Ultra-short oscillation power tool

Abstract

The utility model relates to the technical field of drilling equipment, in particular to an ultra-short oscillation power tool which comprises a rotating pipe, the inner wall of the rotating pipe is rotationally connected with a rotating shaft, and a connector is installed at the end, away from the rotating shaft, of the rotating pipe; the oscillation mechanism is arranged in the rotating pipe, and the surface of the oscillation mechanism extends to the surface of the rotating shaft; the vibration mechanism comprises an axial vibration assembly arranged on the surface of the rotating shaft, and the axial vibration assembly is installed on the inner wall of the rotating pipe. The length of the oscillation screw drill is shortened, and the distance from a bending point to a drill bit is shortened, so that the steering radius is reduced, the measurement zero length is reduced, the track measurement capability and the control precision are improved, a series of optimized matching technologies of the oscillation screw drill matched with an efficient drill bit, a drill assembly and the like are formed, and the drill is endowed with the axial oscillation function through the function design of generating pulse water pressure. And the well drilling speed increasing target is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to an ultra-short oscillation power tool. Background Art

[0002] The domestic demand for oil and gas is increasing day by day, and the exploration and exploitation technology of unconventional oil and gas resources such as coalbed methane, shale gas, and "combustible ice" has also entered the critical stage. Driven by these factors, my country's new oil and gas drilling technology has been continuously developed and improved, driving the update and improvement of downhole power drilling tools as the main equipment and tools for oil and gas extraction. At present, screw drilling tools have been widely used in geological drilling, coal fields and oil and gas drilling.

[0003] Directional wells and horizontal wells are the main well types used in the development of domestic oil and gas fields. During the drilling process, the weight of the drill string is generally used to apply pressure to the drill bit to break the rock. Since the drill string contacts the well wall, friction resistance increases with the increase of well inclination and the length of the contact section, resulting in the weight of the drill string not being able to be applied to the drill bit. In particular, in horizontal well operations, the drill tool drag pressure occurs, which affects the drilling process and reduces the drilling speed.

[0004] Therefore, an ultra-short oscillation power tool is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an ultra-short oscillation power tool in order to solve the above-mentioned problem, thereby improving the problem of drilling tool drag pressure in horizontal well operations, affecting drilling and thus reducing the drilling speed.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions. The ultra-short oscillation power tool includes: a rotating tube, the inner wall of which is rotatably connected to a rotating shaft, and a connector is installed at one end of the rotating tube away from the rotating shaft; an oscillation mechanism, which is arranged inside the rotating tube, and the surface of the oscillation mechanism extends to the surface of the rotating shaft; wherein the oscillation mechanism includes an axial oscillation component arranged on the surface of the rotating shaft, the axial oscillation component is installed on the inner wall of the rotating tube, and a lateral oscillation component is arranged at one end of the axial oscillation component close to the connector, and the lateral oscillation component is installed inside the rotating tube.

[0007] Preferably, the axial oscillation component includes a fixed ring fixedly connected to the inner wall of the rotating tube, a wave spring is arranged on the side of the fixed ring away from the connecting head, a sliding tube is slidably connected to the inner wall of the fixed ring, the sliding tube is slidably connected to the surface of the rotating shaft, and a connecting ring is fixedly connected to the end of the sliding tube away from the connecting head. Liquid impacts the connecting ring to drive it to move toward the wave spring, squeezing the wave spring to gradually flatten.

[0008] Preferably, the lateral oscillation assembly includes a rotating seat installed on the end of the rotating shaft near the connecting head, the end of the rotating seat away from the rotating shaft is connected to a universal shaft, the end of the universal shaft near the connecting head is connected to an oscillation block, and the end of the oscillation block near the connecting head is connected to a connecting rod, and the rotating seat is driven to rotate by the rotation of the rotating shaft.

[0009] Preferably, a soft rubber airbag is fixedly connected to one side of the connecting ring close to the wave spring, the outer diameter of the connecting ring is smaller than the outer diameter of the fixing ring, and the outer diameter of the connecting ring is larger than the inner diameter of the fixing ring. As the wave spring is gradually straightened, it is blocked by the soft rubber airbag.

[0010] Preferably, the lateral oscillation assembly further comprises an oscillation sleeve fixedly connected to the inner wall of the rotating tube, the oscillation block is located inside the oscillation sleeve, and the oscillation block is kept eccentrically arranged inside the oscillation sleeve.

[0011] Preferably, one end of the oscillation block is fixedly connected with a toothed protrusion, the inner wall of the oscillation sleeve is provided with a toothed groove, the toothed protrusion matches the toothed groove, and the cooperation between the oscillation block and the oscillation sleeve is similar to the internal tooth meshing structure of a harmonic reducer.

