## Flow rates in oil pipes

### Flow rates in oil pipes

Looking to calculate the maximum flow rate for WTI Crude in both 12" and 20" steel pipes - same fluid properties and pressure. Only difference woudl be the pipe diameter. How much more oil in volume terms would pass through the larger pipe compared to the smaller pipe? Any help much appreciated?

### Re: Flow rates in oil pipes

For laminar flow (Re<2300) flow rate will change with 4 power of diameter Q/Q1 = (D/D1)^4

For turbulent flow where friction factor is not depending on the Reynolds number flow rate will change with 2.5 power of diameter Q/Q1 = (D/D1)^2.5

Anyway, you can try with calculator at:

http://www.pipeflowcalculations.com/pre ... /index.htm

For turbulent flow where friction factor is not depending on the Reynolds number flow rate will change with 2.5 power of diameter Q/Q1 = (D/D1)^2.5

Anyway, you can try with calculator at:

http://www.pipeflowcalculations.com/pre ... /index.htm

Pipe flow calculations - since 2000

### Re: Flow rates in oil pipes

What is the flow rate in gallons per day for an oil pipeline with a 20 inch diameter?

Shifton

Shifton

### Re: Flow rates in oil pipes

It is difficult to say without knowing other properties like velocity or pressure difference, but with estimated velocity of 1 m/s it is about 200.000 gph or 4,8 mil gallons per day.

Pipe flow calculations - since 2000

### Re: Flow rates in oil pipes

admin wrote:For laminar flow (Re<2300) flow rate will change with 4 power of diameter Q/Q1 = (D/D1)^4

For turbulent flow where friction factor is not depending on the Reynolds number flow rate will change with 2.5 power of diameter Q/Q1 = (D/D1)^2.5

Anyway, you can try with calculator at:

http://www.pipeflowcalculations.com/pre ... /index.htm