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Picture for Sohic Resistance of SA516 Grade 70 Carbon-Manganese Steel for Oil and Gas Applications
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Sohic Resistance of SA516 Grade 70 Carbon-Manganese Steel for Oil and Gas Applications

Product Number: 51317--9076-SG
ISBN: 9076 2017 CP
Author: Sandra Le Manchet
Publication Date: 2017
$20.00

Stress Oriented Hydrogen Induced Cracking (SOHIC) susceptibility of SA516 Grade 70 carbon-manganese steel was studied according to NACE MR0175/ISO15156-2 standard by four-point-bending and constant load test methods. Base metal and welded specimens were investigated.
Picture for Some Recent Corrosion Problems in Thermal Desalination Plants
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Some Recent Corrosion Problems in Thermal Desalination Plants

Product Number: 51319-12816-SG
Author: Roger Francis
Publication Date: 2019
$20.00

Copper alloys are widely used for the heat exchanger tubes in both multi-stage flash (MSF) and multiple effect distillation (MED) thermal desalination plants. Millions of metres of such tubing have been used and generally the copper alloys give good performance. In the last few years the author has looked at a number of failures from thermal desalination plants in the Middle East. These are not from one location but have occurred in different areas in different plants. The failure mechanisms are also different in each area. The common feature of the failures is that the corrosion mechanism for each one is well understood and they could all have been prevented by using a corrosion engineer at the design stage. This paper presents some of the diverse range of case studies and explains how they could have been prevented.
Picture for Sour Corrosion Products Formed in High H2S Gas Wells
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Sour Corrosion Products Formed in High H2S Gas Wells

Product Number: 51319-12866-SG
Author: Qiwei Wang
Publication Date: 2019
$20.00

Sour corrosion products could have a significant impact on the corrosion rate of carbon steel in H2S environments. It is widely believed that the different iron sulfides have different effects due to their distinct physico-chemical properties. Therefore an in-depth knowledge on the formation conditions of these polymorphous phases is of virtual importance for the understanding of sour corrosion process.Many studies have been performed to determine the key factors such as temperature solution pH H2S partial pressure and the duration of exposure in the formation of polymorphous iron sulfides; yet their formation conditions stability and phase relations are still not fully understood. This is partially due to the complex nature of sulfide and iron chemistry and their sensitiveness to oxygen. Seemingly minor changes in test conditions can often lead to dramatically different results.In this paper we present a statistic study on the corrosion products formed in some high temperature and high H2S gas wells in Saudi Arabia. Large numbers of deposits collected from downhole tubulars and wellhead manifolds are characterized for phase compositions. Results show a wide range of mineral phases and significant variation among the samples analyzed. The polymorphous iron sulfides include pyrrhotite pyrite marcasite troilite mackinawite and greigite in the order of abundance. Ferric iron compounds such as hematite magnetite akaganeite goethite and lepidocrocite are also identified in many samples. In addition ferrous iron products especially siderite are often detected. Based on the deposit structure analysis the formation mechanisms of these different types of corrosion products are discussed. It is hoped that the results from this work will contribute to further understanding of the sour corrosion process and provide value for corrosion and scale mitigation in oil and gas fields.
Picture for Sour Environmental Severity Based On Hydrogen Permeability And HIC/SSC Susceptibilities
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Sour Environmental Severity Based On Hydrogen Permeability And HIC/SSC Susceptibilities

Product Number: 51321-16543-SG
Author: Taishi Fujishiro/ Takuya Hara/ Daisuke Mizuno/ Nobuyuki Ishikawa/ Kyono Yasuda/ Eiji Tada/ Mitsuo Kimura
Publication Date: 2021
$20.00
Picture for Sour Gas and Hydrogen Embrittlement Resistance of High-Strength UNS N07022 Alloy for Oil and Gas App
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Sour Gas and Hydrogen Embrittlement Resistance of High-Strength UNS N07022 Alloy for Oil and Gas App

Product Number: 51317--9479-SG
ISBN: 9479 2017 CP
Author: Jeremy L. Caron
Publication Date: 2017
$20.00

Recent results of sour gas and hydrogen embrittlement testing of CW N07022 alloy will be presented. The test results of CW N07022 alloy will demonstrate that it offers superior properties to precipitation-strengthened Ni-base alloys for demanding oil and gas applications.
Picture for Sour or Not Sour? That Is the Question: A Review of The NACE “Sour Limit” – Evolution and Implications for Modern Oil & Gas Production
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Sour or Not Sour? That Is the Question: A Review of The NACE “Sour Limit” – Evolution and Implications for Modern Oil & Gas Production

