Numerical simulation of the hydrogen trapping effect on crack propagation in API 5CT P110 steel under cathodic overprotection

Carrasco, Jorge Palma; Diniz, Diego David Silva; Barbosa, José Maria Andrade; Silva, Antonio Almeida; Santos, Marco Antônio dos

doi:10.1016/j.ijhydene.2018.12.022

Cited by 18 publications

(9 citation statements)

References 31 publications

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“…8b presents stainless steel and nickel alloys material families. Both nickel and stainless steel have good corrosion resistance as established in the studies of (Craig and Smith 2011;Carrasco et al 2019;Liu et al 2020;Qi et al 2020). Similarly, materials on the top righthand corner demonstrate good performance but are relatively expensive and heavy compared to those on the bottom lefthand corner.…”

Section: Selection Based On Induced Stress and Corrosionmentioning

confidence: 88%

Multi-criteria material selection for casing pipe in shale gas wells application

Mohammed

Bartlett

Oyeneyin³

et al. 2022

J Petrol Explor Prod Technol

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The conventional method of casing selection is based on availability and/or order placement to manufacturers based on certain design specifications to meet the anticipated downhole conditions. This traditional approach is very much dependent on experience as well as constructing oil and gas wells at minimum budget. However, this material selection approach is very limited in meeting the requirement of shale gas wells. This study utilises the material performance indices and ANSYS Granta database to examine three different casing pipe buckling scenarios including the buckling with corrosion potentials and buckling with impact and long-term service temperature conditions. Consequently, numerical evaluations of the response of the selected casing materials established the stress, deformations, and safety factor for the first scenario (shale gas well with buckling tendencies). The significance of this new method is added advantage in terms of integrating materials’ physicochemical, thermal and mechanical properties and the casing functional performance to establish ideal selection within the design space or requirements. Results obtained in this study show that there are optional materials that outperform the most common casing grades (P110 and Q125) utilised in shale gas development in terms of both safety and cost. This study established a procedure for evaluating optimum performance between cost, safety, performance indices and materials’ physical and mechanical properties for a typical well design scenario. This procedure will assist the design engineer to justify the selection of a particular material(s) safely and technically for a given shale well casing application in future. In all the 10 materials investigated, even though the P110 (API casing grade) meets the buckling design scenario and widely used in shale gas well development, there are many alternative viable material candidate options that outperform P110 Grade with the best material candidate studied in this work being BS 145.

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Section: Selection Based On Induced Stress and Corrosionmentioning

confidence: 88%

Multi-criteria material selection for casing pipe in shale gas wells application

Mohammed

Bartlett

Oyeneyin³

et al. 2022

J Petrol Explor Prod Technol

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“…[ 71,74 ] Giarola et al [ 75 ] suggested that the increase in bainitic structure, and hence irreversible trap sites, was responsible for decrease in susceptibility to HE. Furthermore, Carrasco et al [ 76 ] also observed that the duration for crack initiation and growth is higher when microstructure consists of irreversible trap sites compared to that which consists of reversible trap sites. Similarly, the increase in irreversible traps like precipitates helps to draw hydrogen away from dislocations within the microstructure, reducing localized plasticity.…”

Section: Microstructure Constituents Influencing Sscmentioning

confidence: 99%

A Review of the Factors That Can Increase the Risk of Sulfide Stress Cracking in Thermomechanical Controlled Processed Pipeline Steels

Hiew Sze Kei,

van Haaften,

Britton

et al. 2023

Adv Eng Mater

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This review aims to improve our understanding of the important factors which influence the susceptibility of thermomechanical controlled processed (TMCP) steels to sulfide stress cracking (SSC). Mechanisms involved in hydrogen embrittlement (HE) from three perspectives are focused on: the microstructure constituents of TMCP steels; environmental factors; and fracture mechanism of SSC. Microstructures are reviewed as they affect the diffusion and trapping of hydrogen that can reduce the resistance to fracture. Environmental factors discussed highlight that when exposed to an aqueous H2S environment, a sulfide layer can form and influence the ingress of hydrogen, and this is affected by pH, temperature, and H2S partial pressure. Fracture is influenced by the nature of the crack tip and the crack tip plastic zone during crack propagation, and hydrogen can significantly affect crack tip growth. This review provides a critical assessment of the interplay between these three factors and aims to provide understanding to enhance our engineering approaches to manage and mitigate against fracture of TMCP steels.

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“…Submarine pipelines are exposed to harsh environmental conditions [1,2,3,4], such as high hydrostatic pressure, and cathodic protection is often applied during the service process. However, cathodic protection elevates the hydrogen content in the material [5,6,7,8,9], while high hydrostatic pressure will also cause a rise in the hydrogen content [10,11]. Does the dual effect lead to any changes in the microstructure and mechanical properties of the material?…”

Section: Introductionmentioning

confidence: 99%

Characterization of a Surface Hydrogen Charging Product Affecting the Mechanical Properties in 2205 Duplex Stainless Steel

Kan

Yang

2019

Materials

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When 2205 duplex stainless steel (DSS) is immersed in simulated seawater under high hydrostatic pressure, or in an electrochemically hydrogen charged state, a spindle-shaped product is found in the ferrite phase that seriously deteriorates the mechanical properties of 2205 DSS. This paper systematically studied the composition, structure, and properties of the hydrogen charging product. The results of a slow strain rate tensile test show that the hydrogen charging product evidently reduces the elongation of 2205 DSS, and microcracks mainly initiate at the interface between the hydrogen charging product and the ferrite matrix at either a low or a high strain rate. However, the elongation recovers to that of the hydrogen free sample after heating the sample at 300 °C for 0.5 h. The nano-hardness and reduced modules of the product are higher than those of the ferrite and austenite phases. An element analysis by energy dispersive spectroscopy (EDS) and secondary ion mass spectrometry (SIMS) indicates that the Ni and H contents in the hydrogen charging product are higher than in the normal ferrite area, and X-ray diffraction shows the characteristic peak of iron hydride at 40.07°. Moreover, a differential scanning calorimeter (DSC) test demonstrated that the phase decomposition temperature of the product is 268 °C, which coincides with the fact that it dissolves at a high temperature caused by the focused electron beam during transmission electron microscopy (TEM) analysis. All experimental results indicate that the hydrogen charging product is a hydride of FeH or (Fe, Ni)H.

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Numerical simulation of the hydrogen trapping effect on crack propagation in API 5CT P110 steel under cathodic overprotection

Cited by 18 publications

References 31 publications

Multi-criteria material selection for casing pipe in shale gas wells application

Multi-criteria material selection for casing pipe in shale gas wells application

A Review of the Factors That Can Increase the Risk of Sulfide Stress Cracking in Thermomechanical Controlled Processed Pipeline Steels

Characterization of a Surface Hydrogen Charging Product Affecting the Mechanical Properties in 2205 Duplex Stainless Steel

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