دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the standard unit of measurement for neutron logs. Standardisation of this unit results from the calibration of each logging tool model in the API neutron test pit at the University of Houston.

a rheological model used to describe flow in some fluids. Bingham fluids have a linear shear stress, shear-rate behavior after an initial shear-stress boundary has been crossed. Plastic viscosity or PV is the slope of the line. Yield Point is the threshol

n: A kind of flow pattern of fluid obey Casson flow equation.

n: an accessory attached to the top of the casing to facilitate cementing of the casing. It has passages for cement slurry and retainer chambers for cementing wiper plugs. Also called retainer head.

n: The servicing unit installed in the top of casing string for cementing. It is installed with rubber plug and connected with cement injection line.

a device attached to the top of the casing that allows connection of the flush and cement lines and allows plugs to be dropped. Special models may allow the cement to be rotated during cementing.

n: A set of adjustable and controllable variables for building mathematical model of drilling in optimized drilling technology.