CN103590805A - Broaching method of coal seam channel - Google Patents
Broaching method of coal seam channel Download PDFInfo
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- CN103590805A CN103590805A CN201310594039.6A CN201310594039A CN103590805A CN 103590805 A CN103590805 A CN 103590805A CN 201310594039 A CN201310594039 A CN 201310594039A CN 103590805 A CN103590805 A CN 103590805A
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Abstract
The invention aims to provide a broaching method of a coal seam channel. The coal seam channel can be rapidly broached in the broaching method. The broaching method comprises the steps that a, high-energy inflammable material is laid in the coal seam channel; b, combustion improver is injected into the coal seam channel and the high-energy inflammable material is ignited; c, the combustion improver continues to be injected. Due to the facts that the high-energy inflammable material is laid in the coal seam channel and the combustion improver continues to be injected, part of aflame high-energy inflammable material rapidly ignites another part of the high-energy inflammable material adjacent to the part of aflame high-energy inflammable material along the laying route of the high-energy inflammable material in the coal seam channel, simultaneous combustion of the high-energy inflammable material laid in the coal seam channel can be formed, and therefore temperature of the area, where the high-energy inflammable material is laid, in the coal seam channel is rapidly and evenly increased, coal seams in the area are ignited simultaneously, simultaneous combustion of the coal seams in the area is achieved, and broaching speed of the coal seam channel is increased. In addition, the phenomena that combustion of the coal seam channel deviates from the established coal seam channel, and hole diameters of the coal seam channel are different after broaching can be avoided.
Description
Technical field
The present invention relates to mineral gasification field, relate in particular to the expanding method of a kind of coal seam passage.
Background technology
Underground coal gasification(UCG) is normally set up at least one inlet channel and at least one outlet passageway by lead to subterranean coal from ground, in coal seam, set up again gasification tunnel and be communicated with above-mentioned inlet channel and outlet passageway, then by inlet channel to injected gas agent (oxygen-containing gas) in gasification tunnel, light coal seam, start gasification, from outlet passageway, discharge the coal gas that gasification is produced.
Conventionally the diameter that carries out the passage (be called for short coal seam passage) in the coal seam of underground coal gasification(UCG) is not very large (<300mm), in order or to form larger gasification face by a large amount of gas when gasifying, generally can carry out reaming to coal seam passage before gasification, means have: adopt that borehole-enlarging drilling tool reaming, firepower burning reaming, chemical liquids are molten soaks reaming etc.The way of burning reaming is: the two ends of gasification tunnel are communicated with towards the inlet channel on ground and outlet passageway, from inlet channel injected gas agent, from outlet passageway, light coal seam, the injection flow of grasping gasifying agent makes burning progressively to inlet channel, move from outlet passageway, burn the part coal on gasification tunnel wall simultaneously, make gasification tunnel diameter become large.
CN201110388215.1 discloses a kind of passage formation method for underground coal gasification, comprises the steps: a) in the underseam of the first boring, to set up flame range; B) boring other the already present borings in flame range outside or center being got out is as the second boring, by this second lower end of holing, mechanical orientation is carried out near coal seam flame range to creep into, thereby near coal seam is connected in advance, in coal seam, form with flame range and set up the directed access being communicated with; C) by oxygen-containing gas through having the second boring and directed access to be delivered to flame range, directed access is carried out to hot-working, thereby directed access is expanded to the gasification tunnel be formed for underground coal gasification(UCG).
CN200810119354.2 discloses a kind of no-shaft underground gasification process, wherein discloses a kind of firepower expanding method of reverse combustion, specific as follows: because Directional Drilling can not be beaten large diameter hole, therefore the boring of accomplishing fluently need to be carried out to firepower expansion.As shown below, from openings to 6# well is a directional drilling that connects vertical hole 1#, 2# along the line, 3#, 4#, 5#, by 4# hole injected gas agent, in 5# bottomhole ignition, by the mode of reverse burning, boring is expanded by firepower method, when flame reaches 4# hole, adopt 3# hole injected gas agent, by firepower reaming at the bottom of 3# hole, according to this kind of method, the directional drilling that runs through 1#～5# hole is carried out to firepower expansion.
