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Three Phase Test Separator

            The three phase test separator is a mechanical device to separate and measure oil, gas and water rates. Our portable test separators accurately gauge well fluid production levels, providing our customers with valuable well information as it regards a well’s present performance and potential.
The components of the test separator are as follows:

  1. The vessel, comprising of pressure and level regulators, internal components (coalescing plates, weir plates, oil/gas compartments, etc) and safety devices.
  2. The piping necessary for the different phases and metering (equipped with corresponding metering devices).
  3. The skid and its protective frame. Built-in shrinkage tester, sampling points and barton recorder are also parts of the test separator.

The major internal components aid separation. The coalescing plates prevent droplets larger than 15 mm from being carried into the outlet gas line. The mist extractor extracts fine liquid droplets still in the gas stream. The extracted droplets coalesce into the oil phase.

            Vessel Capacity
The vessel capacity for each phase depends on the conditions of pressure and temperature and the following factors:

  1. Size of vessel.
  2. Vessel internals such as coalescing plates and mist ex                       tractors.
  3. Liquid density and viscosity
  4. Vessel operating liquid level
  5. Required liquid-gas separator efficiency in terms of size of liquid droplets to be separated from gas phase.

 

TYPICAL SEPARATOR CAPACITIES

 

Size

Working
Pressure
(psig)

Liquid
Capacity
(bbls/day)

 

Gas Capacity MMscfd Liquid at 1/3 of the Vessel

 

400 psig

600 psig

800 psig

10,000 psig

1,200 psig

1,400 psig

2000 psig

42” x 10’

1440

10,000

28

35

40

45

50

59

0

42” x 15’

1440

12,000

41

48

53

57

63

72

0

48” x 10’

1440

13,000

42

49

55

65

70

83

0

48” x 15’

1440

19,000

50

58

67

75

82

93

0

48” x 15’

2000

19,000

50

58

67

75

82

93

110

 

42” x 10’ THREE PHASE TEST SEPARATOR

Technical Specification:

Working Pressure:                            1,440-psi
Working Temperature:                      150 DegF           

Capacities:

Gas:                                                                        59 MMscf per day operating pressure with fluid at one-third full.

Liquid:                                                                   10,000 Barrels with two minutes retention time.

Metering Equipment:
Gas:                                                                        4-inch Senior ANSI 600 Orifice fitting (Daniels)
                                                                               One (1500-psi) Static barton recorder
                                                                               100 or 200 Inches of water differential pressure.

Oil:                                                                         One 3-inch turbine meter flow analyzer
                                                                               One 2-inch turbine meter flow analyzer

Water:                                                                    One 2-inch turbine meter flow analyzer

Safety Equipment:
Over Pressure Safety Devices:                           2 x 3-inch, 1440-psi Relief valves
                                                                            2 x 3-inch, 1510-psi Rupture disc

Valve Controls:
Gas back pressure:                                               1 x 3-inch
Oil level control                                                   2 x 3-inch
Water level control                                               1 x 2-inch

Service:                                                                  Standard
Standard:                                                               NACE MR0175
Code:                                                                      ASME Section 8, Div 1

Connections:
Inlet (female)                                                        4-inch x 602
Gas Outlet (male)                                                3-inch x 602
Oil line Outlet (male)                                         3-inch x 602
Water line Outlet (male)                                    3-inch x 602

 

 
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