Product Number: 51321-16626-SG
Author: Eric Caldwell/ Russell Kane/ Brian Chambers
Publication Date: 2021
$20.00
Picture for Sour Service Limit Of 17% Cr Stainless Steels Grades For OCTG
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Sour Service Limit Of 17% Cr Stainless Steels Grades For OCTG

Product Number: 51321-16637-SG
Author: Toshiyuki SUNABA/ Susumu HIRANO/ Thiago MESQUITA/ FranceHerve MARCHEBOIS/ Thierry CASSAGNE
Publication Date: 2021
$20.00
Picture for Sour Service Test Qualification of a New High-Strength Titanium Alloy
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Sour Service Test Qualification of a New High-Strength Titanium Alloy

Product Number: 51315-5794-SG
ISBN: 5794 2015 CP
Author: Ronald Schutz
Publication Date: 2015
$20.00
Picture for Sour Under-Deposit Corrosion With Different Iron Sulfides
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Sour Under-Deposit Corrosion With Different Iron Sulfides

Product Number: 51321-16703-SG
Author: J. Kvarekvål; M. Tjelta
Publication Date: 2021
$20.00
Picture for Sour Weld Corrosion Mitigation with a Low Dose Inhibitor
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Sour Weld Corrosion Mitigation with a Low Dose Inhibitor

Product Number: 51319-13324-SG
Author: Jody Hoshowski
Publication Date: 2019
$20.00

Preferential weld corrosion offers a uniquely different mitigation challenge to operators of high throughput oilfield production in carbon steel pipelines. This has a significant impact on the expected lifetime of the pipeline and thus will require chemical inhibition programs to control such localized corrosion effects. As a part of OPEX these programs require field optimization whilst providing the desired level of corrosion protection at minimum inhibitor dose rate.A low dose corrosion inhibitor has been developed that inhibits sour corrosion of individual weld components of pre-corroded steel coupons prepared from pipeline material. Metallurgical analysis of the weld section extracted from the pipeline was performed which illustrated unusual composition of the material.The lower corrosion inhibitor dose also reduces the influence of secondary effects (including emulsion and foaming) eliminating the need for specialized formulation additives and the injection of additional chemistries. Due to the low water cut and the stratified flow regime of a subsea pipeline the partitioning behavior of the product was an important consideration during product development. Since the treatment of bacteria in the pipeline was necessary the compatibility of the inhibitor with the incumbent biocide was critical.This paper details the test work performed to develop a new inhibitor to prevent weld corrosion under sour conditions. The inhibitor was evaluated in numerous performance under including kettle tests high pressure autoclaves partitioning and autoclave weldment corrosion tests.
Picture for Sparger Design And Its Effect On Gas Holdup In Triazine Based H2S Scavenger Columns
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Sparger Design And Its Effect On Gas Holdup In Triazine Based H2S Scavenger Columns

Product Number: 51321-16620-SG
Author: Joseph Bopp
Publication Date: 2021
$20.00
Picture for Special Forgings. Technical and Quality Requirements Supplementary to Standard
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Special Forgings. Technical and Quality Requirements Supplementary to Standard

Product Number: MPWT19-15297
Author: Ricardo Hernández Soto, Abdullah M. Al-Rumaih
Publication Date: 2019
$0.00

Long weld neck flanges, self-reinforced forged connections (SRCs), forged Y-rings and other special
forgings are widely used in pressure-vessel fabrications for Oil and Gas industry. ASTM(1) A-350 LF2
Class 1 is one of the most common materials specified for these tailor-made components, especially for
SRCs on pressure vessels with toughness requirements, as this material warranties 20 Joules (average
of three specimens) at -46 ºC. However, in recent years there has been growing concern in the industry
as a result of the increasing number of cases of low toughness and low tensile strength issues with
materials certified as ASTM A-350 LF2. This is fostering the definition of additional requirements to the
ASTM to minimize the risk.
The complexity of the metallurgical processes involved in mechanical properties deterioration, where
multiple variables interact, mandates to implement control majors during the fabrication of ASTM A-350
forging materials. This paper introduces some guidelines to enhance the quality control and mechanical
testing reliability in the certification process of special forgings carried out by manufacturers. These
guidelines can be applied to not only to those made of ASTM A-350, but also to ASTM A-266 and ASTM
A-765
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