Open AccessEstimate of Geopressures using Conformal Mapping in Eccentrical Wellbores
Author(s) -
Uyara Ferreira Silva,
Santiago Lemos,
Manoel Ivany de Queiroz Júnior,
Wesley P. Calixto,
Nikholas Segatti,
Geovanne P. Furriel,
Alan Henrique Ferreira Silva
Publication year - 2017
Publication title -
transactions on environment and electrical engineering
Language(s) - English
Resource type - Journals
ISSN - 2450-5730
DOI - 10.22149/teee.v2i2.92
Subject(s) - drill string , conformal map , concentric , casing , eccentricity (behavior) , eccentric , geology , string (physics) , wellbore , oil well , mechanics , domain (mathematical analysis) , mathematics , drill , geometry , physics , engineering , mathematical analysis , petroleum engineering , structural engineering , mechanical engineering , theoretical physics , political science , law
The purpose of this work is to calculate Surge and Swab pressure in oil wells with eccentricity between drill string and wellbore or casing string. Analysis of this phenomenon, in which the fluid is confined between two eccentric cylinders, are made. The conformal mapping is used to lead the eccentric domain into the concentric domain, since the usual models correspond to concentric geometries. The results of this study, using the proposed methodology, are presented and discussed.