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Wellhead adjustable energy storage and sealing blowout-preventing device

A blowout prevention device and energy storage technology, which is applied in sealing/isolation, wellbore/well components, earthwork drilling and mining, etc., can solve the problems of workers' personal safety hazards, surrounding environmental pollution, waste of energy, etc., and avoid environmental pollution and energy waste, reduce oil recovery costs, and prevent blowouts

Inactive Publication Date: 2018-03-13
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that wellhead seal failure or broken rod accidents easily cause blowout phenomenon, resulting in a large amount of crude oil leakage, which not only pollutes the surrounding environment, but also wastes a lot of energy, and at the same time causes harm to the personal safety of workers. Propose a Wellhead Adjustable Energy Storage Seal Blowout Preventer

Method used

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  • Wellhead adjustable energy storage and sealing blowout-preventing device
  • Wellhead adjustable energy storage and sealing blowout-preventing device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 Describe this embodiment, a wellhead adjustable energy storage sealing blowout prevention device described in this embodiment includes a polished rod 1, an adjustment nut assembly, a clamp assembly, a housing 8, a flat gasket 9, a spring 10, a pressure cap 17, a plugging The steel ball channel 18, the sealing plug 19, the sealing steel ball 20 and several spherical elastic particles 7, the adjusting nut assembly, the housing 8, and the clamp assembly are sequentially set on the polished rod 1 from top to bottom, flat The pad 9 and the spring 10 are set on the polished rod 1, and the flat pad 9 and the spring 10 are located in the casing 8, and several spherical elastic particles 7 are filled in the casing 8, and one end of the steel ball passage 18 is blocked from the casing 8. The outer wall of the closed steel ball channel 18 is connected with the inner cavity of the housing 8, the closed steel ball 20 and the sealing...

specific Embodiment approach 2

[0015] Specific implementation mode two: combination figure 1 Describe this embodiment, the adjustment nut assembly of a wellhead adjustable energy storage sealing blowout preventer described in this embodiment includes an adjustment nut 2, a connecting body 4 and a pressure plate 5, and the adjusting nut 2 and the connecting body 4 are arranged in order from top to bottom Set on the polished rod 1, and the lower end of the adjustment nut 2 is set on the upper end of the connecting body 4, the lower end of the connecting body 4 is set on the outer wall of the upper end of the housing 8, the pressure plate 5 is set on the polished rod 1, and the pressure plate 5 is located in the shell Inside the upper end of the body 8. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0016] Specific implementation mode three: combination figure 1 Describe this embodiment. The adjustment nut assembly of the wellhead adjustable energy storage sealing blowout preventer described in this embodiment also includes two elastic sealing taper sleeves 3, and the two elastic sealing taper sleeves 3 are sequentially set on the polished rod from top to bottom. 1, and one elastic sealing taper sleeve 3 is located between the inner wall of the adjustment nut 2 and the outer wall of the polished rod 1, and the other elastic sealing taper sleeve 3 is located between the inner wall of the connecting body 4 and the outer wall of the polished rod 1. There is a friction pair between the elastic sealing taper sleeve 3 and the polished rod 1, and the two elastic sealing taper sleeves 3 can strengthen the sealing effect between the adjustment nut 2, the connecting body 4 and the polished rod 1 to avoid oil leakage; the elastic sealing taper sleeve 3 is made of PEEK The two elasti...

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Abstract

The invention relates to a sealing blowout-preventing device, in particular to a wellhead adjustable energy storage and sealing blowout-preventing device, and belongs to the field of oil field machinery. According to the wellhead adjustable energy storage and sealing blowout-preventing device, the problems that failure of wellhead sealing or a rod breaking accident easily causes the occurrence ofa well blowout phenomenon, so that outleakage of a large amount of crude oil is caused, not only is the surrounding environment polluted, but also a lot of energy is wasted, and meanwhile, the harm topersonal safety of workers is caused are solved. An adjusting nut assembly, a shell and a clamping assembly of the wellhead adjustable energy storage and sealing blowout-preventing device are arranged on a polish rod in a sleeving mode in sequence from top to bottom, a flat pad and a spring are arranged on the polish rod in a sleeving mode, and the flat pad and the spring are located in the shell; the shell is filed with a plurality of spherical elastic particles, one end of a plugging steel ball channel is connected with the outer wall of shell, and the plugging steel ball channel communicates with an inner cavity of the shell; and plugging steel balls and sealing plug heads are arranged in the plugging steel ball channel in sequence from inside to outside, and a pressing cap is arrangedat the other end of the plugging steel ball channel in a sleeving mode.

Description

technical field [0001] The invention relates to a sealing blowout prevention device, in particular to a wellhead adjustable energy storage sealing blowout prevention device, which belongs to the field of oilfield machinery. Background technique [0002] In the field of oil production work in the oil field, the oil production wellhead often causes a blowout phenomenon due to the failure of the wellhead seal or the broken rod accident, resulting in a large amount of crude oil leakage, which not only pollutes the surrounding environment, but also wastes a lot of energy. Hazard to personal safety. Contents of the invention [0003] The present invention solves the problem that wellhead seal failure or broken rod accidents easily cause blowout phenomenon, resulting in a large amount of crude oil leakage, which not only pollutes the surrounding environment, but also wastes a lot of energy, and at the same time causes harm to the personal safety of workers. A wellhead adjustable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06
CPCE21B33/06
Inventor 王珏许瑞
Owner NORTHEAST GASOLINEEUM UNIV