AMPP Store - Products tagged with 'offshore'

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Determination of the Corrosion Rate of Thermally Spayed Aluminum (TSA) in Simulated Marine Service

Product Number: 51320-14650-SG

Author: Shiladitya Paul, Dave Harvey

Publication Date: 2020

$20.00

Operators desire extended life of offshore facilities, structures and components to improve affordability, and to increase their availability in later years of operation. Whilst maintenance and replacement of topside facilities is possible, critical to this objective is the design and construction of supporting infrastructure and facilities capable of withstanding splash and tidal zone corrosion for the lifetime of the structure with minimum maintenance.

Thermally sprayed aluminum (TSA) is increasingly applied in marine environments as a corrosion mitigation solution but few studies provide quantitative corrosion rate data, from which a lifetime of little or no maintenance can be predicted. A technology review was undertaken to establish current working practice and experience related to the mitigation of splash and tidal zone corrosion. A number of coating systems (thermally sprayed, organic paints and duplex combined thermal spray and paint), currently used in the splash and tidal zone of offshore structures, were identified. Thermal spray coatings with and without aluminum-silicone sealant were prepared and tested in alternate immersion using linear polarisation resistance (LPR) methods. The data were analysed and corrosion rates values were obtained.

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Do's and Don'ts of Greenfield Pressure Systems Integrity Program Development

Product Number: 51324-20861-SG

Author: Adam Haavisto

Publication Date: 2024

$40.00

Greenfield pressure system integrity program development provides unique opportunities and challenges for an asset's inspection program. As new projects become more complex and a global effort, a well-tuned integrity program provides significant risk reduction and quality checks against the design. This paper is intended to help managers and asset owners optimize their greenfield integrity program to identify new risks while providing cost effective programs. The paper will discuss the optimal time to start their program development, who should be involved, how you can integrate design and operation teams, and be provide additional value-added reasons to have an integrity program in place before commissioning.

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Effect of Heat Treatment and Manufacturing Method on the Susceptibility to Hydrogen Induced Stress Cracking of UNS N06625

Product Number: 51324-20899-SG

Author: Eivind Bruun Thorstensen; Atle Helge Qvale; Vebjørn Andresen ; Roy Johnsen; Paal Bratland

Publication Date: 2024

$40.00

This paper presents results obtained from examining the effect of heat treatment and production method on the hydrogen induced stress cracking (HISC) susceptibility of UNS N06625 (Alloy 625). Five different versions of Alloy 625 were examined: Hot forged material heat treated at 920 °C, 1010 °C and 1100 °C respectively, material produced by hot isostatic pressing (HIP) and material that has been solution annealed and strain hardened (cold worked) at a temperature below secondary phase formation. The different versions of Alloy 625 were initially characterized by identifying the critical pitting temperature (CPT) by use of a modified ASTM G48 Method C test. Resistance to Hydrogen Embrittlement (HE) has been examined by use of stepwise loading of tensile specimens in a hydrogen charging environment in CortestTM proof rings, followed by fractography characterization and microstructural examination by use of Optical Light Microscope (OLM) and Scanning Electron Microscope (SEM). The hot forged and the HIP’ed versions of Alloy 625 that subsequently were heat treated, were found to be susceptible to HISC. The evaluation was based on a decrease in strength and ductility, as well as brittle fracture surfaces and secondary cracking on the samples’ outer surface. Among the hot forged and heat-treated versions, the samples heat treated at 1010°C were found to be the most susceptible to HISC, while (solution) heat treatment at 1100°C resulted in the lowest HISC susceptibility amongst the hot forged and heat-treated qualities. The solution annealed (1150 °C) and cold worked version showed a higher resistance to HISC, as no reduction in fracture strength, nor any secondary cracking were observed. The amount of grain boundary precipitations was found to be the main factor influencing the HISC susceptibility, where an increased amount of grain boundary precipitations led to higher susceptibility. The effect of grain size on the HISC susceptibility of samples charged with hydrogen were also considered, and the results indicate that larger grains have a beneficial effect on the ductility.

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From galvanic anodes to ICCP system for offshore jackets revamping

Product Number: 51323-19177-SG

Author: Eric Agel, Mamady Obame-Diakite, Thiago Mesquita, Christian Yogoulou-Joly

Publication Date: 2023

$20.00

Sacrificial or Galvanic Anodes Cathodic Protection System is an excellent anticorrosion solution which offers to immerse structures a long-term protection. In TotalEnergies and in the Oil & Gas Industry in general, such system provides confidence, efficiency together with little maintenance over years which is a very good point for the subsea integrity of jackets (or pipelines) when knowing all other operational constraints or corrosion issues that can be met at the surface level.

