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CN-224228640-U - Blowout preventer slip for petroleum exploitation

CN224228640UCN 224228640 UCN224228640 UCN 224228640UCN-224228640-U

Abstract

The utility model relates to the technical field of petroleum exploitation equipment, in particular to a blowout preventer slip for petroleum exploitation, which comprises a main body, wherein a connecting assembly is fixedly connected to the side surface of the main body, and a blowout preventer assembly is fixedly connected to the side surface of the connecting assembly; the high-strength alloy steel slip is used for manufacturing the slip body, has good corrosion resistance and deformation resistance, can bear high-pressure and high-temperature environments in the petroleum exploitation process, is provided with the epoxy resin coating on the surface of the slip body, further enhances the corrosion resistance of the slip, improves the corrosion resistance of the slip, can stably work for a long time in the severe petroleum exploitation environment, effectively prevents blowout accidents, effectively improves the sealing performance by utilizing the synergistic effect of the metal sealing ring and the sealing ring, prevents gas leakage in a well, and can provide stable supporting force for the slip body, ensure the slip to keep good shape and stability in the working process and avoid deformation caused by uneven stress.

Inventors

  • XU CHENGMING
  • ZHANG CHANGHUA
  • WANG SHEN

Assignees

  • 湖北富深能源科技有限公司

Dates

Publication Date
20260512
Application Date
20250708

Claims (8)

  1. 1. The blowout preventer slip for oil exploitation comprises a main body (1) and is characterized in that a connecting assembly (2) is fixedly connected to the side face of the main body (1), and a blowout preventer assembly (3) is fixedly connected to the side face of the connecting assembly (2); The main body (1) comprises a base (101), the top of the base (101) is fixedly connected with a slip body (102), and the inside of the slip body (102) is fixedly connected with a supporting frame (103); The connecting assembly (2) comprises a flange plate (201), a metal sealing ring (202) is fixedly connected to the side face of the flange plate (201), and a sealing ring (203) is arranged on the side face of the metal sealing ring (202).
  2. 2. The oil production blowout preventer slip of claim 1, wherein the slip body (102) is made of high strength alloy steel, and the slip body (102) is surface coated with an epoxy coating.
  3. 3. The oil production blowout preventer slip according to claim 1, wherein the side of the base (101) is fixedly connected with an input well pipe (104), and the side of the base (101) is fixedly connected with a delivery well pipe (105).
  4. 4. The oil exploitation blowout preventer slip according to claim 1, wherein the flange (201) is internally provided with perforations (204), and the flange (201) and the metal sealing ring (202) are provided with two.
  5. 5. The oil exploitation blowout preventer slip according to claim 1, wherein the flange (201) is internally provided with a threaded rod (205), the side of the threaded rod (205) is provided with a spring pad (206), and the side of the spring pad (206) is in threaded connection with a nut (207).
  6. 6. The oil production blowout preventer slip according to claim 5, wherein the threaded rod (205), spring washer (206) and nut (207) are provided with four.
  7. 7. The oil production blowout preventer slip according to claim 1, wherein the blowout preventer assembly (3) comprises a blowout preventer body (301), the top of the blowout preventer body (301) being fixedly connected with a bonnet (302).
  8. 8. The oil production blowout preventer slip according to claim 7, wherein the side of the blowout preventer body (301) is fixedly connected with a connection well pipe (303), and the side of the blowout preventer body (301) is fixedly connected with an output well pipe (304).

Description

Blowout preventer slip for petroleum exploitation Technical Field The utility model relates to the technical field of oil exploitation equipment, in particular to an oil exploitation blowout preventer slip. Background In the petroleum exploitation process, blowout is a serious safety accident, which not only can cause huge economic loss, but also can cause serious threat to the environment and personnel safety. The blowout preventer is a key device for preventing blowout in petroleum exploitation, and the slips are an important component of the blowout preventer, and the slips are mechanical devices installed inside the blowout preventer and are mainly used for firmly fixing a well pipe in the petroleum exploitation process to prevent the well pipe from moving or being pushed out by pressure in the well under severe environments such as high pressure, high temperature and the like, so that the blowout preventer can be ensured to effectively seal a wellhead and prevent blowout accidents. The existing slips are easy to deform under the action of long-term high pressure. Such deformation may result in the sealing surfaces between the slips and the tubular no longer being in close proximity, thereby creating a small gap. These gaps can gradually enlarge under the action of the high pressure gas, eventually leading to seal failure. Once the seal fails, high pressure fluid within the well may be ejected from the gap, causing a blowout accident. The blowout not only can cause the waste of petroleum resources, but also can cause secondary disasters such as fire explosion and the like, and can cause serious threat to personnel life safety and surrounding environment, and the conventional blowout preventer slips also have a plurality of inconveniences in the installation and disassembly processes. The traditional slips are complex in structure, multiple steps and multiple tools are needed during installation, and the operation is complex and time-consuming. In the process of disassembly, the problems of tight fit between the slips and the well pipe, corrosion adhesion possibly existing and the like are also very difficult to disassemble, so that the problems are improved by the slips of the blowout preventer for petroleum exploitation. Disclosure of utility model In order to solve the problem that the existing slips are easy to deform under the action of long-term high pressure. Such deformation may result in the sealing surfaces between the slips and the tubular no longer being in close proximity, thereby creating a small gap. These gaps can gradually enlarge under the action of the high pressure gas, eventually leading to seal failure. Once the seal fails, high pressure fluid within the well may be ejected from the gap, causing a blowout accident. The blowout not only can cause the waste of petroleum resources, but also can cause secondary disasters such as fire explosion and the like, and can cause serious threat to personnel life safety and surrounding environment, and the conventional blowout preventer slips also have a plurality of inconveniences in the installation and disassembly processes. The traditional slips are complex in structure, multiple steps and multiple tools are needed during installation, and the operation is complex and time-consuming. During disassembly, due to the tight fit between the slips and the well pipe and the possible corrosion adhesion and other problems, the disassembly difficulty is also high, and the utility model aims to provide the blowout preventer slips for petroleum exploitation, so as to solve the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: the oil exploitation blowout preventer slip comprises a main body, wherein a connecting assembly is fixedly connected to the side surface of the main body, and a blowout preventer assembly is fixedly connected to the side surface of the connecting assembly; The main body comprises a base, the top of the base is fixedly connected with a slip body, and the inside of the slip body is fixedly connected with a supporting frame; The connecting assembly comprises a flange plate, a metal sealing ring is fixedly connected to the side face of the flange plate, and a sealing ring is arranged on the side face of the metal sealing ring. As a preferable scheme of the 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. In a preferred embodiment of the present utility model, the side surface of the base is fixedly connected with an input well pipe, and the side surface of the base is fixedly connected with a delivery well pipe. As a preferable scheme of the utility model, the inside of the flange plate is provided with perforations, and the flange plate and the metal sealing ring are provided with two. As a preferable scheme of the utility model, a threaded rod is ar