External anti-corrosion method for oil and water well pipelines

Abstract

The invention relates to an outer corrosion prevention method of an oil-water well pipeline. The outer corrosion prevention method sequentially includes the following steps of firstly, fixing two X-direction guide rails on the ground; secondly, installing a special corrosion prevention device on the X-direction guide rails; thirdly, putting the two ends of the oil-water well pipeline on a pipelinedriving support, wherein the axis of the pipeline is parallel to the X-direction guide rails; fourthly, making a rust removal grinding head on the special corrosion prevention device descend and press the top of the pipeline, then making the special corrosion prevention device horizontally move to the other end, meanwhile making the pipeline continuously rotate, and making the dust removal grinding head rotate at a high speed for dust removal until the dust removal grinding head arrives at the other end of the oil-water well pipeline; fifthly, stopping all of the dust removal grinding head, the special corrosion prevention device and the pipeline driving support, and then lifting up the dust removal grinding head; sixthly, leading out a paint dipping fiberglass fabric from the special corrosion prevention device, and winding the paint dipping fiberglass fabric on the oil-water well pipeline; and seventhly, making the special corrosion prevention device return to horizontally move to the other end, and meanwhile making the oil-water well pipeline continuously rotate so that the paint dipping fiberglass fabric can be spirally wound on the pipeline. By means of the outer corrosion prevention method, the outer corrosion prevention work of the pipeline can be safely and efficiently completed at low intensity.

Description

technical field [0001] The invention relates to an external anti-corrosion method for oil-water well pipelines, which is mainly applied to common automatic anti-corrosion work in external anti-corrosion operations of pipelines, including automatic rust removal, cloth wrapping, painting, etc., and belongs to the technical field of anti-corrosion technology for oil-water well pipelines. Background technique [0002] In the anti-corrosion work of oilfield pipelines, it is necessary to frequently wrap cloth and paint. At present, two people are used to lift the pipe, two people hold the steel pipe to rotate, two people manually wrap the cloth, and two people manually paint the wrapped cloth. Reciprocating operations until the construction of a steel pipe "four oils and four cloths" is completed. Since there is no special tool, eight operators are required to cooperate with the operation, and the labor intensity is high. It needs to transfer the pipe, wrap the cloth, and manually...

AI Technical Summary

Problems solved by technology

Since there are no special tools, eight operators are required to cooperate with the operation, which is labor-intensive. It requires not only tube transfer, cloth wrapping, but also manual painting, which requires a large amount of labor and low efficiency.

Manual tube transfer has no stable speed and relies purely on the experience of the operator. Manual cloth wrapping and manual painting are prone to instability, high risk, and easy to cause serious mechanical damage. There are greater safety and quality hidden dangers

[0003] In addition, rust removal is very time-consuming and laborious, and the dust caused is large, which is not conducive to the labor protection of workers. In actual work, rust removal is easy to be incomplete, or even the rust removal step is omitted, resulting in a decline in anti-corrosion quality and affecting the service life of the pipeline.

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