StatoilHydro recently conducted an assay of the Snohvit condensate, which is associated with the Snohvit gas field in the Norwegian Barents Sea (Fig. 1) that started production in August 2007.
The gas processing plant at the Hammerfest LNG plant in northern Norway received gas from Snohvit field on Aug. 21, 2007 (OGJ, Aug. 27, 2007, p. 10). Production, however, was delayed due to unexpected repairs to leaks in the cooling system (OGJ, Feb. 4, 2008, p. 10).
StatoilHydro estimates that there is 113 million bbl of recoverable condensate. StatoilHydro will market a total of 4 billion cu m/year of gas at the field’s full capacity (OGJ, Mar. 3, 2008, p. 11).
Interests in the project are operator Statoil with 33.53%, Petoro SA 30%, Total E&P Norge 18.4%, Gaz de France 12%, Amerada Hess Norge 3.26%, and RWE Dea Norge 2.81%.
Fig. 2 shows a simulated distillation by gas chromatograph curve for the whole crude. These data are from StatoilHydro.
Whole crude
Density at 15° C., kg/l: 0.7384
Specific gravity at 60/60° F.: 0.7386
Gravity at 60/60° F., °API: 60.1
Sulfur, wt %: 0.019
Total acid number, mg KOH/g: <0.01
rvp, kPa: 50.9
Pour point, °C.: <-48
Kinematic viscosity at 20° C., cst: 0.75
Kinematic viscosity at 40° C., cst: 0.61
Nitrogen, mg/kg: 4
Vanadium, mg/kg: <0.1
Nickel, mg/kg: <0.1
Sodium, mg/kg: 0.2
Mercury, µg/kg: 1
Salt as NaCl, mg/l: <5
Wax content, wt %: <5.0
Flash point, °C.: <10
Water content, wt %: <0.01
n-Paraffins, wt %: 21.0
Butane, wt %: 1.48
Pentane, wt %: 7.09
Hexane, wt %: 4.46
Heptane, wt %: 3.37
Octane, wt %: 2.69
Nonane, wt %: 1.92
i-Butane, wt %: 0.09
i-Pentane, wt %: 6.04
Cyclopentane, wt %: 0.60
C6 isoparaffins, wt %: 5.41
C6 naphthenes, wt %: 5.09
Benzene, wt %: 2.10
C7 isoparaffins, wt %: 3.35
C7 naphthenes, wt %: 6.71
Toluene, wt %: 3.20
C8 isoparaffins, wt %: 3.94
C8 naphthenes, wt %: 3.31
C8 aromatics, wt %: 3.11
C9 isoparaffins, wt %: 1.55
C9 naphthenes, wt %: 1.16
C10+ components, wt %: 32.94
C5-65° C. fraction
Yield on crude, wt %: 20.02
Yield on crude, vol %: 22.84
Density at 15° C., kg/l: 0.6446
Specific gravity at 60/60° F.: 0.645
Gravity at 60/60° F., °API: 88.01
Mercaptan sulfur, mg/kg: 4
n-Paraffins, wt %: 44.71
i-Paraffins, wt %: 48.39
Naphthenes, wt %: 5.07
Aromatics including benzene, wt %: 1.84
n-Paraffins, vol %: 45.24
i-Paraffins, vol %: 49.16
Naphthenes, vol %: 4.27
Aromatics including benzene, vol %: 1.33
Vapor pressure, kPa: 105.1
RON: 74.6
MON: 73.6
65-90° C. fraction
Yield on crude, wt %: 14.74
Yield on crude, vol %: 15.06
Density at 15° C., kg/l: 0.7199
Specific gravity at 60/60° F.: 0.72
Gravity at 60/60° F., °API: 65.01
Sulfur, wt %: <0.001
Mercaptan sulfur, mg/kg: 4
n-Paraffins, wt %: 26.56
i-Paraffins, wt %: 27.71
Naphthenes, wt %: 34.37
Aromatics including benzene, wt %: 11.36
Benzene, wt %: 10.16
n-Paraffins, vol %: 28.75
i-Paraffins, vol %: 29.71
Naphthenes, vol %: 32.27
Aromatics including benzene, vol %: 9.28
Benzene, vol %: 8.28
Vapor pressure, kPa: 34.2
RON: 67
MON: 65.7
Nitrogen, mg/kg: <1
90-150° C. fraction
Yield on crude, wt %: 31.62
Yield on crude, vol %: 30.77
Density at 15° C., kg/l: 0.756
Specific gravity at 60/60° F.: 0.76
Gravity at 60/60° F., °API: 55.62
Sulfur, wt %: <0.001
Mercaptan sulfur, mg/kg: <3
n-Paraffins, wt %: 19.59
i-Paraffins, wt %: 23.77
Naphthenes, wt %: 37.46
Aromatics including benzene, wt %: 19.19
