned sediment will push up the sealing cover, so that the sealing cover keeps in close contact with the docking drill collar, thereby preventing sediment from accumulating in the equipment inside the drill collar body and affecting the normal operation of related equipment. This non-magnetic drill collar solves the problem that during the process of lowering the drill collar, the upturned mud is easy to push up the equipment installed in the non-magnetic drill collar, causing the equipment to separate from the non-magnetic drill collar;

[0004] Although the above-mentioned utility model patent solves the problem that during the process of lowering the non-magnetic drill collar, the upturned mud is easy to push up the equipment installed in the non-magnetic drill collar, causing the equipment to separate from the non-magnetic drill collar, however, most of the currently used non-magnetic drill collars cannot prevent drill pipes from breaking. During use, when the non-magnetic drill collar drills underground, due to high-intensity work, the drill pipe may break. If the drill pipe cannot be prevented from breaking, it may lead to a short service life and poor quality of the non-magnetic drill collar, resulting in the situation that the non-magnetic drill collar cannot work properly, making the practicability of the non-magnetic drill collar poor, and it is not convenient to install the non-magnetic drill collar on the equipment or install the drill bit on the non-magnetic drill collar. During use, if the installation process is more cumbersome, it may lead to the situation that professional personnel or a long time is required for installation, making the convenience and installation efficiency of the non-magnetic drill collar poor. Summary of the Invention

[0005] The utility model provides a non-magnetic drill collar for preventing drill pipes from breaking, which solves the problem of a non-magnetic drill collar for preventing drill pipes from breaking in related technologies.

[0006] The technical solution of the utility model is as follows:

[0007] A non-magnetic drill collar for preventing drill pipe breakage, comprising a non-magnetic drill collar body, wherein an anti-breakage mechanism is arranged on the outer wall of the non-magnetic drill collar body, and the anti-breakage mechanism includes a protective shell;

[0008] The outer wall of the non-magnetic drill collar is movably connected with a protective shell. Fixed rods are fixedly connected to both the top and the bottom of the protective shell. The top ends of the fixed rods are fixedly connected with lower clamps, and the inner wall of the lower clamps is movably connected with the non-magnetic drill collar body.

[0009] Further, a rotating shaft is movably connected to the inner wall of the lower clamp. A through hole is formed in one side of the lower clamp. The shape and size of the through hole match those of the rotating shaft, and the lower clamp is movably connected with the rotating shaft through the through hole.

[0010] Further, rotating plates are fixedly connected to both ends of the rotating shaft. A connecting rod is fixedly connected to one side of the rotating plate. One end of the connecting rod is fixedly connected with an upper clamp, and the inner wall of the upper clamp is movably connected with the non-magnetic drill collar body.

[0011] Further, mounting blocks are fixedly connected to one side of both the upper clamp and the lower clamp. Mounting holes are formed in one side of the mounting blocks.

[0012] Further, a first bolt is movably connected to the inner wall of the mounting hole. The shape and size of the first bolt match those of the mounting hole.

[0013] Further, a first nut is movably connected to the outer wall of the first bolt. The shape and size of the first nut match those of the first bolt.

[0014] Further, mounting and fixing mechanisms are arranged at both ends of the non-magnetic drill collar body. The mounting and fixing mechanisms include mounting plates. One end of the non-magnetic drill collar body is fixedly connected with a mounting plate. A second bolt is movably connected to the inner wall of the mounting plate. A through hole is formed in one side of the mounting plate. The shape and size of the through hole match those of the second bolt, and the mounting plate is movably connected with the second bolt through the through hole.

[0015] Further, a second nut is movably connected to the outer wall of the second bolt. The shape and size of the second bolt match those of the second nut.

[0016] The working principle and beneficial effects of the present utility model are:

[0017] In the present utility model, through the setting of the anti-breaking mechanism, the function of preventing the non-magnetic drill collar from breaking during work can be achieved. During the use process, by installing the protective shell on the outer wall of the non-magnetic drill collar, the strength of the non-magnetic drill collar can be increased, and it can be avoided that the service life of the non-magnetic drill collar may be short and the quality may be poor due to the inability to prevent the drill pipe from breaking, resulting in the situation that the non-magnetic drill collar cannot work properly, ensuring the strength and service life of the non-magnetic drill collar.

