Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System
Microorganisms are often observed in the produced medium during the oil and gas extraction process. Corrosion caused by CO<sub>2</sub> and microorganisms is found on the inner wall of the metal gathering pipelines during the production process. In order to explore the corrosion character...
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MDPI AG
2025-02-01
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| Series: | Microorganisms |
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| author | Ming Sun Xinhua Wang Wei Cui Chuntao Shi |
| author_facet | Ming Sun Xinhua Wang Wei Cui Chuntao Shi |
| author_sort | Ming Sun |
| collection | DOAJ |
| description | Microorganisms are often observed in the produced medium during the oil and gas extraction process. Corrosion caused by CO<sub>2</sub> and microorganisms is found on the inner wall of the metal gathering pipelines during the production process. In order to explore the corrosion characteristics of L245 materials under the combined action of sulfate-reducing bacteria (SRB) and CO<sub>2</sub>, a CO<sub>2</sub>-SRB corrosion system was established in this paper. Experimental research on corrosion rate, surface morphology, and corrosion products analysis was conducted. The effect of temperature on the corrosion of SRB while CO<sub>2</sub> is saturated and the partial pressure is 0.06 MPa was investigated. It was observed that the corrosion is more serious in the CO<sub>2</sub>-SRB corrosion system than that in the single CO<sub>2</sub> corrosion system. At 40 °C, the corrosion caused by CO<sub>2</sub> is 0.0597 mm/a, and the corrosion caused by SRB is 0.0766 mm/a. So, more attention should be paid to the corrosion status of gathering pipelines with microorganisms. Further, the activity of SRB is stronger when the temperature of the medium is 40 °C, and corrosion on L245 samples is more obvious under the experimental conditions in this article. In order to reduce the corrosion damage of metal pipelines with microorganisms, the temperature should be well controlled to reduce the activity of SRB during the production process. |
| format | Article |
| id | doaj-art-d5f23615e16f4c779de022d22bee866e |
| institution | DOAJ |
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| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Microorganisms |
| spelling | doaj-art-d5f23615e16f4c779de022d22bee866e2025-08-20T02:42:27ZengMDPI AGMicroorganisms2076-26072025-02-0113350010.3390/microorganisms13030500Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion SystemMing Sun0Xinhua Wang1Wei Cui2Chuntao Shi3College of Mechanical & Energy Engineering, Beijing University of Technology, Beijing 100124, ChinaCollege of Mechanical & Energy Engineering, Beijing University of Technology, Beijing 100124, ChinaChina Special Equipment Inspection & Research Institute, Beijing 100129, ChinaChina Special Equipment Inspection & Research Institute, Beijing 100129, ChinaMicroorganisms are often observed in the produced medium during the oil and gas extraction process. Corrosion caused by CO<sub>2</sub> and microorganisms is found on the inner wall of the metal gathering pipelines during the production process. In order to explore the corrosion characteristics of L245 materials under the combined action of sulfate-reducing bacteria (SRB) and CO<sub>2</sub>, a CO<sub>2</sub>-SRB corrosion system was established in this paper. Experimental research on corrosion rate, surface morphology, and corrosion products analysis was conducted. The effect of temperature on the corrosion of SRB while CO<sub>2</sub> is saturated and the partial pressure is 0.06 MPa was investigated. It was observed that the corrosion is more serious in the CO<sub>2</sub>-SRB corrosion system than that in the single CO<sub>2</sub> corrosion system. At 40 °C, the corrosion caused by CO<sub>2</sub> is 0.0597 mm/a, and the corrosion caused by SRB is 0.0766 mm/a. So, more attention should be paid to the corrosion status of gathering pipelines with microorganisms. Further, the activity of SRB is stronger when the temperature of the medium is 40 °C, and corrosion on L245 samples is more obvious under the experimental conditions in this article. In order to reduce the corrosion damage of metal pipelines with microorganisms, the temperature should be well controlled to reduce the activity of SRB during the production process.https://www.mdpi.com/2076-2607/13/3/500oil and gas gathering pipelinesCO<sub>2</sub>-SRB corrosion systemeffect of temperatureL245 pipeline steel |
| spellingShingle | Ming Sun Xinhua Wang Wei Cui Chuntao Shi Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System Microorganisms oil and gas gathering pipelines CO<sub>2</sub>-SRB corrosion system effect of temperature L245 pipeline steel |
| title | Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System |
| title_full | Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System |
| title_fullStr | Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System |
| title_full_unstemmed | Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System |
| title_short | Effect of Temperature on Corrosion of L245 Steel Under CO<sub>2</sub>-SRB Corrosion System |
| title_sort | effect of temperature on corrosion of l245 steel under co sub 2 sub srb corrosion system |
| topic | oil and gas gathering pipelines CO<sub>2</sub>-SRB corrosion system effect of temperature L245 pipeline steel |
| url | https://www.mdpi.com/2076-2607/13/3/500 |
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