[0012] Preferably, the wave spring is sleeved on the outside of the sliding tube, and the wave spring is located between the connecting ring and the fixing ring, thereby limiting the range of movement of the wave spring.

[0013] The beneficial effects of the utility model are:

[0014] 1. The ultra-short oscillation power tool can shorten the length of the oscillating screw drill tool and reduce the distance from the bending point to the drill bit under the action of the oscillation mechanism, thereby reducing the turning radius, reducing the measurement zero length, and improving the trajectory measurement capability and control accuracy. It forms a series of optimized supporting technologies such as oscillating screw drill tools combined with high-efficiency drill bits and drill tool combinations. Through the functional design of generating pulse water pressure, the drill tool is given the function of axial oscillation to achieve the goal of increasing drilling speed;

[0015] 2. By setting up a lateral oscillation component, the rotating tube can function properly during the working process under the action of the lateral oscillation component. When the mechanical energy of the rotating shaft moves, the device will drive the oscillation block to form a proper effect on the inner wall of the rotating tube, providing an oscillation force near the drill bit, so as to effectively alleviate the bottom hole drag pressure and achieve the goal of increasing drilling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the position of the rotating shaft of the utility model;

[0018] Figure 3This is a schematic diagram of the structure of the oscillating mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the axial oscillation component of the utility model;

[0020] Figure 5 This is a schematic diagram of the explosion structure of the lateral shock assembly of the utility model;

[0021] Figure 6 It is a schematic diagram of the explosion structure of the axial oscillation component of the utility model.

[0022] In the figure: 1. rotating tube; 11. rotating shaft; 2. connecting head; 3. oscillation mechanism; 31. axial oscillation assembly; 311. fixing ring; 312. sliding tube; 313. connecting ring; 314. wave spring; 315. soft rubber airbag; 32. lateral oscillation assembly; 321. connecting rod; 322. universal shaft; 323. oscillation block; 324. rotating seat; 325. oscillation sleeve. DETAILED DESCRIPTION

[0023] 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.

[0024] When implementing: Figure 1-6 As shown, the ultra-short oscillation power tool comprises: a rotating tube 1, the inner wall of the rotating tube 1 is rotatably connected with a rotating shaft 11, and a connector 2 is installed at one end of the rotating tube 1 away from the rotating shaft 11; an oscillation mechanism 3, the oscillation mechanism 3 is arranged inside the rotating tube 1, and the surface of the oscillation mechanism 3 extends to the surface of the rotating shaft 11; wherein the oscillation mechanism 3 comprises an axial oscillation component 31 arranged on the surface of the rotating shaft 11, the axial oscillation component 31 is installed on the inner wall of the rotating tube 1, and a lateral oscillation component 32 is arranged at one end of the axial oscillation component 31 close to the connector 2, and the lateral oscillation component 32 is installed inside the rotating tube 1;

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6As shown, the axial oscillation component 31 includes a fixed ring 311 fixedly connected to the inner wall of the rotating tube 1, a wave spring 314 is arranged on the side of the fixed ring 311 away from the connector 2, a sliding tube 312 is slidably connected to the inner wall of the fixed ring 311, the sliding tube 312 is slidably connected to the surface of the rotating shaft 11, a connecting ring 313 is fixedly connected to one end of the sliding tube 312 away from the connector 2, a soft rubber airbag 315 is fixedly connected to the side of the connecting ring 313 close to the wave spring 314, the outer diameter of the connecting ring 313 is smaller than the outer diameter of the fixing ring 311, the outer diameter of the connecting ring 313 is larger than the inner diameter of the fixing ring 311, the wave spring 314 is sleeved on the outside of the sliding tube 312, and the wave spring 314 is located between the connecting ring 313 and the fixing ring 311;

