Oil pipe cleaning device on workover operation site

Abstract

The utility model relates to an oil pipe cleaning device at a workover operation site. The main purpose is to provide a tool for on-site removal of the ternary compound scale-flooding on the inner wall of the pulled tubing during the workover operation. It is characterized in that: it includes a nozzle body, a spacer ring, a bearing, a gasket, a shaft core, a roller, a spring, a high-pressure seal, and a sealing seat; the top of the nozzle body is provided with several threaded mounting holes for organ pipe cavitation nozzles and several Organ tube cavitation nozzle, several rollers are correspondingly embedded in several grooves of the outer ring body of the shaft core, two sets of spacer rings, bearings and gaskets are respectively installed on both ends of the shaft core, the combined rollers and the shaft core are installed In the nozzle shell; the upper spring, the high-pressure seal and the seal seat are installed at the tail end of the shaft core to form the main seal, and the preload of the spring is adjusted to ensure that the seal seat is in close contact with the rear joint; the spacer ring, bearing, gasket and shaft The core constitutes a rotating unit; the front end of the rear joint is connected with the nozzle shell through threads, and the rear end is connected with a flexible pipe to provide high-pressure water supply.

Description

technical field [0001] The invention relates to an oil pipe cleaning tool applied in the field of workover operations. Background technique [0002] In the use of oil pipes in oilfield development, due to the pollution of various environmental factors, pipe wall scaling, embroidery, salt formation, wax formation, heavy oil and other phenomena occur. When the scaling is serious or the cleaning is not timely, the service life of the tubing will often be reduced or even the tubing will be scrapped. Every year in China, 30% or more of the tubing is scrapped due to tubing scaling, and the scaling of the tubing will increase the cost of use. At present, with the sharp rise in international oil prices, the development of high water-cut oilfields is becoming more and more difficult, and the cost of oil production continues to rise. The oilfield needs to further increase the recovery of old scaled tubing from oil wells in order to reduce the overall production cost of the oilfield. ...

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