Gotowe bibliografie tematyczne / Silica Flour

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Gotowa bibliografia na temat „Silica Flour”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Silica Flour"

Yikarebogha, Y., K. C. Igwilo, N. Uwaezuoke, J. U. Obibuike, and K. K. Ihekoronye. "Performance Evaluation of Periwinkle Shell Powder as Alternative to Silica Flour in High Temperature Well Cementing Operation." International Journal of Engineering and Advanced Technology Studies 13, no. 1 (2025): 44–56. https://doi.org/10.37745/ijeats.13/vol13n14456.

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The effect of high temperature on cement slurry is a problem in the oil and gas drilling industry. Over the years, silica flour was used to prevent the strength of cement that results from high temperature effect. But the silica flour is imported and not environmentally friendly. Hence, the need for local material that can serve as alternative becomes imperative. Periwinkle shell (Tympanostomus fuscatus) was tested in the laboratory to determine its potential use in place of the synthetic silica flour. The shell was pulverised, calcinated, and subjected to laboratory test following the require

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Wang, Junjie, and Engui Liu. "Physicomechanical Properties of Gypsum with Mineral Additions at Elevated Temperatures." Coatings 13, no. 12 (2023): 2091. http://dx.doi.org/10.3390/coatings13122091.

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Gypsum, from either nature or industrial by-products, can be a lower-cost and cleaner alternative binder to Portland cement used in construction projects, such as affordable housing in developing countries. Although various building products have successfully used gypsum as the binder, some drawbacks of this material have still been claimed, for example, in the aspects of mechanical strength and some other physical properties. Using mineral additions to gypsum seems to be a possible solution to create composite gypsum with improved properties. This work has investigated the possibility of two

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Bezerra, U. T., A. E. Martinelli, D. M. A. Melo, M. A. F. Melo, and V. G. Oliveira. "The strength retrogression of special class Portland oilwell cement." Cerâmica 57, no. 342 (2011): 150–54. http://dx.doi.org/10.1590/s0366-69132011000200004.

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Temperatures in excess of 110 ºC result in phase transformations of cement, significantly decreasing its compressive strength. This effect is referred to as strength retrogression. It is frequently observed in cement sheaths of heavy oil wells submitted to steam injection. The present study evaluated the mechanical behavior of Special Class Portland Oilwell Cement (SCPOC) slurries containing silica flour to prevent retrogression. A factorial statistical planning was used to assess the effect of the main variables on the mechanical behavior of cement slurries, i.e., mechanical testing temperatu

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L.J.Bhagia, L. J. Bhagia, S. L. Dodia S.L.Dodia, and M. I. Shaikh M.I. Shaikh. "Silica Dust Exposure and Efficacy of Dust Control System in Small Silica Flour Mills, India." Global Journal For Research Analysis 3, no. 4 (2012): 28–31. http://dx.doi.org/10.15373/22778160/apr2014/83.

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Grabowski, Eliza, and J. E. Gillott. "Modification of engineering behaviour of thermal cement blends containing silica fume and silica flour by replacing flour with silica sand." Cement and Concrete Research 19, no. 4 (1989): 499–508. http://dx.doi.org/10.1016/0008-8846(89)90001-x.

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Roli, Amuah Freda, Ogbonna Joel, and Anthony John. "Effect of Silica Flour and Potasium Chloride as Additives in the Rhelogical Properties of High Temperature High Pressure Gas Well Cement Slurry." Journal of Engineering Research and Reports 25, no. 4 (2023): 66–78. http://dx.doi.org/10.9734/jerr/2023/v25i4903.

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This study explores the effects of silica flour and potassium chloride on the rheological properties of high temperature and pressure gas wells. Seven different materials were used as additives which includes: fresh water, dyckerhoff, silica flour, antifoam, extender, fluid loss, dispersant, retarder, anti-settling agent, gas control agent, dry viscosifier, potassium chloride and accelerator. Four recipes were prepared using these additives in different mixtures. Recipe four has all the additives including silica flour and potassium chloride. A series of flow tests was performed using an advan

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Yao, Rong, Dong Ling Peng, and Hong Yuan Huang. "Compression Test of Lining of Tunnel Fireproof Concretes." Advanced Materials Research 243-249 (May 2011): 3381–84. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.3381.

