AMPP Store - Products tagged with 'top of line corrosion'

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04376 A Review of the Effect of Organic Acids on CO2 Corrosion

Product Number: 51300-04376-SG

ISBN: 04376 2004 CP

Author: James A. Dougherty, Consultant

Publication Date: 2004

$20.00

This paper reviews the effect of low molecular weight organic acids ( acetic, propionic, butyric) on corrosion rates in the presence of CO2. The effect of the mineral content of the produced water is also discussed. Laboratory methods for determining the concentration of low concentrations of organic acids are discussed. Laboratory and field data are presented.

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51317--9713-Assessing Corrosion Risk and Selection of Appropriate Testing Programs for Gas and Gas-Condensate Pipelines

Product Number: 51317--9713-SG

ISBN: 9713 2017 CP

Author: Caroline Simpson

Publication Date: 2017

$20.00

There is uncertainty about the best way to determine the corrosion risk for gas-condensate pipelines, and use of chemical inhibitors as mitigation strategy. We present considerations when devising corrosion mitigation and inhibition strategies, as well as a recommended test for inhibitor qualification.

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51318-10964-Sour TLC

Product Number: 51318-10964-SG

Author: Gaute Svenningsen / Jon Kvarekvål

Publication Date: 2018

$20.00

In this work, sour TLC was systematically studied in autoclaves with a special holder that exposed one side of the TLC coupon while the back side was exposed to cooling liquid.

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51318-11493-Investigation of the applicability of droplet transport for TLC mitigation

Product Number: 51318-11493-SG

Author: Nicolas Jauseau / Fernando Farelas / Marc Singer / Srdjan Nesic

Publication Date: 2018

$20.00

This work presents a combined modeling and experimental methodology to determine the onset of droplet entrainment from the bottom and deposition at the top of the line.

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Prediction And Mitigation Of Top Of Line Corrosion Risk Due To Damages In External Pipeline Coating

Product Number: 51321-16789-SG

Author: Marc Singer, Nick Bardsley, Julie Morgan, Stuart Kegg, Adam Darwin, Peter Cossins, Anthony Kwong, Jason Biddlecombe, Jo Yetman, Joe Bullen

Publication Date: 2021

$20.00

A visual inspection of a subsea field development, transporting wet gas, containing approximately 1.5 to 2 mol% of CO2 to shore, was conducted via ROV (remotely operated vehicle). The pipeline system is largely carbon steel with only short lengths of CRA (corrosion resistant alloy) piping from the wellhead to the production/pigging manifold. Downstream of the pigging manifold the system has 20” carbon steel spools leading to the FTA (flowline termination assembly) and then 20” carbon steel flowlines to the riser platform.

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Role Of Acetic Acid On The Kinetics And Mechanism Of Carbon Steel Dissolution Under CO2 Top Of Line Corrosion

Product Number: 51322-17818-SG

Author: Mariana Costa Folena, José Antônio da Cunha Ponciano Gomes, Frederick Pessu, Anne Neville, Richard Barker

Publication Date: 2022

$20.00

Top of line corrosion (TLC) is a specific corrosion mechanism observed in the oil and gas industry. This phenomena occurs under stratified or wet-gas flow regimes when the upper internal pipeline walls are sufficiently cooled (by heat transfer to the surrounding outer environment), promoting local condensation of water vapor. Carbon dioxide (CO₂) and organic acids dissolving into the condensed water generate a change in the solution chemistry, ultimately influencing the corrosion kinetics of the contacting carbon steel.

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Test Equipment for Sour TLC Testing

Product Number: 51317--9337-SG

ISBN: 9337 2017 CP

Author: Gaute Svenningsen

Publication Date: 2017

$20.00

In this work, a specially made sample holder that can be fitted inside regular autoclaves was used for simulating sour TLC in the presence of methanol. The experiments showed that for 10 bar H2S + 10 bar CO2, the TLC mass loss rate was 0.2-0.3 mm/y of general corrosion without localized attacks.

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Top of Line Corrosion in Multiphase Gas Line Operational Feedbacks

Product Number: 51323-19486-SG

Author: Suryani, Rudi Rinaldi, Albertino Prabowo, Farih Mitraningsih, Aji Samiaji

Publication Date: 2023

$20.00

The first case of top of line corrosion (TLC) in Tunu gas field was reported by Gunaltun et al in 19991. Inline
inspection (ILI) of two carbon steel pipelines distributing multiphase effluent, showed up to 50% metal
loss at 11.00 – 01.00 o’clock at several sections. Visual examination of a cut section showed that the top
of line was covered with iron carbonate layer with deep pits, and severe metal loss occurred on large
surfaces at these area.

Products tagged with 'top of line corrosion'

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