18 July 2017

Autoshear

A safety system that is designed to automatically shut-in the wellbore in the event of an unintended disconnect of the LMRP. NOTE: When the Autoshear system […]
18 July 2017

Back off

To unscrew one threaded piece (such as a section of pipe) from another.
18 July 2017

Back up

To hold one section of an object such as pipe while another section is being screwed into or out of it.
25 July 2017

Back-up tong

A tong suspended in the derrick, normally on the driller’s right, used to hold box end of the joint (lower half) while the pin end (upper […]