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The polypropylene, the silica flour and the carbon fiber will be considered to be added into the concrete when test, the orthogonal theory is used in this test, 32 groups samples were made, the heater was put for heating by choosing the RABT curve, the test result was analyzed, the ratio of compressive strength loss is changed with the meter of the polypropylene textile fiber, the silica flour and the carbon fiber, there is a optimality Proportion when the ratio of compressive strength loss is low.

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Rianna, Martha, Regina Aperita Lusiana Harahap, Novira Ananda, et al. "Experimental investigation on ceramic materials of wood flour and bentonite." Journal of Physics: Conference Series 2733, no. 1 (2024): 012016. http://dx.doi.org/10.1088/1742-6596/2733/1/012016.

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Abstract In this research, the solid-state reaction method obtained experimental investigation on wood flour and bentonite ceramic materials. The bentonite of 3 g and the wood flour of 7 g were mixed in a glass beaker and then activated at a temperature of 500°C for 2 hours. Next, the powder was ground using ball milling at 500 rpm for 30 minutes. Characterization uses XRD, SEM with mapping, and Fourier transforms infrared. Results show that the XRD confirmed having silica or SiO2 peaks in crystal structure and composition. The obtained morphological properties of the material are almost cubic

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Закладной, Г. А. "Grain and silica dioxide." Food processing industry, no. 5 (April 13, 2024): 48–50. http://dx.doi.org/10.52653/ppi.2024.5.5.013.

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Зерно является национальным достоянием Российской Федерации, одним из основных факторов устойчивости ее экономики, поэтому должны быть обеспечены качество и безопасность пищевых продуктов. Наибольшую безопасность представляет органическая, то есть экологически чистая продукция. Во время хранения зерно постоянно подвергается нападению насекомых и клещей – вредителей хлебных запасов. Зерно, загрязненное насекомыми при их суммарной плотности более 15 экземпляров на 1 кг, опасно для употребления в пищу. Оно ядовито. Такое зерно выходит из статуса «органическая продукция». Традиционные синтетически

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Manivannan, Selladurai, and Bhadriraju Subramanyam. "Contact Efficacy of Two Amorphous Silica Powders against the Red Flour Beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)." Insects 14, no. 11 (2023): 833. http://dx.doi.org/10.3390/insects14110833.

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The contact efficacy of two amorphous silica powders 1 and 2 procured from Imery’s chemicals, Lompoc, CA, USA, were evaluated against the red flour beetle, Tribolium castaneum (Herbst). The efficacy of the silica two powders was evaluated by exposing 10 adults of T. castaneum to twelve different concentrations of silica powder 1 and 2 for 12, 24, 36, and 48 h. Mortality assessments were made after 14 d, and data on adult progeny production were recorded at 42 d. Complete mortality of T. castaneum was observed when adults were exposed for 36 h to concentrations of 1.5 to 5 g/m2 of silica powder

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Rozprawy doktorskie na temat "Silica Flour"

Ouellet, Samuel. "Lumière sur le transfert d’énergie résonant entre métal et fluorophores : à la recherche des photons perdus." Doctoral thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/39750.

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Titre de l'écran-titre (visionné le 9 juillet 2020)<br>Thèse en cotutelle : Université Laval, Québec, Canada, Philosophiae doctor (Ph. D.) et Université de technologie de Troyes, Troyes, France<br>La nano-optique ouvre des portes à de nouvelles technologies afin de développer de nouveaux moyens de détections. L’avantage d’utiliser ce type de technologie provient de la taille nanométrique où les propriétés de la matière sont différentes de celle à l’état macroscopique. Notamment, lors de l’excitation de nanoparticules métalliques par des photons, il y a une oscillation harmonique du nuage élect

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Walter, Philippe. "Etude du comportement du fluor lors des interactions silice-solutions aqueuses : applications archéologiques." Toulouse 3, 1993. http://www.theses.fr/1993TOU30025.

