... to challenges related to material selections. This paper summarizes part of a desktop case study that addresses corrosion and scaling issues for conditions relevant for the IDDP-2 geothermal well. The reservoir and well data are based on temperature measurements inside the well and assumptions on a hydrostatic...

.... The resultant deposition of these materials onto the tube surface can be as benign as a nuisance to a major problem involving both production output/delays and operational safety. A potential solution to this problem is to apply a coating with “nonstick” properties to prevent scaling and organic fouling where...

...Abstract HS Orka has operated the Svartsengi Geothermal Power Plant since 1976, the Reykjanes geothermal system since 1982, and the 100 MW Reykjanes Power plant since 2006. Scaling problems have been observed in wells and in most parts of the surface equipment. This paper describes the various...

...For effective scale management, it is widely recognized that accurate scale prediction is of great importance. This provides impetus for the continued development of thermodynamic electrolyte models for predicting solubility and scaling tendency of minerals in oil and gas environments. The main...

...A wide range of process parameters can impact corrosion as well as CI performance. The list includes parameters such as: temperature, salinity, pH, partial pressure of acidic gasses, flow pattern / velocity, presence of deposits (scale/sand), oil/water ratio, partitioning, metallurgy...

...Figure 6 compares the hydrophobicity of the coatings prior to exposure to HTHP H₂S. Most coatings are either hydrophobic or superhydrophobic ⁴ , which is expected to correlate with non-stick behavior with respect to water-soluble scale. ⁵ This apparatus was used...

...Polymeric Inhibitors Abstract The use of polymer based chemical inhibitors has the advantage of utilizing chemical, macromolecular, and compositional (blends or block copolymers) towards chemical inhibitors whether it is for corrosion or scaling issues. It is important to understand the multi...

... However, current commercially available monitoring systems are constrained in terms of operating temperature and pressure. This obviously limits their use for monitoring corrosion in deep geothermal wells, where corrosion is also expected. In addition, no scaling monitoring systems, to the knowledge...

... of the scales at the samples surface. It has to be considered, however, that permanent fluid flow might significantly affect the formation and protectiveness of the scale layers obtained in this study. ACKNOWLEDGEMENTS The authors thank Baker Hughes Incorporated for supporting this work and for permission...

...Abstract Under-deposit Corrosion (UDC) is a form of localised corrosion caused by the localised concentration of dissolved chemicals (e.g. CO₂, Hydrochloric acids and Sulphuric acids), Scales and sand deposits. A set of experiments were conducted under different conditions...

...Abstract Productivity losses of up to 90% had been observed in large offshore oil wells within less than a year of operation. Extensive investigation into possible formation damage and/or pore plugging, due to migration of formation fines (clay particles), had been conducted. Scaling...

... of a multifunctional terpolymer chemistry targeted to control iron and a wide range of boiler water contaminants and promote high levels of transport through the boiler system in low to moderate pressure boiler systems. Data will be presented that correlates laboratory performance in research scale test boilers...

...WFGD grinding localized corrosion stainless steel pitting crevice roughness scaling INTRODUCTION The Electric Power Research Institute (EPRI) ⁽¹⁾ and Det Norske Veritas USA, Inc. (DNV) ⁽²⁾ performed a field-testing program that supported a “Corrosion in Wet FGD...

... Inspection All the tubes were cut open and the interior inspected visually at the Innovation Center of Iceland (ICI) after the testing. Very little silica scale was visual in the tubes but in a few places small spots of silica scale were visible, e.g. in the UNS N08028 tube in Figure 4 . Table 1...

.... Different pilot studies were set up to investigate the usability of the superheated steam for power production. This included wet scrubbing equipment which, after the experiment, was inspected for corrosion and scaling. This involved visual inspection of the equipment and microstructural and chemical...

...Mineral scaling is a recurring problem in geothermal power station infrastructure. It occurs when geothermal fluids become thermodynamically supersaturated with respect to one or more minerals, resulting in the deposition of mineral scales that foul pipelines, separators and heat exchangers...

...silica scaling corrosion prediction monitoring INTRODUCTION Geothermal fluids derived from deep hot water-rock reservoirs contain dissolved solids, at the concentrations varying from about 100 mg/kg (Iceland) to about 250,000 mg/kg (Salton Sea). Utilization of produced waters after steam...

... of sulfate-reducing bacteria (SRB) and acid-producing bacteria (APB) can lead to operational issues including: 1) biogenic sulfide production and formation souring, 2) plugging from iron sulfide scale production, 3) microbially influenced corrosion (MIC), and 4) premature degradation of fracturing fluids...

...Geometry scaling for corrosion in a crevice of constant gap has been studied broadly, but time scaling for crevice potential and chemistry under unsteady-state conditions has never been reported. In addition, the underlying fundamentals of geometry scaling can be more broadly investigated through...

... differences: Abstract Low levels of inorganic phosphate are very effective at corrosion inhibition however, using this type of program under inappropriate water and plant conditions can result in severe scaling. This paper will discuss the basic selection / application criteria that need to be applied...