Environmentally friendly cleaning car for oil well operation

Abstract

An environmentally friendly cleaning car for oil well operation comprises a cold water heating and hot water pressurizing device, a cleaning device and an automatic recovery device, and the cold water heating and hot water pressurizing device comprises a water filling tank, a water filling pump, a heating furnace, a cleaning pump and an electric generator. The cleaning device comprises a sucker rod cleaner, an oil pipe inner wall cleaning assembly and an oil pipe outer wall cleaner, and the automatic recovery device comprises an oil and water automatic collecting box, a recovery pump and an underground oil collecting pipe network; when an oil well is subjected to cleaning operation, a sucker rod is cleaned by the sucker rod cleaner, and before an oil pipe is lifted out of the wellhead, the oil pipe inner wall is cleaned through the oil pipe inner wall cleaning assembly; and in the lifting process of the oil pipe, the oil pipe outer wall is cleaned through the oil pipe outer wall cleaner, and meanwhile, the generated mixture of oil and water is recovered through the automatic recovery device and pressed into the underground oil collecting pipe network. The environmentally friendly cleaning car for oil well operation integrates heating, cleaning and recycling as a whole which is energy-saving and environment-friendly, and automation degree is high.

Description

technical field [0001] The invention relates to the technical field of oil pipe cleaning in the petroleum industry, in particular to an environment-friendly cleaning vehicle for oil well operations. Background technique [0002] In the process of oil production, due to various reasons such as scaling, wax deposition, sand return, and wear of the oil pipe and sucker rod, it is necessary to carry out oil well operations and repair the oil well. In the process of oil well operation, cleaning the dirt on the inner and outer walls of the sucker rod and tubing is an important part of oil well repair. [0003] The cleaning special vehicles currently used are divided into boiler trucks, pump trucks, tank trucks, and sewage recovery trucks, which are difficult to use and inefficient. At present, there are three general cleaning methods. The first is backwashing: use a pump truck to press hot water into the casing and return it from the tubing, which wastes a lot of water and heat en...

AI Technical Summary

Problems solved by technology

[0003] Currently used cleaning vehicles are divided into boiler trucks, pump trucks, tank trucks, and sewage recovery trucks, which are difficult to use and inefficient

At present, there are three general cleaning methods. The first is backwashing: use a pump truck to press hot water into the casing and return it from the tubing, which wastes a lot of water and heat energy. A large amount of water enters the bottom of the oil well and affects crude oil production; The second is to place the oil pipe on the well site, heat it with a boiler truck, and use a steam gun to flush the outer or inner wall of the oil pipe. After the rods and tubing are pulled out from the wellhead, they are transported to the tubing factory for cleaning. This method increases the cost of back-and-forth transportation and the loading and unloading process, which is time-consuming and laborious, and increases the safety risk during transportation.

[0004] To sum up, the traditional special vehicles and cleaning technology have the problems of polluting the environment, high cost and low efficiency

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