Title | Date | Subject | Description | ||
---|---|---|---|---|---|
1 | Development of Utah tar sands--a status report | 1977 | The hydrocarbon resource locked in Utah's tar sands has been estimated to be in excess of 25 billion barrels. Tar sands, known variously as oil sands, bituminous sandstone, or oil-impregnated sandstone, cannot be recovered by conventional primary or secondary petroleum recovery techniques because of... |