Oman Palaeokarst Research
Dissolution associated with sub-aerial exposure is thought to be responsible for much of the secondary porosity in the Cretaceous carbonate reservoirs of NE Arabia. However, the location of these sub-aerial exposure surfaces in time and space has not been well documented. Outcrops in the Central Oman Mountains provide an excellent opportunity to detect the existence of sub-aerial exposure surfaces and understand the potential influence of the exposure surfaces on reservoir development.
Map of Region
Work in this region builds on two CASP field seasons in 2002 and 2003 in the Adam Foothills along the southern front of the central Oman Mountains. This work and subsequent laboratory analysis has revealed evidence for palaeokarst and sub-aerial exposure at several levels in the Natih, Shu’aiba and Lower Kharaib formations. These surfaces are linked with the development of enhanced porosities.
Most Recent Reports
- Laboratory study on the distribution of subaerial exposure features & porosity development in Cretaceous carbonate reservoirs, Central Oman CASP.PMAP.II.4
- Distribution & quantification of subaerial exposure features in Cretaceous carbonate reservoirs, Central Oman CASP.PMAP.II.3
- Petrographic study of the palaeokarst & diagenetic alteration in Cretaceous carbonate reservoirs, Central Oman CASP.PMAP.2
- Palaeokarst and diagenetic alteration in Cretaceous carbonate reservoirs of North-East Arabia CASP.PMAP.1