Thus, from TotalEnergies experience, it has been established that as long as:1/ the CP system is correctly designed (taking into account the applied - or not - painting on the jacket) following the recognized international codes and standards (DNV RP-B-401, ISO 15589-2.

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Glassflake Epoxy - An excellent System for Offshore Platforms Splash Zone

Product Number: 41205-179-SG

Author: A.S.Khanna

Publication Date: 2005

$20.00

Due to very severe conditions at offshore, conventional coatings do not work as they require multicoats to acquire high thickness and their curing times are rather high, giving chances for the contamination by severe environment (high RH and salt) in the intermediate layers. Thus, modern coatings which can give larger thickness in just one single coat and cure in a few minutes time are required for critical applications such as splash zone which is marred by continuous dry and wet spell.

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Laboratory Study of Internal Corrosion and Cathodic Protection Concerns Related to Offshore Monopile Structures

Product Number: 51323-18894-SG

Author: Suresh Divi, Adam Rowe, Dan Efird

Publication Date: 2023

$20.00

There have been several studies and publications over the past decade that clearly illustrate how initial assumptions about monopile interiors being perfectly sealed compartments were not correct in practice. Oxygen ingress through various points in the monopile contributes to persistent internal corrosion, and planned inspections are also opportunities to introduce fresh oxygen into the monopile. The replenishment of oxygen has been found to continue the corrosion reaction between the monopile wall and entrapped water.

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Lessons Learned from Offshore Coating Programs

Product Number: 51317--9226-SG

ISBN: 9226 2017 CP

Author: Michael Yee

Publication Date: 2017

$20.00

This paper will cover the background of increasing regulations and audits, the reasons why many coatings and fireproofing systems prematurely fail, and also the solutions that may help address these issues that many operators face today.

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NACE Publication 7L198-2009-SG, Design of Galvanic Anode Cathodic Protection Systems for Offshore Structures

Product Number: 24196-SG

Publication Date: 2009

$109.00

A new design approach allows more precise design of cathodic protection systems, particularly in areas such as deep water or new geographic areas.

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New Ultra-Durable Anti-Corrosion Coating System For Steel Infrastructure in Extreme Environments

Product Number: 51323-19357-SG

Author: Dr. Wei Wang, Anna Sanchez-Fischer, Todd Hawkins

Publication Date: 2023

$20.00

Corrosion’s destructive effects on critical steel infrastructure have costly economic and security
implications for the United States. According to a NACE International report from 2001, the annual
corrosion costs in the United States industrial sector were $47.9 billion per year, with the largest portion
stemming from the maintenance of critical utilities such as gas, water, electric, and telecommunications. Catastrophic failure due to corrosion jeopardizes the resilience of critical utilities, risking the interruption of service to millions and creates weak-points the nation’s homeland security.

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Reducing Embodied Carbon by Using Fibre Reinforced Polymers (FRP) Rather than Steel

Product Number: MECC23-20045-SG

Author: Nik Lye; Blake Herbert; Rocky Friedrich; Simon Eves; Allen Chiu

Publication Date: 2023

$20.00

Climate change and global warming due to human-generated greenhouse gases are potentially the most prominent issues facing the political and economic world in recent times. “Human activities are estimated to have caused approximately 1.0°C of global warming above pre-industrial levels, with a likely range of 0.8°C to 1.2°C. Global warming is likely to reach 1.5°C between 2030 and 2052 if it continues to increase at the current rate.”

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Retrofit Strategy Using Aluminium Anodes for the Internal Sections of Windturbine Monopiles

Product Number: 51317--8955-SG

ISBN: 8955 2017 CP

Author: Alex Delwiche

Publication Date: 2017

$20.00

This paper discusses the corrosion mitigation strategy for protecting the submerged sections of a monopile wind turbine structure off the east coast of England in UK waters.

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RP0286-1986, The Electrical Isolation of Cathodically Protected Pipelines

Product Number: 53060-HD1986

ISBN: 1-57590-041-6

Author: NACE/ICST

Publication Date: 1986

$179.00

This standard was prepared to supplement NACE Standards RP-01-69, RP-06-75 and RP-01-77. Full details are provided of the requirements to ensure adequate isolation of cathodically protected pipelines. Historical Document 1986

Products tagged with 'offshore'

Association for Materials Protection and Performance