AMPP Store - Products tagged with 'geothermal'

Available for download

Geothermal Corrosion: High-Temperature Pitting of Stainless Steels and Ni-Alloys

Product Number: 51317--9269-SG

ISBN: 9269 2017 CP

Author: Walter Bogaerts

Publication Date: 2017

$20.00

The temperature dependence of the pitting corrosion resistance of a number of stainless steels, Fe-Cr-Ni and Fe-Cr-Ni-Mo materials in a series of high-temperature high-pressure chloride solutions, with or without addition of various (inhibitive) anions: SO4=, HCO3-, PO43-, OH-, etc.

Available for download

Hydrogeochemical Modelling to Monitor Scaling and Corrosion during Geothermal Energy Production

Product Number: 51317--9044-SG

ISBN: 9044 2017 CP

Author: Helmuth Sarmiento Klapper

Publication Date: 2017

$20.00

Suitability and potential benefit of using hydrogeochemical modelling to monitor scaling and corrosion during geothermal exploration and production in the high-salinity geothermal area of the North German Basin was explored.

Available for download

Importance of Steel Alloying Elements in Geothermal Environment – Nickel Sulphur Interactions

Product Number: 51321-16435-SG

Author: Svava Davíðsdóttir/Andri Í. Þórhallsson/Sæmundur Guðlaug/Kolbrún Ragna Ragnarsdóttir//Dagur Ingi Ólafsson/sson/James D. Maddison

Publication Date: 2021

$20.00

Available for download

Influence Of Brine Precipitates On Materials Performance In Geothermal Applications

Product Number: 51323-18813-SG

Author: Anastasia Stoljarova, Ralph Bäßler, Simona Regenspurg

Publication Date: 2023

$20.00

Since geothermal reservoirs are a feasible energy source to replace fossil fuel supply, many technologies have been developed to take advantage of geothermal energy. Nevertheless, due to the chemical composition of hydrothermal fluids and temperatures, service conditions in geothermal facilities are demanding in many cases in terms of corrosion. Therefore, materials selection based on preliminary material qualification is essential to guarantee a secure and reliable operation of the facilities.

Available for download

Integrated Coating System For Corrosion Protection Of Carbon Steel In Artificial Geothermal Brine

Product Number: 51322-17708-SG

Author: Gabriela Aristia, Le Quynh Hoa, Ralph Bäßler

Publication Date: 2022

$20.00

Geothermal energy is a promising choice for alternative energy resources due to its reliability and low CO₂ emissions. One way to harness this energy, is to extract hot fluid from a geothermal well. Geothermal fluids are a complex medium with different physical and chemical properties depending on the location and depth of a geothermal well. Thus, these fluids can be corrosive to the geothermal power plant depending on the corrosivity class. The geothermal power plant consists of various parts, such as pipelines and heat exchangers. For continuous power generation, this power plant should be safe and durable. Therefore, it is important to protect the infrastructure in this environment from corrosion.

Available for download

Laboratory Testing Of Corrosion Resistant Alloys In Deep Geothermal Well Environment

Product Number: 51321-16693-SG

Author: Bente Cecilie Krogh; Bård Nyhus; Hans Husby

Publication Date: 2021

$20.00

Available for download

Materials Selection Challenges for Geothermal Energy Projects

Product Number: 51317--9258-SG

ISBN: 9258 2017 CP

Author: Keith Lichti

Publication Date: 2017

$20.00

This paper describes some of the materials and process challenges facing geothermal energy developers targeting efficiency improvements and extremes of aggressive geothermal fluid chemistries and temperatures.

