Variable-diameter wellhead oil wax scraping device for sucker rod

Abstract

The invention relates to the technical field of oil wax scraping devices for sucker rods, and provides a variable-diameter wellhead oil wax scraping device for a sucker rod. The variable-diameter wellhead oil wax scraping device comprise a seat cylinder and oil wax scraping assemblies; at least one set of oil wax scraping assembly is fixedly mounted on the seat cylinder from top to bottom; and each set of oil wax scraping assembly comprises a radial sleeve, a hollow propelling shaft, a push-pull rod, an oil scraping plate, an oil scraping plate supporting connection seat, a compression spring,a guiding rocker arm and a lower transparent cover. According to the variable-diameter wellhead oil wax scraping device for the sucker rod, the structure is reasonable and compact, and using is convenient; oil wax can be completely scraped through the oil scraping plate while the sucker rod is lifted upwards, and oil dirt is controlled in a wellbore, environment pollution caused by the oil dirt falling from the outer wall of the sucker rod is avoided, and the operation environment around a wellhead is improved; the problem of oil dirt scattering pollution during traditional ground clearing issolved; the labor strength of workers for clearing the polluted ground is further reduced, the operation time is not occupied, operating by a special person is also not required, and the operation work time is reduced; and the structure is simple, and operation is easy and convenient.

Description

technical field [0001] The invention relates to the technical field of an oil-scraping wax device for a sucker rod, and relates to a variable-diameter oil-scraping wax device for a sucker rod wellhead. Background technique [0002] At present, the sucker rod lifting operation is necessary in the downhole operation, and it is also one of the measures with the most construction times; due to the adhesive nature of crude oil, during the sucker rod lifting process, the raised sucker rods are often attached with a large amount of oil wax. After the sucker rod is lifted from the wellhead, the crude oil attached to the surface of the sucker rod will fall to the wellhead, polluting the working environment of the wellhead construction personnel; if it is in a windy day, the crude oil will be blown to the well site outside the wellhead, causing Environmental pollution at the well site; in addition, the proposed sucker rods are placed on the pipe bridge, and special personnel are requi...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a variable-diameter sucker rod wellhead scraping wax device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the proposed sucker rods are often attached with a large number of When cleaning the sucker rod with ground cleaning method, there are problems such as difficult cleaning, on-site construction environment, serious pollution, and high labor intensity

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