Rotary steerable drilling tool biasing unit device

Abstract

The utility model discloses a rotary steerable drilling tool bias unit device, which relates to the technical field of drilling tools, and comprises a drill rod, a stable guider is arranged outside the drill rod, a centralizer is detachably connected to the outer surface of one end of the stable guider, a drill bit is detachably connected to the outer surface of one end of the drill rod, and the centralizer is detachably connected to the outer surface of the other end of the drill rod. A trimming box, an adjuster and an angle sensor are arranged on the outer wall of the stable guider, the trimming box is located above the adjuster, the adjuster is located above the angle sensor, an auxiliary supporting ring is arranged in the middle of the stable guider, and an ejector rod is arranged on the outer wall of the auxiliary supporting ring. According to the offset unit device of the rotary steering drilling tool, the arranged auxiliary supporting ring can achieve the auxiliary supporting effect on the drill rod in the using process, the stress area of the drill rod can be increased when a drill bit is guided, pressure generated in the guiding process can be dispersed, the drill rod can be prevented from being damaged after being used for a long time, and the service life of the drill rod can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a rotary steering drilling tool offset unit device. Background Art

[0002] The rotary steerable drilling system is a steerable drilling system that performs the steering function in real time while the drill string is rotating during drilling. The rotary steerable drilling system can integrate geometric steering and geological steering functions, so that directional drilling can be geometrically steered according to engineering parameters and geologically steered according to geological parameters. According to the real-time monitored downhole conditions, the drill bit is guided to drill at the best position in the reservoir. The rotary steerable drilling system technology is the core technology of modern directional drilling technology. The existing rotary steerable drilling tools can be divided into two types: push-type and pointing type according to different steering methods, but the existing pointing type has certain inconveniences when used.

[0003] A mechanical pointing rotary steerable drilling tool is disclosed in the Chinese utility model patent application number: CN201922185259.9. The mechanical pointing rotary steerable drilling tool has the characteristics of low cost, stable operation and easy maintenance. The angle of the middle rod is switched by changing the flow rate of the drilling fluid, thereby changing the drilling angle, realizing mechanized control, without the need to install additional electronic control equipment, saving production costs, and the mechanical structure is not easily affected by high temperature, the operation is very stable, and each component is easy to repair or replace, easy to maintain, solving the problems of high cost, easy failure and difficult maintenance of the existing electronically controlled rotary steerable tools, and meeting the needs of drilling work. However, when the rotary steerable drilling tool changes the angle of the drill bit, the force point of the middle rod is relatively concentrated. When adjusting the guide for a long time, the force point of the middle rod is easily damaged, which is easy to affect the service life. In addition, when the rotary steerable drilling tool is drilling, the inner wall of the well cannot be leveled, which is easy to affect the subsequent work progress. For this reason, we propose a rotary steerable drilling tool offset unit device. Utility Model Content

[0004] The main purpose of the utility model is to provide a rotary steering drilling tool offset unit device, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a rotary directional drilling tool offset unit device, including a drill rod, a stabilizing guide is arranged on the outside of the drill rod, a stabilizer is detachably connected to the outer surface of one end of the stabilizing guide, a drill bit is detachably connected to the outer surface of one end of the drill rod, a trimming box, an adjuster and an angle sensor are arranged on the outer wall of the stabilizing guide, the trimming box is located above the adjuster, and the adjuster is located above the angle sensor, an auxiliary support ring is arranged in the middle of the stabilizing guide, a push rod is arranged on the outer wall of the auxiliary support ring, the outer wall of the push rod is movably connected to a limiting cylinder, a limiting spring is arranged between the push rod and the limiting cylinder, and a rubber ball is movably connected to the inner wall of the auxiliary support ring.

[0006] Preferably, the front end outer surface of the trimming box is movably connected with an opening and closing plate, a connecting shaft is movably connected between the opening and closing plate and the trimming box, a connecting spring is provided on the inner surface of one end of the trimming box, the bottom end outer surface of the trimming box is detachably connected with an electromagnet, and the bottom end outer surface of the opening and closing plate is provided with a metal magnetic suction block.

[0007] Preferably, a hydraulic interface is provided on the outer wall of the regulator, a liquid guide groove is provided inside the regulator, a piston cylinder is detachably connected to the inner wall of the regulator, and a piston rod is movably connected to the middle part of the piston cylinder.

