Tuesday, January 19, 2016

Basin Thermal History

The thermal history of sedimentary basins is of great interest to petroleum geologists because the hydrocarbon maturation process is controlled primarily by the temperature the source rock has experienced since its deposition.

Researchers mathematically constrain the sedimentary thermal history by building a physical model that simulates the process whereby the sediments become gradually heated by geothermal heat as they are deposited, buried and compacted over time. The researcher must have detailed knowledge of the sedimentation history, the thermal properties of the sediments, and the regional geothermal heat flux in order to reconustruct the thermal history of the basin of interest.

To determine maturity of potential source-rock intervals, 1-D, 2-D or 3-D models are constructed and calibrated. To calibrate these models, corrected bottom-hole temperatures or sediment surface heat flow measurements are needed.

No comments:

Post a Comment