EP0067079B1 - Verfahren und Anlage zur Kohlenvergasung Untertage - Google Patents
Verfahren und Anlage zur Kohlenvergasung Untertage Download PDFInfo
- Publication number
- EP0067079B1 EP0067079B1 EP82400780A EP82400780A EP0067079B1 EP 0067079 B1 EP0067079 B1 EP 0067079B1 EP 82400780 A EP82400780 A EP 82400780A EP 82400780 A EP82400780 A EP 82400780A EP 0067079 B1 EP0067079 B1 EP 0067079B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jet
- coal
- underground gasification
- napp
- gasification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 238000002309 gasification Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 14
- 238000009434 installation Methods 0.000 title claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 238000011065 in-situ storage Methods 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 2
- 238000005065 mining Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- -1 steam Substances 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 4
- 239000004459 forage Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/14—Drilling by use of heat, e.g. flame drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S48/00—Gas: heating and illuminating
- Y10S48/06—Underground gasification of coal
Definitions
- the invention relates to a method for underground gasification of coal, according to which a gasifying agent is led through a borehole, which is sprayed in situ towards a coal seam, where a combustible gas is extracted. resulting from an incomplete combustion of said coal, which is brought to the surface in a current flowing against the current and around the jet of gasifying agent and which is led to the surface through said drilling (see US- A-4,010,801). We know that this ensures the formation of combustible gas generally comprising at least carbon monoxide, and very variable amounts of methane.
- the object of the present invention is to simplify the means used to ensure in situ gasification of coal, in particular localized at a very great depth, by considerably simplifying the means used and by ensuring precise control of the phenomenon of incomplete combustion.
- annular sheet of an insulating fluid is sent around the jet of gasifying agent, co-current thereof, intended to separate the jet and the stream of combustible gas.
- the fluid of the annular ply is water, if necessary, in the form of water vapor.
- the isolation of the gasifying jet it is possible to ensure a large distance between the head delivering the gasifying agent and the combustion front, while avoiding any complementary reaction of complete combustion.
- the invention also relates to an installation for implementing this method, according to claim 8.
- a nozzle 1 at the end of a pipe 2 placed in a borehole 3 extending from the surface 4 to a coal seam 5 occurs in an area median of the coal seam 5.
- This nozzle 1 consists of a preferably supersonic nozzle 10 of diverging convergent shape and of a co-axial pipe 11 which is also connected to the pipe 2 which is in the form a double tube, one central connected to the central nozzle duct 10, the other coaxial connected to the coaxial nozzle ducts 11, the axial nozzle duct 10 is supplied with oxygen under pressure, while the ducts annulars 11 are supplied with pressurized steam.
- the nozzle 1 operates in the following way: by its calibrated orifice 20, a concentrated and directed oxygen jet 21 of elongated shape and at supersonic speed has a dart 22 whose end enters an impact with the coal, while the steam of water flows around the jet 21 in an annular curtain 30 which extends at least over a large part of the extension of the directive jet 21.
- the oxygen at the point of impact, causes combustion incomplete coal.
- An annular stream of combustible gas 23 at high temperature rises according to the arrows FF 'around the oxygen jet-water vapor curtain assembly. During its journey, the gas cools in contact with the layer of coal and water vapor: the resulting chemical reactions greatly increase its calorific value.
- This combustible gas is taken in at the foot of the borehole by a second annular pipe 6 formed by an envelope 7 surrounding the double tubular pipe 2 at a distance.
- the water vapor constitutes not only an active element in the incomplete combustion , but also plays a decisive role in avoiding contact between the combustible gas and oxygen sting; without this, water vapor curtain, or other means of separation, the combustible gas would oxidize during this course at the level of oxygen, which, of course, would make impossible the desired partial gasification.
- the directive jet of oxygen 21 can have a very large extension in the axial direction, since the distance between the dart 22 and the nozzle 1 can be several tens of meters.
