Gas volume to Liquid Volume
Gas volume to Liquid Volume
(OP)
Is there any conversion factor for converting Gas volume in SCF to equivalent liquid volume for volumetic accounting purpose.
I come up with 1MMSCF = 170 Barrel of liquid based on eqivalent enery of gas and liquid form. Is this factor correct for carrying out volumetic balance for a process.
I come up with 1MMSCF = 170 Barrel of liquid based on eqivalent enery of gas and liquid form. Is this factor correct for carrying out volumetic balance for a process.





RE: Gas volume to Liquid Volume
Typically, a 1 gallon of a hydrocarbon will expand to 17 to 37 cubic feet, depending on the components. With ethane being on the 37 and diesel on the 17 cubic feet range. methane has 59 cubic feet per gallon, so pure methane
1,000,000 / 59 /42 is 403 bbls.
BUT, your conversion appears to be on an energy basis. A barrel of crude can be assumed to have 5.8 MMBTU/bbl. Natural gas can be assumed to have 1000 BTU/cubic foot. 1,000,000 * 1000 / 5,800,000 is 172.4 bbls. Assuming that your gas is 1000 BTU per cubic foot and a barrel has 5,800,000 BTU.
so do you want energy equivalent or volume equivalent?
RE: Gas volume to Liquid Volume
David
RE: Gas volume to Liquid Volume
Actually I am looking for volumetric balance of a Gas Process Plant ( Incommimg fluid equal to outgoing fraction . The fuel gas used is in gas form. Hence the need to convert the same in liquid volume at std condition.
Instead of mass balance for the Process, volume balace approach ( converted to std volume) is being used by us
RE: Gas volume to Liquid Volume
Doing a plant material balance in Volume units is not a good idea. The only way to do it is to convert each stream to mass units (or energy units if you want to ignore inerts)and then add mass to mass.
David
RE: Gas volume to Liquid Volume
I teach such accounting practices at OSU extension. I always perform both a gas volumetric (MCF) and an Energy Balance on gas plants. This allows you to see if you have a metering problem or a sampling problem and you can find out immeadiately any measurement or loss issues.
the GPA 2145 has all the conversion factors for converting gas to liquids volumes and visa-versa. It also has the energy conversion for liquids to BTU's and gas to BTU's. GPA 2172 is a complete set of standards for applying the factors.
RE: Gas volume to Liquid Volume