R. M. Beirute, Raymond W. Flumerfelt,
Abstract This paper evaluates the Robertson-Stiff rheological model for cement slurries and drilling muds. The model is compared with the Herschel-Bulkley model and is found to be an improved model for cement slurries. The Robertson-Stiff equations for volumetric flow rates in narrow annuli and tubes are shown to be limited to fluids with no yield stress. This paper develops more general equations that include the Robertson-Stiff results as special cases. Introduction In a recent paper, Robertson ...
Tópico(s): Grouting, Rheology, and Soil Mechanics
1977 - Society of Petroleum Engineers | Society of Petroleum Engineers Journal
The expansive and shrinkage characteristics of oilwell cements under actual well conditions of temperature and pressure have been measured by a highly sensitive device especially developed for the purpose. In tests using the device it was learned that some cements may experience an initial shrinkage during the first few hours after the cement has set. Introduction Because of the desire to achieve better well completions, the expanding characteristics of oilwell cements have been a subject of interest ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
1973 - Society of Petroleum Engineers | Journal of Petroleum Technology
... failures were still occurring. In a previous paper, Beirute investigated the behavior of a liquid cement plug ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
1984 - Society of Petroleum Engineers | Journal of Petroleum Technology
Summary During the last few decades, several laboratory investigations and field studies have been conducted in an attempt to find solutions to the problem of gas migration after primary or remedial cement jobs. This article reviews the primary or remedial cement jobs. This article reviews the general findings of previous investigators and offers an updated explanation of the mechanism of gas migration. Results of our laboratory studies show that "mobility" of the fluids in the pore spaces during ...
Tópico(s): Reservoir Engineering and Simulation Methods
1985 - Society of Petroleum Engineers | Journal of Petroleum Technology
Summary A method to scale down well parameters to laboratory conditions for more realistic testing of cement recipes to be used to control wellbore invasion/migration of formation fluids after cementing is introduced. The scale-down procedure proposed here addresses a worst-case scenario. It assumes that the offending gas zone (source of the invading gas) has enough permeability, thickness, and gas volume to invade fully and to pressure-charge the cemented annulus (cement column), if conditions allow. ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
1990 - | SPE Production Engineering
Summary This paper describes a comprehensive circulation and shut-inwell-temperature-profile simulator capable of accounting for free fall duringcementing operations. The program can predict temperatures during circulation of drilling mud in a well or during cementing. The system can also simulateperiods of shut-in at any point during a given run. The simulator was verifiedby use of exact analytical solutions to certain problems. Comparison of simulator runs with field-measured well-temperature ...
Tópico(s): Hydraulic Fracturing and Reservoir Analysis
1991 - Society of Petroleum Engineers | Journal of Petroleum Technology
... Alt-mann Borbón, Francisco Rojas Aravena, and Tatiana Beirute Brealey. Buenos Aires: Teseo, Corporación Andina de Fomento, ...
Tópico(s): International Relations in Latin America
2012 - Cambridge University Press | Latin American Research Review
K.R. Backe, P. Skalle, Ole Bernt Lile, S.K. Lyomov, Harald Justnes, J. Sveen,
... 1) Sabins et al.(2), and Cheung and Beirute(3). Annular gas flow may be initiated when ...
Tópico(s): Oil and Gas Production Techniques
1998 - Society of Petroleum Engineers | Journal of Canadian Petroleum Technology
Fabián Echeverría-Beirute, Seth C. Murray, Patricia E. Klein, C. R. Kerth, R. K. Miller, Benoît Bertrand,
Beverage quality is a complex attribute of coffee (Coffea arabica L.). Genotype (G), environment (E), management (M), postharvest processing, and roasting are all involved. However, little is known about how G × M interactions influence beverage quality. We investigated how yield and coffee leaf rust (CLR) disease (caused by Hemileia vastatrix Berk. et Br.) management affect cup quality and plant performance, in two coffee cultivars. Sensory and chemical analyses revealed that 10 of 70 attributes and 18 ...
Tópico(s): Agricultural and Food Sciences
2017 - American Chemical Society | Journal of Agricultural and Food Chemistry
Alejandro Hernández-Soto, Fabián Echeverría-Beirute, Ana Abdelnour-Esquivel, Marta Valdez-Melara, Jens Boch, Andrés Gatica-Arias,
Understanding agronomic traits at a genetic level enables the leveraging of this knowledge to produce crops that are more productive and resilient, have better quality and are adjusted for consumer preferences. In the last decade, rice has become a model to validate the function of specific genes, resulting in valuable but scattered information. Here, we aimed to identify particular genes in rice related to traits that can be targeted by different mutation techniques in the breeding of crops. We ...
