This uses the injection of gas into the fluid stream which reduces the fluid density and lowers the bottom hole pressure.

If however the fluid density was not adequate or fluids were lost to the formation, then there was still a significant risk of a well blowout.

Temperature fluctuations change the value of fluid density, while location can affect gravity.

Volumetric flow rate is the mass flow rate divided by the fluid density.

Where is the fluid density and is the fluid pressure.

Above, is the fluid density, u is a velocity vector, and t is time.

The driving force for natural convection is buoyancy, a result of differences in fluid density.

The most common reason for insufficient fluid density is drilling into unexpected abnormally pressured formations.

Water freely permeates the whole ball, adding more weight and dynamic fluid density.

At the so-called Lambda temperature, where the normal fluid density equals the total density, the helium-4 is no longer superfluid.