- optical control device 51 makes it possible, by laterally oriented combustion operations, to verify that one is still in a middle position of the coal seam, because this control device 51 makes it possible to detect immediately any drop in temperature when the sting 22 of the directive jet of oxygen 21 meets the rock.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Air Supply (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Claims (12)
1. Verfahren zur Kohlevergasung untertage, bei dem man durch eine Bohrung (3) ein Vergasungsmittel führt, das man in situ in Form eines Gasstrahles (21) in Richtung auf ein Kohleflöz (5) richtet, und ein aus einer unvollständigen Verbrennung dieser Kohle resultierendes brennbares Gas abzieht, das man als Strom an die Oberfläche führt, der im Gegenstrom zu dem und um den Vergasungsmittelstrahl (21) herum strömt und der durch die Bohrung (3) an die Oberfläche geführt wird, dadurch, gekennzeichent, daß man um diesen Vergasungsmittelstrahl (21) im Gleichstrom mit ihm einen Ringmantel (30) eines isolierenden Fließmittels schickt, das dazu bestimmt ist, diesen Strahl (21) und den Strom (23) von brennbarem Gas voneinander zu trennen.
2. Verfahren zur Kohlevergasung untertage nach Anspruch 1, dadurch gekennzeichnet, daß das Fließmittel des Ringmantels (30) Wasser, gegebenenfalls in der Form von Wasserdampf ist.
3. Verfahren zur Kohlevergasung untertage nach Anspruch 1, dadurch gekennzeichnet, daß das Fließmittel des Ringmantels ein neutrales Gas, wie beispielsweise Kohlendioxidgas ist.
4. Verfahren zur Kohlevergasung untertage nach Anspruch 1, dadurch gekennzeichnet, daß das Vergasungsmittel Sauerstoff ist, der gegebenenfalls periodisch durch Wasserstoff ersetzt wird.
5. Verfahren zur Kohlevergasung untertage nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß man am äußeren Umfang des Ringmantels von isolierendem Fließmittel ein zweites Gas, wie Wasserdampf, Kohlendioxidgas oder Wasserstoff einspritzt.
6. Verfahren zur Kohlevergasung untertage nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß man zunächst eine solche anfängliche Vergasungsoperation geradlinig durchführt, um einen Grubenstollen (50) mit mittlerer Ausdehnung in dem Kohleflöz (51) zu bilden, und daß man anschließend mehrere seitliche Vergasungsoperationen stufenweise entlang beiderseits des Grubenstollens (50) durchführt.
7. Verfahren zur Kohlevergasung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Wasserdampfmantel zur Verdampfung von am Ende der Bohrung eingespritztem Wasser führt, das sich durch Wärmeaustausch mit dem an die Oberfläche wieder aufsteigenden brennbaren Gas erwärmt.
8. Vorrichtung zur Kohlevergasung untertage zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7 mit einer ersten Rohrleitung (2), die sich durch eine Bohrung (3) bis zu einem Kohleflöz (5) erstreckt, einem verlagerbaren Mundstück (10, 61) am Ende dieser Rohrleitung, das einen gasförmigen gerichteten Strahl von Vergasungsfließmittel bilden kann, gekennzeichnet durch eine zweite Rohrleitung (11, 62), die sich in dieser Bohrung (3) bis zu dem Mundstück für die Bildung des gerichteten Vergasungsfließmittetstrahts (21) erstreckt und so ausgebildet ist, daß sie um diesen Vergasungsmittelstrahl (21) im Gleichstrom zu diesem einen Ringmantel (30) eines isolierenden Fließmittels bilden kann.
9. Vorrichtung zur Kohlevergasung untertage nach Anspruch 8, wobei das Mundstück (10) mit axialen Gleitmitteln ausgestattet ist, dadurch gekennzeichnet, daß das Mundstück am Ende einer doppelten Drehkupplung (44, 45) befestigt ist.
10. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die zweite Rohrleitung (11, 62) koaxial zu der ersten Rohrleitung und dem Mundstück (10, 61) angeordnet ist.
11. Vorrichtung zur Kohlevergasung untertage nach Anspruch 10, dadurch gekennzeichnet, daß das Mundstück (10, 61) vom axial konvergiereddivergierenden Typ ist.
