Based on a sample taken July 27, 2018, Equinor ASA (formerly Statoil ASA) on Oct. 24, 2018, issued a commercial assay of heavy, medium-sulfur Hebron crude (OGJ Online, Nov. 29, 2017; Jan. 4, 2013).
Discovered in 1980 and estimated to contain more than 700 million bbl in reserves, Hebron lies in 300 ft of water offshore Newfoundland and Labrador in the Jeanne d’Arc basin, more than 200 miles southeast of the capital, St. John’s, and 19 miles southeast of operator ExxonMobil Corp.’s Hibernia project.
Roughly 200 miles offshore Newfoundland and Labrador in about 300 ft of water, Hebron field began producing heavy, medium-sulfur crude in November 2017 from a stand-alone, gravity-based platform equipped with 1.2 million bbl of crude storage. Photo from ExxonMobil Corp.
Production from the field began in November 2017 from the Hebron platform, a stand-alone, gravity-based structure that supports an integrated topsides deck. The platform is equipped with 1.2 million bbl of oil storage. Crude is shuttled from the platform to Newfoundland Transhipment Terminal at Whiffen Head on the eastern side of the head of Placentia Bay, the same terminal from which Hibernia and Terra Nova crudes also are loaded.
ExxonMobil Canada Properties operates Hebron with 35.5%. Chevron Canada Ltd. holds a 29.6% interest, Suncor Energy Inc. 21%, Equinor Canada Ltd. 9%, and Nalcor Energy-Oil & Gas Inc. 4.9%.
Whole crude
Density at 15° C., kg/l.: 0.931
API gravity at 60/60° F.: 20.4
UOP K factor: 11.7
Total sulfur, wt %: 0.790
Mercaptan sulfur, ppm: 1.0
Total nitrogen, ppm: 2,445
Basic nitrogen, ppm: 730
Total acid no., mg KOH/g: 1.20
Reid vapor pressure, psi: 2.6
Vis. at 20° C., cst: 368.00
Vis. at 40° C., cst: 94.80
Vis. at 50° C., cst: 55.60
Paraffins, wt %: 9.3
Naphthenes, wt %: 65.5
Aromatics, wt %: 25.2
Pour point, °C.: -3
Wax, wt %: 6.7
C7 asphaltenes, wt %: 1.3
Micro carbon residue, wt %: 4.8
Rams. carbon residue, wt %: 4.3
Vanadium, ppm (wt): 3.7
Nickel, ppm (wt): 5.4
iso-Butane, wt %: 0.01
n-Butane, wt %: 0.04
iso-Pentane, wt %: 0.06
n-Pentane, wt %: 0.04
Cyclopentane, wt %: 0.04
C6 paraffins, wt %: 0.09
C6 naphthenes, wt %: 0.11
C7 paraffins, wt %: 0.10
C7 naphthenes, wt %: 0.14
Toulene, wt %: 0.01
Atmospheric distillation
Pentanes to 65° C.
Yield on crude, wt %: 0.2
Yield on crude, vol %: 0.3
Cumulative yield, wt %: 0.2
Density at 15° C., kg/l.: 0.658
API gravity at 60/60° F.: 83.6
Total sulfur, wt %: 0.001
Mercaptan sulfur, ppm: 0.4
RON (clear): 85.1
MON (clear): 82.0
Paraffins, wt %: 80.3
Naphthenes, wt %: 19.7
Hydrogen, wt %: 16.2
65 - 100° C.
Yield on crude, wt %: 0.4
Yield on crude, vol %: 0.5
Cumulative yield, wt %: 0.6
Density at 15° C., kg/l.: 0.727
API gravity at 60/60° F.: 63.1
Total sulfur, wt %: 0.002
Mercaptan sulfur, ppm: 3.0
Total acid no., mg KOH/g: 0.01
RON (clear): 68.2
MON (clear): 64.5
Paraffins, wt %: 39.8
Naphthenes, wt %: 59.2
Aromatics, wt %: 1.0
Hydrogen, wt %: 15.0
100 - 150° C.
