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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0571391 (1990-08-23) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 299 인용 특허 : 0 |
An apparatus and method are disclosed for producing thick tar sand deposits by preheating of thin, relatively highly conductive layers which are a small fraction of the total thickness of a tar sand deposit, with horizontal electrodes and steam stimulation. The preheating is continued until the visc
An apparatus and method are disclosed for producing thick tar sand deposits by preheating of thin, relatively highly conductive layers which are a small fraction of the total thickness of a tar sand deposit, with horizontal electrodes and steam stimulation. The preheating is continued until the viscosity of the tar in a thin preheated zone adjacent to the highly conductive layers is reduced sufficiently to allow steam injection into the tar sand deposit. The entire deposit is then produced by steam flooding.
A process for recovering hydrocarbons from hydrocarbon-bearing deposits containing thin highly conductive layers adjacent to at lease one hydrocarbon rich zone, the process comprising the steps of: selecting a hydrocarbon-bearing deposit which contains a thin highly conductive layer within the depos
A process for recovering hydrocarbons from hydrocarbon-bearing deposits containing thin highly conductive layers adjacent to at lease one hydrocarbon rich zone, the process comprising the steps of: selecting a hydrocarbon-bearing deposit which contains a thin highly conductive layer within the deposit; installing at least one pair of horizontal electrodes spanning the highly conductive layer and dividing the layer into electrically heated and non-electrically heated zones; providing at least one vertical injection well for hot fluid injection into the hydrocarbon rich zone; providing at least one vertical production well for production of hydrocarbons; electrically heating the thin highly conductive layer to form a preheated zone immediately adjacent to the thin highly conductive layer while simultaneously stimulating the wells with steam; injecting the hot fluid into the deposit adjacent to the thin highly conductive layer and within the thin preheated zone to displace the hydrocarbons to the production wells; and recovering hydrocarbons from the production wells. An apparatus for recovering hydrocarbons from tar sand deposits containing highly conductive layers comprising: at least two pairs of horizontal electrodes which span the highly conductive layer and divide the highly conductive layer into at least two horizontally displaced electrically heated zones separated by non-electrically heated zones; at least one vertical injection well; and at least one vertical production well.
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