BE860887A - METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING - Google Patents

METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING

Info

Publication number
BE860887A
BE860887A BE6046231A BE6046231A BE860887A BE 860887 A BE860887 A BE 860887A BE 6046231 A BE6046231 A BE 6046231A BE 6046231 A BE6046231 A BE 6046231A BE 860887 A BE860887 A BE 860887A
Authority
BE
Belgium
Prior art keywords
emi
boring
thermal destruction
tubing section
section inside
Prior art date
Application number
BE6046231A
Other languages
French (fr)
Inventor
P Ledent
Original Assignee
Iniex
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 by Iniex filed Critical Iniex
Priority to BE6046231A priority Critical patent/BE860887A/en
Publication of BE860887A publication Critical patent/BE860887A/en

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
    • E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/02—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical means
    • 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
    • E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners

Description

       

  "Procédé et appareillage pour la destruction thermique

  
 <EMI ID=1.1> 

  
Le coût des sondages et de leurs tubages constitue

  
le poste le plus important du prix de revient du gaz produit

  
par gazéification souterraine des gisements de charbon situés  <EMI ID=2.1> 

  
semble de couchas d'assez faible épaisseur, il est très im-

  
 <EMI ID=3.1> 

  
 <EMI ID=4.1> 

  
 <EMI ID=5.1> 

  
et aussi peu nombreuses que possible. Dès lors, avant de procéder à l'approfondissement d'un sondage,, il pourra s'avérer nécessaire d'éliminer la partie inférieure de l'ancien tubage, si sa section a été déformée par les mouvements de terrains résultant des premières exploitations, ou. encore' d'éliminer une section de tubage de diamètre réduit, qui aurait déjà été mis en place lors d'un des approfondissements précédents.

  
Le procédé conforme à la présente invention a pour  <EMI ID=6.1> 

  
baga et de la convertir en scorie d'oxyde de fer, ne consti-

  
 <EMI ID=7.1> 

  
 <EMI ID=8.1> 

  
 <EMI ID=9.1> 

  
 <EMI ID=10.1> 

  
suffisants pour amorcer sa combustion ; 

  
 <EMI ID=11.1> 

  
 <EMI ID=12.1> 

  
 <EMI ID=13.1> 

  
par une substance chimique se présentant sous forme de grains ou de copeaux, susceptible de brûler en dégageant beaucoup de

  
 <EMI ID=14.1> 

  
principal de la combustion étant une scorie solide, portée à haute température. Cette scorie chaude joue le rôle d'un régénérateur de chaleur, capable de préchauffer le courant  d'oxygène avant qu'il atteigne la paroi du tubage.

  
Le dispositif utilisé pour éviter la propagation de  la combustion dans les sections de tubage qui doivent être  <EMI ID=15.1> 

  
refroidissement qui circula le long de la paroi du tubage et un détecteur de température qui permet de réduire ou d'inter-

  
 <EMI ID=16.1>   <EMI ID=17.1> 

  
A l'intérieur de cette chambre est placée une boite cylindrique élance 8 remplie de phosphore blanc et dont les

  
 <EMI ID=18.1>   <EMI ID=19.1> 

  
rature.

  
 <EMI ID=20.1> 

  
 <EMI ID=21.1> 

  
 <EMI ID=22.1> 

  
des scories d'oxydas de fer et d'aluminium.

  
 <EMI ID=23.1> 

  
rature du mélange gazeux qui remonte entra les tubes 10 et 4

  
 <EMI ID=24.1> 



  "Method and apparatus for thermal destruction

  
 <EMI ID = 1.1>

  
The cost of the boreholes and their casings constitutes

  
the most important item in the cost price of gas produced

  
by underground gasification of coal deposits located <EMI ID = 2.1>

  
seems to be of relatively thin layer, it is very

  
 <EMI ID = 3.1>

  
 <EMI ID = 4.1>

  
 <EMI ID = 5.1>

  
and as few as possible. Therefore, before proceeding to the deepening of a borehole, it may prove necessary to eliminate the lower part of the old casing, if its section has been deformed by the ground movements resulting from the first operations, or. yet 'to eliminate a section of tubing of reduced diameter, which would have already been put in place during one of the previous deepening.

