GEOTHERMAL (HEATFLOW) MAP OF THE SOUTH SUMATRA BASIN
Our initial study will focus on the southern region of Sumatra and covers an area roughly 200km2. Bottom hole temperatures (BHT) will only be used from wells deeper than 100m. Preliminary analyses suggest the map will be based on more than 500 BHT points. When available, geothermal spring data will be incorporated into the map. Contouring and gridding will be completed using Golden Software ® program Surfer.
In 2011, Indonesia ranked 21st globally in oil production, with most of the oil produced in Sumatra. The region has been subjected to intense tectonic activity, specifically subduction of the Indian-Australian Plate under the Sunda Plate and rifting. The area contains a large number of structural-rift basins, ideal for oil accumulation, however, it is complicated by volcanism and geothermal activity. As such, a geothermal (heat flow) map of the region is important not only for petroleum exploration, but also for mineral exploration and alternative (geothermal) energy development.