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 DEPOSITS

Info

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
Application number
BE6045596A
Other languages
French (fr)
Inventor
P Ledent
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to BE6045596A priority Critical patent/BE844021A/en
Publication of BE844021A publication Critical patent/BE844021A/en

Links

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)

vant revendication 1, caractérisé en ce que le dispositif de refroidissement est constitué par un réservoir <EMI ID=32.1> vant claim 1, characterized in that the cooling device consists of a reservoir <EMI ID = 32.1> terminé à ses extrémités par deux fonda bombé*, le fond supérieur. percé d'une série de trous disposés en couronne, étant traversé en son centre par un tube de plus petit diamètre destiné à l'adduction d'eau et qui se prolonge à l'intérieur du réservoir pour déboucher à faible distance du fond inférieur* terminated at its ends by two domed fonda *, the upper bottom. pierced with a series of holes arranged in a crown, being crossed in its center by a tube of smaller diameter intended for the water supply and which extends inside the tank to emerge at a short distance from the lower bottom * 3* Appareillage suivant revendication 2, caractérisé 3 * Apparatus according to claim 2, characterized <EMI ID=33.1> <EMI ID = 33.1> de suspension dit dispositif de refroidissement qui pend suspension said cooling device which hangs <EMI ID=34.1> <EMI ID=35.1> <EMI ID = 34.1> <EMI ID = 35.1> <EMI ID=36.1> <EMI ID = 36.1> par assemblage d'éléments de tubes d'acier raccordés entre eux par des joints filetés chacun de ces éléments by assembling elements of steel tubes interconnected by threaded joints each of these elements <EMI ID=37.1> <EMI ID = 37.1> ductibilité thermique thermal ductibility <EMI ID=38.1> <EMI ID = 38.1> térisé en ce que le tube d'adduction d'eau est un tube terized in that the water supply tube is a tube <EMI ID=39.1> <EMI ID = 39.1> 6. Appareillage pour le refroidissement des gaz de gazéification souterraine de combustibles solides tel que décrit ci-dessus et représenté au dessin annexé. 6. Apparatus for cooling gas from underground gasification of solid fuels as described above and shown in the accompanying drawing.
BE6045596A 1976-07-09 1976-07-09 METHOD AND APPARATUS FOR COOLING GAS FOR UNDERGROUND CARBONIFICATION OF SOLID FUEL DEPOSITS BE844021A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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