Managed surface drilling ( MPD ) can provide several benefits for drilling operations , particularly those in deepwater , under high pressures or high temperatures , or with narrow pressure margins . The change from conventional drilling to MPD operations , however , must be covered by policy and procedure to ensure success . An MPD system provides more accurate well - control - event - detection techniques , while offering traditional downhole - event - detection processes . It can provide faster and more accurate control of bottomhole pressure . It covers a range of methods , including pressurised - drill - cap drilling , riser - gas - handling capabilities , and applied - surface - back pressure , and introduces a closed - loop circulation system to rig setups that enable the enhancement of second - barrier equipment .
Managed pressure drilling (MPD) can provide several benefits for drilling operations, particularly those in deepwater, under high pressures or high temperatures, or with narrow pressure margins. The change from conventional drilling to MPD operations, however, must be covered by policy and procedure to ensure success. An MPD system provides more accurate well-control-event-detection techniques, while offering traditional downhole-event-detection processes. It can provide faster and more accurate control of bottomhole pressure. MPD covers a range of methods, including pressurised-mud-cap drilling, riser-gas-handling capabilities, and applied-surface-back pressure, and introduces a closed-loop circulation system to rig setups that enable the enhancement of second-barrier equipment.