Device for determining of selected properties, in particular the viscosity, of drilling mud or. Drilling capacity of the flue signal during the drilling work

摘要

Disclosed is a system for automatically and continuously measuring and producing a continuous record of apparent viscosity, plastic viscosity and yield point for mud systems during a well drilling operation. Also, a continuous record of the ratio of plastic viscosity to yield point values is obtained by the system. Two viscosity determining units are synchronized relative to one another so that their outputs may be used and combined to obtain the above mentioned parameters. Each unit is comprised of a type of Fann viscometer having a sampling cup with a bottom inlet and an open top where overflow may occur. The speed of rotating cylinders in the respective sampling cups, synchronized relative to one another so that when one viscometer operates at 300 rpm the other viscometer operates at 600 rpm, and the outputs of the viscometers can be electronically combined to yield apparent viscosity, plastic viscosity and yield point, as well as the plastic viscosity-yield point ratio.