WCS Glossary
- Planned Limit
- Plastic Fluid
- Plastic Viscosity
- PLC
- Plug
- Plug Back
- Plug Valve
- Pocket (unloader)
- Polymer
- Pore Pressure
- Porosity
- Positive Choke
- Positive Test
- Potential Energy
- Potential or Head Energy
- Pounds Per Gallon (PPG)
- Pour Point
- Power Factor
- Power (p)
- Predictive Model
- Pressure
- Pressure Base (DATUM)
- Pressure Control
- Pressure Control Equipment (PCE)
- Pressure Control Equipment (PCE) Safety Margin
- Pressure Control Valve (PCV)
- Pressure Deployment
- Pressure Gradient
- Pressure Loss
- Pressure Relief Valve (PRV)
- Pressure Transient
- Pressure Transmitters
- Pressure Vessel -Phase Separation
- Pressurizable Mud Returns
- Pressurized Mud Cap Drilling (PMCD)
- Pressurized Mud Cap Drilling (PMCD)
- Pressurized Surge Tank
- Primary Barrier
- Primary Cementing
- Primary Location Instruments
- Primary Well Control
- Proactive MPD
- Process Disturbances
- Production
- Production Rig
- Productivity Index
- Propane
- Proportional Integral Derivative (PID)
- Proppant
- Pseudoplastic Fluid