Page 87 - Petroleum and Gas Field Processing

Figure 14 Main equipment for test separator.

An orifice meter at the separator’s gas outlet measures the produced gas.
Physical properties of the oil and GOR are also determined. Equipment
for test units is shown in Figure 14.

Low-Temperature Separators

Low-temperature separators (LTSs) are used to effectively remove light
condensable hydrocarbons from a high-pressure gas stream (gas
condensate feed). Liquid (condensate) separation is made possible by
cooling the gas stream before separation. Temperature reduction is
obtained by what is known as the Joule–Thomson effect of expanding the
well fluid as it flows through the pressure-reducing choke or valve into
the separator. Condensation of the vapors takes place accordingly, where
the temperature is in the range 0–10 F.

Modern GOSPs
Safe and environmentally acceptable handling of crude oils is assured by
treating the produced crude in the GOSP and related crude-processing
facilities. The number one function of the GOSP is to separate the
associated gas from oil. As the water content of the produced crude

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