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Journal articles on the topic 'Pumping of slurries'

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1

Peters, Tony. "Pumping dilatant slurries." World Pumps 2006, no. 480 (2006): 36–37. http://dx.doi.org/10.1016/s0262-1762(06)71082-3.

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2

Shichuan Ou, Charlie G. Coble, and Richard P. Egg. "Pumping Characteristics of Chopped Sorghum Slurries." Transactions of the ASAE 30, no. 5 (1987): 1523–30. http://dx.doi.org/10.13031/2013.30597.

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3

Tiller, Frank M., Theodore Cleveland, and Rong Lu. "Pumping Slurries Forming Highly Compactible Cakes." Industrial & Engineering Chemistry Research 38, no. 3 (1999): 590–95. http://dx.doi.org/10.1021/ie980451g.

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4

Kuhalampi, Ari. "Pumping solutions for abrasive and corrosive slurries." World Pumps 2004, no. 453 (2004): 25–27. http://dx.doi.org/10.1016/s0262-1762(04)00226-3.

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5

Kariyama, Ibrahim Denka, Xiaodong Zhai, and Binxin Wu. "Physical and Rheological Properties of Animal Manure: A Review." Transactions of the ASABE 61, no. 3 (2018): 1113–20. http://dx.doi.org/10.13031/trans.12768.

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Abstract. This literature review was conducted on the physical and rheological properties of animal manure slurries and their applications. The review revealed the importance of these properties in the design of anaerobic treatment plants, pipe systems to transport slurries to treatment and storage units, and other applications and management of raw and treated slurries. The selection of pumping and mixing equipment and their power requirements, the flow behavior, mass, and heat transfer, the quality of mixing, pressure head loss, and other applications of manure slurries are affected by the p
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6

Roll, D. L., R. Himes, D. P. Ewert, and J. Doerksen. "Effects of Pumping Equipment on Sand-Laden Slurries." SPE Production Engineering 2, no. 04 (1987): 291–96. http://dx.doi.org/10.2118/15071-pa.

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7

Powers, Al, and Jim Handzel. "Pumping abrasive slurries — a challenge of pump design." World Pumps 2002, no. 431 (2002): 36–39. http://dx.doi.org/10.1016/s0262-1762(02)80203-6.

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8

Kuo, Kirsty A., and Hugh E. M. Hunt. "Isothermal pumping analysis for high-altitude tethered balloons." Royal Society Open Science 2, no. 6 (2015): 140468. http://dx.doi.org/10.1098/rsos.140468.

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High-altitude tethered balloons have potential applications in communications, surveillance, meteorological observations and climate engineering. To maintain balloon buoyancy, power fuel cells and perturb atmospheric conditions, fluids could be pumped from ground level to altitude using the tether as a hose. This paper examines the pumping requirements of such a delivery system. Cases considered include delivery of hydrogen, sulfur dioxide (SO 2 ) and powders as fluid-based slurries. Isothermal analysis is used to determine the variation of pressures and velocities along the pipe length. Resul
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9

Kasza, K. E., and M. M. Chen. "Improvement of the Performance of Solar Energy or Waste Heat Utilization Systems by Using Phase-Change Slurry as an Enhanced Heat-Transfer Storage Fluid." Journal of Solar Energy Engineering 107, no. 3 (1985): 229–36. http://dx.doi.org/10.1115/1.3267683.

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This paper is concerned with the benefits of using phase-change slurries as enhanced heat-transfer/storage working fluids in solar energy and waste heat utilization systems. Literature is cited to show that a slurry containing a phase-change material as the dispersed phase promises to have much higher heat-transfer coefficients than conventional single-phase working fluids. Because of the latent heat, the phase-change slurry also requires lower pumping rates and smaller storage tanks than single-phase fluids for the same energy content. These benefits are documented by comparisons of temperatu
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10

Sellgren, Anders, Robert Visintainer, John Furlan, and Václav Matoušek. "Pump and pipeline performance when pumping slurries with different particle gradings." Canadian Journal of Chemical Engineering 94, no. 6 (2016): 1025–31. http://dx.doi.org/10.1002/cjce.22489.