  
The method according to the present invention has for <EMI ID = 6.1>

  
baga and convert it into iron oxide slag, not

  
 <EMI ID = 7.1>

  
 <EMI ID = 8.1>

  
 <EMI ID = 9.1>

  
 <EMI ID = 10.1>

  
sufficient to initiate combustion;

  
 <EMI ID = 11.1>

  
 <EMI ID = 12.1>

  
 <EMI ID = 13.1>

  
by a chemical substance in the form of grains or chips, capable of burning by giving off a lot of

  
 <EMI ID = 14.1>

  
main combustion being a solid slag, brought to high temperature. This hot slag acts as a heat regenerator, capable of preheating the oxygen stream before it reaches the casing wall.

  
The device used to prevent the spread of combustion in the sections of casing which must be <EMI ID = 15.1>

  
cooling which circulated along the casing wall and a temperature sensor which allows to reduce or inter-

  
 <EMI ID = 16.1> <EMI ID = 17.1>

  
Inside this chamber is placed a cylindrical box élance 8 filled with white phosphorus and whose

  
 <EMI ID = 18.1> <EMI ID = 19.1>

  
crossed out.

  
 <EMI ID = 20.1>

  
 <EMI ID = 21.1>

  
 <EMI ID = 22.1>

  
slag of iron and aluminum oxides.

  
 <EMI ID = 23.1>

  
erasure of the gas mixture which rises between tubes 10 and 4

  
 <EMI ID = 24.1>

Claims (1)

REVENDICATIONS <EMI ID=25.1> CLAIMS <EMI ID = 25.1> <EMI ID=26.1> <EMI ID = 26.1> <EMI ID=27.1> <EMI ID = 27.1> <EMI ID=28.1> <EMI ID = 28.1> que l'on se propose de détruira, ce tube étant, sur toute-la hauteur de cette section, constitué d'acier réfractaire en- that it is proposed to destroy, this tube being, over the entire height of this section, made of refractory steel in- <EMI ID=29.1> <EMI ID=30.1> <EMI ID = 29.1> <EMI ID = 30.1> relativement faible épaisse=* relatively thin thick = * 6. Appareillage pour la réalisation du procédé suivant 6. Apparatus for carrying out the following process <EMI ID=31.1> <EMI ID = 31.1> <EMI ID=32.1> <EMI ID = 32.1> d'adduction d'oxygène est installé dans le sondage sur toute la hauteur des sections de tubage qui doivent être conservées, afin de canaliser la circulation du gaz de refroidissement. oxygen supply is installed in the borehole over the entire height of the sections of tubing that must be retained, in order to channel the circulation of the cooling gas. <EMI ID=33.1> <EMI ID = 33.1> la revendication 1, caractérisé en ce que la tampérature du claim 1, characterized in that the temperature of the <EMI ID=34.1> <EMI ID = 34.1>
BE6046231A 1977-11-16 1977-11-16 METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING BE860887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE6046231A BE860887A (en) 1977-11-16 1977-11-16 METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6046231A BE860887A (en) 1977-11-16 1977-11-16 METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING
BE860887 1977-11-16

Publications (1)

Publication Number Publication Date
BE860887A true BE860887A (en) 1978-03-16

Family

ID=25658391

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6046231A BE860887A (en) 1977-11-16 1977-11-16 METHOD AND APPARATUS FOR THERMAL DESTRUCTION OF A TUBING SECTION INSIDE A BORING

Country Status (1)

Country Link
BE (1) BE860887A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237513A (en) * 2018-08-29 2019-01-18 西安石油大学 A kind of depth well use multistage solid fuel igniter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237513A (en) * 2018-08-29 2019-01-18 西安石油大学 A kind of depth well use multistage solid fuel igniter

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