Wear of hydrotransport lines in Athabasca oil sands

Parent, L.; Li, D.Y.

doi:10.1016/j.wear.2013.01.039

Cited by 29 publications

(8 citation statements)

References 2 publications

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“…According to Henry's law, dissolved oxygen in the slurry is proportional to the pressure applied to the slurry which decreases with increase in elevation (distance) of the pipe from the pump exit. It has indeed been observed that wear in oil sands hydrotransport pipelines decreases with pipe elevation and wear rate is much higher in the high pressure system (2240-2600 kPa) than in the lower pressure system (480-600 kPa) [16]. It was also noticed that wear patterns in the pipelines varies depending on the pipe length and elevation.…”

Section: Introductionmentioning

confidence: 92%

The Effect of Dissolved Oxygen in Slurry on Erosion–Corrosion of En30B Steel

et al. 2017

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Synergistic effect between corrosion and wear has been widely recognized in many tribocorrosion systems. In most wet application conditions, dissolved oxygen (DO) is a controlling factor to the dynamics of corrosion process and is therefore expected to have significant impact on the tribo-corrosion performance of materials. In this study, the effect of DO (0 -24 ppm) on erosion-corrosion behaviour of En30B low alloy steel has been investigated using a slurry pot erosion-corrosion test apparatus in a slurry containing 35wt% silica sand and 3.5% NaCl solution at 30°C and 45°C. The synergistic effect and its contributing components, i.e., erosionenhanced corrosion and corrosion-enhanced erosion, have been measured/analysed. The total erosion-corrosion loss and synergy of the En30B steel increases with DO in the slurry, initially rapidly at DO levels below ~5 ppm and then less rapidly at the higher DO levels. The synergistic effect is mainly due to corrosion-enhanced erosion with negligible contributions from erosionenhanced corrosion. Temperature has a significant effect on the total erosion-corrosion loss. Total erosion-corrosion was 34% higher at 45°C (in still air) than at 30°C. Mechanisms for the observed phenomena have been discussed based on the concept of corrosion-accelerated microcrack propagation.

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Section: Introductionmentioning

confidence: 92%

The Effect of Dissolved Oxygen in Slurry on Erosion–Corrosion of En30B Steel

et al. 2017

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“…In mining and mineral production, three types of slurries are generated and processed: ore pulp (slurry of crushed and ground minerals), concentrates, and tailings; all of them contain abrasive particles of different nature and sizes and may be corrosive. Hydrotransport is considered one of the most energy and cost‐efficient routes for transporting of large volumes of raw and waste materials in mining and mineral production, specifically for conveying slurries within the mining site and to remove deposits 3,4 . For example, Parent and Li 4 described hydrotransporting of oil sand water‐based slurries and tailings containing mineral salts where several large (>700 mm diameter) tubes carried 5000 t/h each from the ore preparation plants to the extraction plants and then carried the tailings sand for disposal once the bitumen was extracted to the sand dumps or the tailing ponds.…”

Section: General Applications and Challenging In Mineral And Oil And ...mentioning

confidence: 99%

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

Medvedovski¹

2022

Int J Applied Ceramic Tech

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The applications of advanced ceramics, composites and coatings in mineral, mining, fuel production, and processing are reviewed. The materials include oxide and non‐oxide ceramics (specifically SiC‐based), ceramic–ceramic, and ceramic–metal composites, coatings on metallic components where functional application properties can be achieved. Some principles of materials selection, specifically for erosion wear and corrosion applications, and manufacturing are considered. The examples of the successful development and processing of ceramics, coatings, and composites with manageable structures and phase compositions, in the erosion‐related applications, particularly conducted by the author, are discussed and reviewed. Specifically, industrially employed types of ceramics and processing routes were focused on the considered applications. Particular demands for advanced materials with high reliability and complex shapes or for protective coatings on complex shape steel components and long tubing with inner surface protection require novel and optimized processing. The factors affecting erosion and erosion–corrosion resistance and the paths for the erosion resistance enhancement of ceramic and coating materials are considered. Ceramic components design, technology, and installation features are reviewed.

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“…In mining and mineral processing, dredging, and Canadian oil sands extraction, however, slurry pipeline transport is both essential and critical, and as such, billions of dollars are invested annually in pipeline infrastructure maintenance and reliability, improvements in online monitoring and instrumentation, and in process optimization. Published works in each of these areas are prevalent: for example, Schaan et al [1] and Parent and Li [2] describe the impacts of abrasive wear and corrosion on pipeline reliability. In the area of online monitoring and instrumentation, recent publications describe noninvasive measurements of solids accumulation, and stationary bed formation, [3] inline slurry flow measurements using artificial intelligence tomography, [4] and high-concentration measurements using novel 2D gamma-ray tomography.…”

Section: Introductionmentioning

confidence: 99%

A multispecies 1D concentration distribution model for coarse‐particle slurries

et al. 2022

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Coarse-particle (settling) slurry pipelines are key process units in many industries. In Canada's oil sands operations, such pipelines represent hundreds of millions of dollars of infrastructure investment and transport thousands of tonnes of solids every hour. The ability to determine key design/operating parameters of a settling slurry, such as frictional pressure gradient and deposition velocity, is dependent on the accuracy of the concentration distribution model used to determine the local concentration of coarse solids as a function of vertical position within the pipe. Accurate predictions of the concentration profile are also required for physics-based models of particle-impact erosion in slurry pipelines. In this study, an improved concentration distribution model was developed. The classic Schmidt-Rouse turbulent diffusion equation forms the basis for the model. The improvements made here include the use of a more suitable, high-concentration hindered settling velocity correlation, and a simple semi-empirical correlation for the particle diffusivity, which is shown to be dependent only upon the terminal particle settling velocity and the Kolmogorov turbulent velocity scale. The model is applicable to slurries with broad size distributions and/or species with different densities. The performance of the model is tested against numerous slurry flow conditions, including particles from 70 μm to 8 mm in diameter, pipe diameters of 76 mm ≤ D ≤ 500 mm, and in situ solids volume concentrations from 0.10 to 0.45. The concentration distribution predictions are shown to be in excellent agreement with the measurements.

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Wear of hydrotransport lines in Athabasca oil sands

Cited by 29 publications

References 2 publications

The Effect of Dissolved Oxygen in Slurry on Erosion–Corrosion of En30B Steel

The Effect of Dissolved Oxygen in Slurry on Erosion–Corrosion of En30B Steel

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

A multispecies 1D concentration distribution model for coarse‐particle slurries

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