This paper waa selected for presemalion by an SPE Program Commiltee following review of information contained in an abslract submitted by the author(s), Contents of the oaper, os presented, have not been reviewed by the SOcietyof Petroldum Engineers and are subject to correc~'?nby the author(a). The material, as presented, doea not necessarily reflect any posilionof the %ciely of Petroleum Engineers, ita officers, or membw Papers presented at SPE meetings are subject to publication reviaw by Editorial Committees of !he Society of Petroleum Engineers. Permission LOcopy is restricted to an abstract of not more tf%, JO words. Illustrationsmay not ba copied. The af=tract should contain conspicuousacknowledgmentof where and by whom Ihe paper is presented, Write Public:.tionsManager, SPE, ABSTRACTGiven the various controllabledrilling parameters, hydraulic power is perhaps the most versatile, and yet least understood effect. The primary usage of hydraulic energy and t?,edrilling fluid as applied by rock bits is to clean the wellbore botto~and the teeth of the bit. For decades, hydraulic energy had been determined according to first order approximations of jet effects, such as impact force andfor hydraulic horsepower. These factors were useful to the drilling personnel but did not provide enough informationfor the engineer to intentionallydesign the hydraulic system to clean the bit and wellbore. In order to achieve the cleaning objectives, one needed to knc,wnot only the jet velocity but also its interacticz with the bit body and the rock formation. The challenge to find the stagnation zones, the erosion rate on the different parts of the bit, and the movement of the rock chips became apparent.The paper discusses a computer simulation study of the fluid characteristicsat each point of importance on the bit, which has been utilized to design a new nozzle system. This study consists of uiniextended nozzles, stabilizer pads, and a center nozzle. The means of designing an optimized hydraulic system, including laborc;ory work and the statisticalanalysis of field run data for correlation between theory and practice is presented. This integrated nozzle configuration increased the overall rate of penetration an average of 18 percent based upon 134 mini-extended nozzle bit runs. The drilling costs were cut inherently due to the penetrationrate increase.

Fluid flow across complex PDC bit geometry is difficult to optimize by drilling tests in the laboratory. Insight into this flow field has been developed within a computer program which simulates the fluid flow at the bit. The development aspects of the computer code which allow for the three-dimensional flow visualization are reviewed. Graphical representation of the velocity vectors and pressure fields for six bit geometries are given to show the effects of nozzle location, orientation, baffles and flow channels. This in turn serves as data for a bottom hole cleanup, cooling rate and body erosion analysis. Dull bit observations are discussed and compared to the computer-derived hydraulic conditions.

RESUMENEste trabajo, en síntesis, trata del ejercicio de buenas prácticas de gestión empresarial. El carácter sistémico de la administración, la alineación, la estrategia y habilidades en el sector de la minería metálica en el Perú, la influencia de la teoría de recursos y desarrollo de capacidades. También nos ocupamos de la cadena de valor, las ventajas competitivas, las estrategias y habilidades en la actividad minera metálica y estratos mineras. Desde el desarrollo de estos puntos, hemos creado como conclusiones que todos los estratos formales, legales o ilegales coexisten alguna manera, porque los legales pueden exportar toda la producción. Por otra parte, se requiere una estrategia, promoción, planificación y liderazgo profesional especializado en esta industria. Al mismo tiempo, es necesario que el apoyo del gobierno todo el esfuerzo y los centros de formación técnica y profesional en geología, minería, metalurgia, química y afines competencias definir y diseñar la formación de competencias para proporcionar el sector especializado del capital humano. ABSTRACTThis work, in synthesis, is about the exercise of good corporate management practice. The systematic nature of administration, alignment, strategy and skills in the metal mining sector in peru, influence of the Resource and Capacity development theory. We also deal with the value chain, competitive advantages, strategies and skills in the metal mining activity and mining strata. From the development of these points, we set up as conclusions that all formal, legal or illegal strata coexist somehow because the legal ones can export all production. On the other hand, it is required a strategy, promotion, planning and specialized professional leadership in this industry. At the same time, it is required that the government support all this effort and the centers of technical and vocational training in geology, mining, metallurgy, chemistry and related competences define and design formation competence to provide the specialized human capital sector.Keywords: human capital, management, metallurgical, mining, strategical alignment Extensión universitaria, proyección social y su relación con la investigación y formación profesional en el marco del proceso de acreditación universitaria en la FII INTRODUCCIÓNUna de las funciones principales de la universidad peruana, junto a la formación profesional y la investigación, es su vinculación a la comunidad y a la sociedad que la alberga. Esto a través de la extensión universitaria y la proyección social.El estudio comprendió la delimitación conceptual y operativa de los términos extensión universitaria y proyección social, en la facultad de Ingeniería Industrial de la UNMSM, y su relación con los procesos de formación profesional e investigación. En tal sentido, se enfatiza la necesidad de asumir y desarrollar una concepción integral de la extensión universitaria.En las últimas décadas se ha puesto de relieve la gestión del conocimiento como el factor clave para la generación de ventajas competitivas. En tal sen...

