The Geothermal Gradient Map Of Central Tunisia- Comparison With Structural, Gravimetric And Petroleum Data
Journal Article: The Geothermal Gradient Map Of Central Tunisia- Comparison With Structural, Gravimetric And Petroleum Data
AbstractFive hundred and fifty temperature values, initially measured as either bottom-hole temperatures (BHT) or drill-stem tests (DST), from 98 selected petroleum exploration wells form the basis of a geothermal gradient map of central Tunisia. A "global-statistical" method was employed to correct the BHT measurements, using the DST as references. The geothermal gradient ranges from 23° to 49°C/km. Comparison of the geothermal gradient with structural, gravimetric and petroleum data indicates that: 1. (1) the general trend of the geothermal gradient curves reflects the main structural directions of the region, 2. (2) zones of low and high geothermal gradient are correlated with zones of negative and positive Bouguer anomalies and 3. (3) the five most important oil fields of central Tunisia are located near the geothermal gradient curve of 40°C/km. Such associations could have practical importance in petroleum exploration, but their significance must first be established through further investigation and additional data.
- Hamed Ben Dhia
- Published Journal
- Tectonophysics, 1987
Hamed Ben Dhia. 1987. The Geothermal Gradient Map Of Central Tunisia- Comparison With Structural, Gravimetric And Petroleum Data. Tectonophysics. (!) .