Wellhead drilling tool centralizing device

Abstract

The utility model provides a wellhead drilling tool centralizing device which comprises a supporting cylinder, a limiting plate is arranged on the side face of the supporting cylinder, and a plurality of centralizing units are evenly distributed on the side wall of the supporting cylinder and located above the limiting plate. The righting unit comprises a fixing frame, a driving arm and a mounting seat, and the fixing frame is fixedly arranged on the side wall of the supporting cylinder; one end of the driving arm is hinged to the fixed frame; the mounting seat is rotationally arranged at the other end of the driving arm, and a supporting ball body is movably arranged on the mounting seat; a receding groove is formed in the position, corresponding to the fixing frame, of the supporting cylinder, a driving unit is installed on the fixing frame, and the driving unit is used for making contact with the driving arm and driving the driving arm to rotate, so that the mounting base penetrates through the receding groove and then supports the ball to make contact with the side wall of the drilling tool. The centralizer for the drilling tool is used for centralizing the drilling tool in actual use, and has the advantage of being convenient and fast to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a wellhead drilling tool straightening device. Background Art

[0002] During the oil drilling process, a drill pipe is required for drilling. The diameter of the drill pipe itself is smaller than the diameter of the gear installed at its front end, which causes a gap between the drill pipe and the well wall and puts the drill pipe in an unstable state. Therefore, in order to ensure the stability of the drill pipe during drilling operations and to facilitate the control of the drill pipe, a straightening device is generally installed at the end of the drill pipe.

[0003] The righting device in the prior art needs to be fixed on a bracket when in use, which is very inconvenient to operate.

[0004] For example, the utility model with the announcement number CN221169501U discloses an oil drilling and straightening device, including a fixed plate, a through hole is opened at the center position of the fixed plate, and a limiting mechanism is set on the top of the fixed plate, and the limiting mechanism includes a vertical plate. The limiting plate can be adjusted by a hand wheel and a screw rod, and the limiting plate drives the rolling mechanism to approach each other and squeeze and limit the two sides of the drill rod. The ball contacts the surface of the drill rod and will not affect the rotation and lifting of the drill rod. It is convenient to limit and straighten drill rods of different diameters through the rolling mechanism, and it is not limited by the drilling diameter. The above utility model needs to fix the fixed plate in actual use, and there is still a technical problem of inconvenient operation. Utility Model Content

[0005] The purpose of the utility model is to provide a wellhead drilling tool righting device, which is used to realize the righting operation of the drilling tool in actual use and has the advantage of convenient operation.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A wellhead drilling tool straightening device comprises a support tube, a limit plate is arranged on the side of the support tube, and a plurality of straightening units are uniformly distributed on the side wall of the support tube and above the limit plate;

[0008] The righting unit includes:

[0009] a fixed frame, the fixed frame being fixedly mounted on the side wall of the supporting tube;

[0010] a driving arm, one end of which is hinged to the fixing frame;

[0011] a mounting seat rotatably mounted on the other end of the driving arm, with a supporting ball movably mounted on the mounting seat;

[0012] Among them, a clearance groove is provided on the support tube at a position corresponding to the fixed frame, and a driving unit is installed on the fixed frame. The driving unit is used to contact the driving arm and drive the driving arm to rotate, so that the mounting seat passes through the clearance groove and the supporting sphere contacts the side wall of the drilling tool.

[0013] Furthermore, in some preferred implementation cases, the righting unit further includes a tension spring, one end of which is connected to the driving arm, and the other end of which is connected to the fixed frame.

[0014] Furthermore, in some preferred implementation cases, the driving arm is connected to a connecting rod, and one end of the tension spring is connected to the connecting rod.

[0015] Furthermore, in some preferred implementation cases, the driving unit includes a screw rod, which is rotatably mounted on the fixed frame.

[0016] Furthermore, in some preferred implementation cases, a ball is provided at the end of the screw.

[0017] Furthermore, in some preferred implementation cases, a handle is provided on the limiting plate.

[0018] Furthermore, in some preferred implementation cases, a rotating wheel is provided at the end of the screw.

[0019] Furthermore, in some preferred implementation cases, the driving unit is a telescopic rod, the telescopic rod is installed on the fixed frame, and the telescopic rod is a pneumatic or hydraulic telescopic rod.

[0020] Furthermore, in some preferred implementation cases, the mounting seat and the driving arm are rotationally connected via a rotating shaft.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The utility model is mainly composed of a support tube, a limit plate and a plurality of straightening units. In actual use, the support tube is extended into the drilling well, and the provided limit plate can serve the purpose of limiting. After the drilling tool passes through the interior of the support tube, the driving unit drives the driving arm to rotate, so that the supporting sphere contacts the side of the drilling tool, thereby supporting the drilling tool to play a straightening role. In this application, since the support tube is directly extended into the drilling well, the support tube cooperates with the drilling well, which can realize the rapid loading of the straightening device and improve the convenience during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 For this utility model Figure 1 main view.

[0026] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0027] Figure 4 This is a schematic diagram of the utility model in use.

[0028] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of point A in the middle.

