...N. Laycock; V. Metri; S. Rai; A. Sabhapondit; J. Hartog; S. Ghosh; A.M. Abdullah The presence of CO₂ and H₂S in wet gas pipelines often creates the potential for high internal corrosion rates, which is typically mitigated by the injection of corrosion inhibitors. In practice...

...Xingyu Du; Yujie Dai; Bailing Zheng; Xinqi zhu Pipeline corrosion is a significant challenge in oil and gas transportation, leading to economic losses and environmental hazards. Traditional detection methods are time-consuming and labor-intensive, necessitating the development of more efficient...

... the pH₂S threshold is not pertinent it does indicate that further study of the limits of H₂S in SC-CO₂ is important for future CO₂ pipeline applications. Moreover, the application of partial pressures in dense phase systems is incorrect and to establish a justifiable...

...Liang Dong; Yan Shen; Tiansiyu Gan Oil and gas pipelines are susceptible to direct current interference from nearby third-party cathodic protection or direct current transmission systems. This paper proposes a new method for analyzing direct current interference and its mitigation measures...

... suggests several machine-learning models as well as traditional multiple linear regression model to predict the MIC in sewer pipelines. The models can be categorized into three sections: (i) stand-alone models (group method of data handling, generalized regression neural network, radial basis function...

...T. Ramgopal; Sandeep Chawla; Narasi Sridhar; Francois Ayello; Alexis Simon Aging pipeline infrastructure is subject to various degradation modes, in particular, there is a growing concern about stress corrosion cracking (SCC) from external environments. The current program focused on developing...

... January 2022 02 January 2022 © 2022, AMPP 2022 carbon steel pipelines pH H₂S partial pressure hydrogen-induced cracking hydrogen permeation hydrogen sulfide oil and gas, sour environment sulfide stress cracking I n the oil and gas industry, oil country tubular...

...Zhuwu Zhang; Jiuhong Zhang; Jinchang Wang; Y. Frank Cheng Local corrosion at a defect on a pipeline was assessed using both 2-dimensional (2D) and 3-dimensional (3D) finite element models under mechano-electrochemical (M-E) interaction. While the M-E interaction increases corrosion activity...

...Narasi Sridhar : This paper provides a perspective on the stress corrosion cracking (SCC) of buried pipelines based on a paper by R.N. Parkins, et al., and associated works. The paper by Parkins, et al., included an identification of factors controlling near-neutral pH SCC (NNPHSCC...

...M. Goldman; J.J. Noël; D.W. Shoesmith Coatings and cathodic protection of pipelines can fail leading to exposure of underlying steel substrate to environmental conditions. In Canada, these conditions are typically alkaline and can contain dissolved sulfides. Sulfides are known to accelerate...

...Hongxing Liang; Rebecca Filardo Schaller; Edouard Asselin The effect of predeformation on corrosion of ASTM A106B pipeline steel exposed to 1.7 mM sodium chloride droplets covered by simulated diluted bitumen was evaluated. The microstructures of ASTM A106B pipeline steel with and without...

...A. Fatehi; A. Eslami; M.A. Golozar; K. Raeissi; R. Ashari In this study, the effect of cathodic protection and sulfate-reducing bacteria (SRB) on corrosion and potential distribution of pipeline steel under simulated coating disbondment was investigated. In this regard, a setup simulating a coating...

...Srdjan Nešić; Aria Kahyarian; Yoon Seok Choi In the present study, the implementation of a comprehensive mechanistic predictive model for corrosion of mild steel in the oil and gas transmission pipelines is described. The present model simultaneously accounts for all major corrosion scenarios...

... January 2018 16 June 2018 16 June 2018 © 2018, NACE International 2018 carbon steel hydrogen-induced cracking hydrogen sulfide microstructure oil and gas pipelines In oil and gas industry, pipeline for natural gas transportation is exposed to wet H₂S...

...Hongxing Liang; Jing Liu; Rebecca Filardo Schaller; Edouard Asselin A 1.7 mM NaCl droplet on X100 pipeline steel covered by paraffin oil is used to simulate the corrosive environment encountered in heavy oil or bitumen pipelines. The development of corrosion under the droplet was monitored...

...Huiwen Tian; Y. Frank Cheng In this work, two novel inhibitors containing multi-functional groups were developed, and their inhibition performance for corrosion of X65 pipeline steel in CO₂-saturated oilfield formation water was investigated using electrochemical measurements, surface...

... into low alloyed carbon steels through the corrosion behavior on the steel surface and results in environmental cracking such as hydrogen-induced cracking (HIC) and sulfide stress cracking. Since an accident involving the rupture of a sour gas pipeline in the 1970s, ^{1 - 2} many studies have...

...Yao Yang; Y. Frank Cheng In this work, corrosion at the tip of stress corrosion cracks on an X65 pipeline steel was investigated under various stress levels in a near-neutral pH solution. Electrochemical and micro-electrochemical measurements, combined with surface characterization and stress...

...Weixing Chen Stress corrosion cracking (SCC) of pipeline steels in near-neutral pH environments has remained a significant integrity risk for oil and gas pipelines. Although it has traditionally been termed “stress corrosion cracking,” crack growth has never been observed under a static loading...

...D. Kuang; Y.F. Cheng In this work, the effect of the size and geometrical shape of coating defects on pipeline corrosion under alternating current (AC) interference in a deoxygenated, near-neutral pH bicarbonate solution was studied by direct current (DC) potential analysis, polarization curve...