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Previous issue date: 2014-02-13 / A explora??o e a produ??o de hidrocarbonetos exigem metodologias muito avan?adas para se conseguir trabalhar em condi??es cada vez mais adversas. Dentro destas novas metodologias de extra??o de petr?leo surge ? inje??o de solu??es polim?ricas, que torna-se eficiente no controle da mobilidade do fluido deslocante (?gua), e sob condi??es favor?veis, implica na antecipa??o da recupera??o de ?leo e, em alguns casos, fatores de recupera??o maiores. Este m?todo consiste em adicionar pol?meros ? ?gua de inje??o para aumentar sua viscosidade, fazendo com que a ?gua se difunda mais no meio poroso e aumentando a efici?ncia de varrido no reservat?rio. Neste trabalho, estuda-se atrav?s de simula??o num?rica, a aplica??o da inje??o de solu??o polim?rica em um reservat?rio homog?neo, semissint?tico com caracter?sticas do Nordeste Brasileiro, as simula??es num?ricas foram realizadas atrav?s do simulador t?rmico STARS da CMG (Computer Modelling Group). O trabalho teve como objetivo analisar a influ?ncia de alguns par?metros de reservat?rio sobre o comportamento de produ??o do ?leo, tendo como resposta a produ??o acumulada. As simula??es da inje??o de solu??o polim?rica, al?m da simula??o da inje??o de ?gua, consistiram em diversas etapas de an?lise de sensibilidade de par?metros de reservat?rio e operacionais. Foram realizadas simula??es para analisar a influ?ncia da inje??o de ?gua, solu??o polim?rica e inje??o alternada de bancos de ?gua e de solu??o polim?rica, comparando os resultados para cada condi??o simulada. As principais vari?veis avaliadas foram: viscosidade do ?leo, porcentagem de pol?mero injetado, viscosidade do pol?mero e vaz?o de inje??o de ?gua. A avalia??o da influ?ncia das vari?veis consistiu de um planejamento experimental completo seguido de uma an?lise por Diagrama de Pareto com o objetivo de apontar quais as vari?veis seriam mais influentes sobre a resposta representada pela produ??o acumulada do ?leo. Encontrou-se que todas as vari?veis influenciaram significativamente na recupera??o de ?leo e que a inje??o de solu??o polim?rica de forma cont?nua se mostrou mais eficiente para a produ??o acumulada quando comparada a recupera??o do ?leo por inje??o cont?nua de ?gua. A recupera??o prim?ria apresentou baixos n?veis de produ??o de ?leo, a inje??o de ?gua melhora significativamente a produ??o de ?leo no reservat?rio, mas a inje??o de solu??o polim?rica surge como uma nova metodologia para o incremento da produ??o de ?leo, aumento da vida ?til do po?o e poss?vel diminui??o de ?gua produzida. / Developing an efficient methodology for oil recovery is extremely important
.
Within the range of
enh
anced oil recovery, known as EOR, the injection of polymer solutions becomes effective in
controlling the mobility of displacing fluid
.
This method consists of adding polymers to the
injection water to increase its viscosity, so that more water diffuses in
to the porous medium and
increasing the sweep efficiency in the reservoir.
This work
is studied
by numerical simulation
,
application of the
injection
polymer solution
in a
homogeneous
reservoir
,
semisynthetic
with
similar characteristics
to the reservoirs
of the Brazilian
Northeast
, numerical simulations were
performed using thermal simulator STARS from CMG (Computer Modelling Group ). The study
aimed to analyze the influence of some parameters on the behavior of reservoir oil production,
with the response
to cumulative production. Simulations were performed to analyze the influence
of water injection, polymer solution and alternating injection of water banks and polymer
solution, comparing the results for each simulated condition. The primary outcomes were:
oil
viscosity, percentage of injected polymer, polymer viscosity and flow rate of water injection. The
evaluation of the influence of variables consisted of a complete experimental design followed a
Pareto analysis for the purpose of pointing out which va
riables would be most influential on the
response represented b
y the cumulative oil production
.
It was found that all variables
significantly influenced the recovery of oil and the injection of polymer solution on an ongoing
basis is more efficient for the
cumulative production compared to oil recovery by continuous
water injection. The primary recovery show
ed low levels of oil production
, water injection
significantly improves the pro
duction of oil in the reservoir
, but the injection of polymer solution
em
erges as a new methodology to increase the production of oil, increasing the life of the well
and possible reduction of water produced.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/19370 |
| Date | 13 February 2014 |
| Creators | Silva, Maria do Socorro Bezerra da |
| Contributors | 09599576420, http://lattes.cnpq.br/8753782475740001, Lucena Neto, Marciano Henrique de, 32288514434, http://lattes.cnpq.br/4809804711785369, Mata, Wilson da, 09453210404, http://lattes.cnpq.br/0288842238100161, Barillas, Jennys Lourdes Meneses, Dutra J?nior, Tarcilio Viana |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM CI?NCIA E ENGENHARIA DE PETR?LEO, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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