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| Title | Date | Subject | Description | ||
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Heavy oil production operations in Potiguar Basin, Brazil | 1987 | heavy oil production operations; heavy oil; Portiguar Basin; oil fields; oil | The Potiguar basin is located on the northeastern Brazilian coast and comprises an onshore portion with 21,500 km2 (8300 mi2) and its offshore extension (Fig. 1). In the last 4 years, many oil fields have been discovered in the onshore portion, where today's production reaches 20,000 bbl/d. The oil ... |
| 2 |
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Hypotheses of oil-shale genesis, Green River Formation, northeast Utah, northwest Colorado, and southwest Wyoming | 1985 | oil shale; Green River Formation; tar sandstone | In the six decades or so of oil-shale studies on the Green River Formation (Paleocene/Eocene) in northeast Utah, northwest Colorado, and southwest Wyoming, two alternative hypotheses for the paleoenvironment have dominated the literature: (1) a stratified lake in which anaerobic conditions in the hy... |
| 3 |
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Oil-impregnated sandstone deposits Circle Cliffs Uplift, Utah | 1981-04 | oil-impregnated sandstone; Utah deposits; Circle Cliffs Uplift; Triassic Moenkopi Formation; oil-impregnated sandstone resource | One of the major oil-impregnated sandstone deposits in the United States is present on the Circle Cliffs uplift in an unnamed sandstone unit in the middle portion of the Triassic Moenkopi Formation. The deposit occurs on the west and east flanks of the uplift and is separated by an irregular barren ... |
| 4 |
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The Whiterocks tar sand deposit | 1985 | Whiterocks tar sand deposit; tar sand; bitumen; tar-bearing Navajo Sandstone | The Whiterocks tar sand deposit is located near the mouth of Whiterocks Canyon, an important south drainage of the Uinta Mountains. This deposit is probably the least known and most unique of the major bitumen accumulations in the Uinta Basin. Historically, it is near the purported oldest white sett... |
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