A multifunctional oil rod scraping and wax removal device

Abstract

The invention belongs to the technical field of mechanical accessories of oil wells, and discloses a multifunctional oil scraping and wax removing device for a sucker rod. The device structurally comprises a cylindrical casing which is matched with a well mouth of an oil well, can be fixed with the oil well and comprises an upper gland, wherein a wax and oil scraping mechanism assembly of the sucker rod is arranged in the cylindrical casing; a certain sliding clearance is formed between the cylindrical casing and the wax and oil scraping mechanism assembly of the sucker rod in a horizontal direction; corresponding sucker rod holes are formed in the upper gland and the bottom of the cylindrical casing; the sucker rod can penetrate through the corresponding sucker rod holes. According to the multifunctional oil scraping and wax removing device disclosed by the invention, wax oil on the sucker rod can be scraped, and the requirements on environment friendliness, engineering quality and safety production in an underground operation construction site of an oil industry are met; the multifunctional oil scraping and wax removing device has the characteristics of practicality, convenience in operation and simplicity in mounting and maintaining.

Description

technical field [0001] The invention belongs to the technical field of petroleum oil well machinery accessories, and relates to a multi-functional oil rod scraping and wax removal device for cleaning oil stains on the sucker rod body and avoiding gas-liquid ejection in the oil pipe in the well when the rod is lifted. Background technique [0002] At present, there is no professional online oil scraping tool used in oil workover operations for the sucker rod string pulled out of the well. For wells with a lot of oil and wax on the sucker rod, hot washing is often carried out before the rod is lifted, but the sucker rod cannot be completely cleaned, and it is necessary to manually scrape the oil with a steel wire or clean the sucker rod when the rod is pulled out. The discharge is discharged at the well site and washed with a steam boiler. Its efficiency is low, and oil wax falls to the ground and causes environmental pollution. In addition, when lifting the pipe, there is n...

AI Technical Summary

Problems solved by technology

For wells with a lot of oil and wax on the sucker rod, hot washing is often carried out before the rod is lifted, but the sucker rod cannot be completely cleaned, and it is necessary to manually scrape the oil with a steel wire or clean the sucker rod when the rod is pulled out. Take out and discharge in the well site and use a steam boiler to wash

Its efficiency is low, and the oil wax falls to the ground to cause environmental pollution

In addition, when lifting the pipe, there is no suitable blowout prevention tool installed above the wellhead. When there is a sign of blowout, the pipe lifting action has to be stopped, and the previously prepared pipe, rod, plugging nipple is lifted and the plugging rod is installed on site. Annulus

The operation is cumbersome, delays the timing of well control, and cannot fully meet the needs of on-site construction

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