AMPP Store - AMPP Conference Papers

Available for download

Development of Inorganic Scale Inhibitors for Ultrahigh-Temperatures Geothermal and HPHT Applications

Product Number: 51324-20727-SG

Author: Samridhdi Paudyal; Chunfang Fan

Publication Date: 2024

$40.00

With the advancement in green technology-based energy generation to achieve net-zero emissions, geothermal energy has been considered one of the options to reduce the carbon footprint from oil/gas production. In this paper, geothermal energy refers to energy generation that involves a high-pressure, high-temperature (HPHT) environment. Both geothermal energy generation and oil and gas production in such environments - which includes the use of steam-flooded wells and geothermal wells are always challenging as a result of operational issues caused by inorganic scale formation. Changes in pH, temperature, pressure, and other factors in such environments can significantly reduce the solubility limit for mineral ions, causing minerals to precipitate from the solution. Calcite (CaCO3), silica (amorphous and colloidal), and poorly crystallized metal silicates are commonly encountered mineral scales in geothermal applications when the system temperature is approximately 200 to 250°C. Most of the commonly used scale inhibitors become inefficient in such geothermal environments as a result of structural disintegration and functional modifications. The problems are more severe in brine that contains divalent metal ions such as calcium and iron at higher concentration levels. This paper discusses various scale inhibitor chemistries that were developed and evaluated for their tolerance and performance at geothermal conditions particularly up to 250°C. The inhibition effect of these chemicals on calcite formation was analyzed in dynamic and static systems. The thermal stabilities of the chemistries were assessed in neat form and formulated product form using Fourier transform infrared spectroscopy (FTIR) analysis, visual inspections, and inhibition performance evaluations through both dynamic and static inhibition tests. The degradation and inhibition efficiencies of the inhibitors were evaluated before and after thermal aging.

Available for download

Development of Iron Sulfide Scale Inhibitor For Ultra-Tight Sandstone

Product Number: 51322-17896-SG

Author: Cyril Okocha, Tao Chen, Alex Thornton, Qiwei Wang

Publication Date: 2022

$20.00

Oilfield sulfide scale formation is peculiar to sour production scenarios, and for many oil and gas fields the issue of iron sulfide scale management downhole presents a major challenge. Historically iron sulfide scaling downwell have featured ‘reactive’ chemical dissolver interventions to recover well production once sulfide scale has deposited, and operators have published extensively on their experiences i.e. coiled tubing deployed dissolver technologies used in well clean-out treatments (Green, et.al. 2014, Wang et.al. 2017, Wang et.al. 2018, Buali et. al 2014).

Available for download

Development Of Methodologies For Continuous And Batch Inhibitor Film Persistency Investigation In The Laboratory

Product Number: 51322-18056-SG

Author: Mengqiu Pan, Kasra Shayar Bahadori, Maryam Eslami, Bruce Brown, Marc Singer

Publication Date: 2022

$20.00

Application of corrosion inhibitors confer many advantages for combatting internal pipeline corrosion in the upstream oil and gas industry. It is known that the associated costs for using corrosion inhibitors are low compared to other mitigation techniques [1]. For continuous injection procedures, water-soluble inhibitors are not expected to form long-lasting films, so they must be continuously injected to maintain their effectiveness. Batch inhibitors are usually higher molecular weight species and oil soluble. They tend to be more tenacious, providing a protective barrier between the water and the metal over a long period of time.

Available for download

Development of Molecular Probe for Iron Reducing and Thiosulfate Reducing Bacteria

Product Number: 51324-20885-SG

Author: Tekle Fida; Luke Austin; Scott Leleika; Taylor Rambo; Karen Crippen

Publication Date: 2024

$40.00

Microbiologically Influenced Corrosion (MIC) activities are mostly monitored by using canonical culture-based methods. However, these methods detect only culturable bacteria or require months of incubation to get results. To overcome this, molecular detection methods were developed for many of the MIC-causing microbes but were not available for Iron Reducing Bacteria (IRB) and Thiosulfate Reducing Bacteria (TRB). IRB and TRB are among the dominant group of microbes involved in corrosion and souring oil and gas infrastructures. In the present study, molecular probes were developed for IRB and TRB by targeting functional genes implicated in iron and thiosulfate reduction, respectively. Candidate gene sequences were retrieved from genome repository databases of pure isolates or metagenomic sequences. The sequences were aligned using bioinformatic software and primer-based probes were developed from conserved regions. Specificity and efficiency of the primers were validated by amplifying the sequences of target and non-target microbes using Quantitative Polymerase Chain Reaction (qPCR) methods. The probes successfully detected candidate microbes in biocorrosion samples collected from various gas processing facilities. The identified primer-based probes will help oil and gas industries to monitor MIC activities and develop timely management strategies to prevent undesirable microbial activities while improving system integrity and safety concerns.

Available for download

Development Of Multilayer Coating Systems For Self-Healing Protection And Corrosion Mitigation In The Atmospheric Zone Of Offshore Wind Turbines.