[0029] Reference numerals:

[0030] 101 supporting tube, 102 limiting plate, 103 straightening unit, 104 fixing frame, 105 driving arm, 106 mounting seat, 107 supporting sphere, 108 giving way groove, 109 driving unit, 110 tension spring, 111 connecting rod, 112 screw, 113 sphere, 114 handle, 115 rotating wheel, 116 drilling tool. DETAILED DESCRIPTION

[0031] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying 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 embodiments of the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0035] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] See Figure 1-Figure 5 This embodiment discloses a wellhead drilling tool straightening device, including a support tube 101, a limit plate 102 is set on the side of the support tube 101, and a plurality of straightening units 103 are evenly distributed on the side wall of the support tube 101 and above the limit plate 102; in this embodiment, there are three straightening units 103.

[0039] The righting unit 103 includes:

[0040] a fixed frame 104, the fixed frame 104 being fixed to the side wall of the support tube 101;

[0041] a driving arm 105 , one end of which is hinged to the fixed frame 104 ;

[0042] a mounting base 106 rotatably mounted on the other end of the driving arm 105 , and a supporting ball 107 movably mounted on the mounting base 106 ;

[0043] Among them, a clearance groove 108 is provided on the support tube 101 at a position corresponding to the fixed frame 104, and a driving unit 109 is installed on the fixed frame 104. The driving unit 109 is used to contact the driving arm 105 and drive the driving arm 105 to rotate, so that the mounting seat 106 passes through the clearance groove 108 and the supporting sphere 107 contacts the side wall of the drilling tool 116.

[0044] The present invention is mainly composed of a support tube 101, a limit plate 102 and a plurality of straightening units 103. In actual use, the support tube 101 is extended into the drilling well, and the limit plate 102 provided can serve the purpose of limiting. After the drilling tool 116 passes through the interior of the support tube 101, the driving unit 109 drives the driving arm 105 to rotate, so that the supporting sphere 107 contacts the side of the drilling tool 116, thereby supporting the drilling tool 116 to play a straightening role. In this application, since the support tube 101 is directly extended into the drilling well, the support tube 101 cooperates with the drilling well, which can realize the rapid loading of the straightening device and improve the convenience during operation.

[0045] Furthermore, in some preferred embodiments, the righting unit 103 further includes a tension spring 110, one end of which is connected to the driving arm 105, and the other end of which is connected to the fixing frame 104. The tension spring 110 can be provided to reset the driving arm 105.

[0046] Furthermore, the driving arm 105 is connected to a connecting rod 111 , and one end of the tension spring is connected to the connecting rod 111 .

[0047] In this embodiment, the driving unit 109 includes a screw 112, which is rotatably mounted on the fixed frame 104. In actual use, the driving arm 105 can be moved toward the drilling tool 116 by simply rotating the screw 112 to ensure that the supporting ball 107 is in close contact with the surface of the drilling tool 116.

[0048] Furthermore, a ball 113 is provided at the end of the screw rod 112 so that the end of the screw rod 112 is in rotational contact with the connecting rod 111 .

[0049] Furthermore, a handle 114 is provided on the limiting plate 102. The provided handle 114 facilitates user operation.

[0050] Furthermore, a rotating wheel 115 is provided at the end of the screw 112 .

[0051] As an option, the driving unit 109 is a telescopic rod, which is mounted on the fixed frame 104 and is a pneumatic or hydraulic telescopic rod.

[0052] In actual use, it is only necessary to install the telescopic rod on the support tube 101 so that the movable end of the telescopic rod contacts the driving arm 105 or the connecting rod 111 .

[0053] Furthermore, the mounting base 106 is rotatably connected to the driving arm 105 via a rotating shaft. This arrangement ensures that after the driving arm 105 rotates and tilts, the mounting base 106 always acts vertically on the drilling tool 116.

[0054] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent replacements and improvements 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 wellhead drilling tool straightening device, characterized by: It includes a support cylinder, a limit plate is provided on the side of the support cylinder, and a plurality of straightening units are evenly distributed on the side wall of the support cylinder and above the limit plate; The righting unit includes: a fixed frame, the fixed frame being fixedly mounted on the side wall of the supporting tube; a driving arm, one end of which is hinged to the fixing frame; a mounting seat rotatably mounted on the other end of the driving arm, with a supporting ball movably mounted on the mounting seat; Among them, a clearance groove is provided on the support tube at a position corresponding to the fixed frame, and a driving unit is installed on the fixed frame. The driving unit is used to contact the driving arm and drive the driving arm to rotate, so that the mounting seat passes through the clearance groove and the supporting sphere contacts the side wall of the drilling tool.

2. The wellhead drilling tool centralizing device according to claim 1, characterized in that: The righting unit further comprises a tension spring, one end of which is connected to the driving arm, and the other end of which is connected to the fixing frame.

3. The wellhead drilling tool centralizing device according to claim 2, characterized in that: The driving arm is connected with a connecting rod, and one end of the tension spring is connected to the connecting rod.

4. The wellhead drilling tool centralizing device according to claim 1, characterized in that: The driving unit comprises a screw rod, and the screw rod is rotatably mounted on the fixed frame.

5. The wellhead drilling tool straightening device according to claim 4, characterized in that: The end of the screw is driven by a ball.

6. A wellhead drilling tool centralizing device according to any one of claims 1 to 5, characterized in that: A handle is provided on the limiting plate.

7. The wellhead drilling tool centralizing device according to claim 4, characterized in that: A runner is provided at the end of the screw.

8. The wellhead drilling tool centralizing device according to claim 1, characterized in that: The driving unit is a telescopic rod, which is installed on the fixed frame and is a pneumatic or hydraulic telescopic rod.

9. The wellhead drilling tool centralizing device according to claim 1, characterized in that: The mounting seat is rotatably connected to the driving arm via a rotating shaft.

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