Tadpole plot
Tail
Tar
Tar sand
Tattle-tale
TC
TD
TDS
Tectonic
Televiewer
Telluric currents
Temperature
Temperature gradient
Temperature log
Terrain correction
Tertiary recovery
Test film
Test loop
Test pill
Test set
Thermal conductivity
Thermal decay time
Thermal (Neutron) Decay Time Log
Thermal diffusivity
Thermal expansion
Thermal gradient
Thermal Multigate Decay Log
Thermal neutron
Thermal relaxation time
Thermistor
Thermocouple
Thief zone
Third curve
Thixotropy
Thumper
Tic-mark
Tidal correction
Tight
Tight hole
Time-average relationship
Time constant
Time-depth integration
Time-since-circulation
Tool
Tool error
Toolpusher
Torpedo
Tortuosity
Total depth
Total dissolved solids
Total porosity
Trace
Tracer
Tracer log
Track
Transducer
Transition profile
Transition zone
Transit time
Transit-time integration
Transmitter
Transmutation
Transverse wave
Trap
Traveling block
Travel time
Treat
Trip
True bed thickness
True resistivity
True vertical depth
True vertical depth log
Trumpet log
Tube wave
Tubing
Tubing head
Tubing pressure
Tuff
Turbidite
Turbidity current
Turbodrill
Turbulent flow
Turnkey contract
TVD