[0008] Preferably, the rubber balls are distributed in an annular structure, the number of the push rods is eight groups, and the outer surface of one end of the limiting cylinder is welded to the inner wall of the stabilizing guide.

[0009] Preferably, the opening and closing plate is movably connected to the trimming box via a connecting shaft, the outer surface of one end of the connecting spring is welded to the outer surface of the rear end of the opening and closing plate, the opening and closing plate and the metal magnetic block are an integrally formed structure, and the electromagnet passes through the trimming box.

[0010] Preferably, the regulator and the hydraulic interface are an integrally formed structure, and the liquid guiding groove and the piston cylinder are a through structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The set auxiliary support ring can assist the drill pipe when in use, increase the force area of ​​the drill pipe when the drill bit is guided, disperse the pressure during guidance, avoid damage to the drill pipe during long-term use, and extend the service life of the drill pipe; the dressing box can open the opening and closing plate through the connecting spring when in use, and when the drill pipe moves forward, the opening and closing plate can be attached to the inner wall of the well to clean some protruding bumps, which can level the well wall. When encountering harder bumps, the opening and closing plate can be recovered by the connecting spring to facilitate passing, and when the opening and closing plate is recovered by the connecting spring, the electromagnet can be connected and magnetically attracted to the metal magnetic block, which can close the opening and closing plate, making it convenient to exit the drilling afterwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is the internal structure diagram of the regulator and the stabilizing guide of the utility model;

[0015] Figure 3 This is a front structural diagram of the auxiliary support ring of the utility model;

[0016] Figure 4 It is a structural diagram of the trimming box of the utility model.

[0017] In the figure: 1. drill rod; 2. stabilizing guide; 3. stabilizer; 4. drill bit; 5. dressing box; 6. regulator; 7. angle sensor; 8. hydraulic interface; 9. liquid guide groove; 11. piston cylinder; 12. piston rod; 13. auxiliary support ring; 14. push rod; 15. limit cylinder; 16. rubber ball; 17. limit spring; 18. opening and closing plate; 19. connecting spring; 20. connecting shaft; 21. electromagnet; 22. metal magnetic block. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-4As shown, the rotary steerable drilling tool offset unit device provided by the embodiment of the utility model comprises a drill pipe 1, a stabilizing guide 2 is arranged on the outside of the drill pipe 1, a stabilizer 3 is detachably connected to the outer surface of one end of the stabilizing guide 2, a drill bit 4 is detachably connected to the outer surface of one end of the drill pipe 1, a trimming box 5, an adjuster 6 and an angle sensor 7 are arranged on the outer wall of the stabilizing guide 2, the trimming box 5 is located above the adjuster 6, and the adjuster 6 is located above the angle sensor 7, an auxiliary support ring 13 is arranged in the middle of the stabilizing guide 2, a push rod 14 is arranged on the outer wall of the auxiliary support ring 13, the outer wall of the push rod 14 is movably connected to a limiting cylinder 15, a limiting spring 17 is arranged between the push rod 14 and the limiting cylinder 15, and a rubber ball 16 is movably connected to the inner wall of the auxiliary support ring 13.

[0020] Specifically, in this embodiment, a drill rod 1 is provided with a stabilizing guide 2 on the outside of the drill rod 1. A centralizer 3 is detachably connected to the outer surface of one end of the stabilizing guide 2. The centralizer 3 mainly plays the role of quickly centralizing the drill bit 4 when in use. The drill bit 4 is detachably connected to the outer surface of one end of the drill rod 1. A trimming box 5, an adjuster 6 and an angle sensor 7 are provided on the outer wall of the stabilizing guide 2. The angle sensor 7 can sense and monitor the angle of the drill bit 4 when in use. The trimming box 5 is located above the adjuster 6. The adjuster 6 is located above the angle sensor 7. An auxiliary support ring 13 is provided in the middle of the stabilizing guide 2. The auxiliary support ring 13 can assist the drill rod 1 when in use. The auxiliary supporting effect can increase the force-bearing area of ​​the drill rod 1 when the drill bit 4 is guided, can disperse the pressure during guiding, can avoid damage to the drill rod 1 during long-term use, and can extend the service life of the drill rod 1. The outer wall of the auxiliary supporting ring 13 is provided with a push rod 14, and the outer wall of the push rod 14 is movably connected to a limiting cylinder 15. The push rod 14 will shrink into the limiting cylinder 15 when squeezed, and the limiting spring 17 can buffer the push rod 14. A limiting spring 17 is provided between the push rod 14 and the limiting cylinder 15, and the inner wall of the auxiliary supporting ring 13 is movably connected with a rubber ball 16, which can roll on the surface of the drill rod 1 to facilitate the rotation of the drill rod 1.

