Corrosion mechanism and anticorrosion technology of oil and gas gathering and transportation pipeline

Si-nan, Cheng; Yuan, Wei

doi:10.1088/1755-1315/859/1/012115

Cited by 5 publications

(3 citation statements)

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“…Therefore, the corrosion of the gathering pipelines on exposure to oxygen and carbon dioxide seriously restricts the development of ORAF. With the increase in service life, the internal corrosion of gathering pipelines is becoming more and more serious . Crude oil leakage often occurs, which pollutes the environment and even causes high safety risks and serious economic losses.…”

Section: Introductionmentioning

confidence: 99%

“…With the increase in service life, the internal corrosion of gathering pipelines is becoming more and more serious. 7 Crude oil leakage often occurs, which pollutes the environment and even causes high safety risks and serious economic losses. Liang et al 8 found that material properties are not the main reason for oil pipeline failure accidents, and leakage is mainly caused by spot corrosion perforation on the inner wall of the pipeline.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Evaluation of Anticorrosion of a Standard 20# Gathering Pipeline by Injecting Oxygen-Reduced Air into Simulated In-Service Wells

Hu,

Xue,

Shi

et al. 2024

ACS Omega

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Oxygen-reduced air flooding (ORAF) can effectively improve oil recovery in low-permeability reservoirs, but oxygen corrosion and CO2 corrosion in downstream gathering pipelines are inevitable due to the existence of oxygen, which limits the popularization and application of ORAF. In this paper, research on the corrosion inhibitor is carried out for the gathering pipeline of an oilfield with ORAF in China. Under the conditions of a simulated onsite gathering pipeline, 6 kinds of anti-CO2 corrosion inhibitors and 6 kinds of antioxygen corrosion inhibitors were selected to evaluate and screen the effects of 20# steel by the dynamic weight loss method. Two antioxygen corrosion inhibitors KY-12 and KY-17 and one anti-CO2 corrosion inhibitor A were selected for the experiment. The corrosion inhibition rates of the three inhibitors reached 83.67, 91.49, and 78.44%, respectively, at a temperature of 40 °C and an inhibitor concentration of 1000 mg/L. Through the experimental evaluation of three primary corrosion inhibitors at different temperatures (25, 40, and 55 °C) and different concentrations (400, 500, 800, 1000, and 2000 mg/L), the KY-17 corrosion inhibitor with the best stability at different temperatures was selected, and the corrosion inhibition effect was the best at different concentrations, with the highest slow release rate reaching 92.7%. This conclusion has a good reference significance for the selection and dosage of corrosion inhibitors for downstream gathering pipelines of the ORAF oilfield.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Anticorrosion of a Standard 20# Gathering Pipeline by Injecting Oxygen-Reduced Air into Simulated In-Service Wells

Hu,

Xue,

Shi

et al. 2024

ACS Omega

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“…In petroleum media, the core factor of corrosion is sulfur: compounds of sulfur precipitated in the pipeline react with the iron in the pipeline to produce ferrous sulfate compounds. Due to the presence of free acid, hydrolysis is intensified and corrosion is more serious [1,2]. To solve this problem, scholars have proposed a series of methods, including pipeline stray current interference control technology, pipeline cathodic protection technology, and pipeline anticorrosion layer technology.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fluorocarbon Polymers on Hydrophobicity, Wear Resistance and Corrosion Resistance of Epoxy Resins

et al. 2023

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In order to meet the anticorrosion and wear resistance requirements of petroleum pipelines, we selected a polymer (FC) containing difunctional hydroxyl propyl acrylate (HPA) and perfluoroalkyl ethyl acrylate (TEAc-N) free radical polymerization to prepare hydrophobic fluorocarbon chain oil and a hydroxyl special functional group. Combined with tetrafluororesin (F4), the hydrophobic, wear-resistant and corrosion-resistant properties of epoxy coating were improved. The optimum synthesis ratio of TEAc-N:HPA was 9:1, and the FC polymer with the best hydrophobicity was prepared. The hydrophobic angle of the coating was 100.3% higher than that of pure Q235 section steel. By adding 5 wt.% of FC to epoxy resin (EP), the hydrophobicity increased by 65.4% and oleophobicity increased by 32.1% compared with pure EP. The coefficient of friction was reduced by 73.8%. EIS test results showed that the impedance modulus in the low frequency region (|Z|0.01 Hz) was two orders of magnitude higher than that of the pure epoxy coating. The composite coating has sufficient utility to meet the wear, heat and corrosion resistance requirements for oil pipeline transportation.

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Study on Mechanism and Protection of Lightning Overvoltage of Anticorrosive Layer of Buried Oil and Gas Pipeline Adjacent to Power Line

Jia,

Yang,

et al. 2024

Lecture Notes in Electrical Engineering

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Corrosion mechanism and anticorrosion technology of oil and gas gathering and transportation pipeline

Cited by 5 publications

References 0 publications

Experimental Evaluation of Anticorrosion of a Standard 20# Gathering Pipeline by Injecting Oxygen-Reduced Air into Simulated In-Service Wells

Experimental Evaluation of Anticorrosion of a Standard 20# Gathering Pipeline by Injecting Oxygen-Reduced Air into Simulated In-Service Wells

Effect of Fluorocarbon Polymers on Hydrophobicity, Wear Resistance and Corrosion Resistance of Epoxy Resins

Study on Mechanism and Protection of Lightning Overvoltage of Anticorrosive Layer of Buried Oil and Gas Pipeline Adjacent to Power Line

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