Orientation tool for horizontal well with ultra-short curvature radius

Abstract

The utility model discloses an orienting tool for a horizontal well with an ultra-short curvature radius, and relates to the technical field of special methods or equipment for well drilling. The orienting tool for the horizontal well with the ultra-short curvature radius comprises a connecting piece, the supporting assembly is arranged on the connecting piece and comprises a limiting sliding rod, a sliding rod sleeve, a threaded sleeve, an arc-shaped supporting piece, a motor gear, a motor, a threaded rod and a gear, a motor screw is installed on the connecting piece, a motor gear key pin is installed on an output shaft of the motor, the threaded rod rotationally penetrates through the connecting piece, and the threaded rod is sleeved with the gear; the surface of the threaded rod is meshed with the surface of the motor gear, an arc-shaped supporting piece in the supporting assembly is arranged, the arc-shaped supporting piece moves downwards to make contact with the ground, the arc-shaped supporting piece makes contact with the ground, and the force needed for manually supporting the guide block body is shared; and therefore, the force required by the worker for continuously straightening the guide block main body is reduced, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of special drilling methods or equipment, in particular to a horizontal well directional tool with an ultra-short curvature radius. Background Art

[0002] A directional tool is a tool used in oilfield drilling. Its main function is to perform directional drilling and horizontal side drilling in a limited space. The Chinese utility model patent, authorization announcement number "CN217712417U", discloses an ultra-short curvature radius horizontal well directional tool, including: a guide block body, and also including: a rock breaking drill bit, a rotating disk, a connecting sleeve, a rotating sleeve, a connecting pipe, an inlet pipe, a driving assembly and a transmission assembly. The rock breaking drill bit is fixedly mounted on the lower side of the guide block body, the rotating disk is fixedly mounted on the upper side of the guide block body, the rotating sleeve is axially rotatably connected to the rotating disk, the rotating sleeve is mounted on one end of the connecting sleeve, and the other end of the connecting sleeve is fixedly connected to the inlet pipe through the connecting pipe. The driving assembly is fixedly mounted on the connecting pipe, the output end of the driving assembly is connected to the input end of the transmission assembly, and the output end of the transmission assembly is fixedly connected to the rotating disk. The driving assembly is used to drive the rotating disk to drive the guide block body to rotate.

[0003] The above technical solution can realize the steering of the downhole guide device by setting a reasonable structure, and the steering is adjustable and controllable, which improves production efficiency and reduces labor intensity. The adjustable steering method saves labor intensity, but in order to ensure stability during work, it is often necessary to manually support the directional tool continuously to avoid tilting of the directional tool. It is rather laborious for manual support for a long time. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a horizontal well directional tool with an ultra-short curvature radius, which can solve the problem of ensuring stability during operation, often requiring manual continuous support of the directional tool to avoid tilting of the directional tool, and requiring manual long-term support, which is quite laborious.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-short curvature radius horizontal well directional tool, comprising a connecting piece;

[0006] The support assembly is arranged on the connecting piece, and the support assembly includes a limiting sliding rod, a sliding rod sleeve, a threaded sleeve, an arc-shaped supporting piece, a motor gear, a motor, a threaded rod and a gear. The motor screw is installed on the connecting piece, the motor gear key pin is installed on the output shaft of the motor, and the threaded rod rotates and passes through the connecting piece.

[0007] Preferably, the gear is sleeved on the threaded rod, and the surface of the threaded rod is meshed with the surface of the motor gear.

[0008] Preferably, the inner surface of the threaded sleeve is threadedly connected to the outer surface of the threaded rod, and one end of the arc-shaped support member is sleeved on the threaded sleeve.

[0009] Preferably, the other end of the arc-shaped support member is sleeved on the sliding rod sleeve, the sliding rod sleeve slides on the surface of the limiting sliding rod, and the limiting sliding rod is welded to the connecting member.

[0010] Preferably, the interior of the connecting piece is rotatably connected with a guide block body, and a circular rack is sleeved on the surface of the guide block body.

[0011] Preferably, an inlet pipe is welded inside the connecting piece, and a motor is screwedly mounted on the surface of the inlet pipe.

[0012] Preferably, the output shaft key pin of the motor is installed with a motor gear, the surface of the motor gear is meshed with the surface of the annular rack, and a drill bit is installed on the lower surface of the guide block body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The ultra-short radius of curvature horizontal well directional tool has an arc-shaped support member in the support assembly. The arc-shaped support member moves downward until it contacts the ground. The arc-shaped support member contacts the ground to share the force required for manually supporting the guide block body, thereby reducing the force required for workers to continuously straighten the guide block body, thereby reducing the labor intensity of the workers.

[0015] (2) The ultra-short radius of curvature horizontal well directional tool is configured to have an arc-shaped support member that can move. The movement of the arc-shaped support member can adapt to the depth of the drill bit drilling into the ground. That is, the position of the arc-shaped support member is adjusted according to the distance between the connecting member and the ground, thereby expanding the adaptation scenario of the arc-shaped support member and extending the scope of application of the support assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection relationship between the slide rod sleeve and the limit slide rod of the utility model;

[0019] Figure 3 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0020] Figure numerals: 1. inlet pipe; 2. motor; 3. ring rack; 4. connecting piece; 5. motor gear; 6. guide block body; 7. drill bit; 8. limit slide rod; 9. slide rod sleeve; 10. threaded sleeve; 11. arc support member; 12. motor gear; 13. motor; 14. threaded rod; 15. gear. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] See also Figure 1-3 , the utility model provides a technical solution: an ultra-short curvature radius horizontal well directional tool, comprising a connecting member 4;

[0026] The supporting assembly is arranged on the connecting member 4, and the supporting assembly includes a limiting sliding rod 8, a sliding rod sleeve 9, a threaded sleeve 10, an arc-shaped supporting member 11, a motor gear 12, a motor 13, a threaded rod 14 and a gear 15. The motor 13 is screwed on the connecting member 4, the motor gear 12 is key-pinned on the output shaft of the motor 13, and the threaded rod 14 rotates and passes through the connecting member 4.

