Robertson-Stiff rheological model in fracture flow
Peer reviewed, Journal article
Published version

Åpne
Permanent lenke
https://hdl.handle.net/11250/3041449Utgivelsesdato
2022Metadata
Vis full innførselSamlinger
Originalversjon
10.1016/j.petrol.2022.110935Sammendrag
Robertson-Stiff rheological model has been recently shown to provide a more accurate description of a drilling fluid than the Herschel-Bulkley model. In this short communication, a relation between the pressure gradient and the average fluid velocity in a fracture is derived for the Robertson-Stiff model. Practical use of the model is demonstrated using an example of one-dimensional radial flow with a Robertson-Stiff fluid displacing a Newtonian fluid in a horizontal fracture.