Lapa assay from Total Oil Trading SA’s website.
In late 2018, Total Oil Trading SA, the oil and gas trading arm of Total SA, Paris, published an assay dated Oct. 8, 2018, for Lapa crude oil, produced from Lapa field in Block BM-S-9A in the Santos basin presalt, 270 km offshore Sao Paulo, Brazil, in 2,140 m of water.
Stationed at Total SA-operated Lapa field in the Santos basin presalt, the 337.4-m long, 28.8-m high Cidade de Caraguatatuba FPSO can produce 100,000 b/d of oil, store 1.6 million bbl of oil, and compress 5 million cu m/day of gas. Photo from Modec Inc.
Lapa field began production in December 2016 via the 100,000-b/d Cidade de Caraguatatuba floating production, storage, and offloading (FPSO) vessel. Alongside its crude production, the 337.4-m long, 28.8-m high FPSO can store 1.6 million bbl of oil and compress 5 million cu m/day of gas.
In January 2018, Petróleo Brasileiro SA transferred most of its ownership interest in, as well as operatorship of, Lapa field to Total. Alongside Total (35%), Lapa field partners include Royal Dutch Shell PLC unit BG E&P Brasil Ltda. (30%), Repsol Sinopec Brasil SA (25%), and Petrobras (10%).
Whole crude
Density at 15° C., kg/cu m.: 916.9
Gravity, °API: 22.7
Acidity, mg KOH/g: 0.44
Sulfur, wt %: 0.57
Mercaptan sulfur, mg/kg: 36
Viscosity at 10° C., cst: 5,560.0
Viscosity at 50° C., cst: 52.9
Pour point, °C.: 12
Total nitrogen, wt %: 0.56
Reid vapor pressure at 37.8° C., kPa: 13
Sodium chloride, mg/kg: 86.7
Nickel, mg/kg: 24.9
Vanadium, mg/kg: 20.0
Chlorides, mg/kg: 39.5
Propane, wt %: 0.1
iso-Butane, wt %: 0.1
n-Butane, wt %: 0.2
Light naphtha, 15-65° C.
Yield on crude, wt %: 1.2
Yield on crude, vol %: 1.6
Density at 15° C., kg/cu m.: 648
Sulfur, wt %: 0.02
Mercaptan sulfur, mg/kg: 2
Research octane no., clear: 72.8
Motor octane no., clear: 71.1
Naphthenes, vol %: 8.4
Aromatics, vol %: 0.4
Light naphtha, 15-80° C.
Yield on crude, wt %: 1.7
Yield on crude, vol %: 2.3
Density at 15° C., kg/cu m.: 662
Sulfur, wt %: 0.02
Mercaptan sulfur, mg/kg: 4
Research octane no., clear: 70.1
Motor octane no., clear: 68.2
Naphthenes, vol %: 15.8
Aromatics, vol %: 1.2
Heavy naphtha, 80-150° C.
Yield on crude, wt %: 5.2
Yield on crude, vol %: 6.3
Density at 15° C., kg/cu m.: 745
Sulfur, wt %: 0.03
Mercaptan sulfur, mg/kg: 17
Naphthenes, vol %: 43.2
Aromatics, vol %: 5.8
Heavy naphtha, 80-175° C.
Yield on crude, wt %: 7.2
Yield on crude, vol %: 8.8
Density at 15° C., kg/cu m.: 755
Sulfur, wt %: 0.04
Mercaptan sulfur, mg/kg: 18
Naphthenes, vol %: 42.7
Aromatics, vol %: 7.1
Heavy naphtha, 100-150° C.
Yield on crude, wt %: 4.1
Yield on crude, vol %: 5.0
Density at 15° C., kg/cu m.: 752
Sulfur, wt %: 0.04
Mercaptan sulfur, mg/kg: 18
Naphthenes, vol %: 43.6
Aromatics, vol %: 6.2
Kerosine, 150-230° C.
