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Previous issue date: 2010-02-12 / Ag?ncia Nacional do Petr?leo - ANP / Este trabalho descreve a s?ntese e o estudo da aplica??o em fluido de perfura??o de um
novo tensoativo (Tri-?ster Lipof?lico - TEL) obtido a partir de ?cido c?trico com octanol. A
rea??o foi acompanhada por cromatografia em camada delgada (CCD) e o produto, ap?s a
purifica??o, foi caracterizado por resson?ncia magn?tica nuclear de pr?ton e carbono (RMN H1
e
C
13), an?lise termogravim?trica e de tens?o superficial em ?leo e ?gua. Atrav?s de testes
comparativos com dois produtos comerciais usados em campo, avaliou-se o desempenho, como
emulsificante, do TEL em fluidos ? base de ?ster, n-parafina e biodiesel de mamona nas raz?es
?leo/?gua (ROA) 70/30 e 60/40. Posteriormente, esses fluidos foram envelhecidos em estufa
rotativa a 200 ?F durante 16 h, sendo ent?o realizadas medidas reol?gicas e de estabilidade
el?trica a 135 ?F, separa??o de fase ap?s sete (7) dias em repouso e volume de filtrado em alta
press?o e alta temperatura. O comportamento reol?gico foi avaliado a partir das curvas de fluxos.
Observou-se, tamb?m, que estes apresentaram comportamento similares aos dos fluidos usados
em campo (Binghamiano e pseudopl?stico com limite de escoamento). Os testes laboratoriais
mostraram que o TEL reduziu o volume de filtrado e promoveu um aumento de estabilidade
mec?nica e t?rmica. / This work describes the synthesis and study of the application of a new surfactant (Triester
Lipophilic ? TEL) obtained by citric acid with octanol. It is reaction was followed by thin
layer chromatography (TLC) and after purification the product was characterized by proton and
13 ? carbon nuclear magnetic resonance spectroscopy ( H and 13C NMR), thermogravimetric
analysis (TGA) and surface tension analysis of oil-in-water emulsions. The TEL performance as
surfactant in ester, n-paraffin and biodiesel based drilling fluids on the 70/30 and 60/40 water- oil
rations (WOR) was evaluated by comparative tests of two commercial products used in the fields.
These drilling fluids were aged in roller oven at 200 0
F during 16 h. The rheological and electric
stability measurements were carried out at 135 ?F, the phase separation was evaluated after seven
days at rest and the filtrate volume of drilling fluids was determined at high temperature and high
pressure. The rheological behavior of the drilling fluids was evaluated by the flow curves. The
results showed that the drilling fluids studied here presented Binghamian behavior as well as the
used in the oil fields. The laboratory tests showed that the TEL reduced the filtrate volume and
promoted the enhance of the thermal and mechanical stabilities.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20284 |
| Date | 12 February 2010 |
| Creators | Moreira, Giselle Pereira |
| Contributors | 18822851404, http://lattes.cnpq.br/7623147392470166, Souto, Carlos Roberto Oliveira, 28467809949, http://lattes.cnpq.br/5481020781565211, Amorim, Luciana Viana, 82696195404, http://lattes.cnpq.br/7209301206982076, Costa, Marta |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM QU?MICA, 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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