[0021] The rotary guide drilling tool offset unit device provided by the utility model has an auxiliary support ring 13 which can assist in supporting the drill pipe 1 when in use, increase the force bearing area of ​​the drill pipe 1 when the drill bit 4 is guided, disperse the pressure during guidance, avoid damage to the drill pipe 1 during long-term use, and extend the service life of the drill pipe 1.

[0022] In an embodiment provided by the utility model, an opening and closing plate 18 is movably connected to the outer surface of the front end of the trimming box 5, and a connecting shaft 20 is movably connected between the opening and closing plate 18 and the trimming box 5. A connecting spring 19 is provided on the inner surface of one end of the trimming box 5, and an electromagnet 21 is detachably connected to the outer surface of the bottom end of the trimming box 5. A metal magnetic block 22 is provided on the outer surface of the bottom end of the opening and closing plate 18. When the trimming box 5 is in use, the opening and closing plate 18 can be bounced open by the connecting spring 19. When the drill rod 1 moves forward, the opening and closing plate 18 can be attached to the inner wall of the well to clean some protruding bumps, which can have the effect of leveling the well wall. When encountering a harder bump, the opening and closing plate 18 can be recovered by the connecting spring 19 to facilitate passing, and when the opening and closing plate 18 is recovered by the connecting spring 19, the electromagnet 21 can be connected and magnetically attracted to the metal magnetic block 22, which can have a closing effect on the opening and closing plate 18, which is convenient for subsequent exit from drilling.

[0023] In another embodiment provided by the utility model, a hydraulic interface 8 is provided on the outer wall of the regulator 6, a liquid guide groove 9 is provided inside the regulator 6, the inner wall of the regulator 6 is detachably connected to a piston cylinder 11, and the middle part of the piston cylinder 11 is movably connected to a piston rod 12. When in use, the hydraulic interface 8 can be conveniently connected to the hydraulic oil circuit, can be conveniently injected into the liquid guide groove 9, can be conveniently pushed out the piston rod 12 by the hydraulic oil, and the position of the piston rod 12 can be adjusted to adjust the angle of the drill bit 4.

[0024] In another embodiment provided by the utility model, the rubber balls 16 are distributed in an annular structure, the number of the push rods 14 is eight groups, the outer surface of one end of the limiting cylinder 15 is welded to the inner wall of the stabilizing guide 2, and the rubber balls 16 facilitate the rotation of the drill rod 1.

[0025] In an embodiment provided by the utility model, the opening and closing plate 18 is movably connected to the trimming box 5 through a connecting shaft 20, the outer surface of one end of the connecting spring 19 is welded to the outer surface of the rear end of the opening and closing plate 18, the opening and closing plate 18 and the metal magnetic block 22 are an integrally formed structure, and the electromagnet 21 runs through the trimming box 5. When in use, the electromagnet 21 can magnetically attract the metal magnetic block 22, thereby facilitating the closing of the opening and closing plate 18.

[0026] In another embodiment provided by the utility model, the regulator 6 and the hydraulic interface 8 are an integrally formed structure, the liquid guide groove 9 and the piston cylinder 11 are a through structure, and the hydraulic interface 8 can be easily connected to the hydraulic oil circuit to facilitate the injection of hydraulic oil.

