AMPP Store - Products tagged with 'sweet corrosion'

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02041 CORROSION RESISTANCE OF LOW Cr BEARING STEEL IN SWEET AND SOUR ENVIRONMENTS

Product Number: 51300-02041-SG

ISBN: 02041 2002 CP

Author: Hideki Takabe and Masakatsu Ueda

Publication Date: 2002

$20.00

Low Cr (3 to 5%) bearing steels have been developed and used in CO2 environment as materials to meet "Fitness for Purpose". However, the SSC and SCC resistance of low Cr bearing steel have not been clarified. This paper presents the effect of carbon content, microstructure, and tempering temperature on the SSC and SCC resistance as well as CO2 corrosion resistance of low Cr steel (3%Cr steel).

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10332 Sour and Sweet Corrosion of Carbon Steel: General or Pitting or Localized or All of the Above?

Product Number: 51300-10332-SG

ISBN: 10332 2010 CP

Author: Sankara Papavinasam, Alex Doiron, Jian Li, Dong-Yeob Park, and Pei Liu

Publication Date: 2010

$20.00

Analysis of corrosion of carbon steel in sour and sweet environments. Non-classical nature of localized pitting corrosion of carbon steel in sour and sweet environments explained. Description of a model to predict internal pitting corrosion of carbon steel under sour and sweet environments,

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51316-7184-Corrosivity of Produced and Make-up Water in Oil Sands Thermal Water Treatment Systems

Product Number: 51316-7184-SG

ISBN: 7184 2016 CP

Author: Tesfaalem Gebremedhin Haile

Publication Date: 2016

$20.00

The current paper presents a study on corrosivity of produced water and make-up water on UNS G10180 carbon steel in simulated in-situ thermal operations.

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A Mechanistic Study of Corrosion Inhibitor Partitioning and Performance in Sweet Corrosion Environments

Product Number: 51317--9399-SG

ISBN: 9399 2017 CP

Author: Fang Cao

Publication Date: 2017

$20.00

Nitrogen-based model CI compounds with different functional groups and sulfur containing synergist molecules were selected for mechanistic study. The oil-water partitioning behavior and corrosion performance of these model compounds were investigated and correlated to their chemical structures in a variety of sweet corrosion environments.

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Corrosion Inhibitor Encapsulation For Enhanced Chemical Efficiency And Performance

Product Number: 51322-17548-SG

Author: Fang Cao, James Oxley, Yao Xiong, Satish Bodige, Dennis Schmatz

Publication Date: 2022

$20.00

Corrosion of pipelines made of carbon steel and exposed to wet hydrocarbons containing CO₂ and H₂S is a common but serious problem encountered in petroleum industry and its occurrence causes enormousexpense due to production downtime, accidental injuries, and replacement costs. Control and prevent corrosion using chemical treatment (e.g. corrosion inhibitor injection) is one of the most cost-effective solutions and commonly practiced methods to prevent corrosion failures in pipelines in oil and gas industry. Generally speaking, the active corrosion inhibitor (CI) components in commercial CI packages are usually organic, nitrogen-based surfactants such as amines, imidazoline and its derivatives. Due to the amphiphilic nature of surfactants, a good fraction of the injected CI will inevitably go into the oil phase through partitioning and to the oil/water interface.

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Corrosion Performance of L80-1Cr and L80-3Cr OCTG in High CO2 at Elevated Temperatures

Product Number: 51313-02753-SG

ISBN: 02753 2013 CP

Author: Amit Kumar

Publication Date: 2013

$20.00

Sweet corrosion of Oil Country Tubular Goods (OCTG) is a major concern in the oil and gas industry. This paper will present the experimental results and discuss the effects of temperature and Chromium content in OCTG on corrosion rate.

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Effect of H2S Concentration on the Passivation Behavior of Modified 13 Cr Martensitic Stainless Steels

Product Number: 51324-21009-SG

Author: Alan Martinez; Deeparekha Narayanan; Raymundo Case; Homero Castaneda; Ahmed Baghat

Publication Date: 2024

$40.00

Modified 13 Cr Martensitic Stainless steels (UNS S41426) are used extensively in the oil and gas industry as wellbore components in sweet and moderately sour service applications. The synergistic effects between H2S activity and temperature have a detrimental effect on the passive film stability. Electrochemical tests were performed using a 1L autoclave holding 35 bar of CO2 gas and varying H2S activity at 25°C and 150°C at a pH of 3.5. The pitting susceptibility is enhanced in regions along Ti(C,N) inclusions and regions where defective sulfide films generate local galvanic cells around regions with limited protection along the steel surface further driving the pitting process. Both DC and AC electrochemical techniques were correlated with microstructural characterization to observe the extent of passivation on the surface. Some service limits under acidic conditions are proposed based on the electrochemical results.