Diseño y desarrollo de nuevos materiales textiles para el aislamiento y acondicionamiento acústicoInd. data 13(1), 2010 80 diseño y tecnoñoGía INTRODUCCIÓNEn la actualidad, el tema del aislamiento sonoro es una gran preocupación en diversos entornos, tanto académicos como empresariales, considerando que sus efectos pueden generar pérdida de capacidad auditiva, sueño, trastornos mentales, atrasos en el desarrollo de actividades cotidianas y laborales, aislamiento social, devaluación de la vivienda, etc.Por todo esto y en el campo de la ingeniería en general, su investigación es un tema de actualidad, es decir, queremos conocer cómo poder aislar el ruido o una parte de él, esto lleva pues a la búsqueda y a la prueba de diversos materiales acústicos.El objetivo del presente artículo es mostrar los resultados obtenidos al analizar dos materiales para el aislamiento sonoro, tales como la napa textil y la lana de vidrio, esto mediante la elaboración de un prototipo de panel acústico multicapa. Esta investigación se justifica porque presentará dos alternativas para la reducción del ruido.

This paper waa selected for presemalion by an SPE Program Commiltee following review of information contained in an abslract submitted by the author(s), Contents of the oaper, os presented, have not been reviewed by the SOcietyof Petroldum Engineers and are subject to correc~'?nby the author(a). The material, as presented, doea not necessarily reflect any posilionof the %ciely of Petroleum Engineers, ita officers, or membw Papers presented at SPE meetings are subject to publication reviaw by Editorial Committees of !he Society of Petroleum Engineers. Permission LOcopy is restricted to an abstract of not more tf%, JO words. Illustrationsmay not ba copied. The af=tract should contain conspicuousacknowledgmentof where and by whom Ihe paper is presented, Write Public:.tionsManager, SPE, ABSTRACTGiven the various controllabledrilling parameters, hydraulic power is perhaps the most versatile, and yet least understood effect. The primary usage of hydraulic energy and t?,edrilling fluid as applied by rock bits is to clean the wellbore botto~and the teeth of the bit. For decades, hydraulic energy had been determined according to first order approximations of jet effects, such as impact force andfor hydraulic horsepower. These factors were useful to the drilling personnel but did not provide enough informationfor the engineer to intentionallydesign the hydraulic system to clean the bit and wellbore. In order to achieve the cleaning objectives, one needed to knc,wnot only the jet velocity but also its interacticz with the bit body and the rock formation. The challenge to find the stagnation zones, the erosion rate on the different parts of the bit, and the movement of the rock chips became apparent.The paper discusses a computer simulation study of the fluid characteristicsat each point of importance on the bit, which has been utilized to design a new nozzle system. This study consists of uiniextended nozzles, stabilizer pads, and a center nozzle. The means of designing an optimized hydraulic system, including laborc;ory work and the statisticalanalysis of field run data for correlation between theory and practice is presented. This integrated nozzle configuration increased the overall rate of penetration an average of 18 percent based upon 134 mini-extended nozzle bit runs. The drilling costs were cut inherently due to the penetrationrate increase.