Yield on crude, wt %: 6.9
Yield on crude, vol %: 7.9
Density at 15° C., kg/cu m.: 800
Sulfur, wt %: 0.08
Smoke point, mm: 22
Acidity, mg KOH/g: 0.18
Cetane index 1990 (D-4737): 42.1
Freeze point, °C.: -56
Aromatics, vol %: 12.8
Viscosity at 50° C., cst: 1.0
Flash point, °C.: 56.9
Kerosine, 175-230° C.
Yield on crude, wt %: 4.8
Yield on crude, vol %: 5.4
Density at 15° C., kg/cu m.: 809
Sulfur, wt %: 0.09
Mercaptan sulfur, mg/kg: 19
Smoke point, mm: 23
Acidity, mg KOH/g: 0.22
Cetane index 1990 (D-4737): 43.2
Freeze point, °C.: -49
Aromatics, vol %: 13.8
Viscosity at 50° C., cst: 1.1
Flash point, °C.: 71.7
Kerosine, 150-250° C.
Yield on crude, wt %: 10.0
Yield on crude, vol %: 11.3
Density at 15° C., kg/cu m.: 809
Sulfur, wt %: 0.09
Mercaptan sulfur, mg/kg: 19
Smoke point, mm: 22
Acidity, mg KOH/g: 0.23
Cetane index 1990 (D-4737): 44.8
Freeze point, °C.: -48
Aromatics, vol %: 14.4
Viscosity at 50° C., cst: 1.1
Flash point, °C.: 62.0
Gas oil, 175-400° C.
Yield on crude, wt %: 29.7
Yield on crude, vol %: 31.6
Density at 15° C., kg/cu m.: 859
Sulfur, wt %: 0.26
Aniline point, °C.: 67
Cetane index 1990 (D-4737): 48.6
Cloud point, °C.: 2
Cold filter plugging point, °C.: -1
Pour point, °C.: -5
Viscosity at 50° C., cst: 3.2
Viscosity at 100° C., cst: 1.5
UOP K factor: 11.7
Flash point, °C.: 90.5
Gas oil, 230-400° C.
Yield on crude, wt %: 24.9
Yield on crude, vol %: 26.2
Density at 15° C., kg/cu m.: 869
Sulfur, wt %: 0.30
Aniline point, °C.: 69
Cetane index 1990 (D-4737): 50.1
Cloud point, °C.: 3
Cold filter plugging point, °C.: 3
Pour point, °C.: 2
Viscosity at 50° C., cst: 4.2
Viscosity at 100° C., cst: 1.8
UOP K factor: 11.7
Flash point, °C.: 106.3
Gas oil, 230-375° C.
Yield on crude, wt %: 21.6
Yield on crude, vol %: 22.9
Density at 15° C., kg/cu m.: 864
Sulfur, wt %: 0.28
Aniline point, °C.: 68
Cetane index 1990 (D-4737): 50.3
Cloud point, °C.: -1
Cold filter plugging point, °C.: -2
Pour point, °C.: -2
Viscosity at 50° C., cst: 3.6
Viscosity at 100° C., cst: 1.6
UOP K factor: 11.7
Flash point, °C.: 104.6
Vacuum distillate, 375-550° C.
Yield on crude, wt %: 21.7
Yield on crude, vol %: 21.2
Density at 15° C., kg/cu m.: 935
Sulfur, wt %: 0.54
Conradson carbon residue, wt %: 0.3
Aniline point, °C.: 82
Total nitrogen, wt %: 0.33
Basic nitrogen, mg/kg: 952
Pour point, °C.: 38
Viscosity at 100° C., cst: 14.3
Viscosity at 150° C., cst: 5.9
UOP K factor: 11.8
Asphaltenes (C7), wt %: 0.1
Vacuum distillate, 375-565° C.
