ABSTRACT
This chapter presents a method for assessing the time of onset of diapirism and salt flow-speed. The method can easily be tailored to thermal indicators other than vitrinite reflectance, enhancing the resolution of the thermal history, and constraining both the onset of salt rise as well as the speed. The Lulu-1 well from the Danish North Sea is used to illustrate the procedure. The chapter shows how this procedure operates for the case history of the salt diapir located beneath the Lulu-1 well in the Danish North Sea. Considerations of salt dynamics and the assessment of salt motion allow a reconstruction of the dynamical evolution of the Lulu salt diapir. For a given salt speed, predicted vitrinite reflectance values are calculated and compared with the observed values at given depths. The magnitude and spatial distribution of the temperature anomaly depend dominantly on the size, shape, and burial depth of the salt body.
