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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0841494 (2001-04-24) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 227 인용 특허 : 271 |
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat may be supplie
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat may be supplied to the formation by reacting an oxidant with hydrocarbons adjacent to heater wellbores to generate heat. Generated heat may be transferred to the portion substantially by conduction to pyrolyze at least a portion of the hydrocarbons within the portion.
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat may be supplie
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat may be supplied to the formation by reacting an oxidant with hydrocarbons adjacent to heater wellbores to generate heat. Generated heat may be transferred to the portion substantially by conduction to pyrolyze at least a portion of the hydrocarbons within the portion. -4877075, 19891000, Markowitz, 160/084.1; US-4880045, 19891100, Stahler, 160/084.1; US-4886102, 19891200, Debs, 160/177; US-4955421, 19900900, Torti, 160/243; US-4984617, 19910100, Corey, 160/084.1; US-5054162, 19911000, Rogers, 016/198; US-5067541, 19911100, Coslett, 160/084.1; US-5083598, 19920100, Schon, 160/084.1; US-5103888, 19920400, Nakamura, 160/171; US-5105867, 19920400, Coslett, 160/084.1; US-5133399, 19920700, Hiller et al., 160/171; US-5141041, 19920800, Katz et al., 160/084.1; US-5157808, 19921000, Sterner, Jr., 016/197; US-5170108, 19921200, Peterson et al., 318/469; US-5170830, 19921200, Coslett, 160/084.1; US-5178200, 19930100, Hagen, 160/107; US-5184660, 19930200, Jelic, 160/171; US-5228491, 19930700, Rude et al., 160/171; US-5274357, 19931200, Riordan, 340/550; US-5313998, 19940500, Colson et al., 160/084.1D; US-5318090, 19940600, Chen, 160/171; US-5320154, 19940600, Colson et al., 160/121.1; US-5363898, 19941100, Sprague, 160/098; US-5391967, 19950200, Domel et al., 318/254; US-5413161, 19950500, Corazzini, 160/00콕�-54 improving the corrosion resistance of a condensing heat exchanger structure which includes a ferrous substrate and a surface portion at least partially exposed to a combustion product-containing environment. In such method, a corrosion resistant diffusion coating is applied onto the ferrous substrate via a fluidized bed application. held against the roof by a build up of pressure below said closure means;an external sealing means mounted about said core radially expandable to seal against the interior of said tubulars;a flow path for well fluids and/or gases between said core and the underside of said external sealing means;an internal sealing means disposed between or on the core and/or the underside of said external sealing means;said internal and external sealing means retarding a flow of well fluids and/or gases which thereby increases well pressure below the plunger to thereby move the plunger and well fluids to a well surface when the well pressure inside the tubulars above the plunger is reduced.23. The plunger of claim 22, wherein the means for closing the inner passage of the chamber is a plunger stopper, the stopper having a head, the head having a first end and a second end, the first end of the head resting against the roof in the closed position, the second end resting against the chamber floor in the open position and having a stem attached thereto, the stem extending downwardly through the opening in the floor and into the bore and extending outwardly from the bottom opening of the plunger, wherein the stopper stem is capable of being pushed upward so that the first end of the head becomes seated against the roof to close the opening between the chamber and the inner passage, thereby obstructing flow of well fluids and/or gases into the inner passage.24. The plunger of claim 23, wherein the top of the stopper head has a stem attached thereto, and wherein the stem is pushed into the inner passage above said chamber when the stopper is in the closed position.25. The plunger of claim 23, having a plurality of ports in the bottom end for the entry of well fluids and/or gases into the chamber, the ports having an inlet opening in the outside walls of said bottom end and an outlet opening in the walls of said chamber and a passage between the inlet and the outlet ports, said ports b
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