Time to Pump Deadweight Tonnage

The Time to Pump Deadweight Tonnage calculator computes the time required to pump a volume of fluid based on the DWT, pump rate and density of fluid.

INSTRUCTIONS: Choose units and enter the following:

• (DWT) Deadweight of Oil
• (PFR) Pump Rate (e.g. 20,000 barrels/hour)
• (OD) Oil Density

Time to Pump (t): The calculator returns the pump time in days, hours and minutes and the volume pumped in barrels.  However these can be automatically converted to many compatible units (e.g. seconds, hours, days) via the pull-down menu.

The Math / Science

The volume of oil can be computed based on the deadweight tonnage and density of oil, which is affected by atmospheric conditions, especially temperature (see below).

V = DWT / OD

where:

• V = Volume of Oil
• DWT = Deadweight Tonnage
• OD = Oil Density

The formula to compute the time required to pump a volume of liquid is:

T = V/PFR

where:

• T = Time to Pump
• V = Volume of liquid to be pumped
• PFR = Pump Volumetric Flow rate

The issue that most people encounter is with units.  Some pumps are measured in gallons per minute.  Others in gallons per hour, and still others in barrels per day.  This calculator performs automatic unit conversions to provide correct answers in the desired units.

Density of Crude Oil:

• Crude at (48° API): 790.0 kg/m³
• Crude at (40° API): 825.0 kg/m³
• Crude at (35.6° API): 847.0 kg/m³
• Crude at (32.6° API): 862.0 kg/m³

Pumping Calculators

• Volume Pumped over time by Pump Flow-rate
• Time to Pump Deadweight Tonnage: Computes time to pump an amount of oil measured by DWT at a pumping rate.   It also returns the volume pumped in barrels.
• Time to Pump Volume by Flow-rate: Computes the time to pump an amount of fluid (e.g., oil) based on a volume and pump rate.
• Duplex Pump Output: Barrels per stroke from a duplex pump.
• Triplex Pump Output: Barrels per stroke from a triplex pump.
• Quintuplex Pump Output: Barrels per stroke from a quintuplex pump.
• Barrel Production: Computes the total volume (barrels) produced over a period of time based on the production rate and duration.
• Annular Velocity: Compute the fluid flow velocity, based on the flow rate and pipe dimensions.
• Mud Buoyancy: Computes the buoyancy in mud
• Volume of a Pipe: Computes the volume of a pipe.
• Weight of Pipe Contents: Computes the weight (mass) based on density and pipe dimensions.
• Density of Oil:
  • Crude at (48° API): 790.0 kg/m³
  • Crude at (40° API): 825.0 kg/m³
  • Crude at (35.6° API): 847.0 kg/m³
  • Crude at (32.6° API): 862.0 kg/m³
• Energy in Crude Oil: 5800000.0 BTU/bbl
• Pump Efficiency