Anti-falling device special for electric pump wellhead

Abstract

The invention relates to an anti-falling device special for an electric pump wellhead. The anti-falling device special for the electric pump wellhead comprises a lift sub seat face made of an elastic material; an alignment hole is formed in the center of the lift sub seat face; a floating blade is arranged on the inner ring of the lift sub seat face; and a sleeve opening is formed in the lift sub seat face. The anti-falling device has the characteristics of being simple in structure, convenient to machine, low in manufacturing cost and resistant to corrosion, oil, gas and water, and the phenomenon that used tools or parts fall in a well at the time of wellhead operation, so that resistance occurs in the process of wiper trip operation or unit taking out is avoided effectively.

Description

technical field [0001] The invention relates to a special anti-falling device for the well head of an electric pump. Background technique [0002] When the electric pump well is lifting and lowering the pump, the on-site operators often drop their hands when using tools or installing accessories. The tools or accessories are likely to fall into the annular space formed between the unit and the wellhead, especially If objects such as adjustable wrenches, stainless steel screws, wire cutters, and disc axle pliers fall into the well, it is very likely to cause obstructions during the well drilling operation or the unit’s lifting process, resulting in the unit being unable to go down or lift up. If the hoist is used to forcibly lift it, it is very likely that the hard objects falling into the well will damage the unit and the casing wall. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a special anti-dropping ...

AI Technical Summary

Problems solved by technology

[0002] When the electric pump well is lifting and lowering the pump, the on-site operators often drop their hands when using tools or installing accessories. The tools or accessories are likely to fall into the annular space formed between the unit and the wellhead, especially If objects such as adjustable wrenches, stainless steel screws, wire cutters, and disc axle pliers fall into the well, it is very likely to cause obstructions during the well drilling operation or the unit’s lifting process, resulting in the unit being unable to go down or lift up. If the hoist is used to forcibly lift, it is very likely that the hard objects falling into the well will damage the unit and the casing wall.

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