Oil & Gas Terms in Category T

Tubing pump

A sucker rod pump in which the barrel is attached to the tubing.

See sucker rod pump.

Tungsten carbide

A fine, very hard, gray crystalline powder, a compound of tungsten and carbon.

This compound is bonded with cobalt or nickel in cemented carbide compositions and used for cutting tools, abrasives, and dies.

Tubulars

Shortened form of tubular goods.

Tubing spider

A device used with slips to prevent tubing from falling into the hole when a joint of pipe is being unscrewed and racked.

Tubing

Relatively small-diameter pipe that is run into a well to serve as a conduit for the passage of oil and gas to the surface.

Titration

A chemical analysis process where drops of a standard solution are added to another solution or substance to obtain a response: color change, precipitation, or conductivity change, for measurement and evaluation.

Toolpusher

An employee of a drilling contractor who is in charge of the entire drilling crew and the drilling rig.

Also called a drilling foreman,, rig manager, rig superintendent, or rig supervisor.

Trip

The operation of hoisting the drill stem from and returning it to the wellbore.

V: shortened form of “make a trip.”

Transfer

To lower pipe or tubing onto a downhole tool, transferring all or part of the hook load.

Torque

The turning force that is applied to a shaft or other rotary mechanism to cause it to rotate or tend to do so.

Torque is measured in units of length and force (footpounds, newton-meters).

Traveling valve

One of the two valves in a sucker rod pumping system.

It moves with the movement of the sucker rod string.

On the upstroke, the ball member of the valve is seated, supporting the fluid load.

On the downstroke, the ball is unseated, allowing fluid to enter into the production column.

Compare standing valve.

Toolhouse

A building for storing tools

Total depth (td)

The maximum depth reached in a well.

Trip gas

Gas that enters the wellbore when the mud pump is shut down and pipe is being pulled from the wellbore.

The gas may enter because of the reduction in bottomhole pressure when the pump is shut down, because of swabbing, or because of both.

Tongs

The large wrenches used to make up or break out drill pipe, casing, tubing, or other pipe; variously called casing tongs, pipe tongs, and so forth, according to the specific use.

Power tongs are pneumatically or hydraulically operated tools that serve to spin the pipe up tight and, in some instances, to apply the final makeup torque.