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 […]
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 […]
18 July 2017

Bail

A cylindrical steel bar (similar in form to the handle or bail of a bucket, but much larger) that supports the swivel and connects it to […]
18 July 2017

Bailer

A long, cylindrical container fitted with a valve at its lower end, used to remove water, sand, mud, drilling cuttings, or oil from a well in […]