Drilling Data Analysis
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Effect of Plasma Arc Welding on Residual Stress and Distortion of Thin Titanium Sheet
In this research work, a finite element model is developed to predict the temperature field and residual stress during plasma arc welding of thin Ti-6Al-4V sheets. Dhinakaran’s heat source model which is based on Parabolic Gaussian distribution is used to predict the temperature field and Anand’s model is used to predict the residual stress. Numerical si
Mat. Res.. Publicado em: 20/01/2020
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2. Application challenges for information and automation technologies in an underground mine in Brazil
Abstract Organizations can establish a value-added sustainable strategy by increasing asset utilization. WLAN infrastructure in underground mines tends to be a consistent platform for reliability in data/information management, and assertive governance practices. It enables remote monitoring, registering and data transfer from a control room, avoiding unnece
REM, Int. Eng. J.. Publicado em: 2017-03
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3. MODELING AND ANALYSIS OF UNSTEADY FLOW BEHAVIOR IN DEEPWATER CONTROLLED MUD-CAP DRILLING
Abstract A new mathematical model was developed in this study to simulate the unsteady flow in controlled mud-cap drilling systems. The model can predict the time-dependent flow inside the drill string and annulus after a circulation break. This model consists of the continuity and momentum equations solved using the explicit Euler method. The model consider
Braz. J. Chem. Eng.. Publicado em: 2016-03
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4. The Prediction of the Man-Hour in Aircraft Assembly Based on Support Vector Machine Particle Swarm Optimization
ABSTRACT: As the representative of manufacturing industry, aircraft assembly lacks of effective method to forecast man-hour. The forecasting accuracy of existing methods is universally pretty low. On the basis of full analysis of aircraft assembly's feature, this study proposes a forecasting model based on support vector machine (SVM), which is optimized by
J. Aerosp. Technol. Manag.. Publicado em: 2015-03
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5. Temperature change in pig rib bone during implant site preparation by low-speed drilling
OBJECTIVES: The purpose of this study was to evaluate the temperature change during low-speed drilling using infrared thermography. MATERIAL AND METHODS: Pig ribs were used to provide cortical bone of a similar quality to human mandible. Heat production by three implant drill systems (two conventional drilling systems and one low-speed drilling system) was e
Journal of Applied Oral Science. Publicado em: 2010-10
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6. Methodology for drilling data analysis applied to exploitation wells / Uma metodologia para analise de dados de perfuração de poços de desenvolvimento
The increasing complexity of environments explored and the technology advance characterize a dynamic scenario of Drilling Industry, which has lead to changes in well profiles. Such aspects emphasize the importance of well planning in order to obtain more efficient operations in economical and safety terms. A key point of this process is the knowledge about t
Publicado em: 2008
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7. Perfil geológico-geotécnico do subsolo ao longo do traçado do metrô de Goiânia / Geological-geotechnical profile of the subsoil along the Goiânia suway alignment
The building of the Goiânia subway is one of the items in the Proposal for Life Quality Improvement and Social Inclusion of the population of the Metropolitan Region of Goiânia (MRG), involving the municipal administrations of Goiânia and Aparecida de Goiânia. The proposal, which is part of the rearrangement of the MRG public transport system and follows
Publicado em: 2007
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8. DEVELOPMENT AND IMPLEMENTATION OF METHODOLOGIES FOR THE DETERMINATION OF THE DEFORMABILITY AND STRESS IN GNAISSIC ROCK MASSES / DESENVOLVIMENTO E IMPLEMENTAÇÃO DE METODOLOGIAS PARA A DETERMINAÇÃO DA DEFORMABILIDADE E TENSÕES EM MACIÇOS GNÁISSICOS
This thesis presents the results from an experimental program with intention to determine the properties of deformabilty and in situ stress in gnaissic rocks. The determination of in situ stress is fundamental for any work in rock mechanics, it is use like field conditions at the in engineering problems, and in bigger scales it gives some indications of the
Publicado em: 2007
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9. Influence of the phreatic aquifer in the nutrient dynamics (nitrogen and phosphorus) in lakes of different hydrodynamic characteristics / Influência do aqüífero freático na dinâmica de nutrientes (nitrogênio e fósforo) em lagoas com diferentes características hidrodinâmicas
The discharge zone of Paranapanema river at Jurumirim reservoir is an area of decreased current velocity associated to a great number of aquatic environments with different hydrodynamic characteristics. To evaluate the influence of the superficial phreatic aquifer in the nutrient dynamics (nitrogen and phosphorus and main cations), three floodplain lakes wit
Publicado em: 2007
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10. Interpretation and analysis of drilling data in petroleum wells / Interpretação e analise de dados de perfuração em poços de petroleo
A exploração de petróleo no mar desenvolveu-se substancialmente nas últimas décadas. Ao longo desse processo, notadamente a partir da década de 80, a quantidade de informação gerada durante a perfuração aumentou dramaticamente. Se por um lado o cenário atual apresenta informação em abundância, por outro lado existe carência de ferramentas capa
Publicado em: 2006
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11. MODELING AND FORECAST OF THE RECOVERABLE OIL VOLUME: METHODOLOGY AND APPLICATION IN BRAZILIAN BASINS / MODELAGEM E PREVISÃO DO VOLUME DE ÓLEO RECUPERÁVEL: METODOLOGIA E APLICAÇÃO EM BACIAS BRASILEIRAS
This dissertation presents methodologies to forecast the recoverable oil volume in sedimenary basins and to explain the evolution of the discovery process. The evolution of the discovery process is modeled as the product of two mathematical functions of opposing trends, namely, the control function, increasing, which represents the degree of knowledge and in
Publicado em: 2006
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12. Alterações eletrocardiográficas em cirugias para a colocação de implantes dentários sob anestesia local e pré-medicação ansiolítica" / Electrocardiographic changes during oral implant surgeries under local anesthesia and sedative premedication
The clinical significance of eletrocardiographic evalution in patients without cardiovascular disease is very small. However, continuous monitoring using electrocardiogram and anxiety control methods, such as behaviour manegement technique and premedication, may be justified in patients with cardiovascular disease undergoing dental procedures that cause stre
Publicado em: 2006