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11

Mohan, Omex, Vinoj Kurian, and Amit Kumar. "Comparison of Drag Reduction Characteristics During Hydro-Transport of Comminuted Wood Chips Through Pipelines." Journal of the ASABE 68, no. 2 (2025): 183–94. https://doi.org/10.13031/ja.16153.

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HighlightsFound evidence for drag reduction in comminuted wood chip slurry and quantified it.Fine wood chip slurries show flow behavior like agricultural residue slurries.Established upper and lower limits in the drag reduction regime for fine wood chip slurries.Identified three flow regimes in fine wood chip slurries, akin to pulp fiber and agri-residue slurries.Abstract. Pipeline hydro-transportation of forest residues helps in reducing the biomass feedstock's delivered cost compared to truck transport. This can subsequently help in establishing large-scale biorefineries. There is limited re
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12

Sauki, A., A. Azizi, Nur Hashimah Alias, Nurul Aimi Ghazali, T. A. T. Mohd, and M. N. M. Najmi. "Performance Evaluation of Agarwood Distillation Waste as Retarder for High Strength Oilwell Cement." Applied Mechanics and Materials 548-549 (April 2014): 101–5. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.101.

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Cement strength must be carefully maintained so that the cement is able to sustain formation stresses without failing. Such a mechanical failure in a cement sheath can cause a loss of annular isolation. A synthetic polymer cement retarder has been designed to provide extended pumping times for cement slurries, while having minimal effect on compressive strength development. However, it is difficult to select a retarder that can suit a wide range of field conditions. Fluid loss control can also be affected by the addition of a retarder, especially at high temperatures. Addition of retarder some
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13

Mamhobu Amadi, Opurum Amadi, and Ndubuisi Elizabeth Chinyerem. "Critical evaluation of effects of polymer concentrations on the set time and compressive strength of cement slurries." World Journal of Advanced Engineering Technology and Sciences 11, no. 2 (2024): 325–31. http://dx.doi.org/10.30574/wjaets.2024.11.2.0115.

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Thickening time and compressive strength of cement slurry are very critical parameters in well cementing. Thickening or pump time and compressive strength of cement slurries are greatly affected by the slurry weight and temperature. Conventional Lead slurries usually require extenders such as bentonite and some polymers to stabilize the slurry and minimize excessive free fluid. The low slurry weight of lead slurries usually give rise to long pumping or set time and low compressive strength. Some of the polymers also retard the setting of the cement slurry. Therefore, this study focuses on the
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14

Kut, Łukasz. "Opracowanie receptur zaczynów cementowych do uszczelniania otworów o podwyższonych temperaturach w rejonie Karpat." Nafta-Gaz 77, no. 3 (2021): 200–2017. http://dx.doi.org/10.18668/ng.2021.03.06.

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Works related to the drilling of a deep borehole must take into account the specific conditions at its bottom. This applies especially to high temperatures, exceeding 90–100°C, and pressures of 60–80 MPa. Such difficult downhole conditions have often posed many problems when developing appropriate compositions of cement slurries used for sealing columns of casing pipes. With each passing year, drilling companies make deeper and more complicated boreholes, more and more often exceeding 3000 m, which require the use of specially developed recipes of cement slurries when sealing the casing column
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15

Gahlot, V. K., V. Seshadri, and R. C. Malhotra. "Effect of Density, Size Distribution, and Concentration of Solid on the Characteristics of Centrifugal Pumps." Journal of Fluids Engineering 114, no. 3 (1992): 386–89. http://dx.doi.org/10.1115/1.2910042.

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Experimental data on the performance of the centrifugal pumps pumping mixtures of solids and water have been presented. The solids used were coal of density 1480 kg/m3 and zinc tailings of density 2850 kg/m3. Maximum size of particles was approximately 3 mm. Tests have been conducted with a rubber lined impeller pump and a metal impeller pump. Effects of solid properties (viz: density, size, and size distribution as well as concentration of solids) on the performance of the pumps have been studied. The measured performance of pumps is compared with the predictions based on the correlations ava
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16

Vasilyeva, Maria A. "Perspectives of Application of 3D Shape Memory Composite Materials for Peristaltic Transportation of Slurries." Key Engineering Materials 685 (February 2016): 291–94. http://dx.doi.org/10.4028/www.scientific.net/kem.685.291.

