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Influence of Insulation on CUI in Simulated Oil & Gas Production

Picture for Influence of Insulation on CUI in Simulated Oil & Gas Production
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Macro and microbiological growth can have significant impacts on safe and efficient operations in oil & gas applications especially in water injection and underground storage systems. Operators must provide protection against both chemical and microbial corrosion to protect assets from degradation and failure. High density polyethylene (HDPE) coatings have been shown to provide long-term corrosion protection for salt brackish and brine piping. However HDPE is susceptible to biodegradation. This study explores the development and testing of a novel HDPE coating containing a unique blend of antimicrobial powder additive engineered to protect against common bacteria and fungi in brine water. Experiments were conducted to evaluate the biological and material performance of the coatings. Results from microbiological testing showed that coatings enhanced with the material additive resisted and deactivated over 70% of bacteria present in the brine water and over 90% of the harmful fungi which causes fouling in pipelines. Testing results indicated that the additive has no significant impact on the mechanical properties or corrosion resistance of the HDPE lining. These results are significant because the additive protects against harmful microbes while maintaining properties of the HDPE system. This technology provides transformative change in prevention methods for on-shore brine pipeline applications.

Product Number: 51319-12881-SG
Author: Emily Hunt
Publication Date: 2019
$0.00
$20.00
$20.00
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Picture for Solution to Corrosion Under Insulation (CUI) with Three Layered CUI Control and CUI Warning Systems
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51314-4079-Solution to Corrosion Under Insulation (CUI) with Three Layered CUI Control and CUI Warning Systems

Product Number: 51314-4079-SG
ISBN: 4079 2014 CP
Author: Miki Funahashi
Publication Date: 2014
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Picture for THE INFLUENCE OF INSULATION MATERIALS ON CORROSION UNDER INSULATION
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THE INFLUENCE OF INSULATION MATERIALS ON CORROSION UNDER INSULATION

Product Number: MPWT19-15362
Author: John Williams, Owen Evans
Publication Date: 2019
$0.00

The designer of industrial equipment and piping has three weapons in the fight against corrosion
under insulation (CUI). The first and primary defense against CUI is a high quality, immersion
grade coating. The second is a properly designed and installed weather barrier jacketing. The third
and, arguably, least understood element is the choice of insulation material. This paper will explore
the ways in which insulation materials influence CUI behavior, presenting results from both
laboratory and field-testing on seven industrial insulation materials and one composite system.
The materials tested were calcium silicate, expanded perlite, cellular glass, mineral wool (both
regular and water-repellent grade), and two types of flexible aerogel blanket material -Pyrogel
XT and Cryogel Z
Picture for Integrity Maintaining and Cost Saving Advanced CUI Detection Technique (PEC)
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Integrity Maintaining and Cost Saving Advanced CUI Detection Technique (PEC)

Product Number: MPWT19-14242
Author: Amro Hassanein, Ahmed Elsharkawi
Publication Date: 2019
$0.00

Corrosion under insulation (CUI) is a major problem for petroleum and petrochemical process industries that affects the plant mechanical integrity and attacks assets. CUI can result in sudden and hazardous leaks (safety concern), and plant shutdowns with high losses of production (economical concern).
Traditional detecting methods of CUI to cut a window in thermal insulation used to inspect visually, to measure the thickness, and then return thermal insulation back, giving high chance for water and moisture ingress, accelerating CUI, moreover big amount of scaffolding erection along with thermal insulation removal required.
SHARQ (Eastern Petrochemical Company, one of SABIC companies) is pioneer to study CUI, evaluating many Non–Destructive techniques has proven Pulsed Eddy Current (PEC) as the most effective technique in terms of integrity and cost optimization.
Considering all available techniques, all aspects studied, such as range of applications, features, and limitations, it is concluded and verified to meet our inspection plan strategy needs.
PEC does not require thermal insulation removal; optimize scaffolding erection, has a wide range of applications related to thickness, and temperature. PEC approved by international codes and standards (API) to meet RBI Meridium software requirements.
The validation study results show cost savings of more than 50% compared to traditional thickness measurement methodology, moreover it reduces EHSS (Environment, Health, Safety, and Security) negative impact reduces the probability of safety incidents due to reducing labor, man-hours, and eliminating many associated activities with potential hazard and risk.
PEC has high productivity, easily operated, and provides comprehensive and professional inspection report
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