Delivery pipe cleaning device

Abstract

The invention relates to a delivery pipe cleaning device, which comprises a ball storage drum. The upper end of the ball storage drum is communicated with an oil inlet pipeline; the upper end of the ball storage drum is provided with a quick assembly joint for connecting a hydraulic tool; the hydraulic tool is used for filling a pipe cleaning ball into the ball storage drum; the lower end of the ball storage drum is communicated with an oil outlet pipeline; and the lower end of the ball storage drum is provided with delivery equipment for delivering the pipe cleaning ball into the oil outlet pipeline from the ball storage drum. The delivery equipment comprises a motor and a delivery executor which are connected, wherein the motor drives the delivery executor to run; and the delivery executor is communicated with the oil outlet pipeline and delivers the pipe cleaning ball into the oil outlet pipeline from the ball storage drum. The device avoids the problems of wax precipitation and blockage caused by cooling crude oil; and the ball storage pipeline does not need to be heated for freeze protection, so the device is simple to maintain. Moreover, the device can deliver the ball under the conditions of no emptying, oil release and pressure release, and ensure a healthy, safe and environment-friendly delivery operating process.

Description

technical field [0001] The invention relates to the field of oil transportation, in particular to a ball throwing pigging device for oil transportation pipelines. Background technique [0002] In the process of oil transportation, after the waxy crude oil is lifted to the ground, affected by changes in temperature, pressure and other conditions, the oil-gathering pipeline will precipitate wax and adhere to the pipe wall, resulting in a rapid decline in the flow capacity of the oil-gathering pipeline, resulting in The back pressure of the oil well rises, and in severe cases, the pipeline is blocked, affecting the normal production of the oil well. [0003] At present, most oilfields mainly adopt the method of manually throwing balls or mechanical balls to clean the oil collection pipeline, and cooperate with the method of dosing and regular hot washing to achieve the effect of wax removal, so as to reduce the back pressure of oil delivery, reduce friction resistance, and redu...

AI Technical Summary

Problems solved by technology

[0005] Since the crude oil medium is always retained in the ball loading cylinder 13, it is in a non-flowing state. In winter, the temperature is low. If it is not heated and kept warm, the viscosity of the stagnant crude oil in the ball loading cylinder 13 will become larger and solidify, causing the pigging ball 16 to be unable to move down by its own weight. 12 cores, no pitching possible

[0006] The above-mentioned pitching process needs to release the oil and pressure from the ball-loading cylinder 13. There are certain safety hazards in this process. Improper operation will easily cause crude oil to leak out and pollute the environment. Moreover, the motor 11 supporting the ball-throwing device is large and heavy, which is inconvenient to install and expensive. High, unable to promote the application on a large scale

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