Online cleaning device for vertical well oil pumping pipe

Abstract

The invention relates to an online cleaning device for a vertical well oil pumping pipe, and belongs to the technical field of vertical well oil pipe cleaning equipment. The cleaning device is composed of an upper end cover, a center shaft, a balancing weight, a centralizing mechanism, a cleaning mechanism, a transmission mechanism and a lower end cover; the upper end cover is installed at one endof the center shaft in a threaded mode, the balancing weight is installed at the position, below the upper end cover, of the center shaft through a shaft shoulder, the centralizing mechanism is arranged at the position, below the balancing weight, of the center shaft through a limiting block A, the cleaning mechanism is arranged at the position, below the centralizing mechanism, of the center shaft through a limiting block B, the transmission mechanism is arranged at the position, below the cleaning mechanism, of the center shaft; the lower end cover is installed at the other end of the center shaft in a threaded mode, and the transmission mechanism is connected with the limiting block B and the lower end cover in a contacting manner correspondingly. According to the online cleaning device for the vertical well oil pumping pipe, the online cleaning device which is simple in structure and convenient to use, can achieve online cleaning operation on the inner wall of the oil pipe, effectively improve the cleaning work efficiency and reduce the cleaning cost is provided.

Description

technical field [0001] The invention relates to an online cleaning device for a vertical well oil pipe, and belongs to the technical field of vertical well oil pipe cleaning equipment. Background technique [0002] In the vertical oil well drilling project, when the oil extraction pipe is used for oil pumping operation, the inner wall of the oil extraction pipe will be scaled, and the fouled oil extraction pipe is prone to poor oil circulation, which reduces the oil yield of the oil extraction pipe. In order to improve the oil yield of the oil extraction pipe, the inner wall of the oil pipe needs to be cleaned regularly. [0003] At present, the descaling process of oil extraction pipes in oil field engineering is: take out the oil extraction pipes that need to be descaled from the oil well, collect them uniformly, and then transport them from the oil pumping site to the cleaning plant, and use the high-pressure water jet cleaning equipment in the cleaning plant to clean the...

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Problems solved by technology

[0003] At present, the descaling process of oil extraction pipes in oil field engineering is: take out the oil extraction pipes that need to be descaled from the oil well, collect them uniformly, and then transport them from the oil pumping site to the cleaning plant, and use the high-pressure water jet cleaning equipment in the cleaning plant to clean them. Cleaning operation, the cleaning principle is: use high-pressure water jet cleaning equipment to spray high-pressure water to impact the scale on the inner wall of the oil suction pipe, and the strong impact force makes the scale separate from the inner wall of the oil suction pipe and fall off, so as to achieve cleaning and pumping The purpose of the oil pipe; the whole cleaning process needs to be carried out offline for the oil pipe, and the cleaning work must be completed in a special cleaning factory. When cleaning, the powerful impact force of the high-pressure water jet is easy to directly damage the inner wall of the oil suction pipe, so it is necessary to improve it

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