Although the method in CN201110388215.1 and CN200810119354.2 can expand the aperture of gasification tunnel, because gasification tunnel is long and coal combustion speed is slow, so burn by said method, to expand the aperture speed of gasification tunnel too slow.In addition, there is larger crack or thicker dirt band layer in coal seam, and burning may depart from set gasification tunnel, also may cause the pore size after gasification tunnel expansion uneven.Particularly, more region, longitudinal crack in coal seam, the burning in coal seam is along its longitudinal crack longitudinal extension burning, make the aperture of this region gasification tunnel more, on the contrary, in less region, longitudinal crack, the longitudinal burning degree in coal seam is little, make the aperture of this region gasification tunnel less, cause thus the pore size after gasification tunnel expansion uneven.And be present in coal seam and be with gasification tunnel the crack that angle is extended, can guide the burning in the coal seam of gasification tunnel wall to move along the bearing of trend in crack, thereby cause burning direction to depart from gasification tunnel.
Summary of the invention
The object of the present invention is to provide and a kind ofly can to coal seam passage, carry out fast the expanding method of the coal seam passage of reaming.
For achieving the above object, provide the expanding method of a kind of coal seam passage, comprise the steps: that a. lays high energy combustibles in the passage of coal seam; B. to coal seam passage, inject combustion adjuvant and light high energy combustibles; C. continue to inject combustion adjuvant.
According to the present invention, high energy combustibles be calorific value or calorific value more than 29.5MJ/kg and burning-point or flash-point at the fuel below 300 ℃.
According to the present invention, in step a: need to lay in the part of hole diameter enlargement high energy combustibles along coal seam passage at it continuous uniform.
According to the present invention, in step a, carry out following sub-step: a1. high energy combustibles are packed in housing until fill; A2. housing is positioned in the passage of coal seam; Wherein, on housing, be provided with through hole.
According to the present invention, the laying volume of high energy combustibles is the 1/3-2/3 of volume that needs the part of hole diameter enlargement in the passage of coal seam.
According to the present invention, before execution step a1: high energy combustibles are made into graininess, and wherein the minimum dimension of the particle of high energy combustibles is greater than the diameter of through hole on housing.
According to the present invention, in step a2, comprise following sub-step: the one end that housing is connected in to conveying member; By transferring conveying member, housing is sent in the passage of coal seam; Separated conveying member and housing; Take out conveying member.
According to the present invention, the percent opening of housing is 10%-60%.
According to the present invention, in step a, also comprise the steps: on high energy combustibles laying surface, to place fuse along the parallel direction of the axis with coal seam passage; Or along the parallel direction of the axis with coal seam passage, place fuse in the process of laying high energy combustibles.
According to the present invention, in step b: inject combustion adjuvant by one end of coal seam passage, and high energy combustibles are lighted in one end farthest, one end that distance is injected combustion adjuvant high energy combustibles laying.
According to the present invention, in step c: the volume content that detects oxygen in the gas of being discharged by coal seam passage; When the volume content of oxygen is less than or equal to 0.3%, increase the injection rate of combustion adjuvant, until the volume content of oxygen is greater than 0.3%.
According to the present invention, combustion adjuvant is one or more in air, oxygen-enriched air, oxygen, oxygen and steam, carbon dioxide and pure oxygen.
According to the present invention, high energy combustibles are one or more in solid alcohol piece, oil immersion wooden unit, solid rocket propellant, coke.
Than prior art, beneficial effect of the present invention is:
1. light the high energy combustibles of laying in the passage of coal seam and continue to inject combustion adjuvant, the spent part high energy combustibles part high energy combustibles that the layout path quick igniting in the passage of coal seam is adjacent along it, the high energy combustibles that formation is laid in the passage of coal seam burn simultaneously, the temperature that is equipped with thus the region of high energy combustibles in the passage of coal seam improves rapidly equably, with the coal seam in this region of igniting simultaneously, thus burning when realizing in this region coal seam.Compared with prior art, the method, by needing the coal seam in reaming region in while burning coal layer passage, has been accelerated the reaming speed of coal seam passage.In addition, the coal seam of the above-mentioned zone that simultaneously burns, can not spread along the crack in coal seam burning, has avoided thus coal combustion to depart from the uneven phenomenon in aperture of coal seam passage after set coal seam passage and reaming.
