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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0779761 (1985-09-24) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 321 인용 특허 : 2 |
An oil and water-containing subterranean reservoir can be heated in a manner capable of inducing an economically feasible production of oil from zones which were initially so impermeable as to be undesirably unproductive in response to injections of oil recovery fluids. Treatment zones of specified
An oil and water-containing subterranean reservoir can be heated in a manner capable of inducing an economically feasible production of oil from zones which were initially so impermeable as to be undesirably unproductive in response to injections of oil recovery fluids. Treatment zones of specified thickness are conductively heated from boreholes arranged in a specified pattern of heat-injecting and fluid-producing wells and heated to above about 600°C.
A process for heating a subterranean oil and water-containing reservoir formation, comprising: completing at least one each of heat-injecting and fluid-producing wells into a treatment interval of said formation which is at least about 100 feet thick, contains both oil and water, and is both undesir
A process for heating a subterranean oil and water-containing reservoir formation, comprising: completing at least one each of heat-injecting and fluid-producing wells into a treatment interval of said formation which is at least about 100 feet thick, contains both oil and water, and is both undesirably impermeable and non-productive in response to injections of oil recovery fluids; arranging said wells to have boreholes which, substantially throughout the treatment interval, are substantially parallel and are separated by substantially equal distances of at least about 20 feet; in each heat-injecting well, substantially throughout the treatment interval, sealing the face of the reservoir formation with a solid material which is relatively heat-conductive and substantially fluid impermeable; in each fluid-producing well, substantially throughout the treatment interval, establishing fluid communication between the wellbore and the reservoir formation and arranging the well for producing fluid from the reservoir formation; and heating the interior of each heat-injecting well, at least substantially throughout the treatment interval, at a rate or rates capable of (a) increasing the temperature within the borehole interior to at least about 600°C. and (b) maintaining a borehole interior temperature of at least about 600°C. without causing it to become high enough to thermally damage equipment within the borehole while heat is being transmitted away from the borehole at a rate not significantly faster than that permitted by the thermal conductivity of the reservoir formation.
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