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This paper is devoted to improvement of application of a peristaltic transport of heavy high-viscosity materials using magnetically active material. The main problems that arise when pumping these substances are associated with their low mobility and high shear stress. In various countries of the world peristaltic pumps are increasingly used for this purpose. A fundamentally new approach to transportation of liquid and viscous media consists in using magnetic pumps. Heavy oil and highly concentrated slurry tailings mineral resources are non-conductive materials, and as a result, require the ac
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17

Rzepka, Marcin, and Miłosz Kędzierski. "Badania procesu żelowania zaczynów cementowych przeznaczonych do uszczelniania otworów przewiercających płytkie poziomy gazonośne." Nafta-Gaz 77, no. 4 (2021): 235–43. http://dx.doi.org/10.18668/ng.2021.04.03.

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The article presents issues related to the sealing slurry technology concerning gelling processes (i.e., static built-up of gel strength of cement slurries). Based on research conducted around the world, it can be concluded that the rate of gelling of the cement slurry has an important role in the process of preventing possible gas exhalations from the annular space. After the cement slurry is pumped into the borehole (especially in zones with shallow gas horizons), the so-called migration (exhalation) of the formation medium (i.e. uncontrolled outflow of e.g. gas from the annular space) may o
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18

Zaili, Zarin Syukri, Ahmad Anas Yusof, Nur Fathiah Mohd Nor, Mohd Hafidzal Mohd Hanafi, and Mohd Qadafie Ibrahim. "Characteristics of a Reciprocating Pump for Low-Cost Sustainable Water Hydraulic Technology Demonstrator." Applied Mechanics and Materials 699 (November 2014): 736–41. http://dx.doi.org/10.4028/www.scientific.net/amm.699.736.

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An investigation of water-based reciprocating triplex piston pump was conducted to propose a low cost solution for the substitution of the traditional oil hydraulics to water hydraulics. Triplex pumps used in this investigation as the water hydraulics require continuous pumping. These pumps are capable of handling a wide range of fluid types, including corrosive fluids, abrasive fluids, and slurries containing relatively large particulates. Thus, an evaluation of the triplex pump using a simple simulation process that focuses on the volumetric efficiency has been conducted in order to understa
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19

Akintola, Sarah A., Tolulope Kolajo, and Agbenu Obande. "Performance Evaluation of Delonix regia Sawdust as Cement Retarder in Oil and Gas Well." Advances in Research 25, no. 6 (2024): 152–65. http://dx.doi.org/10.9734/air/2024/v25i61188.

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Sawdust, a byproduct of wood exploitation and processing, poses environmental pollution risks if not managed appropriately. Its substantial carbon footprint can lead to pollution, habitat disruption, and fire hazards. However, repurposing sawdust as a chemical additive in cement slurry within the oil and gas industry offers an environmentally friendly solution. This practice aligns with sustainability goals, enhances cement slurry properties, promotes wellbore stability, and replaces more hazardous additives, thereby reducing environmental impact. This study is aimed at the production of a ret
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20

Martinelli, Antonio Eduardo, D. M. A. Melo, F. M. Lima, Ulisses Targino Bezerra, E. P. Marinho, and D. M. Henrique. "Addition of Polyurethane to Portland Cement." Materials Science Forum 498-499 (November 2005): 401–6. http://dx.doi.org/10.4028/www.scientific.net/msf.498-499.401.

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Portland cement is by far the most important binding material used in both civil construction and oil well cementing. However, especially in the latter application, its brittle nature impairs its ability to withstand dimensional changes due to thermal gradients (RT to approximately 200°C), typical of heavy-oil recovery operations. This often results in extensive cracking of the cement sheath and debonding of the cement-casing interface, which leads to loss of zonal isolation, gas migration and production of water and oil through the well annular. Portland-Polyurethane composites have been form
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21

Li, Jiajian, Erol Yilmaz, and Shuai Cao. "Influence of Solid Content, Cement/Tailings Ratio, and Curing Time on Rheology and Strength of Cemented Tailings Backfill." Minerals 10, no. 10 (2020): 922. http://dx.doi.org/10.3390/min10100922.