12. Vorrichtung zur Kohlevergasung untertage nach Anspruch 11, dadurch gekennzeichnet, daß sie eine dritte Rohrleitung (63) aufweist, die so ausgebildet ist, daß sie einen zweiten Mantel von isolierendem Fließmittel um den ersten Mantel herum einspritzt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82400780T ATE14035T1 (de) | 1981-06-05 | 1982-04-29 | Verfahren und anlage zur kohlenvergasung untertage. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8111149A FR2507204B1 (fr) | 1981-06-05 | 1981-06-05 | Procede et installation de gazeification souterraine de charbon |
| FR8111149 | 1981-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0067079A1 EP0067079A1 (de) | 1982-12-15 |
| EP0067079B1 true EP0067079B1 (de) | 1985-06-26 |
Family
ID=9259227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82400780A Expired EP0067079B1 (de) | 1981-06-05 | 1982-04-29 | Verfahren und Anlage zur Kohlenvergasung Untertage |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4479540A (de) |
| EP (1) | EP0067079B1 (de) |
| JP (1) | JPS57212295A (de) |
| AT (1) | ATE14035T1 (de) |
| AU (1) | AU546520B2 (de) |
| CA (1) | CA1212898A (de) |
| DE (1) | DE3264409D1 (de) |
| ES (1) | ES512848A0 (de) |
| FR (1) | FR2507204B1 (de) |
| IN (1) | IN158484B (de) |
| NZ (1) | NZ200837A (de) |
| ZA (1) | ZA823560B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113991A (zh) * | 2015-09-22 | 2015-12-02 | 中国矿业大学(北京) | 一种蒸汽射流钻头 |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776638A (en) * | 1987-07-13 | 1988-10-11 | University Of Kentucky Research Foundation | Method and apparatus for conversion of coal in situ |
| CN1055332C (zh) * | 1995-03-15 | 2000-08-09 | 柴兆喜 | 拉管注气点后退式煤层气化方法 |
| US20100276139A1 (en) * | 2007-03-29 | 2010-11-04 | Texyn Hydrocarbon, Llc | System and method for generation of synthesis gas from subterranean coal deposits via thermal decomposition of water by an electric torch |
| CN101988382B (zh) * | 2010-08-31 | 2014-07-16 | 新奥科技发展有限公司 | 调节气化剂在井下的流动方向的可活动设备及方法 |
| US20120103604A1 (en) * | 2010-10-29 | 2012-05-03 | General Electric Company | Subsurface heating device |
| WO2012109711A1 (en) * | 2011-02-18 | 2012-08-23 | Linc Energy Ltd | Igniting an underground coal seam in an underground coal gasification process, ucg |
| WO2014089603A1 (en) * | 2012-12-14 | 2014-06-19 | Linc Energy Ltd | Apparatus for igniting an underground coal seam |
| WO2014186823A1 (en) * | 2013-05-23 | 2014-11-27 | Linc Energy Ltd | Oxidant and water injection apparatus |
| CN103541714B (zh) * | 2013-10-30 | 2016-06-15 | 新奥气化采煤有限公司 | 喷头及煤炭地下气化方法 |
| CN104533377A (zh) * | 2014-11-06 | 2015-04-22 | 新奥气化采煤有限公司 | 一种喷嘴及气化方法 |
| CN104564008B (zh) * | 2014-12-18 | 2018-05-01 | 新奥科技发展有限公司 | 煤炭地下气化装置及其气化方法 |
| CN104632179B (zh) * | 2015-01-28 | 2019-04-23 | 新奥科技发展有限公司 | 喷嘴 |
| CN104612652B (zh) * | 2015-01-28 | 2019-04-23 | 新奥科技发展有限公司 | 喷嘴 |
| CN104632181B (zh) * | 2015-02-03 | 2018-01-16 | 新奥科技发展有限公司 | 喷嘴 |
| CN104632180A (zh) * | 2015-02-03 | 2015-05-20 | 新奥气化采煤有限公司 | 喷嘴 |
| CN104632182B (zh) * | 2015-02-03 | 2018-08-24 | 新奥科技发展有限公司 | 一种喷嘴 |
| CN105756653B (zh) * | 2015-11-11 | 2021-08-03 | 新奥科技发展有限公司 | 喷嘴及具有该喷嘴的注气装置 |
| CN106761653B (zh) * | 2017-01-12 | 2023-03-14 | 中为(上海)能源技术有限公司 | 用于煤炭地下气化工艺的喷头设备及其操作方法 |
| CN112496017B (zh) * | 2020-11-12 | 2022-06-14 | 江苏大地益源环境修复有限公司 | 一种基于蒸汽强化的原位热传导脱附系统及其工艺 |
| CN114704236B (zh) * | 2021-12-28 | 2024-05-17 | 中国石油天然气集团有限公司 | 煤炭地下气化用点火燃烧器及点火方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2680486A (en) * | 1949-01-04 | 1954-06-08 | Phillips Petroleum Co | Method and apparatus for well operations employing hydrogen peroxide |