2. along coal seam passage, at it, need to lay high energy combustibles in the part of hole diameter enlargement, the burning that can guarantee high energy combustibles is expanded and smooth and easyly with express delivery, is burnt simultaneously continuous uniform; By laying equably high energy combustibles, in can guaranteeing, in the passage of coal seam, need the temperature of the part coal seam passage of hole diameter enlargement evenly to improve, to guarantee that the coal seam of this part coal seam passage burns simultaneously; In addition, the 1/3-2/3 of the volume that the laying volume of high energy combustibles is channel section, guarantees that the burning heat release of high energy combustibles can cause the burning in coal seam.
3. due to the injection direction of the combustion adjuvant burning bearing of trend in contrast to high energy combustibles, the burning of the bootable high energy combustibles of combustion adjuvant is to its injection direction expansion, thereby avoid high energy combustibles only at partial combustion on the one hand, accelerated on the other hand the burning of high energy combustibles and expanded speed.In addition, on inside or the surface of high energy combustibles, add fuse, can further accelerate the expansion of flame in the laying of high energy combustibles, thereby burn in assurance coal seam simultaneously.
4. by using housing as the carrier of high energy combustibles, can simple and fast high energy combustibles be laid in the passage of coal seam, and because high energy combustibles are full of housing, so can further guarantee that high energy combustibles are evenly to lay continuously in the passage of coal seam, the burning that can guarantee thus high energy combustibles is expanded and smooth and easyly with express delivery, to be burnt simultaneously, thereby guarantees that coal seam burns simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the expanding method of application coal seam of the present invention passage.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described.
With reference to Fig. 1, by 6 coal seam passages 3 of setting up vertical first passage 1 and second channel 2 and first passage 1 and second channel 2 being communicated with to coal seam on the ground.Carry out afterwards following steps: a. and in coal seam passage 3, lay high energy combustibles; B. to coal seam passage 3, inject combustion adjuvant and light high energy combustibles; C. continue to inject combustion adjuvant.Wherein, coal seam passage 3 is for being arranged in the passage in coal seam 6, in actual coal underground gasifying furnace, coal seam passage 3 can comprise the passage that is arranged in channel section, gasification tunnel and other purposes in coal seam 6 on the channel section that is arranged in coal seam 6 on inlet channel, outlet passageway.Wherein, preferably, expanding method of the present invention can be used for before Coal Gasification gasification tunnel reaming.Alternatively, combustion adjuvant is one or more in air, oxygen-enriched air, oxygen, oxygen and steam, carbon dioxide and pure oxygen; High energy combustibles be calorific value or calorific value more than 29.5MJ/kg, burning-point or flash-point be at the fuel below 300 ℃, alternatively, high energy combustibles are solid alcohol piece, oil immersion wooden unit, solid rocket propellant, coke etc., wherein, the type of solid rocket propellant comprises polyurethane, end hydroxy butadiene, nitrate plasticising polyethers etc., but be not limited to above several, as long as meet above-mentioned to the definition of high energy combustibles and can play and make the burn material of effect of reaming of coal seam simultaneously.
Particularly, in step a, along coal seam passage 3, at it, need to lay high energy combustibles in the part of hole diameter enlargement continuous uniform, form high energy combustibles laying.Then perform step b, to coal seam passage 3, inject combustion adjuvant and light high energy combustibles.Thus, the part high energy combustibles in high energy combustibles laying are ignited.Then perform step c, continue to inject combustion adjuvant.The spent part of high energy combustibles laying part high energy combustibles that the layout path quick igniting in coal seam passage 3 is adjacent along it thus, form whole high energy combustibles laying and burn simultaneously, so make to be equipped with in coal seam passage 3 temperature in the region (being to need the part of hole diameter enlargement in coal seam passage 3) of high energy combustibles to improve equably rapidly.Continue injecting the process of combustion adjuvant, is ignited in the coal seam in above-mentioned zone simultaneously, thereby burns when realizing this region in coal seam.Compared with prior art, the method, by needing the coal seam in reaming region in while burning coal layer passage 3, has been accelerated the reaming speed of coal seam passage 3.In addition, the coal seam of the above-mentioned zone that simultaneously burns, can not spread along the crack in coal seam burning, has avoided thus coal combustion to depart from the uneven phenomenon in aperture of coal seam passage 3 after set coal seam passage 3 and reaming.In addition, along coal seam passage, at it, need to lay high energy combustibles in the part of hole diameter enlargement continuous uniform, can guarantee that the burning of high energy combustibles is expanded smooth and easy with burning simultaneously fast; By laying equably high energy combustibles, in can guaranteeing, in the passage of coal seam, need the temperature of the part coal seam passage of hole diameter enlargement evenly to improve, to guarantee that the coal seam of this part coal seam passage burns simultaneously.
