Water displacing oil is one of the main emptying methods for mobile pipelines. It has the
advantages of being a simple process and highly safe. At present, the determination of a …

Residual oil films on pipe walls are a common occurrence in industrial processes, and their
presence can significantly impact system efficiency and performance. However, the …

We examine immiscible displacement flows in stationary and rotating pipes, at a fixed
inclination angle in a density-unstable configuration, using a viscoplastic fluid to displace a …

The effective removal and displacement of fluids is important in many industrial and
environmental applications, such as for operation and cleaning of process equipment, fluid …

We experimentally study buoyant immiscible displacement flows in an axially rotating pipe,
with varying flow parameters, such as the mean imposed flow velocity, density difference …

In this work, we study the ascent dynamics of a liquid Taylor drop formed from a lock-
exchange configuration in a closed vertical pipe. We focus on the buoyancy-driven motion of …

In the process of water displacing oil within mobile pipelines, it is common that the oil tends
to accumulate at the elevated sections of inclined pipelines, leading to an issue of residual …

We experimentally study the displacement flow of a non-Newtonian yield-stress fluid by an
immiscible Newtonian one in an inclined pipe. The pipe has a small diameter-to-length ratio …

The front velocity in miscible exchange flow along the straight and curved tubes has been
investigated. Almost the entire flow lies within the range of inertia dominated regime in the …

The abandonment protocols of oil and gas wells may vary among regions and countries.
Most commonly, however, two or more cement plugs are placed along the well for this …