Yield on crude, wt %: 1.0
Yield on crude, vol %: 1.2
Cumulative yield, wt %: 1.6
Density at 15° C., kg/l.: 0.776
API gravity at 60/60° F.: 50.8
UOP K factor: 11.6
Total sulfur, ppm: 0.004
Mercaptan sulfur, ppm: 4.0
Total acid no., mg KOH/g: 0.03
RON (clear): 64.8
MON (clear): 63.2
Paraffins, wt %: 26.1
Naphthenes, wt %: 67.4
Aromatics, wt %: 6.5
Aniline point, °C.: 41.2
Hydrogen, wt %: 14.0
150 - 200° C.
Yield on crude, wt %: 2.3
Yield on crude, vol %: 2.6
Cumulative yield, wt %: 3.9
Density at 15° C., kg/l.: 0.824
API gravity at 60/60° F.: 40.1
UOP K factor: 11.3
Total sulfur, ppm: 0.011
Mercaptan sulfur, ppm: 2.2
Total acid no., mg KOH/g: 0.06
Vis. at 20° C., cst: 1.76
Vis. at 40° C., cst: 1.23
RON (clear): 46.3
MON (clear): 71.2
Paraffins, wt %: 12.5
Naphthenes, wt %: 71.7
Aromatics, wt %: 15.8
Freeze point, °C.: -84
Smoke point, mm: 21
Cetane index: 26
Naphthalenes, vol %: 0.1
Aniline point, °C.: 42.8
Hydrogen, wt %: 13.3
200 - 250° C.
Yield on crude, wt %: 5.1
Yield on crude, vol %: 5.6
Cumulative yield, wt %: 9.0
Density at 15° C., kg/l.: 0.858
API gravity at 60/60° F.: 33.3
UOP K factor: 11.3
Total sulfur, ppm: 0.043
Mercaptan sulfur, ppm: 1.7
Total nitrogen, ppm: 2
Basic nitrogen, ppm: 2.895
Total acid no., mg KOH/g: 0.13
Vis. at 40° C., cst: 2.14
Vis. at 50° C., cst: 1.79
Pour point, °C.: -72
Cloud point, °C.: -70
Freeze point, °C.: -66
Smoke point, mm: 17
Cetane index: 31
Naphthalenes, vol %: 0.9
Aniline point, °C.: 49.2
Hydrogen, wt %: 12.7
250 - 300° C.
Yield on crude, wt %: 9.0
Yield on crude, vol %: 9.6
Cumulative yield, wt %: 18.0
Density at 15° C., kg/l.: 0.879
API gravity at 60/60° F.: 29.4
UOP K factor: 11.3
Total sulfur, ppm: 0.151
Mercaptan sulfur, ppm: 1.5
Total nitrogen, ppm: 16
Basic nitrogen, ppm: 16.060
Total acid no., mg KOH/g: 0.30
Vis. at 40° C., cst: 4.04
Vis. at 50° C., cst: 3.24
Pour point, °C.: -47
Cloud point, °C.: -44
Freeze point, °C.: -41
Smoke point, mm: 12
Cetane index: 38
Naphthalenes, vol %: 3.6
Aniline point, °C.: 56.2
Hydrogen, wt %: 12.4
300 - 350° C.
Yield on crude, wt %: 10.4
Yield on crude, vol %: 10.9
Cumulative yield, wt %: 28.5
Density at 15° C., kg/l.: 0.894
API gravity at 60/60° F.: 26.6
UOP K factor: 11.5
Total sulfur, ppm: 0.357
Total nitrogen, ppm: 109
Basic nitrogen, ppm: 68.230
Total acid no., mg KOH/g: 0.65
Vis. at 40° C., cst: 8.54
Vis. at 50° C., cst: 6.40
Pour point, °C.: -14
Cloud point, °C.: -10
Cetane index: 45
Naphthalenes, vol %: 7.1
Aniline point, °C.: 63.7
Hydrogen, wt %: 12.4
350 - 370° C.
Yield on crude, wt %: 4.3
Yield on crude, vol %: 4.4
Cumulative yield, wt %: 32.8
Density at 15° C., kg/l.: 0.904
API gravity at 60/60° F.: 25.0
UOP K factor: 11.5
Total sulfur, ppm: 0.490
Total nitrogen, ppm: 272
Basic nitrogen, ppm: 135.600
Total acid no., mg KOH/g: 1.03
Vis. at 40° C., cst: 16.50
Vis. at 50° C., cst: 11.50
Pour point, °C.: 2
Cetane index: 51
Aniline point, °C.: 68.9
Hydrogen, wt %: 12.4
370° + C.
