BE844021A - METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITS - Google Patents
METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITSInfo
- Publication number
- BE844021A BE844021A BE6045596A BE6045596A BE844021A BE 844021 A BE844021 A BE 844021A BE 6045596 A BE6045596 A BE 6045596A BE 6045596 A BE6045596 A BE 6045596A BE 844021 A BE844021 A BE 844021A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- cooling
- underground
- cooling gas
- tube
- Prior art date
Links
- 239000004449 solid propellant Substances 0.000 title claims 2
- 238000000034 method Methods 0.000 title description 4
- 238000001816 cooling Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000002309 gasification Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000112 cooling gas Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
-
- 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
- E21B36/001—Cooling arrangements
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
<EMI ID=1.1>
gaz de gazéification souterraine des gisements de
<EMI ID=2.1>
<EMI ID=3.1>
de perfectionnement du 23 avril 1976, on connaît un
procédé pour le refroidissement des gaz de gazéification
souterraine, qui consiste à introduire, à l'intérieur <EMI ID=4.1>
un dispositif tubulaire dans lequel on réalise une circulation d'eau.
L'appareillage destiné à réaliser ce procédé est constitué de deux tubes concentriques <EMI ID=5.1>
du diaaetre utile du tubage du sondage" et
<EMI ID=6.1>
<EMI ID=7.1>
excessif avant de parvenir au fond du sondage.
])'autres dispositifs de refroidissement utilisent le Mélange direct du gaz et du fluide refroidie-
<EMI ID=8.1>
<EMI ID=9.1>
3.343.598.
Cependant, lorsqu'on recourt au refroidissement par mélange direct, il est indispensable de disposer
<EMI ID=10.1>
le débit refroidissant en fonction des besoins. En
<EMI ID=11.1>
que de surchauffe du tubage) si oe débit est trop élevé, il existe un risque de pénétration d'eau dans les terrains*
La procédé conforme à la présente invention ' pour objet de remédier aux inconvénients des dispositifs de refroidissement par mélange du gaz et du fluide re-
<EMI ID=12.1> Ce résultat est obtenu en introduisant dans la partie inférieure du sondage un dispositif tubulaire
<EMI ID=13.1>
orifices d'échappement à son extrémité supérieure^,
<EMI ID=14.1>
paroi du dispositif et une seconde phase de refroidi."** sèment par mélange du gaz avec l'eau et la vapeur qui
<EMI ID=15.1>
Le principe de cet appareillage est illustré" "
<EMI ID=16.1>
tre une coupe longitudinale passant par l'axe du sondage et par l'axe du dispositif de refroidissement.
<EMI ID=17.1>
Plus petit diamètre, destiné à l'adduction d'eau et qui
<EMI ID=18.1>
<EMI ID=19.1>
Une liaison est réalisée entre le fond supérieur du dispositif de refroidissement et le tube d'adduction
<EMI ID=20.1>
dispositif de refroidissement'" qui pend librement à l'intérieur du tubage du soudage,
Une série de trous 5 disposée en couronne est percée dans le fond supérieur du dispositif, autour du
<EMI ID=21.1> <EMI ID=22.1>
assemblage d'éléments de tubes d'acier raccordés entre eux par des joints filetés, mais il peut aussi être constitué sons la forme d'un tube flexible monobloc
<EMI ID=23.1>
avril <1>976. Dans les deux cas, une isolation thermique adéquate sera prévue, afin que l'eau de refroidissement
<EMI ID=24.1>
Le diamètre. et la Langueur du dispositif confor-
<EMI ID=25.1>
puisse contenir un volume d'eau qui corresponde au vo-
<EMI ID=26.1>
il n'est pas nécessaire de disposer de moyens de régla-
<EMI ID=27.1>
<EMI ID=28.1>
trôle la température du gaz à son arrivée en surface.
Par ailleurs, en cas d'excès de débit d'eau de refroidissement, il n'épate aucun risque que oette eau puisse pénétrer dans les terrains située à la base du sondages en effet, cet excès d'eau est évacué à l'état de gouttelettes de faible dimension qui "l'échappent par les troua 3 en rire temps que la vapeur produite dans
<EMI ID=29.1>
le tube à grande vitesse.