Tópico(s): GABA and Rice Research
2021 - Elsevier BV | Current Plant Biology
Robert C. Smith, R. M. Beirute, G.B. Holman,
Summary Postanalysis often cannot be applied because of lack of prediction and real-time performance data. Proper postevaluation includes collection of actual job performance data and comparison with predicted cementing performance. A comprehensive cementing simulator is required that accounts for fluid properties, well geometry, changing displacement and mud return rates, and the free-fall effect. Such a simulator has been used successfully in the design of many cementing operations and quite frequently ...
Tópico(s): Oil and Gas Production Techniques
1987 - | SPE Production Engineering
Julianne L. Beirute‐Herrera, David Diouf, Daniël L.A. van den Hove, Diego Mastroeni,
Abstract Background Alzheimer’s disease (AD) remains as one of the major challenges for the neuroscientific community today. It affects approximately 50 million cases worldwide, with a total cost estimation of $290 billion in 2019 (Alzheimer’s Association, 2019). The pathophysiological hallmarks of AD are amyloid beta plaques (Aβ) and neurofibrillary tangles (NFTs). Nevertheless, the underlying mechanism have yet to be elucidated (Mehta et al., 2017). Recent efforts have demonstrated that non‐receptor ...
Tópico(s): Dementia and Cognitive Impairment Research
2020 - Wiley | Alzheimer s & Dementia
Produção Nacional
Revisado por pares
Jacques Lolive, Okamura Cintia, Lolive Jacques,
... e, mais recentemente, em Alemoa, Santos (2015) e Beirute no Líbano (2020).Tal contexto mostra a necessidade ...
2015 - Coimbra University Press | Territorium
Fabián Echeverría-Beirute, Ingrid Varela‐Benavides, Jose Pablo Jiménez-Madrigal, Milagro Carvajal-Chacon, Tomás De Jesús Guzmán-Hernández,
The lack of knowledge about biological communities residing in soils, especially those in tropical regions, represents a constraint to management practices to take advantage of the ecological services provided by soil microbiota to agroecosystems. One of the complexities derived from describing biological diversity in such tropical conditions comes from the methods used to isolate microorganisms without altering the composition of the sample. The goal of this study was to establish a protocol for ...
Tópico(s): Genomics and Phylogenetic Studies
2021 - Future Science Ltd | BioTechniques
Alejandro Hernández-Soto, Fabián Echeverría-Beirute, Tomás Hernández,
Introduction. Sustainable farming requires new tools for the control of pathogens, since there is a constant evolution to overcome the current biological and chemical strategies. The information provided by the transcriptomics allows creating new possibilities to tackle the pathogens. It is possible to interrupt the genetic expression of a pathogen and disable it using RNA interference (RNAi). Objective. To perform an analysis of an emerging technology useful for pest control, based on RNA interference. ...
Tópico(s): CRISPR and Genetic Engineering
2021 - University of Costa Rica | Agronomía Mesoamericana
Summary Since the introduction of free-fall models for primary cementing, several companies have been monitoring cementing operations by continually measuring the rate of returns, the rate of pumping, the density of the fluids pumped, the density of the fluids returned to the surface, and the surface pressure.' Measured values of surface pressure and rate of returns have been compared to predicted values obtained with cementing simulators. 1–7 Discrepancies between measured and simulated behaviors ...
Tópico(s): Tunneling and Rock Mechanics
1988 - | SPE Drilling Engineering
María Rachel Fróes da Fonseca, Marcos Chor Maio,
... Conferência Geral da Unesco, realizada em 1948, em Beirute, durante a qual foi criado, sob a direção ...
Tópico(s): Science and Science Education
2004 - Fundação Oswaldo Cruz, Casa de Oswaldo Cruz | História Ciências Saúde-Manguinhos
Produção Nacional
Revisado por pares
... no Brasil, e, no Líbano, na cidade de Beirute e na Aldeia de Mhabib. Família, religião e ...
Tópico(s): Jewish and Middle Eastern Studies
2018 - PONTIFÍCIA UNIVERSIDADE CATÓLICA DE MINAS GERAIS | HORIZONTE - Revista de Estudos de Teologia e Ciências da Religião
R. M. Beirute, M. Wilson, Fred Sabins,
Summary Studies were conducted with a large-scale displacement model containing manmade tar and competent (hard) manmade sandstone formations. This paper investigates the cement placement process and the acoustic response with standard logging tools. This investigation revealed that the formations behind the cement make a significant contribution to the pipe-attenuation rate. The large-scale acoustic experiments indicate that lower pipe-attenuation-rate levels are measured when tar formations are ...
Tópico(s): Geotechnical Engineering and Underground Structures
1992 - | SPE Drilling Engineering
Não se sabe com certeza a data da fundação da Escola. Há os que admitem que ela fôra criada pouco depois da vitória de Actio (1), ou que já existia sob Adriano (2) . Porém a doutrina mais autorizada sustenta que a fundação teve lugar, ou nos primórdios, ou nos meados do século III (3) . Os dois primeiros séculos estão envoltos por espessas sombras que a escassez dos documentos, longe de dissipar, abre horizontes para as mais arrojadas conjecturas.
