Chemical injection policy for internal corrosion prevention of South Pars sea-pipeline: A case study

Davoudi, Mehdi; Heidari, Yashar; Safadoost, Alireza; Samieirad, S.

doi:10.1016/j.jngse.2014.09.017

Cited by 16 publications

(35 citation statements)

References 7 publications

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“…Corrosion of natural gas facilities impacted by CO 2 in the gas stream Davoudi et al (2014) explained the chemical injection policy aimed at preventing internal corrosion in the 32-inch, 110-km, submarine, multi-phase, pipelines linking each offshore platform in the South Pars gas-condensate field (Iran) to shore. Feed fluids from the field's wells are a mixture of gas, condensate and brine.…”

Section: Enhanced Gas Recovery Involving Co 2 Injected Into Undergroumentioning

confidence: 99%

Carbon dioxide (CO 2 ) handling and carbon capture utilization and sequestration (CCUS) research relevant to natural gas: A collection of published research (2009–2015)

Wood

2015

Journal of Natural Gas Science and Engineering

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Section: Enhanced Gas Recovery Involving Co 2 Injected Into Undergroumentioning

confidence: 99%

Carbon dioxide (CO 2 ) handling and carbon capture utilization and sequestration (CCUS) research relevant to natural gas: A collection of published research (2009–2015)

Wood

2015

Journal of Natural Gas Science and Engineering

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“…Chemical prevention through the injection of inhibitors is a more cost-effective method in protecting facilities against internal corrosion (Garcia-Arriaga et al 2010;Trabanelli 1991;Stewart et al 2009;Davoudi et al 2014;Obot et al 2020). Therefore, a range of chemicals have been reported in the literature to control this type of corrosion (Finšgar and Jackson 2014;Miksic et al 2009;Javidi et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Field test investigation of the performance of corrosion inhibitors: a case study

Gharbi

Chouicha

Kelland

2021

J Petrol Explor Prod Technol

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Corrosion is considered one of the major problems that affect flow assurance during hydrocarbon production. This irreversible phenomenon has the ability to cause serious material failure in the oil and gas industry. Consequently, heavy capital and operational costs are required to prevent corrosion processes. Sweet corrosion of raw gas production facilities in an Algerian gas field manifests inside surface installations, which leads to gas production interruption and high intervention costs. To mitigate this type of corrosion, many methods can be applied such as the selection of appropriate materials, the injection of inhibitors, and the use of protective coating. In this work, the main points of gas production system that have been affected by corrosion and the inspection techniques used in the studied field were reviewed. Moreover, the efficiency of two types of two corrosion inhibitors (film-forming/neutralizing and film-forming chemicals) was studied by measuring the corrosion rate in the field and conducting chemical analyses on the produced water samples in the laboratory. The results of laboratory analyses regarding pH and iron content measurement point out that the injection of film-forming/neutralizing chemical significantly shifted the pH of the medium from acid to more neutral value and decreased the iron content, while the injection of film-forming inhibitor affected only the iron content by decreasing its tenor in the water samples. These results confirm the functions of each inhibitor to protect metal against internal corrosion. The comparison between the single- and double-function inhibitors reveals that the film-forming inhibitor (CK981DZ) outperforms the film-forming/ neutralizing chemical with an efficiency that exceeds 99% at low injection rate. Moreover, it provides good compatibility and stability all through its injection path. Meanwhile, the application of double function inhibitor (film-forming/neutralizing) significantly reduced the corrosion rate of carbon steel structures, but it involved the formation of deposits in the gas processing plant. The findings from this study can help give a better understanding of the methodology of corrosion inhibitor performance evaluation in real condition of gas production, also the criteria of inhibitor screening based on laboratory and field tests.

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“…Corrosion and thermal stability are connected since by-product due to amine loss can increase corrosion. Other reasons for corrosion are for example heat stable amine salts, water vapor, organic acids, oxygen and acid gas [40][41][42]. So when looking for solvent blends for combined H2S removal and water control, it is essential to consider the corrosivity.…”

Section: Introductionmentioning

confidence: 99%

Thermal stability and corrosion of tertiary amines in aqueous amine and amine-glycol-water solutions for combined acid gas and water removal

Shoukat

Baumeister

Pinto

et al. 2019

Journal of Natural Gas Science and Engineering

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Chemical injection policy for internal corrosion prevention of South Pars sea-pipeline: A case study

Cited by 16 publications

References 7 publications

Carbon dioxide (CO 2 ) handling and carbon capture utilization and sequestration (CCUS) research relevant to natural gas: A collection of published research (2009–2015)

Carbon dioxide (CO 2 ) handling and carbon capture utilization and sequestration (CCUS) research relevant to natural gas: A collection of published research (2009–2015)

Field test investigation of the performance of corrosion inhibitors: a case study

Thermal stability and corrosion of tertiary amines in aqueous amine and amine-glycol-water solutions for combined acid gas and water removal

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