- Frequency-domain EMP Defectoscopy
- Leak Temperature Logging
- Leak Tracer Test
- Multiphase Pipe Flow
- Pressure Profile in Gas-Liquid Steady-State Pipe Flow @model
- q-weighted average
- Table Dataset (numerical)
- Tangible Asset (Finance)
- Tank Depletion @model
- Tax (Finance)
- Taxable Income (Finance)
- Taxpayer
- TDS
- Technical Papers
- Technology Management
- Tectonics
- TEMP (Temperature Logging Tool)
- Temperature (physical property)
- Temperature Cement Logging
- Temperature Flat Source Solution @model
- Temperature logging
- Temperature Profile in Homogenous Stationary Pipe Flow @model
- Temperature Profile in Homogenous Stationary Pipe Flow Analytical Ramey @model
- Temperature Profile in Pipe Flow @model
- Temperature Profile in Wellbore Injection Homogeneous Flow Analytical @model
- Temperature Profile in Wellbore Production Homogeneous Flow Analytical @model
- Ternary Phase Diagrams
- Thermal Conduction
- Thermal Conductivity
- Thermal Convection
- Thermal diffusivity
- Thermal equilibirum
- Thermal expansion coefficient = α
- Thermal fluid properties @model
- Thermal rock properties @model
- Thermoanemometer
- Thermodynamic equilibrium
- Thermodynamic potential
- Thermodynamic process
- Thermodynamics
- Thermodynamics equations
- Thermodynamic system
- Thief injection
- Thief production
- Threshold pressure gradient (TPG)
- Throttling process
- Throttling Temperature effect
- Through Casing Pressure (TCP)
- Thrust Fault Structure
- Tidal Pressure @ model
- Tide
- Time
- Time (space-time continuum coordinate)
- Time-domain EMP Defectoscopy
- Time-weighted Productivity Plot = t-weighted J-plot
- Tonne
- Tonne (mass) = t
- Tonne (oil quantity measure)
- Tonne of oil equivalent = TOE
- Toolstring
- Total compressibility @model
- Total compressibility = ct
- Total Investment (It)
- Total multiphase fluid mobility
- Total porosity
- Total Revenue
- Total sandface flowrate = qt
- Total Sandface Productivity Index (Jt)
- TR
- Tractor logging
- Training dataset
- Trajectory (wellbore or pipeline)
- Transitional flow regime
- Transition Process
- Transmissibility
- Transportation Pipeline
- Travel Time (of seismic wave)
- Trial Production Petroleum Field
- Triple Point (Thermodynamics)
- True Vertical Depth (TVD)
- True Vertical Depth Sub-Sea = TVDss
- True Vertical Direction
- Tubing (TBG)
- Tubing Head (TBF)
- Tubing Head Pressure (THP or Ps)
- Tubing Performance Relation = TPR
- Tubing shoe
- Turbulent flow regime
- t-weighted average
- Two-phase Pipe Flow
- TWT (Two Way Time)