Product Number: 51322-17691-SG

Author: Adamantini Loukodimou, Dimitrios Statharas, David Weston, Shiladitya Paul

Publication Date: 2022

$20.00

Offshore metallic structures have an average life-time of 20-25 years. They consist of four different zones, the buried, the submerged, the tidal/splash and the atmospheric one. According to NACE 2013 the global corrosion cost is estimated to be US$2.5 trillion, consisting a major economic problem. Hence, protection from corrosion is essential. Each zone is protected either with cathodic methods, or with a combination of cathodic methods and coatings. More specifically, the protection of the atmospheric zone, which is the aim of this research, due to the lack of continuous electrolyte (seawater) does not allow the application of cathodic protection.

Available for download

Development of new coating for PEMFC’s bipolar plate: Role of oxygen on corrosion properties for TiOxNy coating

Product Number: 51323-19532-SG

Author: Clément Cambier, Marie-Alix Leroy, Jules Galipaud, Benoit Ter-Ovanessian, Bernard Normand

Publication Date: 2023

$20.00

The Polymer Electrolyte Membrane Fuel Cell (PEMFC) is attracting interest as a generator of electricity that does not emit greenhouse gases, provided that hydrogen is produced via clean processes. However, their large-scale commercialization is still limited by high cost and limited durability. As essential elements of the PEMFC, the bipolar plates (BPPs) enable the transport of electrons to the external circuit, guarantee the mechanical assembly of the cell, distribute the reactive gases, and evacuate the water.

Available for download

Development of New Coating Systems for High Erosion Environments

Product Number: 51323-19184-SG

Author: John M. Bronk, Robert Polance, Benjamin Chaloner-Gill, Peter Hillman, Frank Zychowski, Mason Kinter

Publication Date: 2023

$20.00

Components utilized in oil field operations are often exposed to harsh environments. Corrosion and wear of components and piping can be considered one of the main causes of failure. These components are exposed to high flow rates, high pressures, and other environmental conditions.

Available for download

Development Of New Grades Of Titanium-Based Metal Glasses For Dental Applications

Product Number: 51323-19522-SG

Author: Dr. Benoît Ter-Ovanessian

Publication Date: 2023

$20.00

Nowadays, titanium-based alloys are commonly used in biomedical applications as, for example, materials for dental implants or hip replacements. Their good corrosion resistance, biocompatibility and high mechanical properties for a relative weight make them good candidates. However, improvements in the design of these alloys for biomedical applications need to be made.

Available for download

Development of Novel Silica Scale Inhibitors for Geothermal Brine

Product Number: 51323-19377-SG

Author: Aarthi Narayanan, Nugraha Yohannes Arifpin, Dinesh Mantri

Publication Date: 2023

$20.00

Geothermal energy is a cost-effective, reliable, sustainable, and environmentally friendly solution to produce electricity using the energy resources available underground. Binary plants are becoming more popular as it helps extract the most enthalpy. In binary plants, brine is cooled to its lowest possible temperature to maximize energy extraction.

Available for download

Development of Optimal Hydrogen Sulfide Scavengers for Oilfield Applications

Product Number: 51323-19563-SG

Author: Zhengwei Liu , Scott Lehrer, Jagrut Jani, Sunder Ramachandran, Jeremy Leidensdorf, James Ott, Dylan Albers, Laszlo Soos

Publication Date: 2023

$20.00

Sour gases like hydrogen sulfide (H2S) are one of the main risks associated in the production and processing of oil and gas. H2S is a very toxic and pungent gas that causes problems in both the upstream and downstream oil and gas industry. Exposure to H2S, even at relatively low concentration can prove deadly and has many HSE implications.

Available for download

Development of probabilistic models of defect interaction identification and failure pressure for pipelines with colony of corrosion defects

Product Number: 51323-19404-SG

Author: Kiswendsida Jules Kere

Publication Date: 2023

$20.00

The U.S. has more than 2.6 million miles of pipelines that transport natural gas and petroleum products. These pipelines are subjected to various potential threats (e.g., aging, harsh environment, natural hazard) during their service lives. Particularly, corrosion that results in loss of metal on external or internal surfaces of pipelines is one of the leading causes of the pipeline failure.

Available for download

Development of reliable accelerated corrosion tests for aluminum alloys used in the aerospace industry

Product Number: 51323-19133-SG

Author: Fabienne Peltier, Dominique Thierry

Publication Date: 2023

$20.00

Aluminum alloys exhibit good resistance to atmospheric corrosion due to the presence of a fine, passive oxide layer. Nevertheless, these alloys are not immune to corrosion which can take the form of localized corrosion like pitting, intergranular or exfoliation corrosion. Thus, the assessment of the corrosion behavior of aluminum alloys under atmospheric conditions is a major topic for many applications including the aerospace industry.

AMPP Conference Papers

Association for Materials Protection and Performance