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Understanding the flow process of cemented tailings backfill (CTB) is important for successful pumping into underground stopes. This study examines the effects of solid content (SC), cement/tailings (c/t) ratio, and curing time (CT) on rheological and mechanical properties of CTB mixes. The slurry concentration of the mixes was 65, 67, and 69 wt. %, with c/t ratios ranging from 1:4 to 1:20. Unconfined compressive strength (UCS) tests were performed on hardened CTB mixes after curing 3, 7, and 28 days. The rheological properties of CTB slurries are mainly related to SC. The yield stress and vis
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22

Lahlou, N., H. Rachid, and M. T. Ouazzani. "Modeling Coupled Heat and Mass Transfer in Peristaltic Cylindrical Flow of Robertson-Stiff Fluid." International Journal of Applied Mechanics 11, no. 10 (2019): 1950092. http://dx.doi.org/10.1142/s1758825119500923.

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The Robertson–Stiff fluid (RS) is a yield-pseudo-plastic model which has been used to describe the rheological properties of drilling fluids, cement slurries and bentonite suspensions. Experimentally, several rheological data showed that this model provides more consistently accurate descriptions of the rheology of such fluids than other viscoplastic models. This result motivates us to study theoretically the peristaltic transport for this shear-thinning model and for other viscoplastic models in the presence of heat and mass transfer in a cylindrical tube. For long wavelength and low Reynolds
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23

Leiva, Williams, Norman Toro, Pedro Robles, Edelmira Gálvez, and Ricardo Ivan Jeldres. "Use of Multi-Anionic Sodium Tripolyphosphate to Enhance Dispersion of Concentrated Kaolin Slurries in Seawater." Metals 11, no. 7 (2021): 1085. http://dx.doi.org/10.3390/met11071085.

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This research aims to analyze the impact of sodium tripolyphosphate (STPP) as a rheological modifier of concentrated kaolin slurries in seawater at pH 8, which is characteristic of copper sulfide processing operations. The dispersion phenomenon was analyzed through chord length measurements using the focused beam reflectance measurement (FBRM) technique, complementing size distributions in unweighted and square-weighted modes. The reduction of the rheological properties was significant, decreasing from 231 Pa in a reagent-free environment to 80 Pa after the application of STPP. A frequency swe
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24

Davidson, Peter, Chris Burgoyne, Hugh Hunt, and Matt Causier. "Lifting options for stratospheric aerosol geoengineering: advantages of tethered balloon systems." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1974 (2012): 4263–300. http://dx.doi.org/10.1098/rsta.2011.0639.

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The Royal Society report ‘Geoengineering the Climate’ identified solar radiation management using albedo-enhancing aerosols injected into the stratosphere as the most affordable and effective option for geoengineering, but did not consider in any detail the options for delivery. This paper provides outline engineering analyses of the options, both for batch-delivery processes, following up on previous work for artillery shells, missiles, aircraft and free-flying balloons, as well as a more lengthy analysis of continuous-delivery systems that require a pipe connected to the ground and supported
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25

Semenenko, Ye V., Ye S. Lapshin, M. M. Liah, and S. V. Dziuba. "TECHNOLOGICAL PIPELINES CALCUCATION FEATURES FOR HIGH-VISION OIL PRODUCTS TRANSPORTATION." Metallurgicheskaya i gornorudnaya promyshlennost, №6, 2018, no. 6 (2018): 49–56. http://dx.doi.org/10.33101/s064567890.

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Purpose. Scientific basis substantiation for the technological calculation of main pipelines. Which are pumping high viscosity non-Newtonian liquids, taking into account the peculiarities behavior of the full Buckingham equation solution in various intervals of the values included in it. Methodology. The modern methods analysis for calculating rational parameters of the high viscosity non-Newtonian fluid viscosity transportation modes which made it possible to substantiate the specificity of the rheological characteristics of these liquids, taking into account the possibility of controlling th
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26

Medvedovski, Eugene, Gerardo Leal Mendoza, and Giovanny Vargas. "Influence of Boronizing on Steel Performance under Erosion-Abrasion-Corrosion Conditions Simulating Downhole Oil Production." Corrosion and Materials Degradation 2, no. 2 (2021): 293–324. http://dx.doi.org/10.3390/cmd2020016.

