Foam Column Density Calculator

The foam column density calculator uses fluid shot data to determine the pump ability of the annular fluid.

Pump/Separator TVD

True vertical depth of the bottom hole separator, or in the absence of a separator, the bottom hole pump.

TVD of Foam Column Top

True vertical depth of the top of the foam column, as found on the fluid shot report.

Equivalent Gas Free Liquid Above the Pump

The hydrostatic pressure of gas free liquid in the annulus above the pump equivalent to the hydrostatic pressure exerted by the annular fluid.

Oil API Gravity

Density of the produced oil measured in degrees API gravity.

Oil Rate

Daily oil production measured in barrels per day.

Water Specific Gravity

Density of the produced water relative to pure water.

Water Rate

Daily water production measured in barrels per day.

Foam Above the pump

Vertical height of the foam column above the pump.

Hydrostatic Pressure of Foam Column

Hydrostatic pressure exerted by the foam column, measured at the separator or pump intake.

Average Gradient of Foam Column

Because foam is compressible the pressure gradient of the foam column increases with depth, the average foam column gradient is the hydrostatic pressure of the foam column divided by the vertical height of the foam column.

Pressure Gradient of Foam at the Pump

The pressure gradient of the foam column measured at the pump intake.

Gas Free Fluid Specific Gravity

The density of the liquid portion of the fluid measured relative to pure water.

Gas Free Fluid Gradient

The pressure gradient of the liquid portion of the fluid.

Minimum Pumpable Fluid Gradient

This is the minimum pressure gradient of the fluid at the pump that can be pumped effectively.

Current Fluid Gradient

This is the current pressure gradient of the fluid at the pump.

Precent of Gas Free Fluid Gradient

This is the current fluid gradient measured as a percentage of the gas free fluid gradient.