Abstract
Radial displacement of a non-wetting fluid (paraffin oil) by a wetting fluid (water) was studied in a consolidated porous medium for a wide range of flowrates. The effects of injection flowrate on the displacement pattern were observed photographically, and the volumetric oil recovery at the breakthrough condition was measured. The experimental results indicate that the recovery versus flowrate curve can be divided into three main regions: (1) a capillary regionat low flowrates where capillary forces are dominant; (2) a viscous regionat high flowrates where viscous forces are dominant; and (3) an intermediate stabilized regionwhere capillary and viscous forces are of comparable magnitude. The experimental data for the number of fingers are compared with theoretical predictions and the so-called wettability number is calculated. The results are finally compared with previous data for systems of reversed wettability and the differences, which are very significant, are discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
