AMPP Store - Products tagged with 'corrosion inhibitor'

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Redefining Conventional, with Biobased Alternatives

Product Number: 51324-20797-SG

Author: Luke Stone; Lisa Marston

Publication Date: 2024

$40.00

Corrosion mitigation is fundamentally a practice of material stewardship, it prolongs service life and safety of both equipment and infrastructure. Conventional corrosion mitigation techniques often diminish these benefits by sourcing and employing harmful chemicals. However, there are alternatives; green chemistries are being utilized in corrosion mitigation techniques, from rust preventatives made with renewable feedstocks and those certified Biobased by the USDA BioPreferred Program, to environmentally friendly disposal pathways. With thoughtful designs, Circular Economy principles can be incorporated into the field of corrosion management. In this paper, a range of corrosion management products, and case histories of their successful adoption will be presented. Some highlights include: The replacement of a solvent-based rust preventative (RP) with a biobased and water-based RP, the use of a canola-oil based rust preventative as a long-term protection solution at a major automotive firm, as well as the use of a biobased vapor-phase corrosion preventative which replaces traditional petroleum-based foam.

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Residual Analysis Assay For Thiol-Based VCI Quantification In Top-Of-Line Corrosion Environments

Product Number: 51322-17918-SG

Author: Mariana Costa Folena, José Antônio da Cunha Ponciano Gomes, Hanan Alshareef Farhat, Iain Manfield, Joshua Owen, Anne Neville, Richard Barker

Publication Date: 2022

$20.00

Top of line corrosion (TLC) is a degradation mechanism predominantly encountered in the oil and gas industry. Initiation of TLC requires a stratified flow regime with wet gas transportation and the existence of a significant temperature gradient between the hot fluid inside the pipeline and the colder external environment.1,2,3 This temperature difference results in the condensation of water vapor, present in the gas phase, onto the cooler, upper internal section of the pipeline. The condensed water can be particularly aggressive as it lacks dissolved salts (e.g. bicarbonates), some of which are able to buffer the bulk electrolyte, increasing the pH and suppressing corrosivity.4,5,6 The absence of such salts typically results in a very low pH condensate (<pH 4), often containing dissolved acidic gases, such as carbon dioxide (CO2) and hydrogen sulfide (H2S), and also acetic acid (HAc), which can cause severe degradation, particularly in the form of localized corrosion.5

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Shortcomings regarding the Testing of Oil and Gas Corrosion Inhibitors

Product Number: 51324-20823-SG

Author: Alyn Jenkins; Khoa Ky; David Orta

Publication Date: 2024

$40.00

Laboratory selection of oilfield corrosion inhibitors used to mitigate carbon dioxide (CO2) and hydrogen sulfide (H2S) corrosion is an essential aspect of every asset integrity program implemented in oil and gas fields. However, many factors increase the complexity of designing a corrosion inhibitor laboratory test program that will deliver reliable results. Several of these factors relate to the challenges of accurately replicating field conditions in the laboratory, including using inhibitor-free crude oil, reproducing pipeline flow regimes and wall shear stress, duplicating the specific form of corrosion that occurs in the field, and simulating inhibitor deliverability and transport in multiphase pipelines. Other elements that increase the difficulty relate to requirements for environmentally acceptable chemistries in certain geographies and the variety of corrosion performance tests and methodologies mandated by different oil companies. After the laboratory testing is complete and a corrosion inhibitor has been selected for field application, optimization of the product in the field should be performed but this is frequently overlooked. If corrosion inhibitor treat rate is not optimized in the field, it can result in overdosing (causing stabilization of emulsions and foaming) or underdosing (which can result in high corrosion rates). This paper discusses the challenges and inconsistencies associated with selecting corrosion inhibitors for use in oil and gas fields. Importantly, this paper discusses how these challenges can be resolved to ensure that the selection of oil and gas corrosion inhibitors follows a reliable process.

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Specialty Corrosion Inhibitor Successfully Inhibits Offshore Corrosive Mercury-Containing Gas Stream Offering

Product Number: MECC23-19889-SG

Author: Mohamed Abou Zour; Dumrong Chuachawna

Publication Date: 2023

$20.00

In oil and gas production, corrosion is a major cause of failures. These failures result in significant environmental contaminants, safety problems, increase in the high operating costs and decrease in the production rates. Extensive literature is available about various corrosion drivers and their mechanisms, helping operators to avoid or mitigate these catastrophic failures.

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Surfactant Corrosion Inhibitor Adsorption and Desorption Kinetics in Aqueous CO2-Containing Environments

Product Number: 51324-20915-SG

Author: Ryan Abou-Shakra; Joshua Owen; Richard C. Woollam; Richard Barker; William H. Durnie