REVENDICATIONS
<EMI ID=30.1>
son extrémité supérieure, grâce auquel on réalise une première phase de refroidissement du gaz par échange de chaleur à travers la paroi du dispositif et une seconde phase de refroidissement, par mélange du gaz avec l'eau et la vapeur qui a'échappent à la partie supérieure du dispositif.
<EMI ID=31.1>
<EMI ID = 1.1>
underground gasification gas from deposits of
<EMI ID = 2.1>
<EMI ID = 3.1>
improvement of 23 April 1976, we know a
process for cooling gasification gases
underground, which consists of introducing, inside <EMI ID = 4.1>
a tubular device in which water is circulated.
The apparatus intended to carry out this process consists of two concentric tubes <EMI ID = 5.1>
the useful diameter of the borehole casing "and
<EMI ID = 6.1>
<EMI ID = 7.1>
excessive before reaching the bottom of the boring.
]) 'other cooling devices use the Direct Mixing of gas and cooled fluid-
<EMI ID = 8.1>
<EMI ID = 9.1>
3,343,598.
However, when direct mixing cooling is used, it is essential to have
<EMI ID = 10.1>
the cooling flow according to the needs. In
<EMI ID = 11.1>
overheating of the casing) if the flow rate is too high, there is a risk of water entering the soil *
The object of the process according to the present invention is to overcome the drawbacks of cooling devices by mixing the gas and the re-fluid.
<EMI ID = 12.1> This result is obtained by inserting a tubular device in the lower part of the borehole
<EMI ID = 13.1>
exhaust ports at its upper end ^,
<EMI ID = 14.1>
wall of the device and a second cooling phase. "** sown by mixing gas with water and steam which
<EMI ID = 15.1>
The principle of this apparatus is illustrated ""
<EMI ID = 16.1>
be a longitudinal section passing through the axis of the borehole and through the axis of the cooling device.
<EMI ID = 17.1>
Smaller diameter, intended for water supply and which
<EMI ID = 18.1>
<EMI ID = 19.1>
A connection is made between the upper bottom of the cooling device and the supply tube
<EMI ID = 20.1>
cooling device '' which hangs freely inside the welding casing,
A series of holes 5 arranged in a ring is drilled in the upper bottom of the device, around the
<EMI ID = 21.1> <EMI ID = 22.1>
assembly of elements of steel tubes connected to each other by threaded joints, but it can also be formed in the form of a single-piece flexible tube
<EMI ID = 23.1>
April <1> 976. In both cases, adequate thermal insulation will be provided, so that the cooling water
<EMI ID = 24.1>
The diameter. and the Languor of the compliant device
<EMI ID = 25.1>
can contain a volume of water that corresponds to your
<EMI ID = 26.1>
it is not necessary to have means of adjusting
<EMI ID = 27.1>
<EMI ID = 28.1>
controls the temperature of the gas when it arrives at the surface.
In addition, in the event of an excess of cooling water flow, there is no risk that this water may penetrate the land located at the base of the soundings, in fact, this excess water is discharged as it is. small droplets which "escape through the holes 3 laughing while the vapor produced in
<EMI ID = 29.1>
the tube at high speed.
CLAIMS
<EMI ID = 30.1>
its upper end, thanks to which a first phase of cooling the gas is carried out by heat exchange through the wall of the device and a second cooling phase, by mixing the gas with the water and the vapor which escape the part top of the device.
<EMI ID = 31.1>
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE6045596A BE844021A (en) | 1976-07-09 | 1976-07-09 | METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE844021 | 1976-07-09 | ||
| BE6045596A BE844021A (en) | 1976-07-09 | 1976-07-09 | METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE844021A true BE844021A (en) | 1976-11-03 |
Family
ID=25657958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE6045596A BE844021A (en) | 1976-07-09 | 1976-07-09 | METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITS |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE844021A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2491945A1 (en) * | 1980-10-13 | 1982-04-16 | Ledent Pierre | PROCESS FOR PRODUCING HIGH HYDROGEN GAS BY COAL UNDERGROUND GASIFICATION |
-
1976
- 1976-07-09 BE BE6045596A patent/BE844021A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2491945A1 (en) * | 1980-10-13 | 1982-04-16 | Ledent Pierre | PROCESS FOR PRODUCING HIGH HYDROGEN GAS BY COAL UNDERGROUND GASIFICATION |
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