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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

Caracteriza??o de ?gua produzida na ind?stria de petr?leo para fins de descarte e otimiza??o do processo de separa??o ?leo/?gua / Characterization of produced water in the oil industry for disposal and optimization of oil water separation.

Carvalho, Patr?cia Cristina de Ara?jo Puglia de 17 March 2011 (has links)
Made available in DSpace on 2014-12-17T15:01:25Z (GMT). No. of bitstreams: 1 PatriciaCAPC_DISSERT.pdf: 2049685 bytes, checksum: 4c9ec78c3f529e6af4cdef29256d6275 (MD5) Previous issue date: 2011-03-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The oil industry has several segments that can impact the environment. Among these, produced water which has been highlight in the environmental problem because of the great volume generated and its toxic composition. Those waters are the major source of waste in the oil industry. The composition of the produced water is strongly dependent on the production field. A good example is the wastewater produced on a Petrobras operating unit of Rio Grande do Norte and Cear? (UO-RNCE). A single effluent treatment station (ETS) of this unit receives effluent from 48 wells (onshore and offshore), which leads a large fluctuations in the water quality that can become a complicating factor for future treatment processes. The present work aims to realize a diagnosis of a sample of produced water from the OU - RNCE in compliance to certain physical and physico-chemical parameters (chloride concentration, conductivity, dissolved oxygen, pH, TOG (oil & grease), nitrate concentration, turbidity, salinity and temperature). The analysis of the effluent is accomplished by means of a MP TROLL 9500 Multiparameter probe, a TOG/TPH Infracal from Wilks Enterprise Corp. - Model HATR - T (TOG) and a MD-31 condutivimeter of Digimed. Results were analyzed by univariated and multivariated analysis (principal component analysis) associated statistical control charts. The multivariate analysis showed a negative correlation between dissolved oxygen and turbidity (-0.55) and positive correlations between salinity and chloride (1), conductivity, chloride and salinity (0.70). Multivariated analysis showed there are seven principal components which can explain the variability of the parameters. The variables, salinity, conductivity and chloride were the most important variables, with, higher sampling variance. Statistical control charts have helped to establish a general trend between the physical and chemical evaluated parameters / A ind?stria do petr?leo possui v?rios segmentos que podem impactar o meio ambiente. Dentre eles, a ?gua de produ??o, tem ganhado destaque na problem?tica ambiental em virtude do grande volume gerado e de sua composi??o t?xica, sendo esta uma das maiores fontes de res?duos da ind?stria do petr?leo. A composi??o da ?gua de produ??o ? fortemente dependente do campo produtor. Um bom exemplo ? a ?gua produzida na Petrobras-Unidade Operacional do Rio Grande do Norte e Cear? (UO-RNCE). Uma ?nica ETE (Esta??o de Tratamento de Efluente) desta unidade recebe efluentes de 48 po?os (onshore e offshore) o que leva a grandes varia??es na qualidade da ?gua resultando em um complicador aos futuros processos de tratamento.O presente trabalho tem como objetivo realizar um diagn?stico de uma amostra da ?gua produzida proveniente da UO RNCE em observ?ncia a determinados par?metros f?sicos e f?sico-qu?micos (concentra??o em cloreto, condutividade, oxig?nio dissolvido, pH, TOG (Teor de ?leos e graxas), concentra??o em nitrato, turbidez, salinidade e temperatura). A an?lise do efluente foi realizada por meio de uma Sonda Multiparam?trica modelo MP TROLL 9500, atrav?s do Infracal TOG/TPH da Wilks Enterprise Corp Modelo HATR T (TOG) e ainda fazendo uso do condutiv?metro da Digimed, MD 31. Os dados foram tratados atrav?s de an?lise estat?stica univariada e multivariada (an?lise de componentes principais) associada os gr?ficos de controle estat?stico. A an?lise estat?stica multivariada mostrou correla??es negativas entre oxig?nio dissolvido e turbidez (-0,55) e correla??es positivas entre salinidade e cloreto (1), condutividade, cloreto e salinidade (0,70). A an?lise multivariada indicou os sete componentes principais que podem explicar a variabilidade dos par?metros. As vari?veis, salinidade, cloreto e condutividade foram as vari?veis mais importantes, ou seja, de maior vari?ncia amostral. Com gr?ficos de controle estat?stico foi poss?vel estabelecer uma tend?ncia geral entre os par?metros f?sico-qu?micos avaliados

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