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Highlighting Challenges with Corrosion Inhibitor Qualification Under High H2S, Sour Conditions

Product Number: 51323-19243-SG

Author: Hunter Thomson, Rodney Madjitey, Caroline Simpson, Dario M. Frigo, and Gordon Graham

Publication Date: 2023

$20.00

Corrosion and corrosion inhibitor qualification testing has been the subject of many publications over the years, with various guidelines and in-house protocols produced. This has led to a rather large set of test approaches for the qualification of corrosion inhibitors (CIs) for application in oil and gas production facilities.

For challenging conditions, including severe downhole conditions, final testing is often performed via specialized autoclaves or high-pressure flow loops to allow tests to be conducted under conditions as close to those pertaining in the field: T, P, pCO2 and pH2S (or more realistically, fugacity of CO2 and H2S), and as close as can be achieved to the field hydrodynamics.

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Influence of High CO2 Partial Pressure on Top-of-the-Line Corrosion

Product Number: 51324-21220-SG

Author: Maryam Eslami; Bernardo Augusto Farah Santos; David Young; Sondre Gjertsen; Marc Singer

Publication Date: 2024

$40.00

Top-of-the-line corrosion (TLC) is an important type of material degradation that occurs due to the heat exchange between the pipeline and its surroundings, which results in water condensation on the internal surface of the pipe. This type of corrosion is specific to wet gas pipelines with stratified flow regimes. In this research, the effect of high CO2 partial pressure (pCO2) on TLC rate and mechanism was studied. The experiments were conducted in a high-pressure TLC autoclave with pCO2 ranging from 20 to 100 bar, solution temperatures of 30 and 50 °C, and different water condensation conditions (0.001-0.1 ml/m2.s). The experimental conditions covered environments where CO2 was either gaseous or supercritical. The results revealed that uniform and localized TLC rates increase with water condensation rate and solution temperature. However, as long as CO2 remained gaseous, pCO2 showed a negligible influence on both uniform and localized TLC rates. At a high CO2 content, the formation of a protective FeCO3 layer decreased the TLC rate, especially at lower water condensation rates. Nevertheless, the risk of localized corrosion at high and medium water condensation rates remained an issue. In the supercritical CO2 environment (pCO2 of 100 bar and solution temperature of 50 °C), the difference in temperature between the CO2 dense phase and the specimens caused water drop out and corrosion. In this environment, the high pCO2 and low pH of the dropped-out water led to high uniform and localized corrosion rates. However, under this condition, the difference in corrosion rates of specimens with different cooling rates was negligible due to their similar surface temperature.

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Oligomeric Type Inhibitors Meeting a BroadSpectrum of Oilfield Corrosion Challenges

Product Number: MECC23-19970-SG

Author: Per-Erik Hellberg

Publication Date: 2023

$20.00

The standard type of chemicals long used as oilfield corrosion inhibitors are so-called filmforming molecules carrying a positive net charge. More specifically, these additives belong to e.g. the classes fatty amines, alkoxylated fatty amines, amidoamines, imidazolines, pyridinium quats, and quarternary ammonium compounds like alkyl benzyl quats. Anionic molecules, predominantly phosphate esters, may sometimes also be used as stand-alone inhibitors or as enhancers in formulations with a base inhibitor of the abovementioned type.

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Performance of API 5L X65 in 138 MPa Supercritical CO2

Product Number: 51323-18863-SG

Author: Shiladitya Paul

Publication Date: 2023

$20.00

Carbon steels and low alloy steels are the workhorse of several industries where properties such as strength, fracture toughness and weldability play a key role. In addition to these properties, carbon steels are also the most cost effective materials is several applications. Of particular interest is the API 5L X65 which is widely used in oil and gas exploration, production and transportation service.

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Performance of Thermally Sprayed Aluminium in 10MPa Supercritical CO2

Product Number: 51324-21069-SG

Author: Shiladitya Paul; Catherine Leahy

Publication Date: 2024

$40.00

This paper reports the performance of thermally sprayed aluminium (TSA) in an aqueous solution pressurized with 10MPa supercritical CO2 at 40°C. Carbon steel specimen (BS EN 10025 S355) was coated with TSA and exposed to 3.5 wt.% NaCl solution pressurised with 10MPa CO2. The specimen was taken out after the 168h test and post-test examination was carried out. Post-test visual examination indicate no significant signs of damage which was confirmed by microstructural characterization. The SEM micrographs indicated promising behaviour of TSA with no corrosion was seen at the TSA-steel interface. However, one must note that the test was carried out for 168h and such short term test seldom give long-term corrosion performance. Nonetheless, the initial results looks interesting and provides some indication of TSA’s promise for protection of steel against CO2 corrosion.

Products tagged with 'sweet corrosion'

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