Tópico(s): Archaeology and Historical Studies
1966 - UNIVERSIDADE DE SÃO PAULO | Revista de História
Maria Regina da Cunha, Eurípedes Simões de Paula,
INTRODUÇÃO
Tópico(s): Global Maritime and Colonial Histories
1966 - UNIVERSIDADE DE SÃO PAULO | Revista de História
What is living in a city where the damages of the civil war (1975-1990) are still visible for its inhabitants? The description of the use of memory in a wounded district of Beirut aims to analyze the construction of urban temporalities in connection with the period of the Lebanese wars (1975-1990). The city space is approached here as the frame of everyday life and common and ordinary practices. It constitutes both a support and a vector of the expressions of memory. By creating monuments or by forgetting ...
Tópico(s): Urban and sociocultural dynamics
2011 - | História Unisinos
Pedro E. Torres-Asuaje, Alba M. Cotes-Prado, Fabián Echeverría-Beirute, Fabio A. Blanco-Rojas, Jorge A. Sandoval-Fernández, Rafael A. Segura-Mena, Juan E. Palomares‐Rius,
Tópico(s): Legume Nitrogen Fixing Symbiosis
2022 - Springer Science+Business Media | European Journal of Plant Pathology
... medical care provision in Latin America1 Luis Asís Beirute, Luis Asís Beirute Director, Medical Planning Unit, Social Insurance Fund of ... for more papers by this author Luis Asís Beirute, Luis Asís Beirute Director, Medical Planning Unit, Social Insurance Fund of ...
Tópico(s): Global Maternal and Child Health
1988 - Wiley | International Social Security Review
Produção Nacional
Silvana Schimanski, Luana Menezes,
... trabalho apresenta o caso das cidades-irmãs Rio-Beirute como um potencial instrumento para a promoção da ... do caso da irmandade entre os municípios de Beirute (Líbano) e Rio de Janeiro (Brasil), que formalizaram ... Consulado Geral do Líbano lançou o projeto “Rio-Beirute: Caminhos para duas cidades”, com propostas de ações ... pesquisa sugerem que as ações do Projeto Rio-Beirute têm potencial para a promoção de determinados aspectos ...
Tópico(s): Urban Planning and Governance
2025 - Centro Latino-Americano de Estudos em Cultura | RELACult - Revista Latino-Americana de Estudos em Cultura e Sociedade
Tatiana Beirute, Nora Garita Bonilla,
Este trabajo trata de descubrir la lógica implícita en las prácticas sociales naturalizadas mediante la presentación de unanálisis sociológico de los dibujos. Es parte de un proyecto de mayor envergadura titulado “La mujer y la ciencia” que tratóde responder a preguntas como: ¿Qué es la relación entre la ciencia y de género? ¿Cuál es la relación entre la ciencia y laclase social? ¿Cuál es la relación entre la ciencia, la razón y el poder?. Se presenta el análisis que se derivan de pedir a losestudiosos ...
Tópico(s): Education in Rural Contexts
2011 - University of Costa Rica | Diálogos Revista Electrónica
... assim como a destruição da capital do Líbano, Beirute. Neste artigo, deteremos nossa análise nos momentos iniciais ... conflito, mais especificamente no ano de 1975 em Beirute, apresentando seus principais beligerantes e patrocinadores. Consideraremos também ...
Tópico(s): Jewish and Middle Eastern Studies
2019 - UNIVERSIDADE FEDERAL DE SÃO PAULO | Revista Hydra Revista Discente de História da UNIFESP
José Andrés Rojas-Chacón, Fabián Echeverría-Beirute, Bradley J. Till, Andrés Gatica-Arias,
Tópico(s): Transgenic Plants and Applications
2024 - Springer Science+Business Media | Journal of Plant Pathology
Produção Nacional
Christina Stephano de Queiroz,
... pensamento do intelectual palestino. Nascida e criada em Beirute, capital libanesa, ela reside em Nova York desde ... década de 1970. Graduada na Universidade Americana de Beirute (AUB) e com duas pós-graduações na Universidade ...
Tópico(s): Gender, Sexuality, and Education
2024 - UNIVERSIDADE FEDERAL DE SÃO PAULO | Exilium Revista de Estudos da Contemporaneidade
Produção Nacional
Lucas Vieira Barros, Brandow Neri, Darlan Portela Fontenele, Diogo Farrapo Albuquerque, Ronnie Quintero, J. Carvalho,
... detection; CTBTO; nuclear explosion. RESUMO. A explosão de Beirute, Líbano, em 4 de agosto de 2020, uma ... dos dados do IMS.Palavras-chave: Explosão em Beirute; detecção de evento sísmico; detecção de evento infrassônico; ...
Tópico(s): Earthquake Detection and Analysis
2021 - | Brazilian Journal of Geophysics