Backfilling technology is recognized as a consensus to achieve green and safe developing
of mineral resources that could effectively fill the underground goafs using mine waste and …

During drilling operations, effective displacement of fluids can provide high-quality
cementing jobs, ensuring zonal isolation and strong bonding of cement with casing and …

Primary cementing of well casings is the operation where drilling fluid is displaced from the
annulus between the casing and the drilled rock formation and replaced by a cement slurry …

Wellbore irregularities turn the narrow eccentric annulus of primary cementing into a fully
three-dimensional (3D) flow geometry. Here we explore the effects of coupling the borehole …

We present results of 300 miscible Newtonian displacement flow experiments carried out in
a dimensionally scaled laboratory set-up. Annulus eccentricity, density difference and …

The quality of cement placement in primary cementing depends on many facets of the
cementing procedure. In this paper, we simulate the fluid displacement process of a typical …

Long-term zonal isolation is crucial for the development of fossil hydrogen energy, while
efficient filter cake removal is the basis for successful zonal isolation. However, enhanced …

The increasing share of renewable electricity in the grid drives the need for sufficient storage
capacity. Especially for seasonal storage, power-to-gas can be a promising approach …

We present the extension of an efficient and highly parallelisable framework for
incompressible fluid flow simulations to viscoplastic fluids. The system is governed by …

The well trajectory of horizontal wells are constantly changing due to the variation of well
inclination and azimuth with depth, leading to a large difference of displacement efficiency in …