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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0757386 (1991-09-10) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 279 인용 특허 : 0 |
A method is disclosed for providing sharp breakthrough of tracers in a two-well tracer test by injecting a relatively small volume of tracer at a high rate into a temporary injection well, and utilizing the flow induced by producing wells to transport the tracers across the formation to a producing
A method is disclosed for providing sharp breakthrough of tracers in a two-well tracer test by injecting a relatively small volume of tracer at a high rate into a temporary injection well, and utilizing the flow induced by producing wells to transport the tracers across the formation to a producing well. Measurement of residual oil saturation and sweep can be obtained by this method.
A method to determine the residual oil saturation of an oil-bearing formation having a temporary injection well through which a tracer solution can be inserted into the formation and a fluid production well, wherein production from the production well induces formation fluids to flow from the format
A method to determine the residual oil saturation of an oil-bearing formation having a temporary injection well through which a tracer solution can be inserted into the formation and a fluid production well, wherein production from the production well induces formation fluids to flow from the formation in the vicinity of the injection well comprising the steps of: (1) injecting a tracer solution into the formation through the temporary injection well, the solution comprising a water-soluble tracer and a partitionable tracer that distributes between the formation oil and water; (2) essentially discontinuing injection into the temporary injection well after a slug of tracer solution is injected; (3) producing formation fluids from the production well; (4) monitoring the concentration of each tracer and the volumes of fluids produced from the producing well borehole; and (5) determining the formation residual oil saturation from the chromatographic separation of the water-soluble tracer and the partitionable tracer as indicated by the volume of fluids produced the producing well borehole between the time the tracer solution is injected and the times the water-soluble and partitionable tracers are detected in the fluids produced from the producing well borehole.
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