Online monitoring system for corrosion state of oil and gas pipelines and method thereof

Abstract

The invention provides an online monitoring system for the corrosion state of oil and gas pipelines and a method thereof, which can monitor sensitive corrosion points, such as an elbow, liquid accumulating parts at upper and lower slopes, and the like and insensitive corrosion points and realize the remote transmission of corrosion monitoring data in a wired or wireless manner, treat the data at a monitoring center, establish the corrosion state parameter of each point of the oil and gas pipelines via a modern digital signal treating method, judge whether the corrosion state is normal or not,and carry out the corresponding treatment and the control of the pipelines to timely monitor the corrosion state of the oil and gas pipelines so as to timely discover hidden troubles and prevent safety accidents. A three-dimensional corrosion state graph of the pipeline can be visually displayed at the monitoring center so that abnormal corrosion parts can be found out. The scheme of the system has the advantages of low cost and high benefit, and the key is that the system can realize real-time monitoring based on the prior art; and more important, the system can be applied to monitoring the corrosion state of newly-built long oil and gas pipelines such as pipelines for transporting the natural gas from the West to the East so that the system has a very wide market prospect. The oil and gas pipelines can be laid on the ground or buried under the ground.

Description

technical field [0001] The invention belongs to the technical field of oil and gas resource development engineering, in particular to the design and monitoring method of an online monitoring system for the corrosion state of oil and gas pipelines in oil and gas storage and transportation projects; the system and method can be applied to the corrosion state monitoring of all pipelines on the ground and underground, and can also The system and method are applicable to the monitoring of other state parameters of pipelines; at the same time, the system and method can also be applied to non-pipeline, other, and similar system monitoring. Background technique [0002] The continuous improvement of my country's oil and gas pipeline monitoring automation level has created conditions for the development and application of pipeline leakage monitoring technology. However, this technology is still immature in China. To play the role of the automatic monitoring and control system, it is p...

AI Technical Summary

Problems solved by technology

[0010] ① There is a lack of correct understanding of corrosion monitoring, and managers have not placed corrosion monitoring at a high enough position;

[0011] ② The technology is difficult. Compared with antiseptics, the production of antiseptics is not easy to master. In addition, antiseptics are consumables, which are easy to make profits for manufacturers and sellers. Therefore, since the 1980s, the pharmaceutical market has been extremely hot. However, corrosion monitoring companies have not increased, resulting in a lack of complete technology and experienced project leaders;

[0012] ③ Lack of confidence in the long-term benefits brought by corrosion monitoring;

Existing problems: Most companies lack the establishment of corrosion monitoring and testing databases; the instability of professional talents leads to discontinuous work or the lack of sustainable development of the overall level

However, the on-line corrosion monitoring of long-distance pipelines like the West-East Gas Pipeline has not been reported yet.

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