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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0766350 (1991-09-27) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 398 인용 특허 : 0 |
A method and apparatus for the improved recovery of oil from porous sub-surface deposits such as tar sands comprising mining and drilling a well with upper and lower horizontal rectangular grids extending outward into the deposit and applying steam heat or super heated crude oil vapor through the lo
A method and apparatus for the improved recovery of oil from porous sub-surface deposits such as tar sands comprising mining and drilling a well with upper and lower horizontal rectangular grids extending outward into the deposit and applying steam heat or super heated crude oil vapor through the lower grid and hot pressurized flue gas through the upper grid. The flue gas and steam or super heated crude oil vapor are produced in a generation facility that provides electricity for the installation from turbine generators, the crude oil for super heating being provided by an initial production from the deposit following flue gas injection. Steam condensate is recycled from the recovered oil to the generation facility thereby reducing the water requirements and environmental pollution, and, where super heated crude oil vapor is used, a portion of the produced crude is used for this purpose.
A method for recovery of oil from porous sub-surface formations comprising: a) mining a vertical shaft through said formation, b) mining and drilling an upper, horizontal rectangular grid of drift and bore holes outward from said shaft, c) mining and drilling a lower horizontal, rectangular grid of
A method for recovery of oil from porous sub-surface formations comprising: a) mining a vertical shaft through said formation, b) mining and drilling an upper, horizontal rectangular grid of drift and bore holes outward from said shaft, c) mining and drilling a lower horizontal, rectangular grid of drift and bore holes outward from said shaft, d) applying supper heated, pressurized oil vapor through alternate bore holes of said lower grid to heat said formation, e) simultaneously applying hot, pressurized flue gas through said upper grid to heat said formation and force oil downward, f) condensing said super heated oil vapor in said formation and recovering heated flowable crude oil mixed with said condensed oil vapor through said lower grid, and g) recycling a portion of said recovered crude oil as said super heated, pressurized oil vapor. wherein said upper and lower grids are oriented in a parallel relationship relative to the dip and strike of said sub-surface formation with said drifts aligned with the dip and said bore holes extending perpendicularly to said drifts and aligned with the strike.
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