... Abstract The rheological properties of drilling fluids are crucial parameters in offshore operations, especially in the extreme conditions encountered during deepwater drilling. Oil based muds (OBM) are almost exclusively used in deepwater drilling operations, owing to such factors...

... the same analyses, optimized designs for improvement of the displacement process in any specific situation are proposed. The influence of density, rheological properties, surface tension, and flow rate of the fluids on the instability and shape of the interface, and consequently on the displacement...

... and materials fly ash stability modifier geopolymer drilling fluid property Upstream Oil & Gas rheological property geopolymer SBM blend drilling fluid selection and formulation casing and cementing cementation compressive strength drilling fluid chemistry drilling fluid formulation strength...

... is inevitable, because the fluids are in contact via a contacting interface. The stability of this interface depends on many parameters, such as flow rate, pipe size, inclination, displacing and displaced fluid rheological properties, as well as densities, interfacial tension between the fluids, etc. Therefore...

... Abstract Accurate measurement of drilling fluid rheological properties is essential in order to optimize wellbore construction, and in particular to properly manage hydraulics. It becomes even more crucial during deepwater drilling when a "narrow mud window" is present which may require the use...