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Lorsqu'un outil est fabrique par l'homme, une surface neuve, avec la composition et la structure du cur du materiau, apparait. Apres usage, cet objet, va sejourner dans les sediments jusqu'a sa decouverte par un archeologue. Durant cette periode, une alteration s'est developpee, rarement sous la forme d'une erosion ou d'une dissolution, plus souvent comme une lente evolution de la composition due a la diffusion d'elements chimiques. Ainsi, les migrations d'elements legers mobiles sont souvent liees a la duree d'enfouissement du mineral dans le sol et la mesure de leurs profils de diffusion peu

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Refifi, Jihen. "Extraction de la silice à partir d'un composé H₂SiF₆ pour la fabrication d'un bioverre." Thesis, Rennes 1, 2020. http://www.theses.fr/2020REN1S066.

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L'acide fluorosilicique (FSA) est la principale eau usée générée par la fabrication d'acide phosphorique en Tunisie. Actuellement, Une énorme quantité de cet acide est générée comme sous-produit de l'industrie des engrais phosphatés. En plus des pertes économiques, le rejet de cette industrie dans la mer, entraine également un véritable danger dans le cadre écologique pour le domaine marin. Par conséquent, notre attention s'est portée sur le développement d'un procédé de traitement par extraction de la silice de ces déchets fluorés, qui peut être utilisée dans plusieurs applications intéressan

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Ma, Jun-Han. "Synthèse asymétrique de nοuveaux cοmpοsés fluοrés et silylés et de sila-hétérοcycles". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMR092.

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D'une part, les composés organosiliciques sont des intermédiaires de synthèse particulièrement précieux en chimie organique, car ils interviennent dans diverses transformations ultérieures. Par ailleurs, les molécules contenant du silicium suscitent un intérêt croissant dans les domaines de la chimie pharmaceutique et des sciences des matériaux. D'autre part, la réaction d'hydrosilylation d'une oléfine catalysée par un métal de transition en présence d'hydrosilanes constitue une méthode directe et économiquement avantageuse pour synthétiser des organosilanes à partir de matériaux disponibles.

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Bernier, Martin. "Inscription de réseaux de bragg à fibre optique à l'aide d'impulsions brèves et applications aux lasers à fibre." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27475/27475.pdf.

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Semenkoff, Mathilde. "Contribution à l'étude des amplificateurs optiques à fibre pour les systèmes de transmission multi-longueurs d'onde." Saint-Etienne, 1995. http://www.theses.fr/1995STET4003.

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Cette thèse concerne l'étude des amplificateurs optiques à fibre dopée pour les systèmes de transmission sur longue distance utilisant la technique du multiplexage en longueur d'onde. Une telle application présente des exigences sévères sur la réponse des amplificateurs : tous les canaux doivent être amplifiés approximativement du même facteur et conserver le même rapport signal-a-bruit s/b en sortie de l'amplificateur. Une première partie de ce travail a concerné l'étude du problème technologique majeur des amplificateurs à fibre en verre fluoré à savoir celui de la connexion entre fibre en v

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Nečinová, Lucie. "Dům s pečovatelskou službou." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225873.

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It handles about a „Retirement home“ named project (3 floors, with a partial basement, building on a slight slope). The base structure is of reinforced concrete strips. The walls of the basement are made with the application of hidden formwork type system BEST. The bearing and non-bearing walls are of majority used silicate bricks. The staircase structure consists of monolithic reinforced concrete 2x brokem slab. For ceilings slab panels, are used Spiroll. The building is finished with a single layered flat roof.

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Lee, Yoon Hwan. "Foaming of Wood Flour/Polyolefin/Layered Silicate Composites." Thesis, 2008. http://hdl.handle.net/1807/16763.

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This research provides a new insight on various properties, such as rheological, mechanical, and flame-retarding properties, as well as the foaming behaviors of wood flour /plastic composites (WPCs) through the addition of a small amount of nanosized clay particles. Although WPCs have replaced natural wood in many applications, their industrial usage has been limited because of their weak modulus, low impact strength, low screwing-ability/nailing-ability, high density compared to natural wood, as well as their flammability compared to plastics. In this context, the incorporation of nanoclay an

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Książki na temat "Silica Flour"

Vaughan, David. 5. Minerals and the living world. Oxford University Press, 2014. http://dx.doi.org/10.1093/actrade/9780199682843.003.0005.

