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| Title | Date | Subject | Description | ||
|---|---|---|---|---|---|
| 1 |
 | Method of separating bitumen from tar sand with cold solvent | 1976-11-23 | Bitumen; Tar sand; Separation; Solvent extraction; Cold solvent | A method for separating bitumen from tar sand by solvent extraction with efficient separation of water from the recovered bitumen is disclosed. Tar sand may often be recovered by surface mining techniques. The tar sand is comprised of bitumen, water and sand including clays. The tar sand is contacte... |
| 2 |
 | Production of bitumen from a tar sand formation | 1976-05-25 | bitumen production; subterranean tar sand; patent | A method of producing bitumen from a subterranean tar sand formation while heating the formation via electrical conduction between a plurality of wells completed therein characterized by a plurality of steps. First, a high back pressure is maintained on the wells. Next, an immiscible fluid is inject... |
| 3 |
 | Method of extracting liquid and gaseous fuel from oil shale and tar sand | 1981-05-12 | liquid extraction; gaseous fuel; oil shale; tar sand; patent | Kerogen and other combustible matter can be extracted from an area of oil shale or tarsand by drilling boreholes in a selected pattern through the overlying soil and rock without removing it. Each borehole mouth is tightly closed by a cover provided with an air inlet pipe and a gas exhaust pipe. In ... |
| 4 |
 | In situ thermal processing of a coal formation using a controlled heating rate | 2004-06-15 | coal formation; in situ thermal process; in situ; thermal process; heating rate | A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. A heating rate to a... |
| 5 |
 | In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range | 2004-06-15 | coal formation; coal; in situ; thermal processing; carbon | A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. An average temperat... |
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