Sedimentology and Diagenesis of the Dense Zones Above and Below a Limestone Reservoir of the Kharaib Formation Lower Cretaceous, Abu Dhabi Available to Purchase

The "dense zones" (intervals of very low porosity) separating Lower Cretaceous reservoir zones have been studied in cores from a giant onshore oilfield. The topics addressed in this paper include the nature of gamma ray (GR) activity in the dense zones, lithofacies, the nature of bedding and depositional cycles, lateral variation in thickness and porosity within the field studied, the timing of porosity loss, and the causes of the very low porosity of the dense zones.