Wellhead anti-falling device for drilling engineering
By designing a wellhead anti-fall device for drilling engineering wellheads including anti-fall plates, telescopic covers and anti-fall curtains, the problem of falling objects at the drilling wellheads is solved, and the effect of reducing debris falling into the well is achieved, and the safety of the wellheads is improved.
Patent Information
- Application Number
- CN202421471043.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
Drilling wellhead is prone to fall accidents, and existing anti-falling devices can easily cause debris to fall into the well during the handling process.
A wellhead anti-fall device for drilling engineering wellheads is designed, including a cover plate, drill rod hole and fall prevention component arranged at the wellheads. The anti-falling object assembly consists of two anti-falling object plates, a telescopic cover and an anti-falling object curtain. The rotation of the baffle and the magnetic attachment of the anti-falling object curtain reduce the phenomenon of debris falling.
It effectively reduces the phenomenon of debris falling from between baffles and the surface of baffles into the drilling well, and improves the safety of the wellhead and the stability of downhole operations.
Smart Images
Figure CN222668155U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling engineering, in particular to a device for preventing objects from falling from a wellhead of a drilling engineering well. Background Art
[0002] Drilling is a series of drilling activities carried out underground using drilling tools such as drill bits and drill pipes. Accidents of falling objects are prone to occur at the wellhead, requiring the use of salvage tools for salvage, and underground accidents such as drill sticking are prone to occur.
[0003] In the prior art, a drilling wellhead is provided with an anti-falling object plate, which is made of two semicircular steel plates, one end of which is connected by a hinge and the other end is locked by a locking mechanism. A mounting hole for the drill rod to pass through is provided in the middle of the anti-falling object plate, and handles are provided on the surfaces of the two steel plates for carrying the steel plates. During the process of carrying the steel plates, debris on the surface of the anti-falling object plate is easy to fall into the well. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a device for preventing debris from falling into the wellhead of a drilling project, so as to reduce the occurrence of debris falling into the well.
[0005] The technical solution adopted by the utility model is:
[0006] A device for preventing falling objects from a wellhead in a drilling project comprises a cover plate arranged at the wellhead, a drill pipe hole opened in the center of the cover plate, and an anti-falling object assembly arranged on the cover plate, wherein the cover plate is connected to the wellhead via a connecting ring, the cover plate comprises two baffles connected to the drilling rotation, the anti-falling object assembly comprises two anti-falling object plates and a telescopic cover, the two anti-falling object plates are arranged at the bottom of the two baffles, the telescopic cover is arranged between the circumferential side of the baffle and the connecting ring, the two baffles rotate in a direction away from each other, driving the ends of the two anti-falling object plates away from the baffles to approach each other until they abut against each other.
[0007] When the anti-falling object device needs to be moved, the two baffles are rotated. The two anti-falling object plates reduce the phenomenon of debris falling from between the two baffles into the drilling well. The telescopic cover opens with the rotation of the two baffles, reducing the phenomenon of debris on the baffle surface falling into the drilling well.
[0008] Optionally, the bottom of the connecting ring abuts against the top of the wellhead, the two baffles are semicircular, the diameter sides of the two baffles abut against each other, the drill rod hole is arranged at the center of the cover plate, and the baffle is rotatably connected to the connecting ring through a rotating shaft.
[0009] Optionally, the two rotating shafts are arranged parallel to the diameter of the baffle, the two rotating shafts are arranged on both sides of the drill rod hole, the anti-falling object plate is extended along the axial direction of the rotating shaft, and the extension direction of the two anti-falling object plates is respectively in the same vertical plane with the axial direction of the two rotating shafts.
[0010] Optionally, the anti-falling object assembly also includes an anti-falling object curtain arranged on the two baffles, the two sides of the anti-falling object curtains that are far away from each other are fixedly connected to the connecting ring, and the two sides of the anti-falling object curtains that are close to each other are respectively provided with two magnetic rods, the two magnetic rods are respectively arranged on the top side and the bottom side of the two anti-falling object curtains, and the magnetic rods are parallel to the diameter side of the baffle.
