Flow Regime Calculator

The flow regime calculator predicts the flow regime of a gas liquid mixture in the annulus between the outside of a component and the inside of the casing.

Casing ID

The internal diameter of the casing the component is landed in.

Component OD

The outer diameter of the component for which the flow regime is calculated.

Liquid Rate

The annular flow rate of the liquid portion of the fluid mixture in barrels per day.

Gas Rate

The annular flow rate of the gas portion of the fluid mixture in thousand standard cubic feet per day.

Pump Intake Pressure

The pump intake pressure at the provided liquid and gas flow rates.

Gas Specific Gravity

The density of gas relative to air at standard temperature and pressure.

Bottom Hole Temp

The temperature of the fluid at bottom hole conditions.

Mole Frac N2

The number of moles of nitrogen in the gas as a fraction of the total.

Mole Frac CO2

The number of moles of carbon dioxide in the gas as a fraction of the total.

Mole Frac H2S

The number of moles of hydrogen sulfide in the gas as a fraction of the total.

Combined Velocity

The annular flow velocity of the gas-liquid mixture.

Slug Flow

A multiphase fluid flow regime characterized by a series of liquid plugs separated by relatively large gas pockets.

Bubble Flow

A multiphase fluid flow regime characterized by the gas phase being distributed as bubbles through the liquid phase.

Churn Flow

A multiphase flow regime in near-vertical pipes in which large, irregular slugs of gas move up the center of the annulus, usually carrying droplets of oil or water with the. Most of the remaining oil or water flows up along the pipe walls.

Annular Flow

A multiphase flow regime in which the lighter fluid flows in the center of the annulus, and the heavier fluid is contained in a thin film on the pipe wall. The lighter fluid may be a mist or an emulsion.

Superficial Gas Velocity

The velocity of the gas portion of the mixture moving through a pipe, defined as the volumetric flow rate of that gas divided by the cross-sectional area. In multiphase flow, it is not a physically real velocity but is a convenient parameter for analysis.

Superficial Liquid Velocity

The velocity of the liquid portion of the mixture moving through a pipe, defined as the volumetric flow rate of the liquid divided by the cross-sectional area. In multiphase flow, it is not a physically real velocity but is a convenient parameter for analysis.