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‘Minerals and the living world’ considers various mineral–microbe interactions, biomineralization, and how minerals interact with the human body and human health. Biomineralization is the process where living organisms produce minerals such as calcite, apatite, and silica. An example is the unicellular, ocean-living radiolaria that have complex silica skeletons. After death their skeletal remains sink to the ocean floor and can be seen preserved in cherts and flints. Human biominerals can be divided into those which are an essential part of the bodies’ systems, such as hydroxylapatite found in

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French, John D. Lula and His Politics of Cunning. University of North Carolina Press, 2020. http://dx.doi.org/10.5149/northcarolina/9781469655765.001.0001.

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Known around the world simply as Lula, Luis Inácio Lula da Silva was born in 1945 to illiterate parents who migrated to industrializing São Paulo. He learned to read at ten years of age, left school at fourteen, became a skilled metalworker, rose to union leadership, helped end a military dictatorship—and in 2003 became the thirty-fifth president of Brazil. During his administration, Lula led his country through reforms that lifted tens of millions out of poverty. Here, John D. French, one of the foremost historians of Brazil, provides the first critical biography of the leader whom even his p

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Części książek na temat "Silica Flour"

Gooch, Jan W. "Silica Flour." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10637.

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"Silica flour." In Encyclopedic Dictionary of Polymers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_10441.

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"La Fleur." In Sila. Presses de l'Université du Québec, 2020. http://dx.doi.org/10.1515/9782760553736-024.

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Demourgues, Alain. "Formulation des composés siliconés et fluorés." In Formulation des composés siliconés et fluorés. EDP Sciences, 2005. https://doi.org/10.3917/edp.lante.2005.01.0103.

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De nombreux composés minéraux sont utilisés en tant que renfort dans des matrices organiques ou polymères. Ainsi la compatibilité de ces charges minérales avec des milieux organiques constitue un véritable challenge tant du point de vue académique que des développements industriels. Dans ce contexte l’élément fluor présente des caractéristiques uniques et bien adaptées à cette application. En effet la forte électronégativité du fluor ainsi que la dureté importante de l’ion F - , lui conférant son caractère de base dure et faible notamment vis-à-vis des groupements hydroxyle, constituent des pr

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"Characterization and Assessment of Iron Ore Tailings as Raw Materials for Construction Industries." In Recycled Waste Materials in Concrete Construction. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8325-7.ch001.

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This chapter deals with the characterization and assessment of iron ore tailings (IOT) as raw materials for the construction industry. This chapter specifies the production process of iron ore and generation of waste material followed by listing the nature and prospective issues of IOT. Methods of IOT characterization are explained through five elements, which are chemical composition, leaching behavior, thermal stability, mineralogical characterization, and morphology. The experimental program and research results of this study are explained in six subtitles, namely chemical composition, leac

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Corrêa, Iran Carlos Stalliviere. "Outros Minerais Autigênicos no Ambiente Marinho." In Recursos Minerais Marinhos. Sociedade Brasileira de Geofísica - SBGf, 2023. http://dx.doi.org/10.22564/sbgfbook.cad5.2023.cap13.

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Existem muitos tipos e formas de depósitos minerais autigênicos no fundo marinho, alguns em maior abundância e, em alguns casos, potencialmente econômicos. Entre este encontram-se os depósitos ferromanganesíferos, fosforíticos, barita marinha e minerais silicatados autigênicos. Aqui serão descritos alguns dos demais minerais autigênicos de importância nos sedimentos do fundo oceânico, tais como glauconita, francolita, zeolita/filipsita, pirita, calcita/aragonita e argilominerais. As zeolitas e argilas mais abundantes, como a esmectita, se formam principalmente a partir da alteração diagenética

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Alexander, Earl B., Roger G. Coleman, Todd Keeler-Wolfe, and Susan P. Harrison. "Nature of Ultramafics." In Serpentine Geoecology of Western North America. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195165081.003.0005.

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The earth is divided into three layers: the crust, the mantle, and the core. There are two principle regions within the crust: continents and ocean basins. The rocks that make up these layers differ from one another in chemical composition and density. The mantle is composed of dense ultramafic rocks, rich in magnesium-iron silicate minerals such as olivine and pyroxene. Ultramafic rock is the main source of serpentine soil in the continental crust. Most of the lighter crustal rocks are made up of silicate minerals that are enriched in the lighter elements sodium, calcium, and potassium, which

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Bentley, Peter J. "A Computer Changed My Life." In Digitized. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199693795.003.0012.