[0011] The two anti-falling object curtains are connected by magnetic attraction, which reduces the occurrence of debris falling onto the baffle surface.
[0012] Optionally, two sides of the two magnetic rods that are away from each other abut against each other.
[0013] Optionally, a handle is provided on the top side of the baffle.
[0014] Optionally, the falling object protection plate is an arc-shaped plate, the bottom edge of the arc-shaped plate is arranged away from the baffle, the bottom edge of the arc-shaped plate is parallel to the diameter of the baffle, and the length of the bottom edge of the arc-shaped plate is equal to the diameter length of the baffle.
[0015] Optionally, the rotating shaft and the baffle are rotatably connected via a damping bearing.
[0016] The beneficial effect of the utility model is that when it is necessary to move the anti-falling object device, the two baffles are rotated, and the two anti-falling object plates reduce the phenomenon of debris falling from between the two baffles into the drilling well. The telescopic cover opens with the rotation of the two baffles, reducing the phenomenon of debris on the baffle surface falling into the drilling well. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a cross-sectional view of the utility model when the two baffles are rotated 45°;
[0019] The numbers and names in the figure correspond to each other as follows: 1. drill rod hole; 2. connecting ring; 3. baffle; 31. handle; 4. anti-falling object plate; 5. telescopic cover; 6. rotating shaft; 7. anti-falling object curtain; 8. magnetic suction rod. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-2, the utility model provides a technical solution:
[0022] A device for preventing falling objects from a wellhead in a drilling project comprises a cover plate arranged at the wellhead, a drill pipe hole 1 opened in the center of the cover plate, and an anti-falling object assembly arranged on the cover plate, wherein the cover plate is connected to the wellhead via a connecting ring 2, the bottom of the connecting ring 2 abuts against the top of the wellhead, the connecting ring 2 is detachably connected to the ground of the drilling wellhead via a locking bolt, the drill pipe hole 1 is arranged in the center of the cover plate, the cover plate comprises two baffles 3 connected to the drilling rotation, the two baffles 3 are arranged in a semicircular shape, the diameter sides of the two baffles 3 abut against each other, the baffle 3 is rotatably connected to the connecting ring 2 via a rotating shaft 6, the two rotating shafts 6 are arranged parallel to the diameter of the baffle 3, the two rotating shafts 6 are arranged on both sides of the drill pipe hole 1, the rotating shaft 6 horizontally penetrates the baffle 3 and is fixedly connected to the baffle 3, and the two ends of the rotating shaft 6 are rotatably connected to the connecting ring 2 via damping bearings; a handle 31 is arranged on the top side of the baffle 3 to facilitate the rotation of the baffle 3.
[0023] The anti-falling object assembly includes two anti-falling object plates 4 and a telescopic cover 5. The top sides of the two anti-falling object plates 4 are fixedly connected to the bottom of the two baffles 3 respectively. The anti-falling object plate 4 is an arc-shaped plate. The bottom edge of the arc-shaped plate is set away from the baffle 3, the bottom edge of the arc-shaped plate is parallel to the diameter of the baffle 3, and the length of the bottom edge of the arc-shaped plate is equal to the diameter length of the baffle 3. The anti-falling object plate 4 is extended along the axial direction of the rotating shaft 6. The extension directions of the two anti-falling object plates 4 are respectively in the same vertical plane with the axial directions of the two rotating shafts 6. The anti-falling object plate 4 is perpendicular to the baffle 3. The rotation angle of the baffle 3 is 0-45°. In this embodiment, the two baffles 3 are rotated 45° in the direction away from each other, and the bottom sides of the two anti-falling object plates 4 abut against each other.
