Rod Pump
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Draft genome sequence of a GES-5-producing Serratia marcescens isolated in southern Brazil
Abstract Serratia marcescens is a Gram-negative rod intrinsically resistant to polymyxins and usually associated with wound, respiratory and urinary tract infections. The whole genome of the first GES-5-producing S. marcescens isolated from a Brazilian patient was sequenced using Ion Torrent PGM System. Besides blaGES-5, we were able to identify genes encodi
Braz. J. Microbiol.. Publicado em: 2017-06
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2. Sistema especialista fuzzy para dimensionamento de bombeio mecânico
Despite the emergence of other forms of artificial lift, sucker rod pumping systems remains hegemonic because of its flexibility of operation and lower investment cost compared to other lifting techniques developed. A successful rod pumping sizing necessarily passes through the supply of estimated flow and the controlled wear of pumping equipment used in the
Publicado em: 2010
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3. Desenvolvimento de um sistema Inteligente para a análise de cartas dinamométricas no método de elevação por bombeio mecânico
A necessidade da elevação artificial de petróleo se dá quando a pressão do reservatório não é suficientemente elevada para que os fluidos nele contidos possam alcançar a superfície espontaneamente. Assim a elevação artificial fornece energia de forma suplementar ou integral aos fluidos do poço para que cheguem à superfície. O Bombeio mecânico
Publicado em: 2009
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4. Active magnetic bearing applied to a tubular linear induction motor. / Mancal magnético ativo aplicado a um motor de indução linear tubular.
A tubular linear induction motor applied to onshore oil exploitation, named MATÆOS (which is in the Portuguese acronym for Tubular Asynchronous Motor for Onshore Oil Exploitation) was built at Escola Politécnica da Universidade de São Paulo (EPUSP). Its purpose is to directly drive the sucker-rod pump installed in the down hole of the oil well. In continu
Publicado em: 2009
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5. Desenvolvimento de um simulador de bombeio por cavidades progressivas
The method of artificial lift of progressing cavity pump is very efficient in the production of oils with high viscosity and oils that carry a great amount of sand. This characteristic converted this lift method into the second most useful one in oil fields production. As it grows the number of its applications it also increases the necessity to dominate its
Publicado em: 2005
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6. Simulação computacional de eventos termo-hidraulicos transitorios em multicircuitos com multibombas
PANTERA-2 (from Programa para Análise Termo-hidráulica de Reatores a ÁguaProgram for Thermal-hydraulic Analysis of Water Reactors, Version 2), whose fundamentals are described in this work, is intended to carry out rod bundle subchannel analysis in conjunction with multiloop simulation. It solves simultaneously the conservation equations of mass, axial an
Publicado em: 2003
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7. Sistema inteligente para aplicações de soluções ao bombeamento mecanico de petroleo
This work presents a proposal for a Sucker Rod Pumping Analysis Expert System, with the main characteristic of presentating diagnostics and solutions to sucker rod pumping problems. The system includes database treatment, syntoms identification, diagnosis and solutions proposals, performed by a group of agents specialized in sucker rod pumping problems solut
Publicado em: 1995
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8. The effect of strophanthidin on action potential, calcium current and contraction in isolated guinea-pig ventricular myocytes.
1. A method is described for producing high yields of calcium-tolerant ventricular myocytes from guinea-pig hearts (73.4% rod-shaped cells, n = 19). Their action potential (AP) and membrane currents were recorded using conventional microelectrodes and cell shortening was measured optically using a linear photodiode array. 2. The sensitivity of the guinea-pig
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9. Effects of temperature changes on toad rod photocurrents.
Rod current responses were measured over the range 5-30 degrees C. Following a rapid decrease in temperature the amplitude of the dark current decreased without detectable delay (less than 3 s). Over a period of several minutes the amplitude of the dark current sometimes relaxed slightly towards its previous value. The rapid change cannot be accounted for si
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10. Measurement of sodium-calcium exchange in salamander rods.
1. Methods employing suction electrodes to measure the small inward currents associated with the exchange of internal Ca2+ for external Na+ in salamander rod outer segments are described. 2. The ratio of the integral of the exchange current to the integral of the Ca2+ current during the loading period averaged 0.37, which is consistent with 1 Ca2+ ion exchan