Menu
Search
Filters
Close
Menu

SCC Of Tensile Wires At High CO2 Partial Pressure In Simulated Annulus Environments Of Flexible Pipes

Picture for SCC Of Tensile Wires At High CO2 Partial Pressure In Simulated Annulus Environments Of Flexible Pipes
Available for download

Unbonded flexible pipes used for transporting process fluids in offshore oil and gas production systems have a complex structure, with alternate polymer and metallic layers. Tensile armors are metallic layers constructed by the helical wrapping of high strength carbon steel wires, and they are responsible for the integrity of the pipe. These armors provide axial strength and torsion resistance to the pipe so that it can sustain its own weight and resist to stresses associated to environmental conditions and vessel motion.

Product Number: 51322-17898-SG
Author: Pedro Netto da Silva, Gaute Svenningsen, Arne Dugstad, José Antônio da Cunha Ponciano Gomes
Publication Date: 2022
Industries: Cathodic Protection , Corrosion Monitoring and Control , Coatings and Linings , Coatings
$0.00
$20.00
$20.00

The CO2-SCC susceptibility of tensile wires of flexible pipes was investigated. Wire specimens were tensioned in four-point bending jigs and exposed to different simulated annulus environments at high CO2 partial pressure. Unloaded specimens were exposed to the same test environments and corrosion rates were calculated from their mass loss. Artificial sea water solutions at different temperatures were used as electrolyte. Some specimens were pre-corroded in aerated artificial sea water before exposure to the CO2 environments. The corroded surface of the specimens after removal of corrosion products was analyzed using scanning electron microscopy. Cracks associated with localized attacks were observed in the tensioned specimens exposed to some of the simulated conditions. Temperature and pre-corrosion in aerated sea water influenced cracking susceptibility significantly.

The CO2-SCC susceptibility of tensile wires of flexible pipes was investigated. Wire specimens were tensioned in four-point bending jigs and exposed to different simulated annulus environments at high CO2 partial pressure. Unloaded specimens were exposed to the same test environments and corrosion rates were calculated from their mass loss. Artificial sea water solutions at different temperatures were used as electrolyte. Some specimens were pre-corroded in aerated artificial sea water before exposure to the CO2 environments. The corroded surface of the specimens after removal of corrosion products was analyzed using scanning electron microscopy. Cracks associated with localized attacks were observed in the tensioned specimens exposed to some of the simulated conditions. Temperature and pre-corrosion in aerated sea water influenced cracking susceptibility significantly.

Product tags
Also Purchased
Picture for Salt Deposition On F-5 Aircraft In Various Service Environments
Available for download

Salt Deposition On F-5 Aircraft In Various Service Environments

Product Number: 51322-17799-SG
Author: Christine Sanders, Christina Stewart
Publication Date: 2022
$20.00

Fighter Squadron Composite One One One (VFC-111) is a US Navy adversary squadron based out of
Naval Air Station (NAS) Key West, Florida. VFC-111 operates F-5 Tiger-II tactical fighter jets as part of their dissimilar air combat training program provided to fighter squadrons within the Navy, Marine Corps, Air Force, Air Force Reserve, and Air National Guard.
Picture for Robust Non-Phosphorus Cooling Water Treatment Program That Reduces The Biological Control Challenge - A Case Study
Available for download

Robust Non-Phosphorus Cooling Water Treatment Program That Reduces The Biological Control Challenge - A Case Study

Product Number: 51322-17626-SG
Author: Bingzhi Chen, Yikun Guo, Xiao Zhang, Ben Brock, Jessica Grailer
Publication Date: 2022
$20.00

Cooling water systems are commonly used to cool a process, either steam, gas or liquid, through heat exchangers or condensers in various plants. The heat exchangers or condensers can be corroded easily or have scale and biofilm growth due to the poor water treatment program. The corrosion, scale, and biofilm growth on heat exchangers can lead to significant reduction in heat exchanger efficiency and lifetime. The repair expense or loss of production often costs plants a few hundred thousand or millions of dollars per day for heavy industries, such as chemical and power plants, refineries, and steel mills. Thus, cooling water treatment is critical to maintain the integrity and efficiency of heat exchangers.
Picture for Selection, Screening and Field Trial of Calcium Hypochlorite to reduce bacteria population in freshwater storage tanks in Williston, North Dakota, USA
Available for download

Selection, Screening and Field Trial of Calcium Hypochlorite to reduce bacteria population in freshwater storage tanks in Williston, North Dakota, USA

Product Number: 51322-17645-SG
Author: James R Fajt, Stephanie Iwuala, Alyn Jenkins, Jarrod Hastie
Publication Date: 2022
$20.00

This study describes an effort to find a method to control bacteria in 130 remote freshwater fiber glass storge tanks with an effective low-cost, convenient treatment method. Freshwater, in this application, is being used to control halite scale formed in the production from unconventional oil wells in the Williston, North Dakota, USA area. The water is sourced from local freshwater rivers and trucked to location and stored in 400 barrel (bbl) freshwater tanks. The water stored in the tanks is injected continuously, and the tanks are refilled on a variable schedule.
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