Self-rotating drifting and reaming tool

Abstract

The utility model discloses a self-rotating drifting and reaming tool, which belongs to the technical field of drifting equipment and comprises a drill rod joint, and a flow guide screw sleeve is fixedly connected to the inner side of the drill rod joint. The lower end of the diversion screw sleeve is rotationally connected with a turbine; the lower end of the drill rod joint is fixedly connected with a turbine bearing seat; the inner side of the turbine bearing seat is rotationally connected with a torque transmission connecting pipe through a bearing; the upper end of the spring is fixedly connected with the lower end of the turbine; the lower end of the torque-transmission connecting pipe is fixedly connected with a rotary drill; spherical teeth are arranged on the side wall of the rotary drill bit; a flow guide assembly is arranged on the inner side of the drill rod connector. Through the mode, water is injected from the upper end of the drill rod joint, water flows to the turbine and impacts the turbine, and the water drives the turbine to drive the torque transmission connecting pipe to rotate around the axis of the turbine bearing seat through the bearing; the torsion transmission connecting pipe drives the ball teeth to rotate through the rotary drill bit and drills a drifting well, self-rotation of the drill bit is achieved through water flow to conduct drifting operation, and drifting stability is not affected by the depth of the drill bit.

Description

Technical Field

[0001] The utility model relates to the technical field of well cleaning equipment, in particular to a self-rotating well cleaning and reaming tool. Background Art

[0002] The well drilling equipment technology sector has broad prospects. With the advancement of domestic infrastructure construction and the development of mining, energy and other fields, market demand is growing.

[0003] Chinese patent CN220645909U discloses a well completion tool, which includes a mounting plate, a connecting pipe rotatably connected to the mounting plate, an extension pipe threadedly connected to the lower end of the connecting pipe, a hollow drill bit connected to the lower end of the extension pipe, a plurality of scrapers provided on the drill bit, and a plurality of liquid outlet holes opened on the drill bit; a feeding mechanism for conveying a wax melting agent into the connecting pipe is installed on the top surface of the mounting plate; a driving mechanism for driving the connecting pipe to rotate is also installed on the top surface of the mounting plate.

[0004] The tool uses a motor to drive the connecting pipe to rotate, which in turn drives the extension pipe to rotate, and then drives the drill bit to rotate, thereby achieving well clearance. As the drill bit gradually moves downward, the deflection of the shaft increases, the drill bit rotation effect is reduced, the extension pipe is prone to deformation, and the instability of the drill bit rotation is increased.

[0005] Based on this, the utility model designs a self-rotating well-clearing reaming tool to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a self-rotating well-clearing and reaming tool.

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

[0008] A self-rotating well-clearing reaming tool comprises a drill pipe joint;

[0009] A guide screw sleeve is fixedly connected to the inner side of the drill pipe joint; the lower end of the guide screw sleeve is rotatably connected to the turbine; the lower end of the drill pipe joint is fixedly connected to the turbine bearing seat; the inner side wall of the turbine bearing seat is rotatably connected to the torque transmission pipe through a bearing; a spring is provided on the lower end of the turbine, the upper end of the spring is fixedly connected to the lower end of the turbine, and the lower end of the spring is fixedly connected to the upper end of the torque transmission pipe; the lower end of the torque transmission pipe is fixedly connected to a rotary drill bit; the side wall of the rotary drill bit is inlaid with six rows of ball teeth with crushing drilling functions; a guide assembly is provided on the inner side of the drill pipe joint.

[0010] Furthermore, the side wall of the turbine bearing seat is rotatably connected to five groups of rollers for reducing friction, and the five groups of rollers are in a uniform circular array.

[0011] Furthermore, the guide assembly includes guide groove one, guide groove two and guide groove three, the guide groove one is provided on the inner side of the guide screw sleeve, the guide groove two is provided on the inner side of the turbine bearing seat, and the guide groove three is provided on the inner side of the rotary drill bit.

[0012] Furthermore, the ball teeth are made of cemented carbide.

[0013] Furthermore, the rotary drill bit adopts an eccentric drill bit with a tilted head that automatically avoids obstacles.

[0014] Furthermore, the outer diameter of the drill pipe joint is 168 mm.

[0015] Furthermore, the distance between the top of the drill rod joint and the bottom of the rotary drill bit is 658 mm.

[0016] Furthermore, the spring is a rectangular spring.

[0017] Compared with the prior art, the utility model has the following beneficial effects: water is injected from the upper end of the drill pipe joint to the inner side of the drill pipe joint, the water flows through the guide groove to the turbine and impacts the turbine, the water drives the turbine to drive the torque transmission pipe to rotate around the axis of the turbine bearing seat through the bearing; the torque transmission pipe drives the ball teeth to rotate and drill the well through the rotating drill bit, without providing additional power, and uses the water flow to realize the self-rotation of the drill bit to perform the well drilling operation, and the stability of the well drilling is not affected by the depth of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0019] Figure 1 This is a front view of a self-rotating well-clearing reaming tool according to the present invention;

[0020] Figure 2 To follow Figure 1 A three-dimensional image with part of the AA cut away;

[0021] Figure 3 To follow Figure 1 A three-dimensional image of a BB with part of it cut away;

[0022] Figure 4 for Figure 1 Enlarged view of point C in the middle.

