An optimization method for anti-corrosion measures for oil and gas industrial installations

Abstract

The invention discloses an optimization method for anti-corrosion measures for oil and natural gas industrial devices, which includes optimizing the anti-corrosion measures for materials, according to the content of the corrosive medium in the process medium of the device, and the form of corrosion damage caused to equipment and pipelines , the actual corrosion rate threshold, etc. to reasonably determine the materials used for key corrosion parts of equipment and pipelines; to optimize process anti-corrosion measures, to standardize process operations based on real-time monitoring of key corrosion parts of the device, to strengthen sampling and analysis of corrosive media, Effectively control the quality of process medium treatment and effectively use corrosion inhibitors; optimize corrosion monitoring and detection measures, improve the number and location of on-line corrosion rate monitoring points on key corrosion parts of equipment and pipelines, and set the number of off-line fixed-point thickness measurement points Inductive analysis of corrosion failure cases, establishment of corrosion failure database and inductive analysis, to ensure the smooth operation of oil and gas industrial equipment.

Description

technical field [0001] The invention relates to the field of oil and natural gas industry, in particular to an optimization method for anti-corrosion measures of oil and natural gas industrial equipment. Background technique [0002] With the increasing shortage of energy, the mining and processing of high-sulfur or high-acid low-quality crude oil and the development and utilization of sour natural gas have become the benefit growth point and development trend of my country's oil and gas industry. However, these low-quality raw materials contain rich chloride , Sulfide, inorganic salt, naphthenic acid, nitride, hydrogen sulfide, carbon dioxide, oxygen and other corrosive media, so that oil and gas industry production equipment such as refining and chemical equipment and high-sulfur natural gas purification equipment face huge corrosion risks. Moreover, with the continuous deepening of mining, processing or development and utilization, the properties of raw materials will cont...

AI Technical Summary

Problems solved by technology

[0002] With the increasing shortage of energy, the mining and processing of high-sulfur or high-acid low-quality crude oil and the development and utilization of sour natural gas have become the benefit growth point and development trend of my country's oil and gas industry. However, these low-quality raw materials contain rich chloride , sulfides, inorganic salts, naphthenic acid, nitrides, hydrogen sulfide, carbon dioxide, oxygen and other corrosive media, making oil and gas industrial production equipment such as refining and chemical equipment and high-sulfur natural gas purification equipment face huge corrosion risks

Moreover, with the continuous deepening of mining, processing or development and utilization, the properties of raw materials will continue to change, the trend of inferiority will become more obvious, and the content of corrosive media will continue to increase or change, with stronger corrosiveness, resulting in the failure of the device in the initial design stage. Anti-corrosion measures cannot fully meet the needs of actual production. For example, the materials of equipment and pipelines do not meet the anti-corrosion requirements of the new environment. The quality of process medium treatment and the effective use of corrosion inhibitors, the number and location of corrosion monitoring detection points need to be optimized, etc.

Unplanned shutdowns of devices caused by corrosion problems occur frequently, while production tasks increase year by year, which seriously affects the long-term safe operation of devices

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