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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0636777 (1991-01-02) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 297 인용 특허 : 0 |
An in situ thermal system is disclosed for enhanced oil recovery and the like from a subterranean formation. The system pressurizes the formation with water whereupon the entire formation is heated to relatively high temperatures in the absence of gas formation to significantly decrease the viscosit
An in situ thermal system is disclosed for enhanced oil recovery and the like from a subterranean formation. The system pressurizes the formation with water whereupon the entire formation is heated to relatively high temperatures in the absence of gas formation to significantly decrease the viscosity of substantially all the crude in the formation and permit recovery thereof. A down hole, fuel fired radiant tube burner of long length is provided to achieve the desired heat patterns within the formation. The burner includes three concentric, closed end tubes with the innermost tube containing a burner and spaced closely adjacent the intermediate tube. A hole pattern in the innermost and intermediate tube establishes a laminar flow of the burner\s products of combustion therebetween which modifies the radiation heat flux pattern so that uniform heat is emitted from the outermost tube along its length.
A fuel fired radiant tube burner comprising: i) a first generally cylindrical heat tube; ii) a second cylindrical heat transfer tube concentrically disposed within said heat tube and defining a longitudinally-extending annular exhaust gas passageway therebetween; iii) a third cylindrical burner tube
A fuel fired radiant tube burner comprising: i) a first generally cylindrical heat tube; ii) a second cylindrical heat transfer tube concentrically disposed within said heat tube and defining a longitudinally-extending annular exhaust gas passageway therebetween; iii) a third cylindrical burner tube concentrically disposed within said second tube and defining a longitudinally-extending annular heat distribution passageway therebetween; iv) burner means within said third tube at one axial end of said third tube and sealed with respect thereto for igniting, combusting and burning a source of fuel and air to form heated products of combustion within said third tube casing; v) plate means closing said first, second and third tube axial end openings which are adjacent one another, said plate means effective to cause said products of combustion to enter said heat distribution passageway; and vi) aperture and opening means associated with said heat distribution passageway for developing a substantially laminar flow of said products of combustion within said heat distribution passageway, said laminar flow establishing a convective heat flux to modify the radiation heat flux produced by said second heat transfer tube is effective to uniformly heat said first cylindrical heat tube substantially along its length adjacent said second tube casing.
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