[0023] The numbers in the figure represent:

[0024] 1. Drill pipe joint; 2. Guide screw; 3. Turbine; 4. Turbine bearing seat; 5. Bearing; 6. Spring; 7. Torque transmission tube; 8. Rotating drill bit; 9. Roller; 10. Ball gear; 11. Guide groove 1; 12. Guide groove 2; 13. Guide groove 3. DETAILED DESCRIPTION

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

[0026] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-4 , a self-rotating well-clearing reaming tool, comprising a drill pipe joint 1;

[0028] The inner side of the drill pipe joint 1 is fixedly connected to a guide screw sleeve 2, and the inner side of the guide screw sleeve 2 is provided with a guide groove 11; the lower end of the guide screw sleeve 2 is rotatably connected to a turbine 3; the lower end of the drill pipe joint 1 is fixedly connected to a turbine bearing seat 4, and the inner side of the turbine bearing seat 4 is provided with a guide groove 2 12; the inner side wall of the turbine bearing seat 4 is rotatably connected to a torque transmission pipe 7 through a bearing 5; the lower end of the turbine 3 is sleeved with a spring 6, and the spring 6 is a rectangular spring; the upper end of the spring 6 is fixedly connected to the lower end of the turbine 3, and the lower end of the spring 6 is fixedly connected to the upper end of the torque transmission pipe 7; the lower end of the torque transmission pipe 7 is fixedly connected to a rotary drill bit 8; the side wall of the rotary drill bit 8 is inlaid with six rows of ball teeth 10 with a crushing drilling function; the inner side of the rotary drill bit 8 is provided with a guide groove 3 13.

[0029] In the present invention, water is injected into the inner side of the drill pipe joint 1 from the upper end of the drill pipe joint 1, and the water flows through the guide groove 1 11 to the turbine 3 and impacts the turbine 3, and the water drives the turbine 3 to drive the torque transmission pipe 7 to rotate around the axis of the turbine bearing seat 4 through the bearing 5; the torque transmission pipe 7 drives the ball gear 10 to rotate and drill into the well by rotating the drill bit 8, without providing additional power, and uses the water flow to realize the self-rotation of the drill bit to perform the well-drilling operation, and the stability of the well-drilling is not affected by the depth of the drill bit; at this time, the water flows through the guide groove 2 12 and flows through the guide groove 3 13 and finally flows out, avoiding the accumulation of water on the inner side of the drill pipe joint 1 and affecting the effect of the water flow impacting the turbine 3; the spring 6 between the turbine 3 and the torque transmission pipe 7 realizes a buffering effect on the force, avoiding excessive force directly transmitted to the torque transmission pipe 7 and causing wear of parts.

[0030] The side wall of the turbine bearing seat 4 is rotatably connected to five groups of rollers 9 for reducing friction, and the five groups of rollers 9 are arranged in a uniform circumferential array;

[0031] The ball gear 10 is made of cemented carbide, such as polycrystalline diamond composite sheet;

[0032] The rotary drill bit 8 is an eccentric drill bit with a tilted head that can automatically avoid obstacles;

[0033] The outer diameter of the drill rod joint 1 is 168 mm;

[0034] The distance between the top of the drill rod joint 1 and the bottom of the rotary drill bit 8 is 658 mm.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A self-rotating well-clearing reaming tool, comprising a drill pipe joint (1), characterized in that: The inner side of the drill pipe joint (1) is fixedly connected to a flow guide screw sleeve (2); the lower end of the flow guide screw sleeve (2) is rotatably connected to a turbine (3); the lower end of the drill pipe joint (1) is fixedly connected to a turbine bearing seat (4); the inner side wall of the turbine bearing seat (4) is rotatably connected to a torque transmission pipe (7) through a bearing (5); a spring (6) is provided on the lower end of the turbine (3); the upper end of the spring (6) is fixedly connected to the lower end of the turbine (3), and the lower end of the spring (6) is fixedly connected to the upper end of the torque transmission pipe (7); the lower end of the torque transmission pipe (7) is fixedly connected to a rotary drill bit (8); the side wall of the rotary drill bit (8) is inlaid with six rows of ball teeth (10) with a crushing drilling function; and a flow guide component is provided on the inner side of the drill pipe joint (1).

2. The self-rotating well-clearing reaming tool according to claim 1, characterized in that: The side wall of the turbine bearing seat (4) is rotatably connected to five groups of rollers (9) for reducing friction, and the five groups of rollers (9) are arranged in a uniform circumferential array.

3. The self-rotating well-clearing reaming tool according to claim 2, characterized in that: The guide assembly comprises a guide groove 1 (11), a guide groove 2 (12) and a guide groove 3 (13), wherein the guide groove 1 (11) is provided on the inner side of the guide screw sleeve (2), the guide groove 2 (12) is provided on the inner side of the turbine bearing seat (4), and the guide groove 3 (13) is provided on the inner side of the rotary drill bit (8).

4. The self-rotating well-clearing reaming tool according to claim 3, characterized in that: The ball teeth (10) are made of hard alloy.

5. The self-rotating well-clearing reaming tool according to claim 4, characterized in that: The rotary drill bit (8) adopts a tilted eccentric drill bit that automatically avoids obstacles.

6. The self-rotating well-clearing reaming tool according to claim 5, characterized in that: The outer diameter of the drill rod joint (1) is 168 mm.

7. The self-rotating well-clearing reaming tool according to claim 6, characterized in that: The distance between the top of the drill rod joint (1) and the bottom of the rotary drill bit (8) is 658 mm.

8. The self-rotating well-clearing reaming tool according to claim 7, characterized in that: The spring (6) is a rectangular spring.

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