[0024] The telescopic cover 5 is arranged between the circumferential side of the baffle 3 and the connecting ring 2. The telescopic cover 5 is bonded to the baffle 3 and the connecting ring 2. The two baffles 3 rotate in directions away from each other, driving the ends of the two anti-falling plates 4 away from the baffles 3 to move closer to each other until they abut against each other.
[0025] The anti-falling object assembly also includes an anti-falling object curtain 7 arranged on the two baffles 3. The two sides of the anti-falling object curtains 7 that are far away from each other are fixedly connected to the connecting ring 2. Two magnetic rods 8 are respectively arranged on the two sides of the anti-falling object curtains 7 that are close to each other. The two magnetic rods 8 are respectively arranged on the top and bottom sides of the two anti-falling object curtains 7. The magnetic rods 8 are parallel to the diameter side of the baffle 3, and the two sides of the two magnetic rods 8 that are far away from each other abut against each other.
[0026] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A device for preventing falling objects at the wellhead of a drilling project, characterized in that: The invention comprises a cover plate arranged at a wellhead, a drill pipe hole (1) provided at the center of the cover plate, and an anti-falling object assembly arranged on the cover plate, wherein the cover plate is connected to the wellhead via a connecting ring (2), the cover plate comprises two baffles (3) connected to the drilling rotation, the anti-falling object assembly comprises two anti-falling object plates (4) and a telescopic cover (5), the two anti-falling object plates (4) are arranged at the bottom of the two baffles (3), the telescopic cover (5) is arranged between the circumferential side of the baffle (3) and the connecting ring (2), and the two baffles (3) rotate in a direction away from each other, driving the ends of the two anti-falling object plates (4) away from the baffles (3) to approach each other until they abut against each other.
2. A device for preventing falling objects from a wellhead in a drilling project according to claim 1, characterized in that: The bottom of the connecting ring (2) abuts against the top of the wellhead, the two baffles (3) are semicircular, the diameter sides of the two baffles (3) abut against each other, the drill rod hole (1) is arranged at the center of the cover plate, and the baffle (3) is rotatably connected to the connecting ring (2) via a rotating shaft (6).
3. A device for preventing falling objects from a wellhead in a drilling project according to claim 2, characterized in that: The two rotating shafts (6) are arranged parallel to the diameter of the baffle (3); the two rotating shafts (6) are arranged on both sides of the drill rod hole (1); the anti-falling plate (4) is extended along the axial direction of the rotating shaft (6); and the extension direction of the two anti-falling plates (4) is respectively in the same vertical plane as the axial direction of the two rotating shafts (6).
4. The device for preventing falling objects from a wellhead in a drilling project according to claim 1, characterized in that: The anti-falling object assembly also includes an anti-falling object curtain (7) arranged on the two baffles (3); the two sides of the two anti-falling object curtains (7) that are far away from each other are fixedly connected to the connecting ring (2); the two sides of the two anti-falling object curtains (7) that are close to each other are respectively provided with two magnetic suction rods (8); the two magnetic suction rods (8) are respectively arranged on the top side and the bottom side of the two anti-falling object curtains (7); and the magnetic suction rods (8) are parallel to the diameter side of the baffle (3).
5. A device for preventing falling objects from a wellhead in a drilling project according to claim 4, characterized in that: The two sides of the two magnetic attraction rods (8) that are away from each other abut against each other.
6. The device for preventing falling objects from a wellhead in a drilling project according to claim 1, characterized in that: A handle (31) is provided on the top side of the baffle (3).
7. The device for preventing falling objects from a wellhead in a drilling project according to claim 1, characterized in that: The falling object prevention plate (4) is an arc-shaped plate, the bottom edge of which is arranged away from the baffle (3), the bottom edge of which is parallel to the diameter of the baffle (3), and the length of the bottom edge of which is equal to the diameter of the baffle (3).
8. The device for preventing falling objects from a wellhead in a drilling project according to claim 2, characterized in that: The rotating shaft (6) and the baffle (3) are rotationally connected via a damping bearing.