دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a sintered aluminum based proppant with very high strength, 3.2 g/cc density and high abrasion characteristics.

an estimation of the pumpability of a slurry. Has no direct correlation to viscosity.

n: a numerical ranking system that provides an estimate of the force of wind and the height of waves. Higherscale values correlate with higher forces.

n: a short cylindrical device installed in the drill stem between the bottom most drill collar and a downhole motor. Its purpose is to deflect the downhole motor off vertical to drill a directional hole. See drill stem.

a short section of a tool or pipe that is formed at an angle or is modified downhole by a motor to assist in entering deviated wellbores or drilling off the path of the wellbore.

n: a colloidal clay, composed primarily of montmorillonite, that swells when wet. Because of its gel-forming properties, bentonite is a major component of waterbase drilling muds. See gel, mud.

a reference to colloidal clay (generally montmorillinite or smectite),generates plastic viscosity due to clay behavior, size and electrostatic layer. A slurry of which used for P&A Purposes will weigh no less than 9 ppg.

n pi: a group of polymers that can maintain or increase the viscosity of bentonite while flocculating other clay solids in the mud. With bentonite extenders, desired viscosity can often be maintained using only half the amount of bentonite that would otherwise be required.