Programa de Pós-graduação em Engenharia Elétrica e da Computação

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    Cálculo de geopressões utilizando transformações de domínio
    (Universidade Federal de Goiás, 2016-10-26) Silva, U. F; Calixto, W. P.; http://lattes.cnpq.br/9073478192027867; Calixto, W. P.; http://lattes.cnpq.br/9073478192027867; Souza, Flávio Raimundo de; Oliveira, Marco Antônio Assfalk de; Oliveira, Eider Lúcio de; Cruz Junior, Gélson da
    The purpose of this work is to calculate the Surge and Swab geopressures inside eccentrics wells. There is eccentricity between the drill string and the well. The traditional theory to calculate these geopressures considers that the drill string and the well remain concentric throughout the process, which does not occur in reality. The analysis of this phenomenon is carried out, in which the fluid is confined between the two cylinders, the drill string and the well. The conformal mapping are used to transform the eccentric domain in concentric domain and thus find the real values of geopressures. The results obtained using the proposed methodology are presented and discussed.