Publication Date: 2024

$40.00

Corrosion inhibitors are commonly employed to internally protect carbon steel pipelines in aqueous carbon dioxide (CO2)-saturated environments, such as those encountered in oil and gas production and geothermal operation. However, unexpected events can occur that lead to periods where corrosion inhibitor addition ceases completely, or the quantity of inhibitor added falls short of the typical concentration required for the desired level of corrosion mitigation. In these instances of interruption, there is a limited understanding of the inhibitor surface residence time, or ‘persistency’, and the associated effects on the corrosion rate of carbon steel. This study examines the influence of the substrate surface condition and inhibitor concentration on the persistency of benzyldimethyltetradecylammonium chloride (BAC-C14) corrosion inhibitor in a CO2-saturated 1 wt.% NaCl brine at 30°C. An electrochemical rotating cylinder electrode (operating at 1000 rpm) coupled with a dilution process was used to simulate persistency. Experimental results using carbon steel at 0.75x and 1x of the surfactant critical micelle concentration (CMC) showed that inhibitor efficiency and persistency improved markedly at the higher concentration. Supplementary experiments using pure iron illustrated an even stronger interaction between inhibitor and substrate, resulting in BAC-C14 failing to desorb after three days of exposure to uninhibited brine. A first-order kinetic model was assessed in its ability to predict the desorption response after dilution, based on fitting to the inhibitor adsorption response. Whilst a strong agreement was obtained between the theoretical desorption profile and experimental desorption data at 0.75xCMC on carbon steel, the model failed to predict the responses at CMC, as well as those on the pure iron substrate, necessitating consideration of other models.

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Tailoring Chemicals for Continuous Injection Downhole via Capillary Line and “Sensitive” Jewelry

Product Number: 51317--9108-SG

ISBN: 9108 2017 CP

Author: Marko Stipanicev

Publication Date: 2017

$20.00

Downhole injection of corrosion inhibitors in more mature fields is required to manage scale formation and corrosion within the wellbore completion components. Discussed herein are the physical properties of chemicals injected via capillaries should possess.

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Technical Paper: Petroleum-Based Corrosion Inhibitor

Product Number: 41206-268-SG

Author: James R. Mott

Publication Date: 2006

$20.00

The effects of corrosion are wide-spread and widely known. From construction to transportation and everything in between corrosion is a result of environmental effects on the metals we use to build. Corrosion may be controlled, however, through the use of inhibitors as an on-going treatment in order to effectively stall the act of corrosion.

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The Effect Of Sulfur Components Of Corrosion Inhibitors On Chemical Qualification

Product Number: 51322-17801-SG

Author: Hunter Thomson, Rodney Madjitey, Ian Carpenter, Caroline Simpson, Gordon Graham, Robert Stalker

Publication Date: 2022

$20.00

Maintaining the integrity of oilfield equipment is essential to its safe operation and to maximize the efficiency of production. The integrity of oilfield equipment can rely on material selection and control of conditions, however, it is commonly maintained by the applications of chemical corrosion inhibitors (CI). Prior to use, these chemicals must be shown to perform as desired under the field conditions in question. To achieve this, chemicals are often evaluated using robust laboratory-based screening studies to identify potential candidates.

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The Performance Of HPHT Corrosion Inhibitor At Offshore Downhole Sour Conditions

Product Number: 51322-17752-SG

Author: Youngil Choi, Youngsun Yim, Bang Cha Rang Song, George Economopoulos

Publication Date: 2022

$20.00

As traditional reserves deplete onshore and offshore, the oil industry is moving into increasingly deeper waters and harsh environments in the pursuit of hydrocarbons. As the industry drills deeper, the challenges that face infrastructure increase markedly with the longstanding issues of corrosion. One of the major challenges to corrosion management is the extreme pressure and temperature.

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The Performance Study of High-Temperature, High-Pressure (HTHP) Corrosion Inhibitors at Sour Conditions

Product Number: MECC23-20051-SG

Author: Heonyeong Song; Seonkyun Jeong; Bang Cha Rang Song; Cheolho Kang

Publication Date: 2023

$20.00

The oil and gas industry is currently operating numerous fields that contain high concentrations of CO2 and H2S at elevated temperatures. Under such conditions, internal corrosion control has emerged as a significant challenge, leading to severe material failures in production wells and posing a substantial threat to oil and gas infrastructure.

Internal corrosion of pipelines represents a critical risk during the initial stages of production, with a reported occurrence of above 9,000 failures between 1990 and 2012.

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The Performance Tests of HPHT Corrosion Inhibitor at Onshore Downhole Sour Conditions

Product Number: 51323-19242-SG

Author: Heonyeong Song, Kwanghyung Lee, Bang Cha Rang Song, Junpeng Xue

Publication Date: 2023

$20.00

Nowadays, oil and gas fields containing a high concentration of CO2 and H2S at high temperatures are being operated in many areas. Here, internal corrosion control under these conditions has become one of the significant challenges in oil and gas production wells and a major cause of severe corrosion–related material failure in the industry.

Internal corrosion of the pipelines turns out to be a critical threat to the initial stage of production.

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Understanding of Corrosion Inhibitor Behavior through Interaction between Stearic Acid and Alkane

Product Number: 51324-20900-SG

Author: Susumu Hirano; Tatsuya Sei; Midori Kawasaki; Atsushi Kobayashi

Publication Date: 2024

$40.00

A principle of corrosion inhibitor behavior in an oil pipeline was studied with stearic acid and alkane. The role of corrosion inhibitor is explained by the function of surfactant, i.e., partition from oil to water, dispersion in water and adsorption on metal surface. Stearic acid alkane solution was treated as a single component model inhibitor. The performance of the model inhibitor was evaluated by measuring corrosion rates of carbon steel in a metal-oil-water system. Interfacial tension and total organic carbon were measured to investigate the dispersion of the model inhibitor. The corrosion rate was influenced by the carbon chain length of alkane, flow speed and pH of the test solution. The carbon chain length and flow rate seemed to affect the dispersion of the model inhibitor in the aqueous phase in association with the interfacial tension between alkane and water. Alkane dissociation at pH 5.5 seemed to accelerate the adsorption of the model inhibitor.

Products tagged with 'corrosion inhibitor'

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