Determination of fluid-flow zones in a geothermal sandstone reservoir using thermal conductivity and temperature logs

作者：Haffen Sebastien^*; Geraud Yves; Diraison Marc; Dezayes Chrystel

来源：Geothermics, 2013, 46: 32-41.

DOI：10.1016/j.geothermics.2012.11.001

• Geothermal
• Thermal gradient
• Thermal conductivity
• Permeability
• Sandstone reservoir
• Fluid circulation

A new methodology for locating fluid-flow zones in a rock formation is proposed and applied to the Buntsandstein sandstone reservoir penetrated by borehole EPSI, Soultz-sous-Forets, France. The method is based on analyzing thermal gradients obtained by two different methods for the same cored borehole, (1) from temperature log and (2) from thermal conductivity measurements. Comparing the two thermal-gradient datasets reveals the fluid-circulation zones in the borehole. Using this approach, we identified three main hot-fluid circulation zones within the Buntsandstein reservoir, two controlled by sedimentary facies and one controlled by tectonic structures.

• 出版日期2013-4