[0027] It should be noted that the utility model is a rotary steering drilling tool offset unit device. When in use, the hydraulic interface 8 is externally connected to a hydraulic oil circuit. When the angle of the drill bit 4 needs to be adjusted, hydraulic oil can be injected into the hydraulic interface 8 at the corresponding position, so that the hydraulic oil is injected into the piston cylinder 11 through the liquid guide groove 9, and then the piston rod 12 in the piston cylinder 11 is pushed out, so that the piston rod 12 pushes the drill rod 1 to adjust the position of the drill rod 1. By changing the position of the drill rod 1, the drill bit 4 is adjusted. When the position of the drill rod 1 is changed, the auxiliary support ring 13 is attached to the outer wall of the drill rod 1 and will be displaced accordingly, so that the auxiliary support ring 13 pushes the push rod 14 to shrink in the limit tube 15, and the limit spring 17 can buffer the push rod 14, and the rubber ball 16 can be attached to the surface of the drill rod 1 to roll, which is convenient for the drill rod 1 to rotate. The auxiliary support ring 13 is used to increase the force area of ​​the drill rod 1 when the drill bit 4 is guided, and the pressure during guidance can be dispersed, so that the drill rod 1 can be prevented from being damaged by long-term use, and the service life of the drill rod 1 can be extended. When the drill rod 1 moves forward, the trimming box 5 can The opening and closing plate 18 is popped open by connecting the spring 19, and the opening and closing plate 18 can be attached to the inner wall of the well to clean some protruding bumps, which can have the effect of leveling the well wall. When encountering a harder bump, the opening and closing plate 18 can be recovered by connecting the spring 19, which is convenient for passing through, and when the opening and closing plate 18 is recovered by connecting the spring 19, the electromagnet 21 can be connected and magnetically attracted to the metal magnetic block 22, which can have the effect of closing the opening and closing plate 18, which is convenient for subsequent exit from drilling. The angle sensor 7 can sense and monitor the angle of the drill bit 4 when in use, which is convenient for workers to adjust the angle of the drill bit 4, which is more practical.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A rotary steerable drilling tool offset unit device, comprising a drill rod (1), characterized in that: The outside of the drill rod (1) is provided with a stabilizing guide (2), the outer surface of one end of the stabilizing guide (2) is detachably connected with a stabilizer (3), the outer surface of one end of the drill rod (1) is detachably connected with a drill bit (4), the outer wall of the stabilizing guide (2) is provided with a trimming box (5), an adjuster (6) and an angle sensor (7), the trimming box (5) is located above the adjuster (6), and the adjuster (6) is located above the angle sensor (7), an auxiliary support ring (13) is provided in the middle of the stabilizing guide (2), the outer wall of the auxiliary support ring (13) is provided with a push rod (14), the outer wall of the push rod (14) is movably connected with a limiting cylinder (15), a limiting spring (17) is provided between the push rod (14) and the limiting cylinder (15), and the inner wall of the auxiliary support ring (13) is movably connected with a rubber ball (16).

2. The rotary steerable drilling tool offset unit device according to claim 1, characterized in that: The front end outer surface of the trimming box (5) is movably connected to an opening and closing plate (18), a connecting shaft (20) is movably connected between the opening and closing plate (18) and the trimming box (5), a connecting spring (19) is provided on the inner surface of one end of the trimming box (5), an electromagnet (21) is detachably connected to the bottom end outer surface of the trimming box (5), and a metal magnetic suction block (22) is provided on the bottom end outer surface of the opening and closing plate (18).

3. The rotary steerable drilling tool offset unit device according to claim 1, characterized in that: The outer wall of the regulator (6) is provided with a hydraulic interface (8), the interior of the regulator (6) is provided with a liquid guide groove (9), the inner wall of the regulator (6) is detachably connected to a piston cylinder (11), and the middle part of the piston cylinder (11) is movably connected to a piston rod (12).

4. The rotary steerable drilling tool offset unit device according to claim 1, characterized in that: The rubber balls (16) are distributed in an annular structure, the number of the push rods (14) is eight groups, and the outer surface of one end of the limiting cylinder (15) is welded to the inner wall of the stabilizing guide (2).

5. The rotary steerable drilling tool offset unit device according to claim 2, characterized in that: The opening and closing plate (18) is movably connected to the trimming box (5) via a connecting shaft (20); the outer surface of one end of the connecting spring (19) is welded to the outer surface of the rear end of the opening and closing plate (18); the opening and closing plate (18) and the metal magnetic block (22) are an integrally formed structure; and the electromagnet (21) passes through the trimming box (5).

6. The rotary steerable drilling tool offset unit device according to claim 3, characterized in that: The regulator (6) and the hydraulic interface (8) are an integrally formed structure, and the liquid guide groove (9) and the piston cylinder (11) are a through structure.

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