AMPP Store - Individual Conference Papers

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Mechanisms And Polymorphic Transformation Of Calcium Carbonate Inorganic Scale In Oil-Water Emulsion.

Product Number: 51322-17876-SG

Author: Olujide Sanni, Wassim Taleb, Richard Barker, Anne Neville, Ogbemi Bukuaghangin, Thibaut Charpentier, Frederick Pessu

Publication Date: 2022

$20.00

The formation of mineral scale is an undesirable phenomenon which is as a result of the disturbances in thermodynamics and chemical equilibria of the water system. CaCO₃ scale is one of the major flow challenges in the oil industry and the crystallization process starts from thermodynamically unstable hydrated form to anhydrous polymorphic stable forms^1,2 The transformation involves a series of ordering, dehydration, and crystallization processes, each lowering the enthalpy of the system where the crystallization of the dehydrated amorphous material lowers the enthalpy the most. There are two theories regarding the polymorphic transformation of a solid structure. The first suggests the transformation occurs through a direct solid transition in which the metastable phase exhibits a rearrangement of its molecules or atoms to a more stable form³. The second is valid in the presence of a solvent which allows the dissolution and the re-nucleation and growth of the stable phase⁴.

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Mechanistic Correlations Between Single and Multicomponent Corrosion Inhibitor Blends for CO2 Corrosion Control

Product Number: 51317--9190-SG

ISBN: 9190 2017 CP

Author: Carlos Menendez

Publication Date: 2017

$20.00

Mechanistic information was obtained employing such electrochemical techniques as linear polarization, electrochemical frequency modulation and potentiodynamic polarization while using a rotating cylinder electrode system under CO2 corrosion conditions.

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Mechanistic Insights into Refinery Sulfidation Corrosion

Product Number: 51323-19107-SG

Author: Ishan Patel, Gheorghe Bota, David Young

Publication Date: 2023

$20.00

High temperature sulfidation (or sulfidic) corrosion of steel by sulfur species in crude oil has long been known to damage refinery equipment. Corrosion engineers have been using prediction curves derived from field corrosion data to estimate rates of sulfidation corrosion. However, a significant inaccuracy is often encountered in these estimations because of the extensive diversity in molecular structures of sulfur compounds in crude oils.

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Mechanistic Model as a Bias toMachine Learning Algorithm for Confident Prediction of Corrosion

Product Number: 51323-19108-SG

Author: Ishan Patel, Gheorghe Bota

Publication Date: 2023

$20.00

A constant challenge persists among corrosion engineers to estimate and predict field corrosion rates despite the huge advancements in corrosion science. This situation has compelled the corrosion engineers to opt for the machine learning (ML) algorithms for corrosion prediction. However, the “blackbox” ML algorithms are not appreciated in high stakes decisions because they use arbitrary fitting models rather than scientific principles.

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Mechanistic Modeling Of The Impedance Response Of Cathodic Reduction Of Hydrogen Ion In Strong Acidic Environments

Product Number: 51322-17900-SG

Author: Negar Moradighadi, Yoon-Seok Choi, Srdjan Nesic

Publication Date: 2022

$20.00

EIS is one of the techniques which is frequently used for studying electrochemical reactions on a metal surface in an aqueous environment. However, one of the main challenges in using EIS is the interpretation of results. Various interpretation methods and their associated uncertainties lead to ambiguous outcomes and often end up with a biased analysis One of the methods frequently used is the so-called “equivalent electrical circuit” method which models the response of and electrochemical system by matching it to that of a combination of “analogous” electrical circuit components, such as resistors, inductors, capacitors, etc.

