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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0614044 (1984-05-25) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 322 인용 특허 : 4 |
In a method of recovering petroleum from underground formations penetrated by a production well, superheated steam and then hot hydrogen are injected by way of the well into a preheated formation zone next to the well. The hydrogen is injected under sufficient pressure to cause hydrogenation of the
In a method of recovering petroleum from underground formations penetrated by a production well, superheated steam and then hot hydrogen are injected by way of the well into a preheated formation zone next to the well. The hydrogen is injected under sufficient pressure to cause hydrogenation of the petroleum in the heated zone. The well is shut in and the hydrogen in the heated zone is allowed to “soak”for a period of time after which the pressure in the well is lowered and petroleum is recovered from the heated zone by way of the well. The cycle can be repeated a number of times. By way of another well spaced from the production well, fluid under pressure is injected into said formations to drive petroleum in said formations between the two wells to the production well for recovery. Hydrogenation of the petroleum occurs as it is driven through the heated zone in the presence of the hydrogen therein.
A method of recovering petroleum from underground formations penetrated by a production well, comprising the steps of: by way of said well, injecting into an underground formation zone next to said well, superheated steam at a temperature within a range of from about 350°F. to about 900°F., reducing
A method of recovering petroleum from underground formations penetrated by a production well, comprising the steps of: by way of said well, injecting into an underground formation zone next to said well, superheated steam at a temperature within a range of from about 350°F. to about 900°F., reducing the amount of superheated steam injected and injecting into said underground formation zone bydrogen having a temperature within a range of from about 350°F. to about 900°F., continuing to inject said hydrogen until sufficient pressure is achieved to cause hydrogenation of the petroleum in said formation zone, terminating the injection of said hydrogen, recovering fluids including petroleum from said formation zone by way of said well, by way of another well penetrating said formations and spaced from said production well, injecting into said formations, fluid to drive fluids including petroleum in said formations between said other well and said production well, to said production well, said petroleum in said formations between said other well and said production well being driven through said formation zone, while said formation zone is in a heated condition and in the presence of hydrogen therein to cause hydrogenation of said petroleum as it is being driven through said formation zone to said production well, injecting additional hydrogen into said formation zone by way of said production well to enhance hydrogenation of said petroleum as it is being driven through said formation zone to said production well, and by way of said production well, recovering said petroleum driven to said production well.
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