| US2902270A (en) * | 1953-07-17 | 1959-09-01 | Svenska Skifferolje Ab | Method of and means in heating of subsurface fuel-containing deposits "in situ" |
| US3093197A (en) * | 1958-12-09 | 1963-06-11 | Union Carbide Corp | Method and apparatus for thermally working minerals and mineral-like materials |
| US3572839A (en) * | 1968-08-28 | 1971-03-30 | Toa Kowan Kogyo Kk | Process for excavation of hard underwater beds |
| US3563606A (en) * | 1969-03-24 | 1971-02-16 | St Joe Minerals Corp | Method for in-situ utilization of fuels by combustion |
| US4010801A (en) * | 1974-09-30 | 1977-03-08 | R. C. Terry | Method of and apparatus for in situ gasification of coal and the capture of resultant generated heat |
| DE2623318A1 (de) * | 1975-06-02 | 1976-12-23 | Inst Nat Des Ind Extractives I | Verfahren und vorrichtung zum verschwelen fester brennstoffe unter tage |
| US4078613A (en) * | 1975-08-07 | 1978-03-14 | World Energy Systems | Downhole recovery system |
| US4079784A (en) * | 1976-03-22 | 1978-03-21 | Texaco Inc. | Method for in situ combustion for enhanced thermal recovery of hydrocarbons from a well and ignition system therefor |
| US4067390A (en) * | 1976-07-06 | 1978-01-10 | Technology Application Services Corporation | Apparatus and method for the recovery of fuel products from subterranean deposits of carbonaceous matter using a plasma arc |
| GB1597952A (en) * | 1976-12-20 | 1981-09-16 | Sabol K | Method of boring lateral channels through a subsurface carbonaceous deposit |
| DE2709437C2 (de) * | 1977-03-04 | 1982-09-09 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Verfahren zum Herstellen von Bohrungen in Kohleflözen |
| US4185692A (en) * | 1978-07-14 | 1980-01-29 | In Situ Technology, Inc. | Underground linkage of wells for production of coal in situ |
| US4356866A (en) * | 1980-12-31 | 1982-11-02 | Mobil Oil Corporation | Process of underground coal gasification |
-
1981
- 1981-06-05 FR FR8111149A patent/FR2507204B1/fr not_active Expired
-
1982
- 1982-04-29 DE DE8282400780T patent/DE3264409D1/de not_active Expired
- 1982-04-29 AT AT82400780T patent/ATE14035T1/de not_active IP Right Cessation
- 1982-04-29 EP EP82400780A patent/EP0067079B1/de not_active Expired
- 1982-05-18 IN IN373/DEL/82A patent/IN158484B/en unknown
- 1982-05-20 AU AU83865/82A patent/AU546520B2/en not_active Ceased
- 1982-05-21 ZA ZA823560A patent/ZA823560B/xx unknown
- 1982-05-24 US US06/381,623 patent/US4479540A/en not_active Expired - Fee Related
- 1982-05-31 CA CA000404134A patent/CA1212898A/fr not_active Expired
- 1982-06-02 NZ NZ200837A patent/NZ200837A/en unknown
- 1982-06-04 ES ES512848A patent/ES512848A0/es active Granted
- 1982-06-05 JP JP57095618A patent/JPS57212295A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113991A (zh) * | 2015-09-22 | 2015-12-02 | 中国矿业大学(北京) | 一种蒸汽射流钻头 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1212898A (fr) | 1986-10-21 |
| ATE14035T1 (de) | 1985-07-15 |
| FR2507204B1 (fr) | 1985-07-05 |
| DE3264409D1 (en) | 1985-08-01 |
| JPS57212295A (en) | 1982-12-27 |
| ES8307885A1 (es) | 1983-08-01 |
| US4479540A (en) | 1984-10-30 |
| EP0067079A1 (de) | 1982-12-15 |
| ES512848A0 (es) | 1983-08-01 |
| NZ200837A (en) | 1986-02-21 |
| AU8386582A (en) | 1982-12-09 |
| ZA823560B (en) | 1983-03-30 |
| IN158484B (de) | 1986-11-22 |
| AU546520B2 (en) | 1985-09-05 |
| FR2507204A1 (fr) | 1982-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0067079B1 (de) | Verfahren und Anlage zur Kohlenvergasung Untertage | |