Yield on crude, wt %: 24.0
Yield on crude, vol %: 23.4
Density at 15° C., kg/cu m.: 937
Sulfur, wt %: 0.56
Conradson carbon residue, wt %: 0.4
Aniline point, °C.: 83
Total nitrogen, wt %: 0.35
Basic nitrogen, mg/kg: 1,020
Pour point, °C.: 39
Viscosity at 100° C., cst: 15.8
Viscosity at 150° C., cst: 6.5
UOP K factor: 11.8
Asphaltenes (C7), wt %: 0.1
Vacuum distillate, 375-580° C.
Yield on crude, wt %: 26.3
Yield on crude, vol %: 25.6
Density at 15° C., kg/cu m.: 940
Sulfur, wt %: 0.57
Conradson carbon residue, wt %: 0.6
Aniline point, °C.: 83
Nickel, mg/kg: 1.0
Vanadium, mg/kg: 1.0
Total nitrogen, wt %: 0.37
Basic nitrogen, mg/kg: 1,100
Pour point, °C.: 40
Viscosity at 100° C., cst: 17.4
Viscosity at 150° C., cst: 7.2
UOP K factor: 11.8
Asphaltenes (C7), wt %: 0.2
Vacuum distillate, 400-580° C.
Yield on crude, wt %: 23.0
Yield on crude, vol %: 22.3
Density at 15° C., kg/cu m.: 944
Sulfur, wt %: 0.60
Conradson carbon residue, wt %: 0.7
Aniline point, °C.: 84
Nickel, mg/kg: 1.0
Vanadium, mg/kg: 1.0
Total nitrogen, wt %: 0.40
Basic nitrogen, mg/kg: 1,200
Pour point, °C.: 42
Viscosity at 100° C., cst: 21.7
Viscosity at 150° C., cst: 8.7
UOP K factor: 11.8
Asphaltenes (C7), wt %: 0.2
Residue, > 375° C.
Yield on crude, wt %: 64.3
Yield on crude, vol %: 60.0
Density at 15° C., kg/cu m.: 981
Sulfur, wt %: 0.78
Conradson carbon residue, wt %: 11.0
Acidity, mg KOH/g: 0.1
Nickel, mg/kg: 39.0
Vanadium, mg/kg: 31.0
Total nitrogen, wt %: 0.86
Pour point, °C.: 42
Viscosity at 100° C., cst: 163
Viscosity at 150° C., cst: 56
Asphaltenes (C7), wt %: 3.7
Residue, > 550° C.
Yield on crude, wt %: 42.6
Yield on crude, vol %: 38.7
Density at 15° C., kg/cu m.: 1,007
Sulfur, wt %: 0.90
Conradson carbon residue, wt %: 16.4
Nickel, mg/kg: 58.0
Vanadium, mg/kg: 47.0
Total nitrogen, wt %: 1.13
Pour point, °C.: 57
Viscosity at 100° C., cst: 1,120
Viscosity at 150° C., cst: 363
Asphaltenes (C7), wt %: 5.6
Residue, > 565° C.
Yield on crude, wt %: 40.3
Yield on crude, vol %: 36.6
Density at 15° C., kg/cu m.: 1,010
Sulfur, wt %: 0.91
Conradson carbon residue, wt %: 17.3
Nickel, mg/kg: 61.0
Vanadium, mg/kg: 49.0
Total nitrogen, wt %: 1.16
Pour point, °C.: 58
Viscosity at 100° C., cst: 1,420
Viscosity at 150° C., cst: 455
Penetration, mm/10: 88
Asphaltenes (C7), wt %: 5.8
Residue, > 580° C.
Yield on crude, wt %: 38.0
Yield on crude, vol %: 34.4
Density at 15° C., kg/cu m.: 1,013
Sulfur, wt %: 0.92
Conradson carbon residue, wt %: 18.2
Nickel, mg/kg: 65.0
Vanadium, mg/kg: 52.0
Total nitrogen, wt %: 1.20
Pour point, °C.: 59
Viscosity at 100° C., cst: 1,840
Viscosity at 150° C., cst: 579
Penetration, mm/10: 77
Asphaltenes (C7), wt %: 6.2
