AMPP Store - AMPP Conference Papers

Available for download

Digitalized Corrosion Control Documents for Enhanced Refinery Mechanical Integrity and Reliability

Product Number: MECC23-20026-SG

Author: Sridhar Srinivasan; Gerrit Buchheim

Publication Date: 2023

$20.00

Refinery operations, characterized by significant process complexities, have traditionally remained as a domain where accurate asset integrity and life prediction have been difficult to achieve. Such difficulty stems from the need to characterize and manage corrosion across different critical process units and parameters; quantifying corrosion has thus become a key factor in ensuring asset integrity, and absence of appropriate corrosion management strategies has often been the cause of some of the most destructive and expensive corrosion failures. Managing corrosion in refineries is a complex task, given the engineering intricacies associated with the processes and operations.

Available for download

Direct Comparison of the ASTM G48 and ASTM A923 Ferric Chloride Corrosion Test Methods for the Detection of Deleterious Phases in Duplex Stainless Steels

Product Number: 51323-18874-SG

Author: Bruce Cowe, Hervé Marchebois, Christophe Mendibide

Publication Date: 2023

$20.00

Ferric chloride corrosion testing has been used to detect the presence of deleterious intermetallic phases and non-metallic precipitates in duplex stainless steels, such as sigma, Chi and chromium nitrides, for several decades. These corrosion tests are normally specified alongside metallographic assessment and impact testing as combined measures to demonstrate that these materials have been processed and heat treated in a satisfactory manner and exhibit suitable microstructures which should give the required mechanical and corrosion (and cracking) resistance.

Available for download

Discussion On Long Range Ordering Of Ni-Based Alloys Used In BWR Environment

Product Number: ED22-18533-SG

Author: Yun Wang, Ryoji Obata, Shinichi Ishioka

Publication Date: 2022

$20.00

Due to the strength, ductility, fracture toughness, corrosion resistance and especially the coefficient of thermal expansion, which is between stainless steel and low alloy steel, Ni-based alloys are used as weld metals in BWR and ABWR internals. Ni-based alloys with high chromium (Cr) concentration, such as Alloy 52 (Cr: 28-31.5 wt.%), Alloy 52i (Cr: 26-28 wt.%) and so on are expected to have higher SCC resistance than 182 (Cr: 13-17 wt.%) and Alloy 82 (Cr: 18-22 wt.%) in BWR environment.

Available for download

Dissimilar Tube-to-Tube Sheet Welding Challenges - A Case Study

Product Number: 51324-21022-SG

Author: Prabhu Bala; Krishnan Sivaraman

Publication Date: 2024

$40.00

A heat exchanger is a device used to transfer heat between two or more fluids and it is an integral part of any oil and gas refinery. Tube-to-tube sheet welding is the most critical activity in fabricating this equipment [1]. There are many factors which needs to be considered to produce a highly reliable weld joint. These factors include the type of the joint, weld joint design, selection of suitable filler wire, and robust inspection plan deployed during fabrication [1]. The task of selecting a suitable filler wire becomes much more challenging when the heat exchanger consists of dissimilar tube to tube sheet weld joints. This paper discusses a case study on the filler metal selection methodology followed for the dissimilar tube-to-tube sheet welding of SB163 UNS N08935 (With 35% of Ni) tube to Alloy 400 clad tube sheet for one of the heat exchangers

Available for download

Distribution of Corrosion Attacks in Sour Pipelines – A Parametric Study

Product Number: 51323-18981-SG

Author: Abdulrahman Alqahtani, Layan AlSharif, Faisal Abbas, Christian Canto Maya

Publication Date: 2023

$20.00

In pipeline corrosion management practice, one challenge is how to locate the most corrosive area along the right-of-way of an existing pipeline. Pipeline networks are complex systems containing different grades of multiphase crude oil coming from dissimilar reservoirs, which results in fluids having dissimilar chemical and physical properties along each network. The fluid starts flowing into a pipeline at a certain pressure, temperature, and associated velocity.

Available for download

Do's and Don'ts of Greenfield Pressure Systems Integrity Program Development

Product Number: 51324-20861-SG

Author: Adam Haavisto

Publication Date: 2024

$40.00

Greenfield pressure system integrity program development provides unique opportunities and challenges for an asset's inspection program. As new projects become more complex and a global effort, a well-tuned integrity program provides significant risk reduction and quality checks against the design. This paper is intended to help managers and asset owners optimize their greenfield integrity program to identify new risks while providing cost effective programs. The paper will discuss the optimal time to start their program development, who should be involved, how you can integrate design and operation teams, and be provide additional value-added reasons to have an integrity program in place before commissioning.

