AMPP Store - Products tagged with 'seawater'

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AA5083 and AA6082 Exposed to Seawater – Effect of Temperature and Potential on Corrosion Behaviour

Product Number: 51317--8942-SG

ISBN: 8942 2017 CP

Author: Roy Johnsen

Publication Date: 2017

$20.00

This paper presents and discusses results from testing of AA5083 and AA6082 in natural seawater at 100C. Samples exposed up to 6500 hours under different condition including polarization to -1500 mV vs. Ag/AgCl, - 1050 mV vs. Ag/AgCl and -700 mV Ag/AgCl.

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AMPP TM21612-2022, Liquid-Applied Coating Performance Test Methods for Offshore Structures

Product Number: AMPP TM21612-2022

Publication Date: 2022

$109.00

This AMPP standard provides a series of effective and economical test methods to evaluate the performance of candidate offshore platform new construction and maintenance coatings. The testing protocol is established to simulate the offshore environment and based on the major failure modes observed on offshore platforms. The test results will rank the candidate coating systems for end-users to select and coating manufacturers to develop reliable coating systems.

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Biocide Resistance in Microbes – An Oilfield Example

Product Number: 51323-19122-SG

Author: Nazima Habibi, Saif Uddin, Abdul Hameed Al-Hashem, Anisha Shajan, Nasreem Abdul Razzack, Farhana Zakir

Publication Date: 2023

$20.00

Biocorrosion causes huge economic losses to the oil and gas industry.

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Biocide Selection Score Card: A Numerical Approach to Product Selection

Product Number: MECC23-19919-SG

Author: Juan F. Hernández; Ridha H. Abbas; Saud A. Abudaly; Subhash Nair; Sreenivas KM

Publication Date: 2023

$20.00

Secondary oil production involves the injection of water into the reservoir, generally known as water flooding, to increase the reservoir pressure to its initial levels, to maximize the oil recovery out of the ground. The injected water flows through the formation to flush the oil from the formation into the production system. Injection systems are the portion of the field that is responsible for injecting the water into the formation. Source of water may be lake, river or sea water.

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Biocide sustainability impacts Improve seawater pipeline integrity, HSE and groundwater withdrawal avoidance

Product Number: 51323-18991-SG

Author: Juan F. Hernandez, Ridha H. Abbas, Vinicius Giorgetti, Fahad N. Abeedi

Publication Date: 2023

$20.00

Uncontrolled microbial growth in oilfield systems leads to costly problems such as fouling, plugging,
corrosion and souring. It also directly impacts the safe operation, economic performance and
environmental compliance in all areas of production, transportation, refining and distribution. To reduce
the damaging effect of microbial growth; the oil industry typically uses a variety of toxic organic and
inorganic chemicals (biocides) to treat affected systems

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Corrosion Assessment of Carbon Steel Firewater Pipes after 20+ and 40+ Years in Offshore Operation

Product Number: 51324-20898-SG

Author: Brit Kathrine Graver; Mario Søfferud; Anne Kirsti Egtvedt; Kari Lønvik

Publication Date: 2024

$40.00

Corrosion and formation of heavy deposit has been observed in firewater piping in carbon steel with stagnant seawater on several offshore platforms. This has resulted in plugging and constrictions in the pipes. Many offshore installations that have been operated for several decades in the North Sea are currently being sent for decommissioning. DNV has received pipe segment from some of these 20 to 40 years old installations for examination of the internal condition. The aim of this investigation is to gain knowledge based on operational experience in the North Sea. Two carbon steel pipes taken from the firewater ringmain on two offshore platforms from the Norwegian Continental Shelf (NCS) were examined. The objective of the investigation was to establish the internal condition, extent and nature of the deposits, determine mass of the deposit related to the observed metal loss and the dominating corrosion mechanism.

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Corrosion of Ni-Al Bronze and it’s Main Alloying Elements - Effect of Magnetic Field

Product Number: 51317--9308-SG

ISBN: 9308 2017 CP

Author: Hedda Krogstad

Publication Date: 2017

$20.00

The effect of a uniform magnetic field on the corrosion rate of anodically polarized Ni-Al Bronze in 3,5 wt.% NaCl has been investigated. It was found that the anodic current density increased when magnetic fields of 300 and 1000 mT was applied to the system.

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Corrosion Properties of Ni-Al Bronze and it’s Main Alloying Elements - Effect of pH

Product Number: 51317--9306-SG

ISBN: 9306 2017 CP

Author: Hedda Krogstad

Publication Date: 2017

$20.00

The work is mainly focused on the corrosion mechanism at low pH (>4) and the order of which the discontinuous and continuous intermetallic phases dissolve. Compositions of each phase, and the area ratio between intermetallic phases and the alpha matrix have been calculated as an average of 20 measurements.

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Corrosion Resistance Of Stainless Steel Pipelines In Seawater During Pre-Comissioning Phase

Product Number: 51323-19137-SG

Author: Charles Leballeur, Tran Quang Tung, Nicolas Larché

Publication Date: 2023

$20.00

In Oil & Gas industries, Cr-Ni-Mo stainless steels and Ni-Cr-Mo alloys with Pitting Resistance Equivalent Number (PREN) lower than 40 could be selected for Rigid Production subsea risers, pipeline, and associated structure’s piping, according to a CO2/H2S corrosion assessment that considers all steady and transient conditions foreseen to operate the reservoir.

However, there are frequently some localized corrosion concerns for these materials during the installation and pre-commissioning of the line, when the internal surface of the line could be in contact temporarily with untreated seawater. These concerns systematically lead to discard the selection of these materials and to select, for conservative purpose, UNS N06625 that is admitted immune to localized corrosion in ambient seawater in international standard and operator’s specification, whatever the outcomes of the CO2/H2 corrosion assessment.

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Corrosion Resistance Of Stainless Steels And Nickel Alloys In Natural Seawater

Product Number: 51321-16515-SG

Author: Sandra Le Manchet/ Martin Monnot/ Emilie Robin

Publication Date: 2021

$20.00

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Crevice Corrosion Of High-Grade Stainless Steels In Seawaters, Comparison Between Temperate And Tropical Locations

Product Number: 51322-17828-SG

Author: Nicolas Larché, Charles Leballeur, Dominique Thierry, Erwan Diler

Publication Date: 2022

$20.00

In natural seawater, microorganisms can fix, grow and develop on practically any surface, including stainless steels.The term biofilm is generally used for communities of microorganisms embedded in an organic polymer matrix (e.g. exopolysaccharides), produced by the microorganisms themselves) and adhering to a surface, irrespective of the environment in which they develop. Stainless steels are widely used for different applications in seawater such as the oil and gas, desalination and marine energy industries. The presence of a biofilm on passive alloys such as stainless steels or nickel-based alloys can strongly enhance the cathodic reactions, and shift their open-circuit potential (OCP) to the noble direction.

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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.

Products tagged with 'seawater'

Association for Materials Protection and Performance