Geothermics 57 (2015) 73–83 Contents lists available at ScienceDirect Geothermics journal homepage: www.elsevier.com/locate/geothermics Improved method for estimating static formation temperatures in geothermal and petroleum wells a,b,∗ c a J.A. Wong-Loya , J.A. Andaverde , J.A. del Rio Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Priv. Xochicalco s/n, Col. Centro, Temixco, Morelos 62580, Mexico Colegio de Ciencias y Humanidades, Plantel Vallejo, Universidad Nacional Autónoma de México, Av Cien metros s/n, Col. Magdalena de las Salinas, D.F. México, Mexico Centro de Investigación en Recursos Energéticos y Sustentables, Universidad Veracruzana, Av. Universidad Veracruzana Km. 7.5, Coatzacoalcos, Veracruz, Mexico article info abstract Article history: This paper describes a mathematical method for estimating static formation temperatures using a func- Received 3 March 2015 tion based on extrapolation of the measured data in the thermal recovery process of geothermal and Accepted 2 June 2015 petroleum wells. This method uses the least squares ﬁt of a rational polynomial model to describe the Available online 26 June 2015 transient temperature data and also provides an analytical expression of thermal recovery processes. This expression gives the asymptotic value for ﬁnal temperature. We then apply this method for estimating Keywords: static formation temperatures of a geothermal and
Geothermics – Elsevier
Published: Sep 1, 2015
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