Products tagged with 'annular corrosion'

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Exploring CO2 Annular Corrosion In Flexible Pipes At Different Pressures

Product Number: 51321-16796-SG

Author: Maira Eleni Mitzithra; John Rothwell; Shiladitya Paul; Fabricio Pinheiro dos Santos

Publication Date: 2021

$20.00

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Exploring High Pressure CO2 Annular Corrosion in Flexible Pipes

Product Number: 51320-14740-SG

Author: Maria Eleni Mitzithra, Shiladitya Paul, John Rothwell, Fabricio Pinheiro dos Santos

Publication Date: 2020

$20.00

This paper focuses on the corrosion behaviour of high strength flexible wire material immersed in de-aerated 3.5% NaCl solution under 40bar CO2 partial pressure at different test temperatures: 30°C, 40°C and 60°C; different CO2 fluxflux: 0.1ml/min/cm2 and 0.0008ml/min/cm2; different volume of solution to surface area of sample (V/S) ratios: 1ml/cm2 and 0.3ml/cm2 and test durations: 2 and 4 months. The tests were carried out in a lab-scale test system designed and built at TWI Ltd for the simulation of complex annulus environments. The corrosion rates and the maximum depth of the localized attack for tests at different temperatures were recorded as: 30°C>60°C>40°C. This is linked with the stability, structure and thickness of the precipitated iron carbonate scaling. The lowest corrosion rate was recorded for the test with the lowest V/S and slowest CO2 flux, linked with a thin and compact iron carbonate layer. The effect of the flow and degree of confinement are significant at high CO2 partial pressures.

Products tagged with 'annular corrosion'

Exploring CO2 Annular Corrosion In Flexible Pipes At Different Pressures

Exploring High Pressure CO2 Annular Corrosion in Flexible Pipes

Association for Materials Protection and Performance