Near-neutral pH corrosion of mill-scaled X-65 pipeline steel with paint primer

Wang, Shidong; Lamborn, Lyndon; Chevil, Karina; Gamboa, Erwin; Chen, Weixing

doi:10.1016/j.jmst.2020.01.016

Cited by 23 publications

(10 citation statements)

References 54 publications

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“…Further, a tiny amount of Fe 3 O 4 was found on the casing steel surface and the cement–casing interface based on the results of EDS, Raman, XPS, and XRD. Since the amount of Fe 3 O 4 used as a weighting agent in this investigation is extremely high (as shown in Table 1 ), it is possible that the majority of the Fe 3 O 4 has been consumed by the following reactions: [ 29,33,77 ]

{Fe}_{3} {normalO}_{4} + {false(CaO false)}_{3} \cdot {Al}_{2} {normalO}_{3} {+ 3CaSO}_{4} \to {Ca}_{6} {false[Fe {false(OH false)}_{6} false]}_{2} {false({SO}_{4} false)}_{3} {·26H}_{2} O (Fe‐ettringite)

{Fe}_{3} {normalO}_{4} {+ Fe + H}_{2} {CO}_{3} \to {FeCO}_{3} + H_{2} O

…”

Section: Resultsmentioning

confidence: 99%

“…[ 77 ] For the latter (Equation (17)), the Fe 3 O 4 is reductively dissolved by the galvanic coupling between anodic casing steel and the cathodic Fe 3 O 4 when the carbonic acid is prevalent at the cement–casing interface. [ 29 ] Under either condition, the depletion of Fe 3 O 4 can be rationalized. However, for the latter scenario, the galvanic coupling between Fe 3 O 4 and steel will significantly enhance the dissolution rate and localized corrosion of the steel as hypothesized in the introduction.…”

Section: Resultsmentioning

confidence: 99%

“…[28] When the steel corrosion and cement carbonation take place after long-term of corrosion exposure in the presence of CO 2 , the dissolution of Fe 3 O 4 could occur especially when the CO 2 partial pressure is high. [29,30] Under the circumstances, the steel corrosion can be accelerated under the coupling between dissolution of steel (anode) and reductive dissolution of Fe 3 O 4 (cathode). [29] It was well acknowledged that reductive dissolution of pre-formed Fe(III) corrosion products, such as Fe 3 O 4 and Fe 2 O 3 , could become coupled to the dissolution of the steel, leading to the gradual removal of Fe(III) corrosion products in anaerobic solutions containing CO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…[29,30] Under the circumstances, the steel corrosion can be accelerated under the coupling between dissolution of steel (anode) and reductive dissolution of Fe 3 O 4 (cathode). [29] It was well acknowledged that reductive dissolution of pre-formed Fe(III) corrosion products, such as Fe 3 O 4 and Fe 2 O 3 , could become coupled to the dissolution of the steel, leading to the gradual removal of Fe(III) corrosion products in anaerobic solutions containing CO 2 . [31] Wang et al reported that the reductive dissolution of Fe 3 O 4 on the steel surface was significant when the steel was exposed to simulated ground water containing 5% CO 2 for a long period of time under the normal pressure condition.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface

Wang

et al. 2022

steel research int.

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In this study, CO 2 -and Fe 3 O 4 -assisted corrosion of the cement-casing interface for the magnetite (Fe 3 O 4 ) high-density cement-casing steel system in simulated formation water is investigated under the normal and high CO 2 pressure conditions. Results show that the degradation of the cement-casing interface is affected by the competition of cement hydration and CO 2 corrosion. The migration of CO 2 and corrosive species to the cement-casing interface is facilitated under the high pressure condition, resulting in enhanced corrosion rate as compared to the normal pressure condition. The casing steel is in active corrosion state while the corrosion rate gradually increases with time. After long term of immersion, a layer of thick corrosion products with multiple cracks/ microgaps forms at the cement-casing interface, which can hardly protect the casing steel from further corrosion. The corrosion products on the steel surface are mainly FeCO 3 accompanied by a small amount of CaCO 3 and Fe 3 O 4 , suggesting the prevalence of CO 2 corrosion. The mechanism of the CO 2 -and Fe 3 O 4 -facilitated corrosion of the cement-casing interface for the magnetite high-density cement-casing system is proposed.

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{Fe}_{3} {normalO}_{4} + {false(CaO false)}_{3} \cdot {Al}_{2} {normalO}_{3} {+ 3CaSO}_{4} \to {Ca}_{6} {false[Fe {false(OH false)}_{6} false]}_{2} {false({SO}_{4} false)}_{3} {·26H}_{2} O (Fe‐ettringite)

{Fe}_{3} {normalO}_{4} {+ Fe + H}_{2} {CO}_{3} \to {FeCO}_{3} + H_{2} O

…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface

Wang

et al. 2022

steel research int.

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“…Iron hydroxide has a porous structure and will dissolve quickly in corrosive media [38]; hence it has a limited protective effect on the substrate. For the BM sample, the S 2p spectrum consists of two substances, S22− at 161.6 eV and S2− at 163.3 eV, corresponding to FeS2 (pyrite) and FeS (mackinawite).…”

Section: The Comparison Of Element Valence States In the Corrosion Pr...mentioning

confidence: 99%

Comprehending the role of the S-phase on the corrosion behavior of austenitic stainless steel exposed to H2S/CO2-saturated liquid and vapor environments

Jin²,

Wang³

et al. 2021

International Journal of Hydrogen Energy

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Microstructure, mechanical properties, corrosion and wear behavior of high-entropy alloy AlCoCrFeNix ($$x > 0$$the) and medium-entropy alloy ($$x = 0$$)

Sim

et al. 2022

J Mater Sci

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Near-neutral pH corrosion of mill-scaled X-65 pipeline steel with paint primer

Cited by 23 publications

References 54 publications

Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface

Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface

Comprehending the role of the S-phase on the corrosion behavior of austenitic stainless steel exposed to H2S/CO2-saturated liquid and vapor environments

Microstructure, mechanical properties, corrosion and wear behavior of high-entropy alloy AlCoCrFeNix ($$x > 0$$the) and medium-entropy alloy ($$x = 0$$)

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Near-neutral pH corrosion of mill-scaled X-65 pipeline steel with paint primer

Cited by 23 publications

References 54 publications

Experimental Investigation of CO2‐ and Fe3O4‐Assisted Corrosion at the Cement–Casing Interface

Experimental Investigation of CO2‐ and Fe3O4‐Assisted Corrosion at the Cement–Casing Interface

Comprehending the role of the S-phase on the corrosion behavior of austenitic stainless steel exposed to H2S/CO2-saturated liquid and vapor environments

Microstructure, mechanical properties, corrosion and wear behavior of high-entropy alloy AlCoCrFeNix ($$x > 0$$the) and medium-entropy alloy ($$x = 0$$)

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Product

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Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface

Experimental Investigation of CO₂‐ and Fe₃O₄‐Assisted Corrosion at the Cement–Casing Interface