..., the following can be determined: Effective annular viscosities at any pump rate and for any flow properties. Flow type (laminar or turbulent). Accurate annular pressure losses. Approximate bit nozzle shear rates. Upper and lower limits on both flow properties and pump rates for optimum well bore...

... type Reservoir Characterization rock composition boundarycondition porosityat deposition dimensionally followingobservation Overton Wellbore Design strength viscosity rock strength tooth reservoir geomechanics haroldl triangularteeth composition Drilling pressuredifferential...

... Reservoir Characterization variation laboratory Queen thesis Upstream Oil & Gas viscosity plane rheological consideration equation Kingston Interferometry multiple-beam interferometry University rock behavior directionalproperty coefficient limestone structural viscosity...

... fluid property filter paper filtration compressible cake viscosity particle size filter cake permeability straight line Cake Filtration SOCIETY OF PETROLEUM ENGINEERS OF AIME 6200 North Central Expressway Dallas, Texas 75206 PAPER NUMBER SP E 16 9 4 THIS IS A PREPRINT SUBJECT TO CORRECTION...

... and 1947 with an anachronistic penetration into the present. It is characteristic of the sodium mud era that most of the thinking revolved around the properties of bentonite. Drilling mud additives were evaluated in terms of their ability to reduce the viscosity of hydrated bentonite suspensions...