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Oil transferring, gas water conduit inner wall anti-corrosive process process harness maching with the same

A technology for water pipelines and oil transportation, applied in pipeline anti-corrosion/anti-rust protection, pipeline protection, damage protection, etc. The effect of reducing operating costs and prolonging service life

Inactive Publication Date: 2008-04-09
姜永民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also defects that are not suitable for construction due to strong wind and dust. The more prominent disadvantage is that the protective layer near the weld is damaged and cannot be repaired. Due to the existence of these parts, sulfur, chloride ions and During its mining, acidizing, fracturing, chemical anti-wax, chemical dehydration, chemical plugging removal and other chemical agents are adopted in the underground. Under the action of the corrosive medium brought by it, corrosion will first occur and gradually become The weak point of the pipeline greatly reduces the anti-corrosion effect of the inner wall. Based on the above reasons, the previous anti-corrosion process of the inner wall of the pipeline needs to be further improved

Method used

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  • Oil transferring, gas water conduit inner wall anti-corrosive process process harness maching with the same
  • Oil transferring, gas water conduit inner wall anti-corrosive process process harness maching with the same
  • Oil transferring, gas water conduit inner wall anti-corrosive process process harness maching with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Taking the newly laid oil pipeline as an example, the first end of the pipeline to the terminal is regarded as a working area. The terminal is the entrance to the first pressurization station, usually a pressurization station is set every 20-25KM, and After the pipeline is welded and combined to complete the external anti-corrosion and heat preservation process, the construction team uses a pig to clean up the qualified pipeline without debris and the pipeline is smooth. Processing step of the present invention is as follows:

[0031] a, the head end of the newly laid pipeline 13 is connected with the outlet of the connection equipment 1 in the process equipment, as shown in Figure 1, the terminal of the pipeline is connected with the recovery box 12, and is connected with the high-pressure air source by the upper and lower branch line interface 10;

[0032] b. Clean up the corrosion and attachments on the inner wall of the pipeline 13, put the wire brush 6 from the upp...

Embodiment 2

[0036] The process a is the same as that of Example 1. If it is found that there is overcurrent or burrs at the welding joint on the inner wall of the pipeline 13, the steel file wheel 17 can be added according to the operation procedure of the b process of Example 1, which is equivalent to replacing the steel wire brush 6 with a steel file. The wheel 17 removes the overcurrent burr at the welding joint, throws a round of steel files every 5 minutes, repeats the first procedure, and after three rounds, after passing the inspection, the process of cleaning the inner wall of the pipeline 13 for corrosion and attachments b With embodiment 1;

[0037] C, except that the 1900 polyurethane anticorrosion iron red primer that selects Yangzhou Jinling Special Coatings Co., Ltd. to produce is the bottom layer and then brushes the company's 1901 polyurethane anticorrosion topcoat as the composite anticorrosion layer, its operating process is the same as that of embodiment 1 The process c...

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Abstract

The present invention relates to a pipeline anti-corrosion technique and technique equipment for the delivery of oil, gas and water, in particular to pipeline inner wall anti-corrosion technique and the correspondingly matched technique equipment for the delivery of oil, gas and water, and is the preferred inner wall anti-corrosion technique of the pipelines for the delivery of oil, gas and water newly laid by each oil field. The technique is: a, the front end of the newly laid pipeline is connected with an outlet of a connecting piece of the technique equipment, a rear end of the pipeline is connected with a recycling box and connected with a high-pressure air source through an upper joint and a lower joint; b, the rust, corrosion and attachments inside the pipelines are removed; c, the inner wall is coated with anti-corrosion paints; d, uniformity and thickness of coating are qualified by the testing of a spark tester after ventilation and drying. The present invention has favorable performances of anti-corrosion, wear-resistance and weather resistance, remarkably improves the integrated anti-corrosion performance of the pipelines, prolongs the service life of the pipelines, and reduces the operation cost of the pipelines.

Description

technical field [0001] The present invention relates to an oil, gas, water pipeline anti-corrosion process and process equipment, in particular to an oil, gas, water pipeline inner wall anti-corrosion process and matching process equipment, which is a variety of oil transport equipment newly laid in various oil fields. The preferred inner wall anti-corrosion process for gas, water and gas pipelines. It can also be used for anti-corrosion treatment of the inner wall of other metal pipelines. Background technique [0002] According to statistics, the annual economic loss caused by corrosion in various countries in the world is about 3-5% of the country's GDP in that year, which is far greater than the sum of losses caused by natural disasters and various accidents. Manpower and funds are used to study the corrosion mechanism and protection methods of various materials in order to slow down the corrosion rate and prolong the service life of the overall product. For this purpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L58/02
CPCY02A20/20
Inventor 姜永民
Owner 姜永民