I'm still newbie in 3 phase separator design. There were few questions arise in my head. Hope you guys can help me.
I realized in designing the 3 phase separator with weir, there are two possible design,
1. The normal liquid level (NLL) of oil is below the weir level at the oil compartment (see pic I)
2. The normal liquid level (NLL) of oil is above the weir level (see pic II)
In "Successfully Specify Three-Phase Separators" by Monnery & Svrcek, the oil NLL should be below the weir level, but in reality I have found one case whom oil NLL is above the weir level(pic II). IMHO, this configuration is due to the small flow rate of gas. Now that I face the task to design a new separator with small gas flow rate, I'm kind confuse whether to use the model and configuration on the paper (by Monnery & Svrcek) or not.
the new 'smaller' design spec are as follow:
gas flow rate: 6 MMSCFD
oil flow rate: 6,000 bopd
water flow rate: 6,000 bwpd
any answer is appreciated
Edited by kanankiri, 29 November 2010 - 12:16 AM.