Slurry blowout preventer

Abstract

The utility model discloses a mud blowout preventer, and relates to the technical field of mud treatment. The mud blowout prevention device comprises an upper blowout prevention box and a convenient assembly, a lower blowout prevention box is installed on the upper blowout prevention box in a hinged mode, the convenient assembly is located on the upper blowout prevention box and the lower blowout prevention box and comprises a cavity, a top sealing ring, a rectangular opening and a side face sealing strip, the top sealing ring is installed in the cavity in a clamped mode, and the side face sealing strip is installed in the rectangular opening in a clamped mode. And the top sealing ring and the side sealing strips are made of nitrile rubber buna. According to the device, the contact position of a drill rod and the device can be sealed, through the arrangement of the top sealing ring and the side face sealing strips, the device has good corrosion resistance and excellent sealing performance in the using process, the cavity can replace various sealing rings with different diameters, the device is more universal, and the using flexibility of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of mud treatment technology, and in particular to a mud blowout prevention device. Background Technology

[0002] Mud blowout preventers are devices used to prevent blowouts during oil drilling. They typically use blowout preventer boxes for blowout prevention. In the existing technology, some blowout preventers need to be fitted onto the outer wall of the drill pipe, and the size of the opening used for fitting is mostly fixed, which reduces the flexibility of the blowout preventer's use.

[0003] In summary, this application proposes a mud blowout prevention device to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a mud blowout preventer that can solve the problem that some existing blowout preventers need to be fitted onto the outer wall of the drill pipe, and the size of the opening used for fitting is mostly fixed, which reduces the flexibility of the blowout preventer in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mud blowout preventer, comprising an upper blowout preventer box and a convenient component. A lower blowout preventer box is hinged to the upper blowout preventer box. The upper and lower blowout preventer boxes are made of 5052 aluminum alloy plate by bending and welding, which has excellent corrosion resistance and aging resistance. At the same time, it is 66% lighter than stainless steel of the same volume, making it easier to use and operate. The convenient component is located on the upper and lower blowout preventer boxes. The convenient component includes a cavity, a top sealing ring, a rectangular opening, and a side sealing strip. The top sealing ring is snapped into the cavity, and the side sealing strip is snapped into the rectangular opening. The top sealing ring and the side sealing strip are made of nitrile rubber.

[0006] Preferably, the inner walls of both the upper and lower blowout preventers are fixedly connected with support ring plates, which facilitates the use of the upper and lower blowout preventers and provides support.

[0007] Preferably, the top and bottom of the upper and lower blowout preventers are fixedly connected with sealing plates, which are configured to partially seal the top and bottom of the upper and lower blowout preventers.

[0008] Preferably, a cavity is formed between the sealing plate and the support ring plate, and a rectangular opening is formed between the upper and lower blowout preventers. In use, the top sealing ring can be replaced to improve the flexibility of the device. Through the combined use of the cavity, the top sealing ring, the rectangular opening, and the side sealing strip, the contact position between the drill rod and the device can be sealed. The top sealing ring and the side sealing strip provide the device with good corrosion resistance and excellent sealing performance. The cavity can be replaced with sealing rings of various diameters, making the device more versatile and improving its flexibility of use.

[0009] Preferably, the outer wall of the lower blowout preventer is fixedly connected to a slurry pipe and communicates with the lower blowout preventer, which facilitates the outflow of slurry.

[0010] Preferably, a handle base is fixedly connected to the rear side of the upper blowout preventer, and a buckle is provided on the handle base. One end of the buckle is threaded, and a through hole is provided on the handle base. The buckle is threadedly installed on the through hole. A retainer is fixedly connected to the rear side of the lower blowout preventer, and one end of the buckle is fastened to the retainer. This arrangement facilitates the fixation of the device.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the mud blowout preventer, through the combined use of the cavity, top sealing ring, rectangular opening and side sealing strip, can seal the contact position between the drill rod and the device. The top sealing ring and side sealing strip provide the device with good corrosion resistance and excellent sealing performance. The cavity can be replaced with sealing rings of various diameters, making the device more versatile and improving the flexibility of its use. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0014] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a cross-sectional view (AA) of the present invention.

