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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0604299 (1975-08-13) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 349 인용 특허 : 0 |
Hydrocarbons are recovered from a subterranean formation by providing a plurality of generally horizontal boreholes in the formation. The boreholes are vertically spaced across the thickness of the formation and extend from the top to the bottom thereof. Selected boreholes are heated by means of an
Hydrocarbons are recovered from a subterranean formation by providing a plurality of generally horizontal boreholes in the formation. The boreholes are vertically spaced across the thickness of the formation and extend from the top to the bottom thereof. Selected boreholes are heated by means of an external source to drive off hot hydrocarbon gases. The hot gases are fed to selected, unheated boreholes to effect a preheating of the selected boreholes and to cool the hot gases prior to their recovery from the formation.
A method of producing hydrocarbons from a hydrocarbon-containing subterranean formation, comprising the steps of: a. providing a plurality of boreholes extending generally horizontally from a central dug access area into the hydrocarbon-containing formation, said boreholes being provided in vertical
A method of producing hydrocarbons from a hydrocarbon-containing subterranean formation, comprising the steps of: a. providing a plurality of boreholes extending generally horizontally from a central dug access area into the hydrocarbon-containing formation, said boreholes being provided in vertically spaced relation from top to the bottom of the formation; b. selectively heating the boreholes adjacent the top of the formation to a first predetermined temperature which is sufficiently high to drive hydrocarbons from the formation in the form of hot gases; c. selectively establishing fluid communication between the boreholes adjacent the top of the formation and predetermined lower boreholes by external pipe or conduit access; d. passing said hot gases from the heated boreholes adjacent the top of the formation to said predetermined lower boreholes to effect heat exchange between said gases and the areas of the formation adjacent said predetermined lower boreholes, thus cooling said hot gases and preheating the areas of the formation adjacent said lower boreholes; e. serially heating to said first predetermined temperature successively lower boreholes relative to the top of the formation to drive hot hydrocarbon gases from the formation adjacent said successively lower boreholes, said predetermined temperature moving downwardly through the formation as successively lower boreholes are heated; f. serially and selectively establishing fluid communication between the successively heated lower boreholes and selected unheated boreholes to exchange heat from the generated hot hydrocarbon gases to the relatively cooler areas of the formation adjacent said unheated boreholes; g. continuing the serial heating of lower boreholes until all of said boreholes have been heated to said first predetermined temperature; and h. recovering the hydrocarbons driven from the formation by means of an in-situ heat exchange-refinery apparatus.
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