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Downhole heavy oil production and oil sand processing are associated with severe damage and failures of production equipment components, e.g., production tubing and pumping systems, due to erosion-corrosion resulting in processing losses, production downtime, high maintenance and replacement cost. Protective coatings (layers) on the production components mostly fabricated from low-alloy steels can be applied to minimize these problems. In the present work, the performance of hard boronized coating on carbon steel obtained through the thermal diffusion process and consisted of two iron boride l
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27

Medeiros, Pedro Samuel Gomes, Cleiton Rubens Formiga Barbosa, and Francisco De Assis Oliveira Fontes. "SINGLE-PHASE AND TWO-PHASE SECONDARY COOLANTS: SIMULATION AND EVALUATION OF THEIR THERMOPHYSICAL PROPERTIES." HOLOS 4 (September 26, 2011): 91. http://dx.doi.org/10.15628/holos.2011.540.

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This paper makes a comparative analysis of the thermophysical properties of ice slurry with conventional single-phase secondary fluids used in thermal storage cooling systems. The ice slurry is a two-phase fluid consisting of water, antifreeze and ice crystals. It is a new technology that has shown great energy potential. In addition to transporting energy as a heat transfer fluid, it has thermal storage properties due to the presence of ice, storing coolness by latent heat of fusion. The single-phase fluids analyzed are water-NaCl and water-propylene glycol solutions, which also operate as ca
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28

Troxler, Jessie E., Lauren A. Crain, Jonathan J. Stickel, et al. "Rheological properties of enzymatically hydrolyzed corn stover pretreated via deacetylation and mechanical refining." Journal of Rheology 69, no. 3 (2025): 315–27. https://doi.org/10.1122/8.0000922.

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Lignocellulosic biomass is a feedstock for fuels and chemicals that does not compete with food resources and has less contaminants than refuse-derived biomass feedstocks. To convert lignocellulosics to biofuels or value-added products, multiple processing steps are typically necessary. One method of producing biofuels from lignocellulosic biomass utilizes a deacetylation and mechanical refining pretreatment and an enzymatic hydrolysis reaction to produce fermentable sugars from cellulose and hemicellulose. The rheological properties of biomass, such as yield stress and plastic viscosity, chang
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29

Zanini, Nicola, Alessio Suman, Mattia Piovan, and Michele Pinelli. "Assessment of the derating methods for centrifugal pump performance handling non-Newtonian fluids." Journal of Physics: Conference Series 2648, no. 1 (2023): 012102. http://dx.doi.org/10.1088/1742-6596/2648/1/012102.

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Abstract Oil and Gas applications commonly require the displacement of a huge amount of processing fluids. In most cases, these fluids consist of solid rock particles transported by water, e.g. kaolin or bentonite powder, which show non-Newtonian behavior. For this kind of fluid positive displacement pumps are usually recommended, but where high flow rates have to be guaranteed, centrifugal pumps are installed. Since most of the manufacturers provided the performance curves only with water, choosing the appropriate centrifugal pump to handle mineral slurries may be very challenging. Since the
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30

Leong, Yee-Kwong. "Controlling the rheology of iron ore slurries and tailings with surface chemistry for enhanced beneficiation performance and output, reduced pumping cost and safer tailings storage in dam." Minerals Engineering 166 (June 2021): 106874. http://dx.doi.org/10.1016/j.mineng.2021.106874.

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31

Quilaqueo, Michelle, Minghai Gim-Krumm, René Ruby-Figueroa, Elizabeth Troncoso, and Humberto Estay. "Determination of Size Distribution of Precipitation Aggregates Using Non-Invasive Microscopy and Semiautomated Image Processing and Analysis." Minerals 9, no. 12 (2019): 724. http://dx.doi.org/10.3390/min9120724.

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Particle size distribution (PSD) determination is a typical practice for the characterization of the slurries generated in a precipitation plant. Furthermore, the precipitates generated in these processes form colloidal or aggregated suspensions. Nevertheless, the conventional methods used to estimate PSD (e.g., laser diffraction and/or a cyclosizer) have not been designed to measure particles that tend to aggregate or disaggregate, since they include external forces (e.g., centrifugal, agitation, pumping and sonication). These forces affect the true size of the aggregates formed in a unit ope
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32

Quezada, Gonzalo R., Norman Toro, R. S. Krishna, et al. "Experimental and Simulation Studies on Hematite Interaction with Na-Metasilicate Pentahydrate." Molecules 28, no. 8 (2023): 3629. http://dx.doi.org/10.3390/molecules28083629.

