Blowout preventer slip for oil exploitation

Abstract

The utility model relates to the technical field of oil exploitation equipment, in particular to an oil exploitation blowout preventer slip which comprises a main body, the side face of the main body is fixedly connected with a connecting assembly, and the side face of the connecting assembly is fixedly connected with a blowout preventer assembly. The slip body is made of high-strength alloy steel, the slip has good corrosion resistance and deformation resistance and can bear high-pressure and high-temperature environments in the oil exploitation process, the epoxy resin coating is arranged on the surface of the slip body, the corrosion resistance of the slip is further enhanced, the corrosion resistance of the slip is improved, and the service life of the slip is prolonged. The slip can stably work for a long time in a severe oil exploitation environment, blowout accidents are effectively prevented, the sealing performance is effectively improved through the synergistic effect of the metal sealing ring and the sealing ring, pressure gas in a well is prevented from leaking, the supporting frame can provide stable supporting force for the slip body, and the service life of the slip is prolonged. It is ensured that the slips keep good shape and stability in the working process, and deformation caused by uneven stress is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, specifically to a blowout preventer slip for oil extraction. Background Technology

[0002] In oil extraction, a blowout is a serious safety accident that not only leads to huge economic losses but also poses a serious threat to the environment and personnel safety. A blowout preventer (BOP) is a key piece of equipment used in oil extraction to prevent blowouts. Slips, as an important component of the BOP, are mechanical devices installed inside the BOP. Their main purpose is to firmly secure the well casing during oil extraction, preventing it from moving or being pushed out by well pressure under harsh environments such as high pressure and high temperature. This ensures that the BOP can effectively seal the wellhead and prevent blowout accidents.

[0003] Existing blowout preventer (BOP) slips are prone to deformation under prolonged high pressure. This deformation causes the sealing surface between the slip and the well casing to loosen, creating tiny gaps. These gaps gradually widen under high-pressure gas, eventually leading to seal failure. Once the seal fails, high-pressure fluid inside the well will erupt from these gaps, causing a blowout. Blowouts not only waste oil resources but can also trigger secondary disasters such as fires and explosions, posing a serious threat to human safety and the surrounding environment. Existing BOP slips also present numerous inconveniences during installation and removal. Traditional slips have complex structures, requiring multiple steps and tools for installation, making the process cumbersome and time-consuming. Removal is also difficult due to the tight fit between the slip and the well casing, as well as potential corrosion and adhesion issues. Therefore, a new type of BOP slip for oil extraction is needed to address these problems. Utility Model Content

[0004] To address the issue that existing blowout preventer (BOP) slips are prone to deformation under prolonged high pressure, this invention aims to provide a blowout preventer slip that solves the problems described in the background. This deformation leads to a loose seal between the slip and the well casing, creating tiny gaps. These gaps widen under high-pressure gas, eventually causing seal failure. Once the seal fails, high-pressure fluid from the well will erupt through these gaps, triggering a blowout. Blowouts not only waste oil resources but can also cause secondary disasters such as fires and explosions, posing a serious threat to human safety and the surrounding environment. Furthermore, existing BOP slips present numerous inconveniences during installation and removal. Traditional slips have complex structures, requiring multiple steps and tools for installation, making the process cumbersome and time-consuming. Disassembly is also difficult due to the tight fit between the slip and the well casing, as well as potential corrosion and adhesion issues. The purpose of this invention is to provide a blowout preventer slip for oil extraction that addresses the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A blowout preventer slip for oil extraction includes a main body, a connecting assembly fixedly connected to the side of the main body, and a blowout preventer assembly fixedly connected to the side of the connecting assembly.

[0007] The main body includes a base, a slip body is fixedly connected to the top of the base, and a support frame is fixedly connected inside the slip body;

[0008] The connecting assembly includes a flange, a metal sealing ring is fixedly connected to the side of the flange, and a sealing ring is provided on the side of the metal sealing ring.

[0009] As a preferred embodiment of this utility model, the slip body is made of high-strength alloy steel, and the surface of the slip body is coated with an epoxy resin coating.

[0010] As a preferred embodiment of this utility model, an input well pipe is fixedly connected to the side of the base, and a delivery well pipe is fixedly connected to the side of the base.

[0011] As a preferred embodiment of this utility model, the flange has a through hole inside, and there are two flanges and metal sealing rings.

[0012] As a preferred embodiment of this utility model, the flange has a threaded rod inside, a spring washer is provided on the side of the threaded rod, and a nut is threadedly connected to the side of the spring washer.

[0013] As a preferred embodiment of this utility model, four threaded rods, spring washers, and nuts are provided.

[0014] As a preferred embodiment of this utility model, the blowout preventer assembly includes a blowout preventer body, and a top cover is fixedly connected to the top of the blowout preventer body.

[0015] As a preferred embodiment of this utility model, a connecting well pipe is fixedly connected to the side of the blowout preventer body, and an output well pipe is fixedly connected to the side of the blowout preventer body.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the slip body is made of high-strength alloy steel, which has good corrosion resistance and deformation resistance, and can withstand the high pressure and high temperature environment in the oil extraction process. The surface of the slip body is coated with epoxy resin, which further enhances its corrosion resistance, adapts to different types of oil extraction environments, reduces maintenance costs, improves the corrosion resistance of the slip, and can work stably for a long time in harsh oil extraction environments, effectively preventing blowout accidents.

[0018] 2. In this utility model, by utilizing the synergistic effect of the metal sealing ring and the sealing ring, the sealing performance is effectively improved, preventing the leakage of pressurized gas in the well. The support frame can provide stable support for the slip body, ensuring that the slip maintains good shape and stability during operation and avoiding deformation caused by uneven force. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the blowout preventer assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the KOV assembly of this utility model.

