Carbonate Reservoir Geology

Who should attend?

Petroleum geologists, explorationists, petrophysicists, geophysicists and engineers involved with exploration of carbonate plays and development of carbonate reservoirs. Previous knowledge of carbonate sedimentology is not required.

Overview:

This course is designed to develop skills in understanding the geometry and petrophysical characteristics of carbonate reservoirs. Depositional fabric, grain type and size and subsequent diagenetic modifications are the major controls on carbonate reservoir behaviour. The complex inter-relationship of the depositional and burial history can be unravelled to allow prediction of reservoir facies and reconstruction of three-dimensional reservoir models. The course demonstrates the value of the reservoir model in volumetric assessment and development of carbonate reservoirs. Extensive practical sessions can utilise your own data or Robertson's extensive non-exclusive data.

Content:

• Carbonate reservoirs
  Basic principles; depositional concepts; grain types; textures and fabrics; environmental reconstruction.
• The reservoir model - depositional and diagenetic characteristics
  Sabkha/tidal flat; lagoon; shelf; reef (rudist and coral/algal); barrier/shoal; slope and redeposited; aeolian and lacustrine; karst plays.
• Carbonate diagenesis
  Primary and secondary porosity; compaction; pressure solution; cementation; dolomitisation; porosity generation and destruction; fractures.
• Carbonate sequence stratigraphy
  
• Log response in carbonate rocks
  Gamma; sonic; neutron; density; FMS.
• Reservoir assessment
  Fracture reservoirs; reservoir modelling; volumetric assessment in correlation and mapping; effects of capillary pressure; interface with engineering.

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