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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0096000 (1987-09-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 321 인용 특허 : 9 |
A majority amount of a heavy hydrocarbon crude is reacted with a minor amount of brine, at supercritical temperature and pressure for the brine, for a predetermined period of time in order to upgrade and convert the heavy hydrocarbon crude into a lighter hydrocarbon crude of higher API gravity. The
A majority amount of a heavy hydrocarbon crude is reacted with a minor amount of brine, at supercritical temperature and pressure for the brine, for a predetermined period of time in order to upgrade and convert the heavy hydrocarbon crude into a lighter hydrocarbon crude of higher API gravity. The upgrading and conversion of a viscous heavy hydrocarbonaceous crude oil into lighter hydrocarbons is accomplished in a continuous reactor system and may be accomplished in a subterranean petroleum reservoir at supercritical temperature and pressure. The overall heat of reaction is neutral, i.e., neither exothermic nor endothermic. In order to provide the necessary temperature, heat is added to the system prior to the reaction. For an in situ application, a combustion operation may be utilized to provide the necessary temperature, and is initiated using an oxidizing gas injected through an injection well. After a predetermined amount of time, injection of the oxidizing gas is terminated and the injection well is shut-in for a predetermined period of time to permit the petroleum reservoir to undergo a soak period in order to increase the temperature and decrease the viscosity of the viscous heavy hydrocarbonaceous crude oil. As the viscosity of the heavy hydrocarbonaceous crude oil decreases, the oil flows downwardly into the combustion zone steam and/or brine is injected which is at supercritical conditions in order to upgrade the heavy hydrocarbonaceous crude oil into lighter fractions. The reaction products from a reactor or an in situ operation are also lower in obnoxious constituents such as sulfur, nitrogen and heavy metals.
A continuous process for converting a hydrocarbon fuel crude oil with an API gravity into a hydrocarbon crude oil product having a higher API gravity compared to that of the feed crude oil comprising (a) introducing into a reactor a mixture containing a first hydrocarbon crude with a first API gravi
A continuous process for converting a hydrocarbon fuel crude oil with an API gravity into a hydrocarbon crude oil product having a higher API gravity compared to that of the feed crude oil comprising (a) introducing into a reactor a mixture containing a first hydrocarbon crude with a first API gravity and from about 2 wt. % brine to less than about 50 wt. % brine; and (b) reacting the first hydrocarbon crude with the brine in the reactor at at least the supercritical temperature and pressure for the brine in order to convert the first hydrocarbon crude into a second hydrocarbon crude having a second API gravity that is higher than the first API gravity of the first hydrocarbon crude.
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