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Our world is digitized. Thanks to pioneers such as Turing, Shannon, and von Neumann, we have the amazing technologies of today. We have strong mathematical foundations for remarkable silicon machines that run amazing software. We have connections to everyone in the world through easy-to- use interfaces. We even have intelligent machines that help us in ways we could never have dreamed. The journey has only just begun. Every year new pioneers exploit the technologies of computer science for startling and imaginative applications. Artists and musicians use computers to entertain us, biologists u

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Berner, Robert A. "Processes of the Long-Term Carbon Cycle: Organic Matter and Carbonate Burial and Weathering." In The Phanerozoic Carbon Cycle. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195173338.003.0005.

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The organic subcycle of the long-term carbon cycle, where organic matter burial and weathering are involved, constitutes the major control on the evolution of atmospheric oxygen. It is also important as a secondary factor affecting atmospheric CO2. Thus, it is important to better understand the processes whereby organic matter is buried in sediments and oxidized upon subsequent exposure to weathering during uplift onto the continents. This is especially true of the Paleozoic rise of land plants, which had a large effect on atmospheric CO2 because of increased global organic burial due to the a

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Slack, John F., Terry W. Offield, Laurel G. Woodruff, and Wayne C. Shanks. "Geology and Geochemistry of Besshi-Type Massive Sulfide Deposits of the Vermont Copper Belt." In Part I. Proterozoic Iron and Zinc Deposits of the Adirondack Mountains of New York and the New Jersey Highlands Part II. Environmental Geochemistry and Mining History of Massive Sulfide Deposits in the Vermont Copper Belt. Society of Economic Geologists, 2001. http://dx.doi.org/10.5382/gb.35.15.

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Abstract Massive sulfide deposits of the Vermont copper belt yielded approximately 3.6 Mt of ore during intermittent production from 1793 to 1958. The deposits consist of stratabound and generally stratiform pyrrhotite, chalcopyrite, and minor sphalerite and pyrite within metasedimentary rocks and minor mafic metavolcanic rocks of Silurian to Early Devonian age. At the largest deposits (Elizabeth, Ely, Pike Hill), massive sulfides are generally associated with metabasaltic amphibolite. The deposits are structurally complex, and have been deformed together with their host rocks during two stage

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Streszczenia konferencji na temat "Silica Flour"

Løe, David, Michael Chusid, and Steven H. Miller. "Densify Faster, Densify Cleaner, Densify Greener: Enhancing Polished Concrete Floors." In Paint and Coatings Expo (PACE) 2010. SSPC, 2010. https://doi.org/10.5006/s2010-00029.

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Summary Specifying polished concrete floors can reduce a project’s material- and energy-consumption in both new construction and remodels. As a high-performance, low-maintenance floor, it is sustainable throughout its lifecycle. The only gap in its green profile has been the chemistry used to densify concrete in preparation for polishing. New, less caustic colloidal silica-based densifiers solve this problem, as they are safer for workers and less burdensome on the environment. Their use can also help contain costs. Polished concrete’s growing popularity stems from its aesthetic options, compe

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Yuan, Zhiquan, Bohan Li, Warren Jin, et al. "High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fth1d.2.

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A hybrid-integrated visible laser source is demonstrated using the photogalvanic effect. Self-injection locking of a 1560 nm semiconductor laser to a high-Q Si3N4 resonator generates high-coherence 780 nm emission (4 Hz2/Hz frequency noise floor).

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Flounders, Emer C., and Marshall K. Judges. "Corrosion Condition Evaluation of Reinforced Concrete Tanks in the National Aquarium in Baltimore." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94284.

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Abstract Two oval shaped reinforced concrete tanks built one over the other, exhibited significant concrete damage in addition to cracking. The annular space between the walls of the tanks are filled with man made sea water for marine life habitation. Cracks were observed on the walls and the floor slabs. It was suspected that the cracks may be active and that a change in width would occur over time, allowing access of chloride saturated sea water to the reinforcing steel. A detailed field survey was performed to evaluate the condition of the tanks. Select cracks were monitored to determine wh

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Callahan, P., F. Zhang, A. Martell, A. Horner, and H. Huang. "Injection Experiments in Sand and Silica Flour Mixtures." In GeoCongress 2012. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412121.230.

