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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Prot?tipo para a avalia??o das metodologias de medi??o de vaz?o a partir do perfil t?rmico em po?os injetores d'?gua

Lima, Verivan Santos 06 March 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-06-02T19:27:09Z No. of bitstreams: 1 VerivanSantosLima_DISSERT.pdf: 5589231 bytes, checksum: 322ec16af8018b46f40a8708714b4f5f (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-06-05T23:25:34Z (GMT) No. of bitstreams: 1 VerivanSantosLima_DISSERT.pdf: 5589231 bytes, checksum: 322ec16af8018b46f40a8708714b4f5f (MD5) / Made available in DSpace on 2017-06-05T23:25:34Z (GMT). No. of bitstreams: 1 VerivanSantosLima_DISSERT.pdf: 5589231 bytes, checksum: 322ec16af8018b46f40a8708714b4f5f (MD5) Previous issue date: 2017-03-06 / Este trabalho objetiva o desenvolvimento de um prot?tipo instrumentado, em escala reduzida, para a avalia??o da equa??o desenvolvida por Ramey Jr. em 1962 aplicada ao c?lculo da vaz?o, tendo como partida o perfil t?rmico do fluido em po?os injetores d??gua em campos de produ??o de petr?leo. Primeiramente, ser? apresentado um resumo bibliogr?fico, descrevendo n?o s? a teoria de Ramey, mas todas as informa??es m?nimas necess?rias ao entendimento e desenvolvimento do prot?tipo. Finalmente, ser? transcorrido sobre o prot?tipo em si e sobre a planta instrumentada instalada no LAMP (Laborat?rio Aplicado ? Media??o de Petr?leo) da UFRN, bem como sobre os resultados obtidos nos testes que foram realizados. / This study aims to develop of an instrumented prototype, in reduced scale, for the evaluation of equation developed by Ramey, Jr. (1962) applied to the calculation of flow based on thermal profile of fluid in water injection wells in oil production fields. First, a bibliographic summary is going to be presented, describing not only the Ramey?s theory, but all minimum necessary information for the understanding and development of prototype. Finally, this work is going to describe the prototype and the installed instrumented plant on LAMP (Applied Laboratory for Petroleum Mediation) UFRN, as well as the obtained results in the performed tests.
2

Estudo do acoplamento do po?o injetor nas simula??es de inje??o c?clica de vapor

Souza J?nior, Jos? Cleodon de 20 February 2013 (has links)
Made available in DSpace on 2014-12-17T14:09:16Z (GMT). No. of bitstreams: 1 JoseCSJ_TESE_PARCIAL.pdf: 3198681 bytes, checksum: 3124bf4fcf475e3c972bb5266fef2405 (MD5) Previous issue date: 2013-02-20 / Steam injection is a method usually applied to very viscous oils and consists of injecting heat to reduce the viscosity and, therefore, increase the oil mobility, improving the oil production. For designing a steam injection project it is necessary to have a reservoir simulation in order to define the various parameters necessary for an efficient heat reservoir management, and with this, improve the recovery factor of the reservoir. The purpose of this work is to show the influence of the coupled wellbore/reservoir on the thermal simulation of reservoirs under cyclic steam stimulation. In this study, the methodology used in the solution of the problem involved the development of a wellbore model for the integration of steam flow model in injection wellbores, VapMec, and a blackoil reservoir model for the injection of cyclic steam in oil reservoirs. Thus, case studies were developed for shallow and deep reservoirs, whereas the usual configurations of injector well existing in the oil industry, i.e., conventional tubing without packer, conventional tubing with packer and insulated tubing with packer. A comparative study of the injection and production parameters was performed, always considering the same operational conditions, for the two simulation models, non-coupled and a coupled model. It was observed that the results are very similar for the specified well injection rate, whereas significant differences for the specified well pressure. Finally, on the basis of computational experiments, it was concluded that the influence of the coupled wellbore/reservoir in thermal simulations using cyclic steam injection as an enhanced oil recovery method is greater for the specified well pressure, while for the specified well injection rate, the steam flow model for the injector well and the reservoir may be simulated in a non- coupled way / A inje??o de vapor ? um m?todo aplicado geralmente em ?leos muito viscosos e consiste em injetar calor para reduzir a viscosidade e, portanto, aumentar a mobilidade do ?leo, resultando em incremento na produ??o dos po?os. Para o planejamento de um projeto de inje??o de vapor ? necess?rio efetuar um estudo de reservat?rio com o objetivo de se definir os v?rios par?metros necess?rios para um eficiente gerenciamento de calor no meio poroso e, com isto, melhorar o fator de recupera??o do reservat?rio. Neste estudo, para o sistema de inje??o, representado pelo po?o injetor, ? normalmente adotado um modelo padr?o em todos os casos estudados, sendo desta forma, a integra??o entre o po?o injetor e o reservat?rio, realizada de forma bastante simplificada. Este trabalho tem como objetivo mostrar a influ?ncia do acoplamento do po?o injetor nas simula??es t?rmicas de reservat?rios submetidos ? inje??o c?clica de vapor. Neste estudo, a metodologia utilizada na solu??o do problema envolveu o desenvolvimento de um modelo de po?o para a integra??o do modelo de escoamento de vapor em po?os de petr?leo, VapMec, e o modelo de reservat?rio tipo beta para a inje??o c?clica de vapor em reservat?rios de petr?leo. Assim, desenvolveram-se estudos de caso para reservat?rios rasos e profundos, considerando as principais configura??es de po?o injetor existentes na ind?stria de petr?leo, ou seja, coluna convencional sem packer, coluna convencional com packer e coluna isolada com packer. Foi realizado um estudo comparativo dos par?metros de inje??o e produ??o obtidos na simula??o, considerando sempre as mesmas condi??es de opera??o, para os dois modelos de simula??o, sendo um modelo n?o acoplado e o outro modelo acoplado. Observou-se que os resultados entre os modelos s?o bastante similares para a situa??o de vaz?o de inje??o igual ? vaz?o especificada, tendo sido encontrado diferen?as significativas na situa??o em que a press?o de inje??o ? igual ? press?o especificada. Finalmente, com base nos experimentos computacionais, foi poss?vel concluir que a influ?ncia do acoplamento do po?o injetor nos estudos de reservat?rios que utilizam a inje??o c?clica de vapor como m?todo especial de recupera??o ? maior para a condi??o de press?o especificada, sendo que para a condi??o de vaz?o especificada, o modelo de escoamento no po?o injetor e o modelo do reservat?rio podem ser simulados de forma n?o integrada

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