Acoustic-magnetic-thermal combined paraffin-control and plug-removal method and device for oil pipeline

Abstract

The invention discloses an acoustic-magnetic-thermal combined paraffin-control and plug-removal method and device for an oil pipeline. According to the method and device, the ultrasonic technology, the electromagnetic induction heating technology and the electromagnetic paraffin-control technology are combined and reinforce one another, and a paraffin-control and plug-removal effect superior to simple superposition can be obtained. The device is composed of an ultrasonic generating module, an electromagnetic induction heating module, a power source module, a remote communication module, a protection and control module, a pressure measuring module, a temperature measuring module, a measuring terminal and an electromagnetic paraffin-control module. By the adoption of the device, precipitation of paraffin is prevented so that scale formation can be avoided and generated paraffin can be removed by means of the high-power ultrasonic cavatition effect and the good paraffin control effect of the alternating magnetic field; the temperature of the oil pipeline is increased by means of the electromagnetic induction heating technology, the temperature of crude oil is kept higher than paraffin precipitation point temperature, and the paraffin precipitation is restrained; meanwhile, the blocking degree of the pipeline can be automatically judged by means of sensors at the head end and tail end of the pipeline, and then corresponding working modes are started. The device is high in universality and operates online completely.

Description

technical field [0001] The present invention relates to an acousto-magnetic-thermal compound anti-wax and blockage-removing method and device for oil pipelines, in particular to an efficient and intelligent anti-wax and blockage-removal method that organically combines ultrasonic technology, electromagnetic anti-wax technology and electromagnetic induction heating technology The method and device belong to the field of petroleum industry. technical background [0002] In the process of oil field production and operation, the problem of fouling and blockage of oil pipelines has always plagued the normal production of the oil industry. Scaling will reduce the capacity of pipelines, reduce production, increase energy consumption and heat up equipment and accelerate its aging. When the fouling is serious until the oil pipeline is blocked, the production must be stopped to remove the blockage, which not only consumes a lot of manpower and material resources, increases the cost, ...

AI Technical Summary

Problems solved by technology

The strong acid used in the chemical method will cause pollution, and long-term operation will corrode and damage the pipeline, which is not worth the candle

Some common physical plugging removal methods often require shutdown operations and complicated operations, such as high-pressure water jet technology

The on-line operation method is mainly aimed at preventing wax. When the wax is seriously clogged, it has little effect and cannot solve the problem of tubing clogging.

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