We present results for Newtonian laminar miscible displacement flows in a narrow, vertical,
eccentric annulus, obtained from experiments carried out in a scaled laboratory set-up …

Primary cementing involves displacing the drilling fluid from the annulus outside the casing
and replacing it by cement slurry. Incomplete displacement can compromise zonal isolation …

Laminar miscible displacement flows in narrow, vertical, eccentric annuli show a wide range
of interesting physical phenomena, eg static layers and channels, dispersive spikes/fronts …

We present a comprehensive study on the displacement flows of shear-thinning (power-law)
fluids in a vertical eccentric annulus, employing both experimental and computational …

We computationally study the effects of inner cylinder rotation on the laminar displacement
flow of two Newtonian fluids along a horizontal eccentric annulus. This flow arises in primary …

Cementation is an essential process in well drilling, which provides security and isolation for
following operations and for wells' long-life production. Irregularity of the wellbore makes …

Abstract Anywhere between 0%-80% of cemented wells have integrity failures, suggesting
both geological and operational factors. One way geology affects cementing is via irregular …

Abstract The substitution of Ordinary Portland Cement (OPC) by geopolymer materials for
sealing oil and gas wells has the potential to reduce the associated carbon footprint and …

Casing strings and liners are important subsurface structural components in petroleum and
in geothermal wells. After the casing string has been run in hole, it is cemented to the …

This thesis presents a comprehensive, yet practical, two-dimensional model for the
displacement of viscoplastic fluids in eccentric annuli in laminar, turbulent and mixed flow …