[0018] In the present utility model, through the setting of the installation and fixing mechanism, the functions of facilitating the installation and fixing of the non-magnetic drill collar on the equipment and facilitating the installation of the drill bit on the non-magnetic drill collar can be achieved. During the use process, the drill bit is rotated onto the non-magnetic drill collar through threads, and the non-magnetic drill collar is installed and fixed on the equipment through the cooperation of the second bolt and the second nut, which can avoid the situation that it requires professional personnel or a long time to install the non-magnetic drill collar due to the cumbersome installation process, ensuring the convenience of installing and fixing the non-magnetic drill collar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0020] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of the anti-breaking mechanism of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the connection between the fixing rod and the protective shell of the present utility model;

[0023] Figure 4 is a structural schematic diagram of the connection between the rotating shaft and the rotating plate of the present utility model;

[0024] Figure 5 is a structural schematic diagram of the installation and fixing mechanism of the present utility model;

[0025] Figure 6 is a structural schematic diagram of the thread structure formed inside the non-magnetic drill collar body of the present utility model.

[0026] In the figure:

[0027] 1. Non-magnetic drill collar body;

[0028] 2. Anti-breaking mechanism; 201. Protective shell; 202. Fixing rod; 203. Lower clamp; 204. Rotating shaft; 205. Rotating plate; 206. Connecting rod; 207. Upper clamp; 208. Installation block; 209. Installation hole; 210. First bolt; 211. First nut;

[0029] 3. Mounting and fixing mechanism; 301. Mounting plate; 302. Second bolt; 303. Second nut; 304. Thread. Detailed implementation mode

[0030] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Embodiment

[0031] As Figure 1 shown, a non-magnetic drill collar for preventing drill pipe breakage includes a non-magnetic drill collar body 1, a breakage prevention mechanism 2 is arranged on the outer wall of the non-magnetic drill collar body 1, and mounting and fixing mechanisms 3 are arranged at both ends of the non-magnetic drill collar body 1.

[0032] In this embodiment, when the non-magnetic drill collar body 1 needs to be used, first, it is necessary to prevent the non-magnetic drill collar body 1 from breaking during work. The breakage prevention mechanism 2 is set to prevent the non-magnetic drill collar body 1 from breaking during work. Then, the drill bit needs to be mounted and fixed on the non-magnetic drill collar body 1, and the non-magnetic drill collar body 1 is mounted and fixed on the equipment. The mounting and fixing mechanism 3 is used for mounting. Then, the non-magnetic drill collar body 1 can be used for work to complete the work. Embodiment

[0033] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes an anti-breaking mechanism 2, which includes a protective shell 201. The outer wall of the non-magnetic drill collar body 1 is movably connected to the protective shell 201. The protective shell 201 is made of a hard material. The top and bottom of the protective shell 201 are fixedly connected to a fixing rod 202. The top of the fixing rod 202 is fixedly connected to a lower clamp 203. The inner wall of the lower clamp 203 is movably connected to the non-magnetic drill collar body 1. The inner wall of the lower clamp 203 is movably connected to a rotating shaft 204. A through hole is provided on one side of the lower clamp 203. The shape and size of the through hole match the shape and size of the rotating shaft 204. The lower clamp 203 is movably connected to the rotating shaft 204 through the through hole. Both ends of the shaft 204 are fixedly connected to a rotating plate 205, one side of the rotating plate 205 is fixedly connected to a connecting rod 206, one end of the connecting rod 206 is fixedly connected to an upper clamp 207, the inner wall of the upper clamp 207 is movably connected to the non-magnetic drill collar body 1, the upper clamp 207 and one side of the lower clamp 203 are fixedly connected to a mounting block 208, a mounting hole 209 is provided on one side of the mounting block 208, the inner wall of the mounting hole 209 is movably connected to a first bolt 210, the shape and size of the first bolt 210 match the shape and size of the mounting hole 209, the outer wall of the first bolt 210 is movably connected to a first nut 211, the shape and size of the first nut 211 match the shape and size of the first bolt 210.

