18 July 2017

Radioactivity well logging

The recording of the natural or induced radioactive characteristics of subsurface formations. A radioactivity log, also known as a radiation log, normally consists of two recorded […]
18 July 2017

Ram

The closing and sealing component on a blowout preventer. One of three types – blind, pipe, or shear – may be installed in several preventers mounted […]
18 July 2017

Ram blowout preventer

A ram BOP utilizes horizontally opposed hydraulic cylinders to move two horizontally opposed removable metal blocks, with replaceable elastomer seals, to seal off pressure below the […]
18 July 2017

Rate of penetration (ROP)

The rate at which the drill proceeds in the deepening of the wellbore. It is usually expressed in terms of ft per hour.