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Iron ore is a fundamental pillar in construction globally, however, its process is highly polluting and deposits are becoming less concentrated, making reusing or reprocessing its sources a sustainable solution to the current industry. A rheological analysis was performed to understand the effect of sodium metasilicate on the flow curves of concentrated pulps. The study was carried out in an Anton Paar MCR 102 rheometer, showing that, in a wide range of dosages, the reagent can reduce the yield stress of the slurries, which would result in lower energy costs for transporting the pulps by pumpi
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33

VASILYEVA, Maria Aleksandrovna. "Magnetic peristaltic pumps for stowing operations." NEWS of the Ural State Mining University 1, no. 1 (2020): 150–55. http://dx.doi.org/10.21440/2307-2091-2020-1-150-155.

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Relevance of the work. The use of laying the workings is intended to increase the safety of mining operations, namely, controlling mining pressure, reduce mineral loss during excavation, prevent the occurrence of underground fires, and reduce the risks of destruction of objects in residential areas. Methodology of the work. The article is devoted to the study of the possibility of applying the system of peristaltic transportation of pasty slurries using the energy of a traveling magnetic field to work on the laying of the goaf. Taking into account the features of the materials used as the basi
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34

Suleymanov, E. M., R. S. Ibrahimov, and Sh O. Bakhshaliyev. "U-tube effect in well cementing on the Absheron peninsula." Azerbaijan Oil Industry, no. 11 (November 15, 2024): 9–13. https://doi.org/10.37474/0365-8554/2024-11-9-13.

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He article states that based on the processing of field data, it was found that when drilling wells on the Apsheron Peninsula, the average densities of drilling fluids fluctuate significantly, and when cementing a well, the density of the cement slurry is higher than the density of the drilling fluids. Therefore, under certain conditions, the U-tube effect or free fall occurs – this is a phenomenon during cementing, which results in a temporary loss of control over the fluid velocity and pressure in the annular space. The free fall effect occurs when the cement slurry is pumped into a casing f
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35

Becerra, Deisy, Miguel Asuaje, Alexander Zambrano, and Nicolás Ratkovich. "Experimental and CFD modelling of a Progressive Cavity Pump using overset unstructured mesh." E3S Web of Conferences 321 (2021): 02014. http://dx.doi.org/10.1051/e3sconf/202132102014.

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A Progressive Cavity Pump (PCP) is widely used in industry as an artificial lift method because of its high efficiency during the pumping of high viscosity fluids and two-phase liquid-gas flow slurries. However, modelling PCP through Computational Fluid Dynamics (CFD) is quite complicated since it requires a meshing algorithm and is computationally expensive. Therefore, this study's main objective is to develop a CFD model capable of predicting a progressive cavity pump's behavior by implementing the Overset Mesh, which includes the relative motion between the rotor and the stator. Overset mes
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36

"Reliable pumping of paper slurries." World Pumps 1995, no. 340 (1995): 15. http://dx.doi.org/10.1016/0262-1762(95)90341-0.

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37

"Meeting the challenge of pumping phosphate slurries." World Pumps 1999, no. 388 (1999): 17–18. http://dx.doi.org/10.1016/s0262-1762(99)80625-7.

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38

Bakrač, Marija, Eduardo Guanaes, and Vitomir Dobrić. "GEOSYNTHETIC DEWATERING TUBES - BASIC WORKING PRINCIPLES AND USE FOR FLY ASH DISPOSAL VOLUME INCREASE." ZBORNIK RADOVA GEO-EXPO 2023, October 3, 2023, 139–44. http://dx.doi.org/10.35123/geo-expo_2023_14.