Preferably, in step c: the volume content that detects oxygen in the gas of being discharged by coal seam passage 3; When the volume content of oxygen is less than or equal to 0.3%, increase the injection rate of combustion adjuvant, increase the injection flow of combustion adjuvant, until the volume content of oxygen is greater than 0.3%.By the step of above-mentioned detection and adjusting, can guarantee that the combustion adjuvant in coal seam passage 3 is excessive, oxygen is excessive, thereby carries out smoothly for the burning of high energy combustibles and the burning in coal seam, and prevent that, before coal seam passage 3 is burned to suitable diameter, the burning in coal seam can not extinguished.
Preferably, combustion adjuvant is injected in one end by coal seam passage 3, and high energy combustibles are lighted in one end farthest, one end that distance is injected combustion adjuvant high energy combustibles laying, , make flow direction and the high energy combustibles laying of combustion adjuvant expand opposite direction along the axial burning of coal seam passage, by combustion adjuvant, guide burning high energy combustibles laying to the other end, to be expanded rapidly by the one end on it thus, thereby make rapidly high energy combustibles laying integral body burn simultaneously, with the region, coal seam that further guarantees high energy combustibles laying place (, the part coal seam passage that in the passage of coal seam, diameter need expand) burning simultaneously.Particularly, prevent that high energy combustibles laying is excessively slow to the burning velocity of the other end by its one end, and make to need the temperature increase of coal seam channel part of enlarged inhomogeneous, thereby cause the burning simultaneously of coal seam of this part.In addition, alternatively, the laying volume of high energy combustibles is the 1/3-2/3 of volume that needs the part of hole diameter enlargement in the passage of coal seam, and the laying volume of high energy combustibles is the 1/3-2/3 of volume that needs the channel section of reaming in the passage of coal seam.Can guarantee thus the heat release of high energy combustibles burnings can be by the temperature increase in this channel section the burning-point to coal, thereby ignite coal seam.
With further reference to Fig. 1, in the present embodiment, by placing housing 4, high energy combustibles are laid in the passage of coal seam, wherein, housing 4 is round tube in the present embodiment, and is provided with through hole above, to make to be contained in high energy combustibles contact combustion adjuvant wherein by through hole.And preferably, the percent opening of housing 4 is 10%-60%.The sectional area sum that is all through holes on housing 4 is the 10%-60% of housing 4 surface areas.And, high energy combustibles are made into graininess, wherein the minimum dimension of the particle of high energy combustibles is greater than the diameter of through hole on housing 4, so that the particle of high energy combustibles can not drop out in course of conveying in housing 4.By using housing 4 as the carrier of high energy combustibles, can simple and fast high energy combustibles be laid in the passage of coal seam, and because high energy combustibles are full of housing 4, so can further guarantee that high energy combustibles are evenly to lay continuously in the passage of coal seam, the burning that can guarantee thus high energy combustibles is expanded and smooth and easyly with express delivery, to be burnt simultaneously, thereby guarantees that coal seam burns simultaneously.
Further, in the present embodiment, according to the volume and the length that need the part of reaming in the passage of coal seam, select applicable round tube as housing 4,, make the area perpendicular to its axial cross section of round tube equal to need on the passage of coal seam reaming place cross section area 1/3～2/3, and the length of round tube equals to need in the passage of coal seam the length of the part of reaming.The laying volume that can realize thus high energy combustibles is the 1/3-2/3 of volume that needs the part of hole diameter enlargement in the passage of coal seam.
Afterwards high energy combustibles are made to the sub-circular particle that equivalent diameter is 3～5cm.And further select through-hole diameter to be less than the round tube of the equivalent diameter of 70% above-mentioned particle, to prevent that high energy combustibles particle from dropping out in round tube.In addition, can understand, one end of this round tube should seal, to prevent that high energy combustibles particle from being dropped out by round tube.