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Yikarebogha, Y., K. C. Igwilo, N. Uwaezuoke, and J. U. Obibuike. "Improving Cement Sheet Contraction and Strength Retrogression for High Temperature Well Cementing Using Local Material." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/217091-ms.

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Abstract Cement sheet contraction and strength retrogression associated with high temperature well cementing has been prevented in the industry over the years with the use of silica flour. Due to the difficulty in sourcing the silica flour, Tympanotonus fuscatus commonly known as "Periwinkle shell" was investigated as an alternative. Elemental and Oxides characterization were carried out and periwinkle shell powder contains CaO – 69.54%, SiO2 – 16.96%, Al2O3 – 12.06%. API standard procedures were employed throughout the laboratory measurements to determine compressive strength using periwinkle

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Aften, C. W. "Clay Stabilizers Performance in a Comprehensive Matrix of Bentonite and Silica Flour." In SPE Western Regional Meeting. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/190091-ms.

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Jadhav, Rahul, and Thomas Pisklak. "Liquid Strength Retrogression Control Additive." In SPE/IADC Middle East Drilling Technology Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/202104-ms.

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Abstract To mitigate strength retrogression at temperatures, higher than 230°F, well cement designs typically include strength retrogression control additives (SRCAs). Solid siliceous materials (e.g., silica flour, fume, and sized-sands) are commonly used SRCAs that are incorporated into cements using dry-blending techniques. This study highlights liquid silica compositions as alternative SRCAs to dry-blended silica for high-temperature cementing. Liquid additives can be managed easily, delivered accurately, and offer a reduced on-site footprint, thus making them particularly advantageous for

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Suhadi, Elena, Annisa Sylviana, Firman Kurniawansyah, et al. "Preparation of Sulfonated SiO<sub>2 </sub>Catalyst from Geothermal Sludge Waste for Sago Flour Hydrolysis." In 4th International Seminar on Fundamental and Application of Chemical Engineering. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-8mzrwm.

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Catalyst is a substance that is widely used in chemical reactions to obtain certain products. This study has been focusing on preparing and employing solid catalyst derived from geothermal sludge (GS) as waste material from Dieng Geothermal Power Plant (PLTPB) activity. The methodology of catalyst preparation was extraction of silica from the sludge by alkali solution, followed by gelling formation and acidification with sulfuric acid solution. The prepared catalyst was then applied in hydrolysis reaction to convert sago flour into glucose.Catalyst properties were assessed in term of morpholog

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Corina, Anisa Noor, Nils van der Tuuk Opedal, Torbjørn Vrålstad, and Sigbjørn Sangesland. "Cement Plug Sealing Studies of Silica Cement Systems." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95928.

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Abstract A cement plug is widely applied for permanent abandonment phase to provide long-term zonal isolation against fluid flow. Maintaining cement plug integrity is a challenging task, and loss in cement sealing poses risks to the surrounding environment and surface safety. It is well-known that the cement performance is affected by cement material and downhole conditions. Nevertheless, investigations linking these influencing factors with the sealing of cement plugs are still limited, especially with the lack of proper equipment in the past. In the present work, a small-scale laboratory set

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Skorpa, Ragnhild, Blandine Feneuil, Toshi Sugama, and Tatiana Pyatina. "Cementitious Composites for Supercritical Geothermal Well Applications." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-107301.

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Abstract In the transition from fossil fuels to sustainable, renewable energy sources, development of geothermal energies sources provides an important contribution to ensure the green shift. Per today, most geothermal wells operate at a temperature range of 150–300 °C, but in order to increase power production, a transition to more supercritical conditions (∼500 °C) is needed. It is generally accepted that Ordinary Portland Cement (OPC) is not suitable for supercritical wells. In this paper we report mechanical properties and pressure cycling-test (function tests) results of two alternative C

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Raporty organizacyjne na temat "Silica Flour"

Walker, J., D. Daffern, and D. Emer. An optimum silica flour-bentonite mixture for an engineered barrier. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5871976.

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