[0026] When the device is in use, the connecting ring 313 can be impacted by liquid, so that the connecting ring 313 is driven to move toward the wave spring 314 under the impact of high-speed water flow. At this time, when the connecting ring 313 moves, it drives the sliding tube 312 to slide on the inner wall of the fixed ring 311. At the same time, when the connecting ring 313 moves, it squeezes the wave spring 314, so that the wave spring 314 is gradually flattened. At the same time, when the wave spring 314 tends to be straight, its outer diameter and inner diameter gradually increase. During this change process, the water flows through the inside of the wave spring 314. Since the wave spring 314 is blocked by the soft rubber airbag 315 during the gradual straightening process, the flow of water is slowed down. The functional design of generating pulse water pressure will give the drilling tool the function of axial oscillation, shorten the length of the oscillating screw drilling tool, and reduce the distance from the bending point to the drill bit, so as to reduce the turning radius, reduce the measurement zero length, and improve the trajectory measurement capability and control accuracy.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the lateral oscillation assembly 32 includes a rotating seat 324 installed on the end of the rotating shaft 11 near the connector 2, the end of the rotating seat 324 away from the rotating shaft 11 is connected to a universal shaft 322, the end of the universal shaft 322 near the connector 2 is connected to an oscillation block 323, and the end of the oscillation block 323 near the connector 2 is connected to a connecting rod 321, and the lateral oscillation assembly 32 also includes an oscillation sleeve 325 fixedly connected to the inner wall of the rotating tube 1, the oscillation block 323 is located inside the oscillation sleeve 325, one end of the oscillation block 323 is fixedly connected to a toothed protrusion, and the inner wall of the oscillation sleeve 325 is provided with a toothed groove, and the toothed protrusion matches the toothed groove. The device drives the rotating seat 324 to rotate by the rotation of the rotating shaft 11, and at this time, the universal shaft 322 drives the oscillation block 323 to rotate synchronously inside the oscillation sleeve 325, and at the same time forms a horizontal oscillation effect.

[0028] When the utility model is in use, liquid impacts the connecting ring 313 and drives the wave spring 314 to move. At this time, when the connecting ring 313 moves, it drives the sliding tube 312 to slide on the inner wall of the fixed ring 311. At the same time, when the connecting ring 313 moves, the wave spring 314 is squeezed and gradually flattened. When the wave spring 314 tends to be straight, its outer diameter and inner diameter gradually increase. During this change process, the water flows through the inside of the wave spring 314. Since the wave spring 314 is blocked by the soft rubber airbag 315 during the process of gradually straightening, the length of the oscillating screw drill is shortened, and the distance from the bending point to the drill bit is shortened, so as to reduce the turning radius, reduce the measurement zero length, and improve the trajectory measurement capability and control accuracy.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Ultra-short oscillation power tool, characterized in that: include: A rotating tube (1), the inner wall of which is rotatably connected to a rotating shaft (11), and a connector (2) is installed at one end of the rotating tube (1) away from the rotating shaft (11); An oscillating mechanism (3), wherein the oscillating mechanism (3) is arranged inside the rotating tube (1), and the surface of the oscillating mechanism (3) extends to the surface of the rotating shaft (11); The oscillation mechanism (3) comprises an axial oscillation component (31) arranged on the surface of the rotating shaft (11), the axial oscillation component (31) is installed on the inner wall of the rotating tube (1), and a lateral oscillation component (32) is arranged at one end of the axial oscillation component (31) close to the connector (2), and the lateral oscillation component (32) is installed inside the rotating tube (1).

2. The ultra-short oscillation power tool according to claim 1, characterized in that: The axial oscillation component (31) comprises a fixing ring (311) fixedly connected to the inner wall of the rotating tube (1); a wave spring (314) is arranged on the side of the fixing ring (311) away from the connecting head (2); a sliding tube (312) is slidably connected to the inner wall of the fixing ring (311); the sliding tube (312) is slidably connected to the surface of the rotating shaft (11); and a connecting ring (313) is fixedly connected to the end of the sliding tube (312) away from the connecting head (2).

3. The ultra-short oscillation power tool according to claim 1, characterized in that: The lateral oscillation assembly (32) comprises a rotating seat (324) mounted on the end of the rotating shaft (11) close to the connecting head (2); the end of the rotating seat (324) away from the rotating shaft (11) is connected to a universal shaft (322); the end of the universal shaft (322) close to the connecting head (2) is connected to an oscillation block (323); the end of the oscillation block (323) close to the connecting head (2) is connected to a connecting rod (321).

4. The ultra-short oscillation power tool according to claim 2, characterized in that: A soft rubber airbag (315) is fixedly connected to one side of the connecting ring (313) close to the wave spring (314); the outer diameter of the connecting ring (313) is smaller than the outer diameter of the fixing ring (311); and the outer diameter of the connecting ring (313) is larger than the inner diameter of the fixing ring (311).

5. The ultra-short oscillation power tool according to claim 3, characterized in that: The lateral oscillation component (32) further comprises an oscillation sleeve (325) fixedly connected to the inner wall of the rotating tube (1), and the oscillation block (323) is located inside the oscillation sleeve (325).

6. The ultra-short oscillation power tool according to claim 5, characterized in that: One end of the oscillating block (323) is fixedly connected with a tooth-shaped protrusion, and the inner wall of the oscillating sleeve (325) is provided with a tooth-shaped groove, and the tooth-shaped protrusion matches the tooth-shaped groove.

7. The ultra-short oscillation power tool according to claim 4, characterized in that: The wave spring (314) is sleeved on the outside of the sliding tube (312), and the wave spring (314) is located between the connecting ring (313) and the fixing ring (311).

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