Yield on crude, wt %: 67.2
Yield on crude, vol %: 65.0
Cumulative yield, wt %: 100.0
Density at 15° C., kg/l.: 0.963
API gravity at 60/60° F.: 15.3
UOP K factor: 11.8
Total sulfur, ppm: 1.070
Total nitrogen, ppm: 3,599
Basic nitrogen, ppm: 1,064.000
Total acid no., mg KOH/g: 1.45
Vis. at 50° C., cst: 1,392.00
Vis. at 60° C., cst: 637.00
Vis. at 100° C., cst: 67.20
Pour point, °C.: 53
Wax, wt %: 8.2
C7 asphaltenes, wt %: 2.0
Micro carbon residue, wt %: 7.1
Rams. carbon residue, wt %: 6.4
Vanadium, ppm (wt): 5.5
Nickel, ppm (wt): 8.0
Vacuum distillation
370 - 450° C.
Yield on crude, wt %: 17.9
Yield on crude, vol %: 18.2
Density at 15° C., kg/l.: 0.918
API gravity at 60/60° F.: 22.6
UOP K factor: 11.7
Total sulfur, ppm: 0.590
Total nitrogen, ppm: 673
Basic nitrogen, ppm: 262.800
Total acid no., mg KOH/g: 1.54
Vis. at 50° C., cst: 32.70
Vis. at 60° C., cst: 21.70
Vis. at 100° C., cst: 6.40
Pour point, °C.: 20
Aniline point, °C.: 75.7
Hydrogen, wt %: 12.2
Wax, wt %: 11.3
450 - 500° C.
Yield on crude, wt %: 10.9
Yield on crude, vol %: 10.8
Density at 15° C., kg/l.: 0.937
API gravity at 60/60° F.: 19.5
UOP K factor: 11.8
Total sulfur, ppm: 0.750
Total nitrogen, ppm: 1,437
Basic nitrogen, ppm: 492.700
Total acid no., mg KOH/g: 1.96
Vis. at 50° C., cst: 130.00
Vis. at 60° C., cst: 75.10
Vis. at 100° C., cst: 15.20
Pour point, °C.: 36
Aniline point, °C.: 83.3
Hydrogen, wt %: 12.0
Wax, wt %: 11.3
Micro carbon residue, wt %: 0.2
Rams. carbon residue, wt %: 0.2
500 - 550° C.
Yield on crude, wt %: 9.7
Yield on crude, vol %: 9.5
Density at 15° C., kg/l.: 0.951
API gravity at 60/60° F.: 17.2
UOP K factor: 11.9
Total sulfur, ppm: 0.920
Total nitrogen, ppm: 2,257
Basic nitrogen, ppm: 738.100
Total acid no., mg KOH/g: 1.99
Vis. at 50° C., cst: 353.00
Vis. at 60° C., cst: 186.0
Vis. at 100° C., cst: 29.20
Pour point, °C.: 45
Aniline point, °C.: 87.9
Hydrogen, wt %: 11.8
Wax, wt %: 9.9
Micro carbon residue, wt %: 1.6
Rams. carbon residue, wt %: 1.6
550° + C.
Yield on crude, wt %: 28.7
Yield on crude, vol %: 26.5
Density at 15° C., kg/l.: 1.009
API gravity at 60/60° F.: 8.6
UOP K factor: 11.8
Total sulfur, ppm: 1.530
Total nitrogen, ppm: 6,697
Basic nitrogen, ppm: 1,889.500
Total acid no., mg KOH/g: 1.01
Vis. at 100° C., cst: 5,163.00
Vis. at 130° C., cst: 675.00
Pour point, °C.: 64
Wax, wt %: 4.5
C7 asphaltenes, wt %: 4.7
Micro carbon residue, wt %: 15.9
Rams. carbon residue, wt %: 14.4
Vanadium, ppm (wt): 12.8
Nickel, ppm (wt): 18.8
