18 July 2017

Catwalk machine

See Horizontal tubular transfer.
18 July 2017

Caving

The collapse of the walls of the wellbore; also called Sloughing.
18 July 2017

Cellar

A pit in the ground, usually lined with concrete or steel pipe, that provides additional height between the rig floor and the wellhead to accommodate the […]
9 November 2021

Cement Bond Log (CBL)

Measures integrity of cement bond between tubing/casing and well bore. The cement bond evaluation for large-diameter casing can be technically challenging because it can reach the […]