Automatic cleaning device for blowout preventer

Abstract

The invention relates to an automatic cleaning device for a blowout preventer. The automatic cleaning device comprises a centering device, an automatic rotating table, a mine car body, mine car hubs, a cross beam main frame, an inner chamber telescopic oil cylinder, an inner chamber cleaning spray nozzle, top cleaning spray nozzles, top transversely-moving oil cylinders, cleaning spray nozzles, up-and-down moving guide rails, a primary sedimentation tank, a water pump and a purifying tank. The centering device is welded in the center of the automatic rotating table; the automatic rotating table is mounted on the mine car body and freely rotates on the mine car body; and the mine car hubs are mounted beneath the mine car body to drive a mine car to move forwards and backwards on a track. The blowout preventer is hung on the mine car body; flanges at the bottom of the blowout preventer are centered by the centering device, the blowout preventer is driven to rotate by the rotating table, and the telescopic oil cylinder is opened so as to clean the inner chamber of the blowout preventer. The automatic cleaning device can perform quick cleaning, inner chamber cleaning and all-directional cleaning, realizes automatic monitoring of the cleaning process, and improves the cleaning efficiency and cleaning quality of the blowout preventer.

Description

technical field [0001] The invention relates to a special automatic cleaning device, in particular to a high-efficiency blowout preventer automatic cleaning device suitable for petroleum engineering. Background technique [0002] At present, the blowout preventer is the key equipment to effectively control wellhead pressure and prevent blowout accidents in the process of drilling, workover, and oil testing in the petroleum industry. It can weigh up to 20 tons, has a large volume, complex structure, and irregular shape. During the field use of the BOP, due to the harsh drilling conditions and complicated process, when the BOP is returned to the factory for maintenance after use, the surface and inner cavity are often adhered to high-viscosity crude oil and mud. If it is not cleaned, it will not be able to Carry out follow-up maintenance and inspection work. In order to ensure the normal maintenance and pressure test of the blowout preventer, the crude oil and mud attached to...

AI Technical Summary

Problems solved by technology

Because crude oil and mud are very viscous and adhere for a long time, they adhere very firmly to the surface and cavity of the blowout preventer, making manual cleaning extremely difficult

Using high-pressure water gun for washing, the washing area is small, the washing time is long, and the cleaning efficiency is very low, and the key inner cavity parts cannot be cleaned, and there are certain unsafe factors, which seriously affect the maintenance and pressure test of the blowout preventer.

Especially during manual cleaning in winter, the attachments on the surface of the blowout preventer have frozen to form a frozen layer, which must be heated and melted before cleaning, which is time-consuming, laborious and energy-consuming

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