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The most common management practice for mining slurries (e.g. tailings, contaminated process byproducts, etc.) is pond storage. Alternatively, mine slurries can be managed by geosynthetic dewatering tubes. By pumping the conditioned slurry into a geosynthetic element the liquid and solids are separated. Due to the permeable dewatering fabric the water can drain through the system while the solid particles are retained inside the tube. The biggest economic benefit can be achieved if waste material is re-used for construction purposes. This is possible using geosynthetic dewatering tubes as the
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39

Zou, Qiang, Xu Chen, Shiming Zhong, Dan Yi, and Liankai Liu. "Performance experiment of ultra high temperature cementing slurry system." Frontiers in Materials 11 (April 24, 2024). http://dx.doi.org/10.3389/fmats.2024.1383286.

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Introduction: The escalating pursuit of oil and gas reserves in China has led to increasingly deep and ultra-deep well drilling, encountering extreme temperatures that challenge the heat resistance capabilities of cement slurries. This study addresses the critical need for high-performance cement slurries capable of withstanding ultra-high temperatures during drilling and completion operations.Methods: A novel ultrahigh temperature conventional density (UHTE) cement slurry was formulated by incorporating high-temperature-resistant additives, namely DRF-1S and DRH-2L. An indoor testing framewor
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40

Gao, Feng, Sheng Zhang, Junhui Zhang, Xuzhen He, Jianlong Zheng, and Daichao Sheng. "Upward migration of soil particles induced by the sloshing of slurries under cyclic load: experiments and theoretical explanation." Canadian Geotechnical Journal, January 17, 2025. https://doi.org/10.1139/cgj-2024-0324.

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Internal stability of subgrade soil under dynamic train loads plays an essential role in the serviceability of rail embankments. “Mud pumping”, the upward migration of fine particles and water from the subgrade, has been observed more often due to the increase of axle load and train speed. This paper presents a series of laboratory experiments to simulate mud pumping in rail embankments and provides a theoretical explanation. The test results show that the sloshing of slurries within a layered gravel-silt column under dynamic load causes the oscillation of excess pore pressure. The increase of
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41

Enany, Parviz, Oleksandr Shevchenko, and Carsten Drebenstedt. "Experimental Evaluation of Airlift Performance for Vertical Pumping of Water in Underground Mines." Mine Water and the Environment, August 14, 2021. http://dx.doi.org/10.1007/s10230-021-00807-w.

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AbstractThis paper presents experimental studies on the optimization of air–water flow in an airlift pump. Airlift pumps use compressed gas to verticall transport liquids and slurries. Due to the lack of theoretical equations for designing and predicting flow regimes, experimental investigations must be carried out to find the best condition to operate an airlift pump at high efficiency. We used a new air injection system and different submergence ratios to evaluate the output of a simple pump for vertical displacement of water in an underground mine. The tests were carried out in a new device
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42

Pelton, Ben, Derek Adam, Garrett Granier, William Turner, Diego Tellez, and John Willis. "Unconventional Bradenhead Cementing in the Delaware Basin Case History." SPE Drilling & Completion, October 1, 2022, 1–10. http://dx.doi.org/10.2118/208756-pa.

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Summary This Delaware Basin case history describes a bradenhead cementing method that improves zonal isolation and top of cement (TOC). Common solutions for cementing depleted formations include stage tools, low-density slurries, and reverse circulation. For this bradenhead method, cement is pumped through the wellhead valves and down the annulus to a target loss zone. Field data, laboratory data, and the engineering model support the improvement bradenhead cementing provided across depleted formations. The depleted Brushy Canyon Formation serves as an injection interval for a two-stage braden
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Sivaranjani, S., and A. Kavitha. "Impact of First Order Slip Condition on Peristaltic Transport of a Pseudoplastic Fluid Under MHD Effect Bounded by Permeable Walls with Suction and Injection." Contemporary Mathematics, February 14, 2025, 1091–109. https://doi.org/10.37256/cm.6120255786.

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This research investigates the impact of first-order slip conditions on the peristaltic flow of a pseudoplastic fluid in the presence of a magnetic field, taking into the effects of suction and injection. Pseudoplastic fluids, which are shear-thinning, undergo a reduction in viscosity as shear rate increases, as opposed to Newtonian fluids, which maintain a constant viscosity regardless of applied shear stress. This characteristic is commonly found in fluids such as blood, polymer solutions, and certain industrial slurries, making them well-suited for applications where efficient flow under st
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