Then one end relative with one end of above-mentioned sealing on round tube is connected with conveying member 5 by screw thread or pin, in the present embodiment, conveying member 5 is drilling rod.After housing 4 and conveying member 5 connect, by ground derrick, whole housing 4 is sent in the passage of coal seam, by rotation screw thread or solution pin, make housing 4 depart from conveying members 5, so far realized the continuous uniform of high energy combustibles in the passage of coal seam and laid.
Afterwards, from housing 4 near one end of second channel 2 high energy combustibles that ignite, by first passage 1, inject combustion adjuvant (being oxygen-containing gas), now, part particle near second channel 2 in high energy combustibles takes fire, under the continuous injection of combustion adjuvant, burning is towards the contrary Directional Extension of the flow direction with combustion adjuvant.In this process, gather the gas that second channel 2 is discharged, and detect the volume content of the oxygen in this gas, when the volume content of oxygen is greater than 0.3%, increase the flow of the combustion adjuvant being injected by first passage 1, until the volume content of oxygen is greater than 0.3%.In this process, rapidly expansion is until whole housing 4 is ignited in the burning of high energy combustibles, and now, high energy combustibles can contact more combustion adjuvant, burning more fierce.Along with the rib of the burning heat release coal seam passage 3 of high energy combustibles is heated, when temperature reaches after its burning-point, rib is ignited, the rib of whole coal seam passage 3 burns simultaneously, along with a large amount of coal is burned, the equivalent diameter of coal seam passage 3 is increasing, until reach re-set target diameter.
At one, alternatively in embodiment, housing 4 is glass fiber reinforced plastic round tube, and its percent opening is 40%, and opening diameter is 2cm, and its one end sealing, and a bit of caliber of the other end becomes large, by screw thread, is connected with drilling rod.
Alternatively, along the parallel direction of the axis with coal seam passage 3, on high energy combustibles laying surface, place fuse or along the parallel direction of the axis with coal seam passage, place fuse in the process of laying high energy combustibles.By fuse, can further guide the burning of high energy combustibles laying to expand, thereby further guarantee high energy combustibles integral combustion before coal seam is lighted, to guarantee that coal seam burns simultaneously.
Certainly, the drilling rod that conveying member 5 is not limited to use in above-described embodiment, any other can be connected with housing 4 and can in the passage of coal seam, realize the device disconnecting with housing 4 all can.And conveying member 5 is not limited to above-described embodiment with the connected mode of housing 1, can in the passage of coal seam, realizes the connected mode disconnecting with housing 4 and all can.And the material of housing 1 is also not limited to the glass fiber reinforced plastic in the present embodiment, all can and have toughness prior to coal combustion and can make housing 1 material by knee in the passage of coal seam all in protection scope of the present invention.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. an expanding method for coal seam passage, comprises the steps:
A. in the passage of coal seam, lay high energy combustibles;
B. to described coal seam passage, inject combustion adjuvant and light described high energy combustibles;
C. continue to inject combustion adjuvant.
2. expanding method according to claim 1, is characterized in that,
Described high energy combustibles be calorific value or calorific value more than 29.5MJ/kg and burning-point or flash-point at the fuel below 300 ℃.
3. the expanding method of coal seam according to claim 1 passage, is characterized in that,
In described step a:
Along described coal seam passage, at it, need to lay in the part of hole diameter enlargement high energy combustibles continuous uniform.
4. the expanding method of coal seam according to claim 3 passage, is characterized in that,
In described step a, carry out following sub-step:
A1. high energy combustibles are packed in housing until fill;
A2. housing is positioned in the passage of coal seam;
Wherein, on described housing, be provided with through hole.
5. according to the underground coal gasification(UCG) expanding method described in claim 3 or 4, it is characterized in that,
The laying volume of described high energy combustibles is the 1/3-2/3 of volume that needs the part of hole diameter enlargement in the passage of described coal seam.
6. the expanding method of coal seam according to claim 4 passage, is characterized in that,
Before carrying out described step a1:
Described high energy combustibles are made into graininess, and the minimum dimension of the particle of wherein said high energy combustibles is greater than the diameter of through hole on described housing.
7. the expanding method of coal seam according to claim 4 passage, is characterized in that,
In described step a2, comprise following sub-step:
Described housing is connected in to one end of conveying member;
By transferring conveying member, described housing is sent in the passage of coal seam;
Separated described conveying member and described housing;
Take out described conveying member.