[0034] In this embodiment, when the non-magnetic drill collar body 1 is needed, it is first necessary to prevent the non-magnetic drill collar body 1 from breaking during operation. At this time, the protective shell 201 is put into the outer wall of the non-magnetic drill collar body 1, and then the rotating plate 205 is bent. The rotating plate 205 rotates on the inner wall of the lower clamp 203 through the rotating shaft 204, so that the rotating plate 205 can be bent. The rotating plate 205 drives the connecting rod 206 to start rotating, and the connecting rod 206 drives the upper clamp 207 to start rotating, and the upper clamp 207 is rotated. Move until the two mounting blocks 208 fit together, then pass the first bolt 210 through the mounting holes 209 opened on the two mounting blocks 208, and then rotate the first nut 211 and insert it into the first bolt 210, so as to install and fix the upper clamp 207 and the lower clamp 203, thereby fixing the protective shell 201 to the outer wall of the non-magnetic drill collar body 1, enhancing the strength of the outside of the non-magnetic drill collar body 1, and preventing the non-magnetic drill collar body 1 from being broken in subsequent work, thereby completing the anti-breakage work.

[0035] like Figure 1 、 Figure 2 ,and Figure 3As shown in the figure, based on the same concept as in the above-mentioned Embodiment 1, this embodiment also proposes an installation and fixing mechanism 3. The installation and fixing mechanism 3 includes a mounting plate 301. One end of the non-magnetic drill collar body 1 is fixedly connected to the mounting plate 301. The inner wall of the mounting plate 301 is movably connected to a second bolt 302. A through hole is formed on one side of the mounting plate 301. The shape and size of the through hole match those of the second bolt 302, and the mounting plate 301 is movably connected to the second bolt 302 through the through hole. The outer wall of the second bolt 302 is movably connected to a second nut 303. The shape and size of the second bolt 302 match those of the second nut 303.

[0036] In this embodiment, when it is necessary to install and fix the drill bit on the non-magnetic drill collar body 1 and install and fix the non-magnetic drill collar body 1 on the equipment, at this time, the drill bit is rotated at the threaded end 304 of the non-magnetic drill collar body 1. Through the cooperation of the threads 304 on the drill bit and the threads 304 inside the non-magnetic drill collar body 1, the drill bit is rotated into the interior of the non-magnetic drill collar body 1 for installation and fixing. Then, the mounting plate 301 on the non-magnetic drill collar body 1 is closely attached to the mounting plate 301 on the equipment. Then, the through holes formed on the two mounting plates 301 are aligned. Then, the second bolt 302 is inserted into the through hole on the mounting plate 301. Then, the second nut 303 is rotated and inserted into the second bolt 302, so as to install and fix the two mounting plates 301, thereby installing and fixing the non-magnetic drill collar body 1 and the equipment, and thus completing the installation and fixing work.

