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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0170564 (1993-12-20) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 307 인용 특허 : 0 |
A method for heat injection into a subterranean diatomite formation is provided. A heater is placed in a wellbore within the diatomite formation, and the heater is then operated at a temperature above that which the heater could be operated at long term in order to better sinter the formation in the
A method for heat injection into a subterranean diatomite formation is provided. A heater is placed in a wellbore within the diatomite formation, and the heater is then operated at a temperature above that which the heater could be operated at long term in order to better sinter the formation in the vicinity of the wellbore. The improved sintering of the diatomite significantly improves the heat transfer coefficient of the diatomite and thereby increases the rate at which heat can be injected from a constant limited long term heater temperature.
A method for heating a subterranean diatomite formation, the method comprising the steps of: (a) drilling a wellbore into the diatomite formation; (b) inserting a heater into the wellbore; (c) initially operating at a long term operating temperature for a time period of greater than about six months
A method for heating a subterranean diatomite formation, the method comprising the steps of: (a) drilling a wellbore into the diatomite formation; (b) inserting a heater into the wellbore; (c) initially operating at a long term operating temperature for a time period of greater than about six months, which long term operating temperature is at or below a temperature at which the heater would be expected to operate for a period of about ten years or longer; (d) raising the heater temperature to a temperature that is at least 100°F. greater than the long term operating temperature for between about one day and about thirty days thereby sintering the diatomite formation in the vicinity of the heater; and (e) operating the heater for an extended period of time at or below the long term operating temperature.
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