| AU2017392170B2 (en) | Nozzle and injection device for use in underground coal gasification process and method for operating injection device | |
| US11021943B2 (en) | Ignition device for underground coal gasification process, and applications thereof | |
| US20190383112A1 (en) | Tool for severing or assisting in the severing of a conduit | |
| CN106150472B (zh) | 用于煤炭地下气化工艺的接合管注入系统及操作方法 | |
| CN106121619B (zh) | 用于煤炭地下气化过程的点火设备及其应用 | |
| CN103380266A (zh) | 在煤炭地下气化过程ucg中点燃地下煤层 | |
| AU2016420452B2 (en) | Oxidizing agent injection equipment for underground coal gasification process and application thereof | |
| EP0296032A1 (de) | Verbrennungssystem mit hoher Abgasaustrittsgeschwindigkeit | |
| CN106121618B (zh) | 用于煤炭地下气化过程的氧化剂注入设备及其应用 | |
| US20240418066A1 (en) | Steam generator tool | |
| CN106223926B (zh) | 一种多通道连续管 | |
| CN109025950A (zh) | 用于煤炭地下气化工艺的光纤激光点火系统及其操作方法 | |
| FR2841486A1 (fr) | Procede pour etablir au moins un jet de gaz coherent et lance a jets coherents | |
| CN206053929U (zh) | 用于煤炭地下气化过程的点火设备 | |
| CN108729916A (zh) | 一种地下气化炉煤层点火装置及后退重复点火气化方法 | |
| CN208885262U (zh) | 用于煤炭地下气化工艺的光纤激光点火系统 | |
| EP0131499B1 (de) | Verfahren zur Oxydation von kohlenwasserstoffhaltigen untertägigen sedimentären Lagerstätten | |
| AU2015100327A4 (en) | Oxygen injection device and method | |
| US20230383942A1 (en) | Steam generator tool | |
| CN103313798B (zh) | 燃烧热发生器和用于增强的油开采的系统和方法 | |
| EP0190091A1 (de) | Gas-Stabbrenner mit mechanischer Luftzuführung | |
| FR2676499A1 (fr) | Procede et dispositif d'extinction d'une colonne verticale de produits enflammes. | |
| NZ613705B2 (en) | Igniting an underground coal seam in an underground coal gasification process | |
| LU88139A1 (fr) | Procédé et dispositif pour l'injection de charbon pulvérisé dans un creuset de haut fourneau |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19820503 |
|
| AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT LU NL SE |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT LU NL SE |
|
| REF | Corresponds to: |
Ref document number: 14035 Country of ref document: AT Date of ref document: 19850715 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 3264409 Country of ref document: DE Date of ref document: 19850801 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19860430 |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19890308 Year of fee payment: 8 Ref country code: AT Payment date: 19890308 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19890315 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19890328 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19890331 Year of fee payment: 8 Ref country code: DE Payment date: 19890331 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19890403 Year of fee payment: 8 |
|
| ITTA | It: last paid annual fee | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19890430 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19900429 Ref country code: AT Effective date: 19900429 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19900430 Ref country code: BE Effective date: 19900430 |
|
| BERE | Be: lapsed |
Owner name: L' AIR LIQUIDE S.A. POUR L'ETUDE ET L'EXPLOITATION Effective date: 19900430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19901101 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19901228 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19910101 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| EUG | Se: european patent has lapsed |
Ref document number: 82400780.1 Effective date: 19910115 |