| LC control no. | sh 98005609 |
|---|---|
| Topical heading | Heavy oil |
| See also | Petroleum |
| Found in | Reid, T.B. The domestic heavy oil resource of December 6, 1995, 1996: p. 14 ("Crude oil having a viscosity of 100 to 10,000 centipoise inclusive at original reservoir conditions or a density of 20 degrees API gravity to 10 degrees API gravity inclusive at 60 degrees F at atmospheric pressure.") McGraw-Hill dict. of scientific and technical terms, 1989: p. 868 ("The high-boiling, relatively viscous fractions of petroleum or coal tar oils") NATO Advanced Study Institute on Heavy Crude Oil Recovery (1982 : Ankara, Turkey). Heavy crude oil recovery, 1984. |
| Not found in | The illustrated petroleum reference dict., 1985 |
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