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Cable-free paraffin removal robot

A robot and wax removal technology, applied in cleaning equipment, wellbore/well parts, buildings, etc., can solve the problems of high cost, polluting the environment, manual operation, etc., and achieve high work efficiency

Active Publication Date: 2022-01-25
HANGZHOU QIANJING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first method is to lift the waxed oil pipe from the oil well and transport it to the oil pipe factory, and extend the wax scraper into the oil pipe to scrape the wax. This method requires the shutdown of the oil well to affect production, which is time-consuming, laborious, and costly;
[0004] The second method is to add chemical reagents to the waxed oil wells, chemically react with the wax to decompose, and then discharge them with the well fluid. lead to environmental pollution;
[0005] The third method is to remove wax by pouring hot water and electric heating, which consumes a lot of energy and costs;
[0006] The fourth type is the mechanical wax removal method. A counterweight is tied to the wax scraper, and it is thrown into the oil well from the wellhead. The wax scraper is driven by gravity to remove the wax, and then pulled back to the wellhead by the steel wire rope tied to the tail, and so on. Wax removal, this method requires oil well shutdown and manual operation
[0007] So there is not yet a machine that does not use cables to quickly clean the wax in the tubing

Method used

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  • Cable-free paraffin removal robot
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Embodiment Construction

[0041] Below in conjunction with each accompanying drawing, the present invention is described in detail.

[0042] as attached figure 1 , 2 , 3, 4 and 5, a cable-free wax removal robot includes a power system, a crawling shaft 11, a centralizing rod 6, a wax scraper 5 and a roller 1, and the crawling shaft 11 and the centralizing rod 6 are directly or indirectly connected to the The power system is matched together, and the power system is used to drive the crawling shaft 11 to rotate. The wax scraper 5 is installed on the centralizing rod 6 , and the roller 1 is directly or indirectly rotated and mounted on the side wall of the crawling shaft 11 .

[0043] In this kind of wax removal robot, a kind of robot that can go up and down in oil pipe 20 is formed by combining power system, crawling shaft 11, centering rod 6, wax scraper 5 and roller 1. Among them, the wax scraper 5 can scrape off the wax on the pipe wall, and the work efficiency is high.

[0044] The specific worki...

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PUM

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Abstract

The invention discloses a cable-free paraffin removal robot. The cable-free paraffin removal robot comprises a power system, a crawling shaft, a righting rod, a paraffin scraper and a roller, wherein the crawling shaft and the righting rod are directly or indirectly matched with the power system, the power system is used for driving the crawling shaft to rotate, the paraffin scraper is installed on the righting rod, and the roller is directly or indirectly installed on the side wall of the crawling shaft in a rotating mode. The cable-free paraffin removal robot has the following beneficial effects that the power system, the crawling shaft, the righting rod, the paraffin scraper and the roller are used in a combined mode, the robot capable of ascending and descending in an oil pipe is formed, the paraffin scraper can scrape paraffin on a pipe wall in the ascending and descending process of the robot, and the working efficiency is high.

Description

technical field [0001] The invention relates to the field of oil pipe cleaning, in particular to a cable-free wax removal robot. Background technique [0002] In oil transportation pipelines, due to the gradual decrease in temperature near the wellhead, wax deposition occurs on the inner wall of the oil pipe. If the wax is not removed in time, the flow area in the oil pipe will be reduced or blocked, and the efficiency of oil transportation will be reduced. At present, there are mainly the following wax removal methods: [0003] The first method is to lift the waxed oil pipe from the oil well and transport it to the oil pipe factory, and extend the wax scraper into the oil pipe to scrape the wax. This method requires the shutdown of the oil well to affect production, which is time-consuming, laborious, and costly; [0004] The second method is to add chemical reagents to the waxed oil wells, chemically react with the wax to decompose, and then discharge them with the well f...

Claims

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Application Information

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IPC IPC(8): E21B37/02E21B23/00
CPCE21B37/02E21B23/001E21B17/10Y02A20/204
Inventor 金立川尹学超陈南干王佳佳闫江浩汪奇李华晶叶哲宁康庆泽李德根
Owner HANGZHOU QIANJING TECH CO LTD
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