Available for download

Metal Sulfide Scale Inhibitors

Product Number: 51320-14459-SG

Author: Konstantinos D. Demadis, Argyro Spinthaki, George Petratos, Juergen Matheis, Duygu Disci-Zayed, Wolfgang Hater

Publication Date: 2020

$20.00

Metal sulfide mineral scaling, fouling and deposition are frequently encountered problems in geothermal systems. Their formation, crystallization and deposition occur principally because of their extremely low solubility, based on the low solubility product (Ksp). Among the metal sulfides that cause problematic issues, the most common ones are iron sulfide (FeS), zinc sulfide (ZnS), lead sulfide (PbS), and, less frequently, antimony sulfide(s) (Sb2S3 and Sb2S5). Zinc sulfide, for example, has a Ksp of 2·10-25 mol²/L², whereas for PbS, it is 1·10-28 mol²/L² (~ three orders of magnitude less soluble). ZnS can precipitate either as Sphalerite or Zinc Blende, and PbS commonly crystallizes as Galena. Mitigation of such ZnS and PbS precipitates and deposits can be achieved by chemical interventions, by the addition of organic chemical additives to the water. Herein, we report the inhibitory effects of phosphonate-based chemical additives for ZnS and PbS scales. These additives can inhibit formation of sulfide scale, and, significantly, prevent its deposition on metal surfaces. The efficiency of these additives is dosage-dependent, and relatively high inhibitor concentrations are needed for their inhibitory activity to take place. Possible mechanisms will be discussed focusing on inhibition and dispersion.

Available for download

Methodologies to Evaluate Corrosion of Carbon and Stainless Steels in Artificial Geothermal Solutions

Product Number: 51324-20716-SG

Author: Gabriela Aristia; Sabrina Marcelin; Nicolas Mary; Gaurav R. Joshi; Francois Grosjean

Publication Date: 2024

$40.00

Corrosion and scaling are some of the most common challenges in geothermal applications due to the complex brine chemistry combined with the high temperatures and pressures, and the gaseous components. To study mineral scaling at metallic surfaces, appropriate corrosion tests representing the real geothermal reservoir and operating conditions must be selected. This paper focus on the reconstruction of thermal gradients between geothermal fluids and the steel walls of wells and heat exchanger tubes, in laboratory and autoclave flow loop tests (up to 200°C and 300 bar), to simulate scaling and corrosion conditions. The implementation of an electrochemical measurement device makes it possible to monitor changes to the electrochemical behaviour of steel subjected to thermal gradients in these environments and so the corrosion response and in situ evolution of scales. Results from carbon steels (N80 and P110) and stainless steel (13Cr) in artificial geothermal brines representative of Dogger and Soultz geothermal wells in France are presented.

Available for download

Microstructural characterization and Corrosion-wear properties of Graphene oxide/ Polytetrafluoroethylene Coatings for Geothermal Drilling Applications

Product Number: 51321-16474-SG

Author: Gifty Oppong Boakye/Danyil Kovalov/Erlend Oddvin Straume/Beatrice Alonso Rodriguez/Danyil Kovalov/Sigrun Nanna Karlsdottir

Publication Date: 2021

$20.00

Available for download

On The Performance Of UNS S32100 vs N08825 Expansion Compensator Materials In Geothermal Applications

Product Number: 51322-17790-SG

Author: Keith Lichti, Soroor Ghaziof

Publication Date: 2022

$20.00

Geothermal fluid pipelines experience temperature changes on startup and shutdown that can be of the order 300 °C. Carbon steel pipeline design can include expansion loops and direction changes to allow for thermal expansion and contraction for the long lengths of pipeline commonly used from geothermal production wells to the geothermal power station and from the station to reinjection wells. In some instances, expansion compensators are used where there is insufficient area for such loops or where the pipe diameter is prohibitively large.

Available for download

Preliminary Study on Al2O3 Sol-Gel Coating for Corrosion Protection of Martensitic Stainless Steel in Artificial Geothermal Water

Product Number: 51321-16777-SG

Author: Gabriela Aristia; Ralph Bäßler; Le Quynh Hoa; Marianne Nofz; Regine Sojref

Publication Date: 2021

$20.00

Products tagged with 'geothermal'

Association for Materials Protection and Performance