[0037] The working principle of the present invention is as follows: when the non-magnetic drill collar body 1 is needed, it is first necessary to prevent the non-magnetic drill collar body 1 from breaking during operation. At this time, the protective shell 201 is inserted into the outer wall of the non-magnetic drill collar body 1, and then the rotating plate 205 is bent. The rotating plate 205 rotates on the inner wall of the lower clamp 203 through the rotating shaft 204, so that the rotating plate 205 can be bent, and the rotating plate 205 drives the connecting rod 206 to start rotating, and the connecting rod 206 drives the upper clamp 207 to open. The upper clamp 207 is rotated to fit the two mounting blocks 208, and the first bolt 210 is passed through the mounting holes 209 provided on the two mounting blocks 208. The first nut 211 is then rotated and inserted into the first bolt 210, thereby fixing the upper clamp 207 and the lower clamp 203, thereby fixing the protective shell 201 to the outer wall of the non-magnetic drill collar body 1, thereby enhancing the strength of the outer surface of the non-magnetic drill collar body 1 and preventing the non-magnetic drill collar body 1 from being damaged in the subsequent operation. The drill bit is broken during the work, thereby completing the anti-breakage work, and then the drill bit needs to be installed and fixed on the non-magnetic drill collar body 1, and the non-magnetic drill collar body 1 is installed and fixed on the equipment. At this time, the drill bit is rotated on the end of the non-magnetic drill collar body 1 with the thread 304, and the thread 304 on the drill bit cooperates with the thread 304 in the non-magnetic drill collar body 1 to rotate the drill bit into the interior of the non-magnetic drill collar body 1 for installation and fixation. Then, the mounting plate 301 on the non-magnetic drill collar body 1 is tightly attached to the mounting plate 301 on the equipment, and then the through holes opened on the two mounting plates 301 are aligned, and then the second bolt 302 is inserted into the through hole on the mounting plate 301, and then the second nut 303 is rotated and inserted into the second bolt 302, so that the two mounting plates 301 are installed and fixed, so that the non-magnetic drill collar body 1 is installed and fixed to the equipment, thereby completing the installation and fixing work, and then the non-magnetic drill collar body 1 can be used to work, thereby completing the work.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A non-magnetic drill collar for preventing drill pipe breakage, characterized in that , including a non-magnetic drill collar body (1), an anti-breaking mechanism (2) is arranged on the outer wall of the non-magnetic drill collar body (1), and the anti-breaking mechanism (2) includes a protective shell (201); The protective shell (201) is movably connected to the outer wall of the non-magnetic drill collar body (1), fixing rods (202) are fixedly connected to both the top and the bottom of the protective shell (201), a lower clamp (203) is fixedly connected to the top end of the fixing rod (202), and the inner wall of the lower clamp (203) is movably connected to the non-magnetic drill collar body (1).

2. The non-magnetic drill collar for preventing drill pipe breakage according to claim 1, wherein: A rotating shaft (204) is movably connected to the inner wall of the lower clamp (203), a through hole is formed in one side of the lower clamp (203), the shape and size of the through hole match those of the rotating shaft (204), and the lower clamp (203) is movably connected to the rotating shaft (204) through the through hole.

3. The non-magnetic drill collar for preventing drill pipe breakage according to claim 2, wherein: Rotating plates (205) are fixedly connected to both ends of the rotating shaft (204), a connecting rod (206) is fixedly connected to one side of the rotating plate (205), an upper clamp (207) is fixedly connected to one end of the connecting rod (206), and the inner wall of the upper clamp (207) is movably connected to the non-magnetic drill collar body (1).

4. A non-magnetic drill collar for preventing drill pipe breakage according to claim 3, characterized in that: Mounting blocks (208) are fixedly connected to one side of both the upper clamp (207) and the lower clamp (203), and mounting holes (209) are formed in one side of the mounting blocks (208).

5. The non-magnetic drill collar for preventing drill pipe breakage according to claim 4, characterized in that: A first bolt (210) is movably connected to the inner wall of the mounting hole (209), and the shape and size of the first bolt (210) match those of the mounting hole (209).

6. A non-magnetic drill collar for preventing drill pipe breakage according to claim 5, characterized in that: A first nut (211) is movably connected to the outer wall of the first bolt (210), and the shape and size of the first nut (211) match those of the first bolt (210).

7. A non-magnetic drill collar for preventing drill pipe breakage according to claim 1, characterized in that: Mounting and fixing mechanisms (3) are arranged at both ends of the non-magnetic drill collar body (1), the mounting and fixing mechanisms (3) include mounting plates (301), a mounting plate (301) is fixedly connected to one end of the non-magnetic drill collar body (1), a second bolt (302) is movably connected to the inner wall of the mounting plate (301), a through hole is formed in one side of the mounting plate (301), the shape and size of the through hole match those of the second bolt (302), and the mounting plate (301) is movably connected to the second bolt (302) through the through hole.

8. A non-magnetic drill collar for preventing drill pipe breakage according to claim 7, characterized in that: A second nut (303) is movably connected to the outer wall of the second bolt (302), and the shape and size of the second bolt (302) match those of the second nut (303).

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