Challenge: Maintain constant bottomhole pressure while displacing between statically underbalanced and overbalanced drilling fluid systems used for drilling and tripping on narrow margin well
Solution: Use i-balance control system to perform dynamic pore pressure fingerprinting to verify overbalanced mud weight and use automated mud rollover to follow displacement pressure schedule developed by @balance managed pressure and underbalanced drilling services with VIRTUAL HYDRAULICS ECD and ESD management software and monitored with PRESSPRO RT real-time downhole performance measurement software
Results: Successfully completed 6 displacements between drilling fluids maintaining bottomhole pressure within a window of ± 0.11 ppg [±87 psi]