Available for download

Downhole Scale Removal in High Temperature Sour Gas Wells

Product Number: 51324-20834-SG

Author: Mauricio A. Espinosa; Tao Chen; Qiwei Wang; Jairo Leal

Publication Date: 2024

$40.00

Extensive work has been carried out by lab scientists and production engineers that recognized the multi-compositional scale deposition challenges in one high-temperature gas field. Removing such scales has been a challenging and complex process. In addition to the high temperatures and high H2S, other factors, such as downhole completion, near wellbore pressure, formation permeability, and high deposit amounts, must also be considered in developing and selecting the descaling strategies. Coiled tubing (CT) mechanical descaling was developed and deployed in the past by taking advantage of state-of-the-art technologies such as high RPM milling, downhole sensors, foamed cleanup tools, and sophisticated surface collecting and well testing equipment. However, CT descaling operations have become limited in recent years due to reduced downhole pressures in some wells as the field matures. This paper describes the results of the field implementation of the newly patented scale dissolver technology for dealing with mixed scales. Lab studies demonstrated that this chemical product has the potential to be used for both tubing/liner/completion and formation stimulation benefits as well. Field results showed significantly increased gas productivity in conjunction with improved well operational factors as well as retrieved well accessibility. A discussion on the different lab evaluation protocols is also presented, and a final update on current scale clean-up strategies and future proposals is included. The results presented in this work represent recent advancements in iron sulfide scale management. The new scale dissolver technology is under commercialization and can be applied to various systems, such as oil and gas producers, water injectors, and surface handling facilities.

Available for download

Downhole Sour Corrosion And Scale Deposition In Oil Wells

Product Number: 51322-17694-SG

Author: Tao Chen, Frank Chang, Feng Liang, Steven Hochanadel

Publication Date: 2022

$20.00

Sour corrosion and iron sulphide scale deposition are two common flow assurance issues encountered in oilfields. Sour oil wells typically produce crude along with produced water and a significant amount of acidic gases such as carbon dioxide and hydrogen sulfide. The high pressure and temperature conditions under the downhole tend to cause severe corrosion damage including metal loss and pitting, along with iron sulphide scale deposition. Iron sulfide deposition in sour wells is a corrosion induced scale problem. It potentially causes production decline, restricted well intervention, well shutdown, or even severe consequences towards to the abandoned wells.

Available for download

Drawbacks of Corrosion Creep as a Performance Indicator for Corrosion Protective Coatings

Product Number: 51323-19270-SG

Author: Andreas Løken, Anders W. B. Skilbred

Publication Date: 2023

$20.00

One of the most common ways of protecting steel assets and structures is by organic protective coating systems. The performance of such protective coating systems is assessed based on results after accelerated laboratory exposure testing, where one attempts to mimic the conditions the coatings will be exposed to under in-service conditions in a significantly shorter time frame. Such testing is also how coating systems are qualified for certain corrosivity classes and durabilities, being formalized in standards and specifications such as ISO 12944-6 and NORSOK M-501 ed. 7.

Available for download

DTT Vacuum Vessel Cooling Circuit: Borated Water Chemistry Assessment

Product Number: ED22-17307-SG

Author: Claudia Gasparrini, Luigi Di Pace, Nicholas Terranova, Rosaria Villari, Emanuela Martelli, Piergiorgio Sonato, Mauro Dalla Palma, Giuseppe G Scatigno

Publication Date: 2022

$20.00

Water chemistry definition in nuclear fusion research experiments is under development. Many nuclear fusion experiments, such as the Italian Divertor Tokamak Test Facility (DTT)[1], the Korea Superconducting Tokamak Advanced Research (KSTAR) [2] and Japan Torus-60 Super Advanced (JT60SA) [3] reactors consider the use of enriched boric acid (up to 95% 10B) in water to shield the superconducting coils by neutrons generated from nuclear fusion reactions in the plasma chamber.

Available for download

Dual Functional Corrosion Inhibitor Design And Testing For Top-Of-Line And Bottom Of Line Corrosion

Product Number: 51322-17787-SG

Author: Larry Chen, Nihal Obeyesekere, Jonathan Wylde, Michael Sim

Publication Date: 2022

$20.00

TOL corrosion is reported to occur in large diameter wet gas pipeline in stratified flow conditions
due to low fluid velocities1. With increasing distance from the inlet, the wet gas pipeline becomes
cooler as it loses heat to the environment. Such cooling causes water, hydrocarbon, and other
high vapor pressure species to condense on the pipe wall. The upper part of the pipe will
constantly be supplied with freshly condensed water while the less corrosive water saturated
with corrosion products will be drained along the pipe wall to the bottom of the line.

Available for download

Duplex Zinc Coatings for Offshore Wind Towers

Product Number: 51324-20688-SG

Author: M. Gagné

Publication Date: 2024

$40.00

Proven corrosion protection coatings for the towers of offshore wind turbines (OWT) are critical for the financial viability of the asset. Duplex zinc coatings were used to protect the towers on the first offshore wind farms in the North Sea and their exceptional performance during the 25-year design life of the windfarm underscores their continued use in this application. Financial models show the significant benefit of eliminating the need for corrosion maintenance on OWT towers over the life of the structure.

AMPP Conference Papers

Association for Materials Protection and Performance