Ultrasound wax prevention and viscosity reduction equipment for oil-well wellhead

Abstract

The invention relates to the field of petroleum exploitation equipment, in particular to ultrasound wax prevention and viscosity reduction equipment for an oil-well wellhead. The equipment includes anoil inlet cylinder, a stirring and wax prevention cylinder, a stirrer, multiple vibrators, an ultrasound viscosity reduction cylinder, ultrasonic transducers, a front bracket, a rear bracket and a base plate. The oil inlet cylinder is fixedly connected with the front side of the top of the base plate through the front bracket, the rear end of the oil inlet cylinder is sealingly connected and communicated with the stirring and wax prevention cylinder, the rear end of the stirring and wax prevention cylinder is sealingly connected and communicated with the ultrasound viscosity reduction cylinder, the stirrer is rotatably and cooperatedly connected with the inner side of the stirring and wax prevention cylinder, the inner side face of the stirring and wax prevention cylinder is uniformly andfixedly connected with several vibrators, and the inner side of the ultrasound viscosity reduction cylinder is fixedly connected with the several ultrasonic transducers. The equipment can be used forjet-stream whirl, stirring and viscosity reduction, vibration crushing and ultrasonic wax prevention processes of crude oil, and can effectively prevent wax deposition in the extraction or transportation processes of the crude oil, the viscosity of the crude oil is reduced and the transportation efficiency is easily improved.

Description

Technical field [0001] The invention relates to the field of oil exploitation equipment, in particular to an oil well wellhead ultrasonic wax prevention and viscosity reduction equipment. Background technique [0002] In the production of crude oil, when the crude oil flows from the wellhead to the ground, as the temperature in the wellbore decreases, the viscosity of the crude oil increases. When the temperature drops to the waxing point of the crude oil, wax deposition will form on the inner wall of the attached wellbore. , Which increases the flow resistance of crude oil, reduces the extraction efficiency, increases the load of the pumping unit and the hot wash cycle of the oil well. However, the exploitation of heavy oil and high pour-point oil requires steam injection, electric heating, chemical addition and thin oil mixing, which not only wastes energy, increases the difficulty of the measures and processes, but also causes serious corrosion to downhole equipment , Which g...

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Problems solved by technology

[0002] During the production of crude oil, during the flow of crude oil from the wellhead to the ground, as the temperature in the wellbore decreases, the viscosity of the crude oil increases. When the temperature drops to the waxing point of crude oil, wax deposition will form on the inner wall of the attached wellbore , increase the flow resistance of crude oil, reduce the production efficiency, increase the load of the pumping unit and the hot washing cycle of the oil well

However, for the exploitation of heavy oil and high-condensation oil, supporting processes such as steam injection, electric heating, chemical agent addition and thin oil mixing are required, which not only wastes energy, but also increases the difficulty of measures and processes, and causes serious corrosion to downhole equipment. , which greatly increases the cost of production operations

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