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Mechanistic Studies of Sour Underdeposit Corrosion in the Presence of Chemical Inhibition

Product Number: 51315-6004-SG

ISBN: 6004 2015 CP

Author: Zhengwei Liu

Publication Date: 2015

$20.00

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Mechanistic Study of the Effect of Iron Sulfide Layers on Hydrogen Sulfide Corrosion of Carbon Steel

Product Number: 51315-5933-SG

ISBN: 5933 2015 CP

Author: Yougui Zheng

Publication Date: 2015

$20.00

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Mechanized GMAW Root Profile Irregularities and Its Effects

Product Number: MPWT19-15392

Author: Alawi Al Saigh, Fahad Al Mahashir,

$0.00

This paper illustrates and discusses a failure that occurred during construction of a carbon steel pipeline, in which the root profile irregularities led to an unacceptable surface condition that affected the application of liquid epoxy coating. This irregularity was identified to be weld root protrusions having sharp edges due to poor implementation of Mechanized GMAW welding process and periodic maintenance of equipment which left a gap between copper backing shoes of the internal clamps. Therefore, the integrity and effectiveness of applying internal coating of carbon steel pipeline was jeopardized, which necessitated all effected weld joints with unacceptable root profile to be rectified.
In order to identify the root cause(s) of these irregularities, the client and contractor performed an in-depth thorough investigation. In addition to the investigation findings, the paper will also highlight the following:
a. The resolution, which involved the cutting out and re-welding of more than 1200 joints.
b. The significant impact of the rectification process on the project’s schedule and cost.
c. Recommendations for future projects.
Furthermore, as all data and findings collected during this investigation were crosschecked against project design and construction requirements, the following identified areas of improvement and preventive measures are recommended:
a. Proper project planning, execution and resource availability.
b. Pre-production qualification of welding/coating application and quality assurance process.
c. Periodic preventive maintenance of the welding equipment.
d. Application of improved techniques/technologies to verify the weld root profile.
Implementing the above should result in enhanced process control, improved root profile and reduced coating application deficiencies that will minimize reworks, reduce rejection, improve
progress, and ultimately provide the desired quality for both weldments and coating at an optimum cost.

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Meeting Expectations When Specifying Concrete Rehabilitation

Product Number: 51218-103-SG

Author: Mike Dadik

Publication Date: 2018

$20.00

There are many approaches for rehabilitating deteriorated concrete. The options challenge applicators, estimators, and engineers when executing rehab projects. Selecting the cost-effective approach requires understanding the concrete condition, available coating systems, and level of effort to repair and coat the concrete. A well written specification balances a level of detail that conveys the specifier’s intent with opportunities for contractor innovation to provide facility owners with the best value.

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Mercury Liquid Metal Embrittlement of ASTM Grade 29 Titanium

Product Number: 51316-7556-SG

ISBN: 7556 2016 CP

Author: Ronald Schutz

Publication Date: 2016

$20.00

Results of exposing UNS R56404 forging and pipe product forms to liquid mercury over the 25°-232°C range while highly stressed at & beyond the alloy’s yield point via three loading modes are reported. Included are: sustained load 90 day C-ring tests, slow strain rate tensile testing, and rippled slow strain rate cyclic tensile loading.

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Mercury Liquid Metal Embrittlement Testing of Oil and Gas Production Alloys

Product Number: 51314-3993-SG

ISBN: 3993 2014 CP

Author: Stefanie Asher

Publication Date: 2014

$20.00

Liquid metal embrittlement (LME) involves penetration of a liquid metal into a solid metal that leads to brittle fracture. A test program was established to evaluate the susceptibility of various metallic materials to LME by mercury.

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Mesh Free Epoxy Passive Fire Protection - The Challenge: Advancements in Intumescent Epoxy Rapid Rise Passive Fire Protection Reduced Labor and Installation Costs

Product Number: 41214-867-SG

Author: Gordon Walker

Publication Date: 2014

$20.00

Since the inception of Epoxy Passive Fire Protection (EPFP), the industry has depended upon systems that require mesh reinforcement. The addition of this mesh adds at least $3.72 USD/sq. ft. to the applied systems. To avoid any risk of failure when exposed to fire reinforcement mesh must be correctly installed in accordance with the product’s certification and type approvals.

Individual Conference Papers

Association for Materials Protection and Performance