Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

Simulating Corrosion And Scale Interactions In Autoclave Experiments: A Sensitivity Study

Picture for Simulating Corrosion And Scale Interactions In Autoclave Experiments: A Sensitivity Study
Available for download

Carbon dioxide (CO2) saturated brines containing high levels of calcium are commonly encountered across the energy sector: from hydrocarbon recovery to the harvesting of geothermal energy and re-deposition of CO2 for permanent storage. These brines originate in deep underground reservoirs at elevated pressures and temperatures. Despite susceptibility to corrosive attack under these conditions, carbon steels are the preferred choice of pipeline materials for such processes, attributable to their low cost, availability and ease of manufacture.

Product Number: 51322-17622-SG
Author: Robert Jacklin, Joshua Owen, Danny Burkle, Anne Neville, Richard C. Woollam, Richard C. Woollam
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
$0.00
$20.00
$20.00

In aqueous carbon dioxide (CO2) corrosion of carbon steels, the presence of calcium ions influences the kinetics of corrosion product formation and can affect both general and localized forms of attack. When conducting laboratory experiments, understanding the transient solution chemistry due to the corrosion process is critical when evaluating the effects of calcium on corrosion behavior. Autoclave experiments were conducted at 80°C and 5 barg with 3 brines containing 0, 1000 and 5000 mg/l of Ca2+. Iron flux into the brine was varied using high and low area to volume (A/V) ratios. Results from mass loss and electrochemical measurement techniques show that the presence of calcium reduces initial corrosion rates but slows down the formation of more protective corrosion product layers. A higher A/V ratio led to much faster corrosion product formation and altered the composition of the resulting corrosion products in the presence of calcium ions. The results demonstrate how conflicting views on the role of calcium can be observed depending on the A/V ratio and test duration.

In aqueous carbon dioxide (CO2) corrosion of carbon steels, the presence of calcium ions influences the kinetics of corrosion product formation and can affect both general and localized forms of attack. When conducting laboratory experiments, understanding the transient solution chemistry due to the corrosion process is critical when evaluating the effects of calcium on corrosion behavior. Autoclave experiments were conducted at 80°C and 5 barg with 3 brines containing 0, 1000 and 5000 mg/l of Ca2+. Iron flux into the brine was varied using high and low area to volume (A/V) ratios. Results from mass loss and electrochemical measurement techniques show that the presence of calcium reduces initial corrosion rates but slows down the formation of more protective corrosion product layers. A higher A/V ratio led to much faster corrosion product formation and altered the composition of the resulting corrosion products in the presence of calcium ions. The results demonstrate how conflicting views on the role of calcium can be observed depending on the A/V ratio and test duration.

Product tags
Also Purchased
Picture for Storage Well Cathodic Protection Comparative Assessment
Available for download

Storage Well Cathodic Protection Comparative Assessment

Product Number: 51322-17647-SG
Author: Daniel Fingas, Jean-Patrick Boudreault, Bradley Jefferies
Publication Date: 2022
$20.00

When two long-time operators of natural gas storage wells in southwestern Ontario merged, it was an opportune time for the combined company to evaluate the effectiveness and impact of cathodic protection (CP). Staff from both legacy operators expressed general satisfaction with the longevity of their storage wells, typically 30+ years, but they had relied on two different approaches to corrosion control: one had isolated wells from flowlines and operated without CP, while the second had resistively bonded wells to cathodically protected flowlines. For the second operator, typical well currents were in the range of ~3 A.
Picture for Simulation Of The Damage Tolerance Of Thermal Spray Aluminium Sacrificial Coating In Artificial Seawater
Available for download

Simulation Of The Damage Tolerance Of Thermal Spray Aluminium Sacrificial Coating In Artificial Seawater

Product Number: 51322-17641-SG
Author: Adriana Castro Vargas, Shiladitya Paul
Publication Date: 2022
$20.00

TSA is mainly used to protect offshore steel structures, including atmospheric, splash and immersed zones. During installation or in service, the coating is likely to be damaged due to erosion, wear, scratch etc. TSA coatings protect by acting as a barrier and offering cathodic protection even if the substrate is exposed to seawater.
Picture for Statistical Analysis Of U.S. Reportable Onshore Hazardous Liquid And Natural Gas Pipeline Accidents/Incidents From January 2010 To January 2021 Caused By External Corrosion
Available for download

Statistical Analysis Of U.S. Reportable Onshore Hazardous Liquid And Natural Gas Pipeline Accidents/Incidents From January 2010 To January 2021 Caused By External Corrosion

Product Number: 51322-17661-SG
Author: Alvaro A. Rodriguez
Publication Date: 2022
$20.00

In this paper, several cases will be showcased to highlight the contributing causes and underlying mechanisms of corrosion damage of components that resulted in significant releases of hazardous substances onto operator’s property, rights-of-way, and the environment. The objectives of this paper are to understand the causes of the failures and their consequences, to identify the risk factors involved, to discuss mitigative measures after failure, and to observe trends that may indicate the need for additional preventative and mitigative actions. The over-riding goal is to provide details in areas for potential improvement in pipeline operations to reduce risk and improve integrity management.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support