8. according to the expanding method of the coal seam passage described in any one in claim 4,6 or 7, it is characterized in that,
The percent opening of described housing is 10%-60%.
9. according to the expanding method of the coal seam passage described in any one in claim 1 to 4, it is characterized in that,
In described step a, also comprise the steps:
Along the direction that the axis with coal seam passage is parallel, on high energy combustibles laying surface, place fuse; Or
In the process of laying described high energy combustibles, along the parallel direction of the axis with coal seam passage, place fuse.
10. according to the expanding method of the coal seam passage described in any one in claim 1 to 4, it is characterized in that,
In described step b:
By one end of coal seam passage, inject combustion adjuvant, and described high energy combustibles are lighted in one end farthest, one end that distance is injected combustion adjuvant high energy combustibles laying.
11. according to the expanding method of the coal seam passage described in any one in claim 1 to 4, it is characterized in that,
In described step c:
The volume content of oxygen in the gas that detection is discharged by coal seam passage;
When the volume content of described oxygen is less than or equal to 0.3%, increase the injection rate of combustion adjuvant, until the volume content of described oxygen is greater than 0.3%.
12. according to the expanding method of the coal seam passage described in any one in claim 1 to 4, it is characterized in that,
Described combustion adjuvant is one or more in air, oxygen-enriched air, oxygen, oxygen and steam, carbon dioxide and pure oxygen.
13. according to the expanding method of the coal seam passage described in any one in claim 1 to 4, it is characterized in that,
Described high energy combustibles are one or more in solid alcohol piece, oil immersion wooden unit, solid rocket propellant, coke.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953320A (en) * | 2014-05-12 | 2014-07-30 | 新奥气化采煤有限公司 | Underground gasifier water controlling method |
| CN104695933A (en) * | 2015-02-13 | 2015-06-10 | 新奥气化采煤有限公司 | Gasification method and gasification furnace of coal seams based on branch wells |
| CN104989365A (en) * | 2015-07-22 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Coal underground gasification temperature control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092052A (en) * | 1977-04-18 | 1978-05-30 | In Situ Technology, Inc. | Converting underground coal fires into commercial products |
| CN1854459A (en) * | 2005-04-21 | 2006-11-01 | 余力 | Underground coal gasification |
| CN101382065A (en) * | 2008-09-04 | 2009-03-11 | 乌兰察布新奥气化采煤技术有限公司 | No-shaft underground gasification process |
| CN102477857A (en) * | 2010-11-30 | 2012-05-30 | 新奥气化采煤有限公司 | Passage formation method for underground coal gasification |
| AU2012101716A4 (en) * | 2011-12-23 | 2013-01-10 | Linc Energy Ltd | Underground coal gasification in thick coal seams |
-
2013
- 2013-11-22 CN CN201310594039.6A patent/CN103590805B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092052A (en) * | 1977-04-18 | 1978-05-30 | In Situ Technology, Inc. | Converting underground coal fires into commercial products |
| CN1854459A (en) * | 2005-04-21 | 2006-11-01 | 余力 | Underground coal gasification |
| CN101382065A (en) * | 2008-09-04 | 2009-03-11 | 乌兰察布新奥气化采煤技术有限公司 | No-shaft underground gasification process |
| CN102477857A (en) * | 2010-11-30 | 2012-05-30 | 新奥气化采煤有限公司 | Passage formation method for underground coal gasification |
| AU2012101716A4 (en) * | 2011-12-23 | 2013-01-10 | Linc Energy Ltd | Underground coal gasification in thick coal seams |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953320A (en) * | 2014-05-12 | 2014-07-30 | 新奥气化采煤有限公司 | Underground gasifier water controlling method |
| CN104695933A (en) * | 2015-02-13 | 2015-06-10 | 新奥气化采煤有限公司 | Gasification method and gasification furnace of coal seams based on branch wells |
| CN104695933B (en) * | 2015-02-13 | 2017-11-03 | 新奥科技发展有限公司 | A kind of coal seam gasification method and coal seam gasification stove based on Multilateral Wells |
| CN104989365A (en) * | 2015-07-22 | 2015-10-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Coal underground gasification temperature control system |
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| CN103590805B (en) | 2017-05-03 |
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