[0023] In the diagram: 1. Main body; 101. Base; 102. Slip body; 103. Support frame; 104. Input well casing; 105. Delivery well casing; 2. Connecting assembly; 201. Flange; 202. Metal sealing ring; 203. Sealing ring; 204. Perforation; 205. Threaded rod; 206. Spring washer; 207. Nut; 3. Blowout preventer assembly; 301. Blowout preventer body; 302. Top cover; 303. Connecting well casing; 304. Output well casing. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0026] A blowout preventer slip for oil extraction includes a main body 1, a connecting component 2 fixedly connected to the side of the main body 1, and a blowout preventer component 3 fixedly connected to the side of the connecting component 2.

[0027] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the main body 1 includes a base 101, with a slip body 102 fixedly connected to the top of the base 101. A support frame 103 is fixedly connected inside the slip body 102. The connecting assembly 2 includes a flange 201, with a metal sealing ring 202 fixedly connected to the side of the flange 201. A sealing ring 203 is provided on the side of the metal sealing ring 202. The slip body 102 is made of high-strength alloy steel, which has good corrosion resistance and deformation resistance, and can withstand the high pressure and high temperature environment in the oil extraction process. The surface of the slip body 102 is coated with epoxy resin to further enhance its corrosion resistance, adapt to different types of oil extraction environments, reduce maintenance costs, improve the corrosion resistance of the slip, and enable it to work stably for a long time in harsh oil extraction environments, effectively preventing blowout accidents.

[0028] The slip body 102 is made of high-strength alloy steel and coated with epoxy resin. The input well pipe 104 and the delivery well pipe 105 are fixedly connected to the side of the base 101. The flange 201 has a perforation 204 inside. There are two flanges 201 and two metal sealing rings 202. The synergistic effect of the metal sealing rings 202 and the sealing rings 203 effectively improves the sealing performance and prevents leakage of pressurized gas in the well. The support frame 103 can provide stable support for the slip body 102, ensuring that the slip maintains good shape and stability during operation and avoiding deformation caused by uneven stress.

[0029] In this embodiment, as Figure 1 and Figure 2 As shown, the flange 201 has a threaded rod 205 inside, a spring washer 206 on the side of the threaded rod 205, and a nut 207 threadedly connected to the side of the spring washer 206. There are four threaded rods 205, spring washers 206, and nuts 207. The blowout preventer assembly 3 includes a blowout preventer body 301. A top cover 302 is fixedly connected to the top of the blowout preventer body 301. A connecting well pipe 303 and an output well pipe 304 are fixedly connected to the side of the blowout preventer body 301. The connection between the slip body 102 and the blowout preventer body 301 is a threaded connection, which ensures the reliability of the connection and improves the convenience of installation and disassembly. This greatly improves the efficiency of slip installation and disassembly, shortens the operation time, reduces labor intensity, and improves the overall efficiency of oil extraction.

[0030] The working process of this utility model is as follows: When the slip of an oil blowout preventer designed according to this scheme is in operation, the two flanges 201 are pressed together, so that the two metal sealing rings 202 and the sealing ring 203 are in contact. Then, the threaded rod 205 is inserted through the hole 204 and fixed with the nut 207. Thus, the slip body 102 is connected to the blowout preventer body 301 by threaded connection. When transporting oil, the slip body 102 is made of high-strength alloy steel, which has good corrosion resistance and deformation resistance and can withstand the high pressure and high temperature environment in the oil extraction process. The surface of the slip body 102 is coated with epoxy resin to further enhance its corrosion resistance. The synergistic effect of the metal sealing rings 202 and the sealing ring 203 effectively improves the sealing performance and prevents the leakage of pressurized gas in the well. The support frame 103 can provide stable support for the slip body 102, ensuring that the slip maintains good shape and stability during operation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blowout preventer slip for oil extraction, comprising a main body (1), characterized in that: A connecting component (2) is fixedly connected to the side of the main body (1), and a blowout preventer component (3) is fixedly connected to the side of the connecting component (2). The main body (1) includes a base (101), the top of the base (101) is fixedly connected to a slip body (102), and the inside of the slip body (102) is fixedly connected to a support frame (103); The connecting assembly (2) includes a flange (201), a metal sealing ring (202) is fixedly connected to the side of the flange (201), and a sealing ring (203) is provided on the side of the metal sealing ring (202).

2. The blowout preventer slip for oil extraction according to claim 1, characterized in that, The slip body (102) is made of high-strength alloy steel, and the surface of the slip body (102) is coated with an epoxy resin coating.

3. The blowout preventer slip for oil extraction according to claim 1, characterized in that, An input well pipe (104) is fixedly connected to the side of the base (101), and a delivery well pipe (105) is fixedly connected to the side of the base (101).

4. The blowout preventer slip for oil extraction according to claim 1, characterized in that, The flange (201) has a perforation (204) inside, and there are two flanges (201) and metal sealing rings (202).

5. A blowout preventer slip for oil extraction according to claim 1, characterized in that, The flange (201) is provided with a threaded rod (205) inside, and a spring washer (206) is provided on the side of the threaded rod (205). A nut (207) is threadedly connected to the side of the spring washer (206).

6. A blowout preventer slip for oil extraction according to claim 5, characterized in that, The threaded rod (205), spring washer (206), and nut (207) are provided in four parts.

7. A blowout preventer slip for oil extraction according to claim 1, characterized in that, The blowout preventer assembly (3) includes a blowout preventer body (301), and a top cover (302) is fixedly connected to the top of the blowout preventer body (301).

8. A blowout preventer slip for oil extraction according to claim 7, characterized in that, A connecting well pipe (303) is fixedly connected to the side of the blowout preventer body (301), and an output well pipe (304) is fixedly connected to the side of the blowout preventer body (301).

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