DBPapers
DOI: 10.5593/SGEM2014/B13/S3.038

GEOTHERMAL RESERVOIR SIMULATION

A. Lipaev
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-09-4 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 3, 285-290 pp

ABSTRACT
The first step in geothermal simulation is laboratory study which involves determining thermal properties of the rock under conditions close to in-situ occurrence, and evaluation of reservoir and flow characteristics of the samples under study . The second step deals with collecting geophysical data from wells where core sampling for laboratory study was performed.The third step starts with defining in the field profile interlayers of different lithology, saturation and type of cement. Here, other essential properties are also taken into consideration. Logging data is compared with laboratory data, thus identifying the causes of possible interrelations. Then dependencies between thermal, flow and fluid storage properties are considered. The fourth step is the period when a site for thermal treatment is selected, and the section according to its thermal and flow properties, as well as fluid storage capacity, is considered. By doing this the curves for thermal conductivity, porosity, permeability and saturation are created. The fifth stage involves the study of changes in the thermal properties of the log, identification of the factors that influence the thermal front distribution around the wells, and determination of areas for improving thermal stimulation. Creating geothermal models makes it possible to achieve better results in formation treatment and reduces heat loss.

Keywords: heat treatment techniques, high viscous oil, heavy oil, heat models, reservoir, heat simulation.