Intelligent energy-saving anti-eccentric wear sealing device

Abstract

The invention relates to an intelligent energy-saving anti-partial wear sealing device, which is connected to a wellhead joint and includes a blowout prevention device, a sealing device, a feeding device, a sealing device, a pressurizing device, an anti-partial wear device and an automatic control system. Among them, the automatic control system includes a pressure sensor, a limit sensor, a PLC controller and a circuit device, which are used to control automatic operations including a feeding device, a pressurizing device and a sealing device. The sealing device of the present invention can effectively prevent partial wear of the polished rod of the pumping unit, prolong the service life of the polished rod of the pumping unit, reduce the production cost of crude oil, and at the same time significantly reduce the labor intensity of oil production workers, and is especially suitable for installation and use in dangerous oil fields in remote wilderness, reducing Oil production workers inspect and maintain oil wells to protect the personal safety of oil production workers.

Description

technical field [0001] The application relates to the field of oil fields, in particular to an intelligent energy-saving anti-eccentric wear sealing device. Background technique [0002] At present, most oil fields use rod pumping equipment. The sucker rod drives the pump to reciprocate up and down in the oil pipe to lift the oil at the bottom of the well to the ground, and then transport the oil to the target area through oil pipelines and other transportation equipment. or the upper level system. In the current oil recovery technology, wellhead sealing has always been the focus of attention, and it is also one of the difficult problems in various oil fields. In order to solve this problem, it is generally necessary to cut several rubber sealing rings, stagger the cuts, put them into the packing box and press them tightly to achieve the sealing of the polished rod. However, the above-mentioned sealing method has many disadvantages. For example, after a period of use, the ...

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Problems solved by technology

[0005] However, the above-mentioned prior art does not fundamentally solve the problem of eccentric wear and replacement of the sucker rod, and cannot effectively prolong the service life of the sucker rod. Moreover, the pumping unit is automatically stopped and the motor is automatically turned on through intelligent commands to achieve pressurized sealing. Achieving real intelligence to prevent eccentric wear cannot effectively solve the problems of reducing manual inspection, maintenance and protecting personnel safety faced by dangerous oil fields in remote wilderness areas

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