[0017] Reference numerals: 1. Upper BOP; 2. Lower BOP; 3. Sealing plate; 4. Support ring plate; 5. Cavity; 6. Top sealing ring; 7. Rectangular opening; 8. Side sealing strip; 9. Slurry pipe; 10. Handle seat; 11. Buckle ring; 12. Retainer. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a mud blowout preventer, including an upper blowout preventer box 1 and a convenient component. A lower blowout preventer box 2 is hinged to the upper blowout preventer box 1. Both the upper and lower blowout preventer boxes 1 and 2 are made of 5052 aluminum alloy plate by bending and welding, which has excellent corrosion resistance and aging resistance. At the same time, it is 66% lighter than stainless steel of the same volume, making it easier to use and operate. The inner walls of both the upper and lower blowout preventer boxes 1 and 2 are fixedly connected to support ring plates 4, which facilitates the adjustment of the upper and lower blowout preventer boxes 1 and 2. The lower blowout preventer 2 serves a supporting function. Sealing plates 3 are fixedly connected to the top and bottom of both the upper and lower blowout preventers 1 and 2, providing partial sealing to their respective top and bottom. Convenience components are located on the upper and lower blowout preventers 1 and 2. These components include a cavity 5, a top sealing ring 6, a rectangular opening 7, and side sealing strips 8. The top sealing ring 6 is snapped into the cavity 5, and the side sealing strip 8 is snapped into the rectangular opening 7. The sealing ring 6 and the side sealing strip 8 are made of nitrile rubber. A cavity 5 is formed between the sealing plate 3 and the support ring plate 4. A rectangular opening 7 is formed between the upper blowout preventer 1 and the lower blowout preventer 2. When in use, the top sealing ring 6 is replaced to improve the flexibility of the device. When in use, the upper blowout preventer 1 and the lower blowout preventer 2 are fitted onto the outside of the drill pipe. Then, the other end of the retainer 11 is manually turned to adjust the retainer 11 to a suitable length. At the same time, one end of the retainer 11 is fastened to the retainer 12 to fix the upper blowout preventer 1 and the lower blowout preventer 2, so that the mud can flow out from the mud pipe 9. Through the cooperation of the cavity 5, the top sealing ring 6, the rectangular opening 7 and the side sealing strip 8, the contact position between the drill pipe and the device can be sealed. The setting of the top sealing ring 6 and the side sealing strip 8 gives the device good corrosion resistance and excellent sealing performance. The cavity 5 can be replaced with sealing rings of various diameters, making the device more versatile and improving the flexibility of the device.

[0020] Furthermore, a slurry pipe 9 is fixedly connected to the outer wall of the lower blowout preventer 2 and communicates with the lower blowout preventer 2. Its arrangement facilitates the outflow of slurry. A handle seat 10 is fixedly connected to the rear side of the upper blowout preventer 1. A retainer 11 is provided on the handle seat 10. One end of the retainer 11 is threaded. A through hole is opened on the handle seat 10. The retainer 11 is threaded onto the through hole. A retainer 12 is fixedly connected to the rear side of the lower blowout preventer 2. One end of the retainer 11 is fastened to the retainer 12. Its arrangement facilitates the fixation of the device.

[0021] Working principle: When in use, the upper blowout preventer 1 and the lower blowout preventer 2 are fitted onto the outside of the drill rod. Then, manually turn the other end of the retainer 11 to adjust the retainer 11 to a suitable length. At the same time, fasten one end of the retainer 11 onto the retainer 12 to fix the upper blowout preventer 1 and the lower blowout preventer 2, so that the mud can flow out from the mud pipe 9.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A blowout preventer for a slurry, characterized in that Include: The upper blowout preventer box (1), the lower blowout preventer box (2) is hinged on the upper blowout preventer box (1); Convenient components, convenient components are located on the upper blowout preventer box (1) and the lower blowout preventer box (2), convenient components include cavity (5), top sealing ring (6), rectangular mouth (7) and side sealing strip (8), cavity (5) is connected in the top sealing ring (6) of the inner joint, rectangular mouth (7) is connected in the side sealing strip (8) of the inner joint; The outer wall of the lower blowout preventer box (2) is fixedly connected with the flow pipe (9) and is communicated with the lower blowout preventer box (2); The rear side of the upper blowout preventer box (1) is fixedly connected with the handle seat (10), the handle seat (10) is provided with the buckle ring (11), one end of the buckle ring (11) is provided with a thread, the handle seat (10) is provided with a through hole, the buckle ring (11) is screw mounted on the through hole, the rear side of the lower blowout preventer box (2) is fixedly connected with the retainer (12), one end of the buckle ring (11) is buckled on the retainer (12).

2. A blowout preventer according to claim 1, characterized in that: The inner wall of the upper blowout preventer box (1) and the lower blowout preventer box (2) is fixedly connected with the support ring plate (4).

3. A blowout preventer according to claim 2, wherein: The top and bottom of the upper blowout preventer box (1) and the lower blowout preventer box (2) are fixedly connected with the sealing plate (3).

4. A blowout preventer according to claim 3, wherein: The sealing plate (3) and the support ring plate (4) form a cavity (5), and the upper blowout preventer box (1) and the lower blowout preventer box (2) form a rectangular mouth (7).

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