Managed Pressure Drilling (MPD)

Overview Library

Improve management of downhole pressure

MPD provides a closed-loop circulation system in which pore pressure, formation fracture pressure, and bottomhole pressure are balanced and managed at surface. Drilling fluid is supplemented by surface backpressure, which can be adjusted much faster in response to downhole conditions compared with changing mud weights conventionally. 

Although it originated as a solution to “undrillable” wells, today wells of all types can use the technique to manage critical downhole pressures more effectively, leading to improved drilling efficiency and enhanced safety.

Equip the rig or call out services

Our equipment and experts provide reservoir-to-flare services, from planning the well to handling mud and gas as they flow to surface. OEM equipment is also available for rental or sale. 

Depending on your requirements, we can prepare rigs to accept the appropriate MPD equipment, install and commission the equipment, or both—for a specific well or to increase the capabilities of your rig. We can analyze, plan, and execute MPD programs while working with and training your personnel—both offshore and on land. In addition, specialized services are available for deepwater and high-efficiency land operations.

Deepwater MPD Integrated Solution

Mobile MPD Services

For high-volume or pad drilling scenarios, trailer- or skid-mounted systems rapidly integrate MPD components into the drilling operation.

Project Management & Consulting Services

M-I SWACO professionals partner with you on projects through specification, planning, installation, and operation to ensure optimal MPD performance.


Each component of our pressure control equipment portfolio is designed to meet a wide array of drilling challenges while satisfying stringent performance requirements.

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  • Drilling with constant bottomhole pressure (CBHP)
  • Deepwater drilling
  • Pressurized mud cap drilling (PMCD)


  • Optimize ROP
  • Decrease mud losses, stuck pipe incidents, NPT
  • Reduce ballooning
  • Achieve early kick and loss detection
  • Navigate narrow mud weight windows
  • Improve wellbore stability
  • Set casing deeper or completely eliminate casing strings

Rig Integral MPD Equipment & Services

Rig Integral MPD Equipment and Services
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MPD Process Flow Diagram

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