The Roles of H2S Gas in Behavior of Carbon Steel Corrosion in Oil and Gas Environment: A Review

Asmara, Yuli Panca

doi:10.22441/jtm.v7i1.2279

Cited by 21 publications

(9 citation statements)

References 24 publications

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“…Corrosion impacts the generation of atomic hydrogen, which can diffuse into steel and accumulate and form blisters, as seen in the optical microscopic images. The process parameters of the failed sample show the presence of sulfides, carbide, and free sulfur, thus making it a complex system to predict corrosion rates [33]. A lot of research has been undertaken to understand the effect of H 2 S on the CO 2 system [34][35][36][37][38][39].…”

Section: Correlating Of Surface Analysis Resultsmentioning

confidence: 99%

Impact of Prolonged Exposure to Sour Service on the Mechanical Properties and Corrosion Mechanism of NACE Carbon Steel Material Used in Wet Sour Gas Multiphase Pipeline

et al. 2022

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The oil and gas industry is involved with severe corrosive/sour environmental conditions due to H2S, CO2, and moisture content. The National Association of Corrosion Engineers (NACE) has developed standards to enable users to select suitable materials for given sour conditions which utilize laboratory testing. A failed piping sample (API-5L-X65) was removed from a pipeline after 15 years of service. Optical microscopy was used to compare the microstructure of the corroded sample near the exposed surface to both the service environment, and further away from it. Moreover, pitted samples were analyzed using a scanning electron microscope coupled with energy dispersive X-ray (SEM/EDS) to understand the deposits’ morphology. Furthermore, XPS analysis proves the presence of a significant content of sulfur compound. Additionally, the mechanical properties of both corroded and non-corroded samples were evaluated and compared. Micro-hardness was carried out on the cross-section of the removed sample to understand any evident hardness variation from the inner diameter (ID) to the outer diameter (OD) of the piping. All the results suggest that prolonged service exposure has resulted in the development of micro defects, resulting in the reduction of strength and impact toughness, and the reduction in the hardness at the exposed surface of the corroded piping. Understanding the corrosion mechanism of pipelines exposed to sour media in the long-term helps in repair/replacement planning and extending the usable design life of the material, and paving the way for the oil and gas industry to develop additional ways to monitor the changes in the critical materials’ properties when exposed to sour service.

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Section: Correlating Of Surface Analysis Resultsmentioning

confidence: 99%

Impact of Prolonged Exposure to Sour Service on the Mechanical Properties and Corrosion Mechanism of NACE Carbon Steel Material Used in Wet Sour Gas Multiphase Pipeline

et al. 2022

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“…At the same time, the presence of S element was detected in the corrosion pit, which inferred that H2S may be contained in the associated gas component. H2S dissolves in water and ionizes a large amount of H + , resulting in a drop in pH value and pitting corrosion of metal pipelines, which will damage pipeline transportation and process equipment [16][17][18][19][20] .…”

Section: Corrosion Product Analysismentioning

confidence: 99%

Failure Analysis of The Weld in Shale Gas Gathering Pipeline

Ming-yu¹,

Gao²,

Liu³

et al. 2022

J. Phys.: Conf. Ser.

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Perforations occurred at the weld of a shale gas gathering pipeline in Shunan gas field. In order to explore the specific causes of weld failure, this paper carried out analysis by means of Macroscopic detection, Mechanics property analysis, Metallographic analysis, Scanning electron microscopy (SEM), Energy spectrum analysis (EDS) and other means. The analysis results show that CO2 corrosion is the main cause of weld failure of flat shale gas gathering pipeline. In addition, there are obvious defects in the weld and large residual stress, coupled with the presence of S element, which directly aggravate the corrosion perforation of the weld. In this paper, the specific reasons for weld failure of a shale gas gathering pipeline in Shunan gas field are explored, which can provide some reference for anti-corrosion of shale gas gathering pipeline.

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“…H 2 S acidifies the water, which causes pitting corrosion to carbon steel pipelines. Corrosion reaction increases fast when it combines oxygen and carbon dioxide (CO 2 ). , Thus, they can significantly reduce the service life of transportation pipelines and processing facilities in the oil and gas industries. Natural gas that contains any of the acid gases like carbon dioxide or hydrogen sulfide is termed an acid gas. , …”

Section: Introductionmentioning

confidence: 99%

Estimation of Thermodynamic Stability of Methane and Carbon Dioxide Hydrates in the Presence of Hydrogen Sulfide

et al. 2023

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This work presents the effect of hydrogen sulfide gas on the phase behavior of both methane gas hydrate formation and CO 2 gas hydrate formation. For this, the thermodynamic equilibrium conditions for various gas mixtures containing CH 4 /H 2 S and CO 2 / H 2 S are initially found by simulation using PVTSim software. These simulated results are compared using an experimental approach and the available literature. Then, the thermodynamic equilibrium conditions generated by simulation are used for generating Hydrate Liquid−Vapor-Equilibrium (HLVE) curves to understand the phase behavior of gases. Further, the effect of hydrogen sulfide on the thermodynamic stability of methane and carbon dioxide hydrates was studied. It was clearly observed from the results that an increase in H 2 S composition in the gas mixture decreases the stability of CH 4 and CO 2 hydrates.

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The Roles of H2S Gas in Behavior of Carbon Steel Corrosion in Oil and Gas Environment: A Review

Abstract: Abstract--Hydrogen sulfide (H2S) is the most dangerous element which exists in oil and

Cited by 21 publications

References 24 publications

Impact of Prolonged Exposure to Sour Service on the Mechanical Properties and Corrosion Mechanism of NACE Carbon Steel Material Used in Wet Sour Gas Multiphase Pipeline

Impact of Prolonged Exposure to Sour Service on the Mechanical Properties and Corrosion Mechanism of NACE Carbon Steel Material Used in Wet Sour Gas Multiphase Pipeline

Failure Analysis of The Weld in Shale Gas Gathering Pipeline

Estimation of Thermodynamic Stability of Methane and Carbon Dioxide Hydrates in the Presence of Hydrogen Sulfide

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