18 July 2017


A stand of pipe made up of three joints and handled as a unit. Compare single, double, and fourble.
25 July 2017

Thribble board

The name used for the derrickman’s working platform, the monkeyboard, when it is located at a height in the derrick equal to three lengths of pipe […]
18 July 2017

Throw the chain

To flip the spinning chain up from a tool joint box so that the chain wraps around the tool joint pin after it is stabbed into […]
18 July 2017

Tight formation

A petroleum- or water-bearing formation of relatively low porosity and permeability.