The petroleum industry must predict pore-pressure profiles accurately, often walking a fine line between pore pressure and fracture gradient as it drills and completes oil and gas wells. The industry ...

Well control maintains bottomhole pressure within the safe window between formation pore pressure and fracture pressure to prevent influxes (kicks), blowouts, and formation breakdown during drilling, ...

Minimum overbalance on the well reduced losses and CBHP-control balanced cap rock pore pressure regardless of pump pressure. Drilling was based on most likely (ML) and commitment case (CC) pore and ...