A calibrated funnel commonly used in field tests to determine the viscosity of drilling mud.

A portable derrick that is capable of being raised as a unit, as distinguished from a standard derrick, which cannot be raised to a working position […]

A device that fits into the rotary table to accommodate the slips and drive the kelly bushing so that the rotating motion of the rotary table […]

MASP is the calculated maximum internal pressure that the blow-out preventer (BOP) and related equipment will be subject to while conducting well operations. MASP establishes pressure […]