Benzene, wt %: 0.59
n-Paraffins, vol %: 21.3
i-Paraffins, vol %: 25.32
Naphthenes, vol %: 36.69
Aromatics including benzene, vol %: 16.69
Benzene, vol %: 0.5
Flash point, °C.: <10
Nitrogen, mg/kg: <1
150-180° C. fraction
Yield on crude, wt %: 9.6
Yield on crude, vol %: 9.1
Density at 15° C., kg/l: 0.7794
Specific gravity at 60/60° F.: 0.78
Gravity at 60/60° F., °API: 49.99
Sulfur , wt %: 0.0038
Mercaptan sulfur, mg/kg: 4
Total acid number, mg KOH/g: <0.01
n-Paraffins, wt %: 21.84
i-Paraffins, wt %: 28.66
Naphthenes, wt %: 27.96
Aromatics, wt %: 21.545
n-Paraffins, vol %: 23.56
i-Paraffins, vol %: 29.96
Naphthenes, vol %: 27.17
Aromatics, vol %: 19.31
Total aromatics, wt %: 20.4
Monoaromatics, wt %: 20.4
Diaromatics, wt %: <0.1
Polycyclic aromatics, wt %: <0.1
Naphthalenes, vol %: 0.02
Aniline point, °C.: 51.9
Smoke point, mm: 25
Flash point, °C.: 40
Freezing point, °C.: <-60
Cetane index, ASTM D-976: 32.18
Calculated cetane index, ASTM D-4737: 37.18
Kinematic viscosity at 20°C, cst: 1.076
Kinematic viscosity at 50°C, cst: 0.759
Nitrogen, mg/kg: <1
180-240° C. fraction
Yield on crude, wt %: 11.67
Yield on crude, vol %: 10.76
Density at 15° C., kg/l: 0.8009
Specific gravity at 60/60° F.: 0.801
Gravity at 60/60° F., °API: 45.11
Sulfur, wt %: 0.014
Mercaptan sulfur, mg/kg: 4
Total acid number, mg KOH/g: <0.01
Total aromatics, wt %: 18.2
Monoaromatics, wt %: 15.7
Diaromatics, wt %: 2.5
Polycyclic aromatics, wt %: <0.1
Naphthalenes, vol %: 1.67
Aniline point, °C.: 62
Smoke point, mm: 23.5
Freezing point, °C.: -50.5
Cloud point, °C.: <-50
Cold filter plugging point, °C.: <-51
Pour point, °C.: <-49
Cetane number: 49.6
Cetane index, ASTM D-976: 44.75
Calculated cetane index, ASTM D-4737: 46.41
Kinematic viscosity at 20° C., cst: 1.795
Kinematic viscosity at 50° C., cst: 1.15
Nitrogen, mg/kg: <1
240-320° C. fraction
Yield on crude, wt %: 7.95
Yield on crude, vol %: 7.05
Density at 15° C., kg/l: 0.8325
Specific gravity at 60/60° F.: 0.83
Gravity at 60/60° F., °API: 38.4
Sulfur, wt %: 0.115
Total acid number, mg KOH/g: <0.01
Total aromatics, wt %: 21.1
Monoaromatics, wt %: 12.7
Diaromatics, wt %: 8.2
Polycyclic aromatics, wt %: 0.2
Aniline point, °C.: 73.1
Cloud point, °C.: -21
Cold filter plugging point, °C.: -22
Pour point, °C.: -21
Cetane number: 56.2
Cetane index, ASTM D-976: 52.72
Calculated cetane index, ASTM D-4737: 56.83
Kinematic viscosity at 20° C., cst: 4.432
Kinematic viscosity at 50° C., cst: 2.328
Nitrogen, mg/kg: 5.8
Basic nitrogen, wt %: <0.001
320+° C. fraction
Yield on crude, wt %: 2.60
Yield on crude, vol %: 2.22
Density at 15° C., kg/l: 0.8646
Specific gravity at 60/60° F.: 0.865
Gravity at 60/60° F., °API: 32.08
Sulfur, wt %: 0.304
Total acid number, mg KOH/g: 0.03
Total aromatics, wt %: 21.7
Monoaromatics, wt %: 13.4
Diaromatics, wt %: 6.3
Polycyclic aromatics, wt %: 2
Aniline point, °C.: 89.1
Watson K-factor: 12.1
Cloud point, °C.: 21
Cold filter plugging point, °C.: 20
Pour point, °C.: 21
Cetane index, ASTM D-976: 53.59
Calculated cetane index, ASTM D-4737: 68.38
Conradson carbon residue, wt %: <0.1
Kinematic viscosity at 50° C., cst: 8.177
Kinematic viscosity at 100° C., cst: 2.792
Nitrogen, mg/kg: 175
Basic nitrogen, wt %: 0.006
Refractive index at 67° C.: 1.461
Vanadium, mg/kg: <0.1
Nickel, mg/kg: 2.4
Asphaltenes, wt %: <0.5
n-Pentane insolubles, wt %: <0.1