[0027] The gear 15 is sleeved on the threaded rod 14 , and the surface of the threaded rod 14 is meshed with the surface of the motor gear 12 .

[0028] The inner surface of the threaded sleeve 10 is threadedly connected to the outer surface of the threaded rod 14 , and one end of the arc-shaped support member 11 is sleeved on the threaded sleeve 10 .

[0029] The other end of the arc-shaped support member 11 is sleeved on the slide rod sleeve 9 , and the slide rod sleeve 9 slides on the surface of the limiting slide rod 8 , and the limiting slide rod 8 is welded to the connecting member 4 .

[0030] The guide block body 6 is rotatably connected inside the connecting member 4 , and the surface of the guide block body 6 is sleeved with the annular rack 3 .

[0031] The inlet pipe 1 is welded inside the connecting piece 4, and the motor 2 is screwedly mounted on the surface of the inlet pipe 1.

[0032] The output shaft key pin of the motor 2 is installed with a motor gear 5 , the surface of the motor gear 5 is meshed with the surface of the annular rack 3 , and the lower surface of the guide block body 6 is installed with a drill bit 7 .

[0033] When the guide block body 6 is turned underground, the motor 13 is started, and the motor gear 12 is driven to rotate. The rotation of the motor gear 12 drives the gear 15 to rotate. The rotation of the gear 15 drives the threaded rod 14 to rotate. The rotation of the threaded rod 14 drives the threaded sleeve 10 to move downward. The downward movement of the threaded sleeve 10 drives the arc support 11 to move downward and contact the ground.

[0034] When the orientation direction needs to be adjusted, the motor 2 is started, and the motor 2 drives the motor gear 5 to rotate, and the rotation of the motor gear 5 drives the annular rack 3 to rotate, and the rotation of the annular rack 3 drives the guide block body 6 to rotate.

[0035] By setting up an arc-shaped support member 11 in the support assembly, the arc-shaped support member 11 moves downward until it contacts the ground. The arc-shaped support member 11 contacts the ground to share the force required for manually supporting the guide block body 6, thereby reducing the force required for the staff to continuously straighten the guide block body 6, thereby reducing the labor intensity of the staff.

[0036] By setting the arc support member 11 to be movable, the movement of the arc support member 11 adapts to the depth of the drill bit 7 drilling into the ground, that is, the position of the arc support member 11 is adjusted according to the distance between the connecting member 4 and the ground, thereby expanding the adaptation scenario of the arc support member 11 and expanding the scope of application of the support assembly.

[0037] Working principle:

[0038] When auxiliary support is needed, after the guide block body 6 is turned underground, the motor 13 is started, and the motor gear 12 is driven to rotate, and the motor gear 12 drives the gear 15 to rotate, and the rotation of the gear 15 drives the threaded rod 14 to rotate, and the threaded rod 14 drives the threaded sleeve 10 to move downward, and the threaded sleeve 10 drives the arc support member 11 to move downward and contact the ground.

[0039] When the orientation direction needs to be adjusted, the motor 2 is started, the motor 2 drives the motor gear 5 to rotate, the rotation of the motor gear 5 drives the annular rack 3 to rotate, and the annular rack 3 drives the guide block body 6 to rotate.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A horizontal well directional tool with an ultra-short radius of curvature, characterized in that: include: Connector (4); The support assembly is arranged on the connecting member (4), and the support assembly comprises a limiting sliding rod (8), a sliding rod sleeve (9), a threaded sleeve (10), an arc-shaped supporting member (11), a motor gear (12), a motor (13), a threaded rod (14) and a gear (15); the motor (13) is screwed on the connecting member (4), the motor gear (12) is keyed on the output shaft of the motor (13), and the threaded rod (14) rotates and passes through the connecting member (4).

2. The ultra-short radius of curvature horizontal well directional tool according to claim 1, characterized in that: The gear (15) is sleeved on the threaded rod (14), and the surface of the threaded rod (14) is meshed with the surface of the motor gear (12).

3. The ultra-short radius of curvature horizontal well directional tool according to claim 1, characterized in that: The inner surface of the threaded sleeve (10) is threadedly connected to the outer surface of the threaded rod (14), and one end of the arc-shaped support member (11) is sleeved on the threaded sleeve (10).

4. The ultra-short radius of curvature horizontal well directional tool according to claim 1, characterized in that: The other end of the arc-shaped support member (11) is sleeved on the slide rod sleeve (9), the slide rod sleeve (9) slides on the surface of the limit slide rod (8), and the limit slide rod (8) is welded to the connecting member (4).

5. The ultra-short radius of curvature horizontal well directional tool according to claim 1, characterized in that: The interior of the connecting piece (4) is rotatably connected to a guide block body (6), and the surface of the guide block body (6) is sleeved with a circular rack (3).

6. The ultra-short radius of curvature horizontal well directional tool according to claim 1, characterized in that: The interior of the connecting piece (4) is welded with an inlet pipe (1), and the surface of the inlet pipe (1) is screw-mounted with a motor (2).

7. The ultra-short radius of curvature horizontal well directional tool according to claim 6, characterized in that: The output shaft key pin of the motor (2) is equipped with a motor gear (5), the surface of the motor gear (5) is meshed with the surface of the annular rack (3), and a drill bit (7) is installed on the lower surface of the guide block body (6).

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