FR2396792A1 - Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs - Google Patents
Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costsInfo
- Publication number
- FR2396792A1 FR2396792A1 FR7820441A FR7820441A FR2396792A1 FR 2396792 A1 FR2396792 A1 FR 2396792A1 FR 7820441 A FR7820441 A FR 7820441A FR 7820441 A FR7820441 A FR 7820441A FR 2396792 A1 FR2396792 A1 FR 2396792A1
- Authority
- FR
- France
- Prior art keywords
- gasification
- coal
- agent
- subterranean
- layer
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/30—Specific pattern of wells, e.g. optimizing the spacing of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/247—Combustion in situ in association with fracturing processes or crevice forming processes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
The subterranean gasification of coal incorporates defining the limits of the coal masses in layer by imaginary lines and offsetting the boreholes, by which the gasifications agent is introduced and by which the gaseous products are discharged, w.r.t. the coal front at which the reaction is taking place, in the direction of progression of the gasification. The corresp. feed and discharge holes are at a distance from one another in a direction perpendicular to the progression of gasification, so that the gasification agent circulating from one to the other is in contact with the coal mass. The gasification agent is e.g. air, O2, H2, CO2 and/or steam. The costs of preparing and exploiting the coal layer are minimised. Gasification is possible independently of the disposition and thickness of the layers, and in the case of horizontal as well as inclined layer. A less dense system of pipes is needed than with other installations; the surfaces are less covered and can be used for agriculture. Gasification under high press. e.g. 10-60 bar is possible and gives good contact, partic, useful in the case of coals which are difficult to gasify.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772730484 DE2730484A1 (en) | 1977-07-06 | 1977-07-06 | Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs |
| DE19782817856 DE2817856A1 (en) | 1978-04-24 | 1978-04-24 | Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs |
| DE19782819966 DE2819966A1 (en) | 1978-05-08 | 1978-05-08 | Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs |
| DE19782819965 DE2819965A1 (en) | 1978-05-08 | 1978-05-08 | Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2396792A1 true FR2396792A1 (en) | 1979-02-02 |
Family
ID=27432231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7820441A Withdrawn FR2396792A1 (en) | 1977-07-06 | 1978-07-05 | Subterranean gasification of coal - using matrix of bore-holes for charging gasification agent and discharging prods., minimising costs |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2396792A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030430A1 (en) * | 1979-11-28 | 1981-06-17 | The University Of Newcastle Research Associates Limited | Underground gasification of coal |
| FR2505353A1 (en) * | 1981-05-11 | 1982-11-12 | Inst Ispolzovania Gaza Narod | Two=stage underground gasification of coal - with preliminary partial gasification of production area from array of boreholes |
| RU2796283C1 (en) * | 2022-07-13 | 2023-05-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет", ФГБОУ ВО "СибГИУ" | Method for degassing areas of coal seam in structurally heterogeneous rock mass of seismic active regions of coal basins |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2609249A1 (en) * | 1975-04-02 | 1976-11-04 | Vnii Ispolsowanija Gasa W Naro | METHOD OF UNDERGROUND GASIFICATION |
| FR2328760A1 (en) * | 1975-10-23 | 1977-05-20 | Us Energy | PROCESS FOR THE GASING OF UNDERGROUND COAL |
-
1978
- 1978-07-05 FR FR7820441A patent/FR2396792A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2609249A1 (en) * | 1975-04-02 | 1976-11-04 | Vnii Ispolsowanija Gasa W Naro | METHOD OF UNDERGROUND GASIFICATION |
| FR2328760A1 (en) * | 1975-10-23 | 1977-05-20 | Us Energy | PROCESS FOR THE GASING OF UNDERGROUND COAL |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030430A1 (en) * | 1979-11-28 | 1981-06-17 | The University Of Newcastle Research Associates Limited | Underground gasification of coal |
| FR2505353A1 (en) * | 1981-05-11 | 1982-11-12 | Inst Ispolzovania Gaza Narod | Two=stage underground gasification of coal - with preliminary partial gasification of production area from array of boreholes |
| RU2796283C1 (en) * | 2022-07-13 | 2023-05-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет", ФГБОУ ВО "СибГИУ" | Method for degassing areas of coal seam in structurally heterogeneous rock mass of seismic active regions of coal basins |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |