WCS Glossary
- Tri-axial
- Trip
- Trip Gas
- Trip Margin
- Trip Sheet
- Tubing
- Tubing Displacement
- Tubing Head
- Tubular Buckling
- Tubular Goods
- Tungsten Carbide
- Tuning
- Turbine Meter
- Turbodrill
- Turbulent Flow
- Twist Off
- Two-Phase Flow
- U-Tube
- UBD Zone
- Ultimate Potential
- Ultraviolet Light
- Unconfined Compressive Strength (UCS)
- Underbalance
- Underbalanced
- Underbalanced Drilling
- Underbalanced Drilling (UBD)
- Underbalanced Operation (UBO)
- Underream
- Unloader
- Unsupported Length
- Upsurge
- Valence
- Valve
- Valve Actuators – General
- Valve Actuators Hydraulic/Electro-hydraulic
- Valve Actuators Manual
- Valve Actuators Pneumatic
- Valve Flow Coefficient
- Valve Position Indicators
- Valve Positioners
- Vapor Pressure
- Vaporization
- Variable Frequency Drive (VFD)
- Variable Speed Drive
- Velocity
- Velocity Transients
- Vena Contracta
- Venting (gases)
- Vertical Centrifugal Pump
- Vertical Inline Pumps