The Department of Petroleum Resources in Nigeria awarded the Niger Delta pressure study to Sonar Nigeria Limited in association with Ikon GeoPressure. 

The study investigates:

• Distribution and control on overpressures.
• Trap integrity assessment – seal breach risking and top seal failure.
• Evidence for lateral transfer (leading to higher than expected pressures when drilling).
• Lateral drainage and implications for migration, hydrodynamic flow and tilted OWCs.
• Mechanisms of overpressure generation and pore pressure prediction from shales, including seismic-based prediction.
• Development of fracture and overburden pressure algorithms (to assist pre-drill prediction).