CN108843377A - A kind of coal seam high pressure hydrothermal solution resistanceization method - Google Patents
A kind of coal seam high pressure hydrothermal solution resistanceization method Download PDFInfo
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- CN108843377A CN108843377A CN201810505188.3A CN201810505188A CN108843377A CN 108843377 A CN108843377 A CN 108843377A CN 201810505188 A CN201810505188 A CN 201810505188A CN 108843377 A CN108843377 A CN 108843377A
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- steel pipe
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- retardant
- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000243 solution Substances 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000005553 drilling Methods 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 230000002269 spontaneous effect Effects 0.000 abstract description 8
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000011002 quantification Methods 0.000 description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/04—Safety devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/06—Fluids used for spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of coal seam high pressure hydrothermal solution resistanceization methods, belong to preventing and extinguishing fire of coal mine technical field.It plays concordant drilling in coal seam first, certain density high temperature retardant solution is prepared using high temperature slot, it will be in the concordant drilling in retardant solution high pressure injection coal seam using high-pressure pump, after retardant solution is sufficiently reacted with coal, by concordant drill in retardant solution extraction be discharged into high temperature slot, then to concordant drilling in circulation water filling with draw water, by concordant drill in heat discharge.By the high pressure pressure injection high temperature retardant solution into coal bed drilling, active group of the retardant in high temperature and high pressure environment with coal surface is reacted.The present invention can significantly reduce the quantity of the active group on coal surface, further increase the resistance efficiency of retardant, effectively prevent the generation of coal spontaneous combustion disaster, have wide applicability in the art.
Description
Technical field
The invention belongs to preventing and extinguishing fire of coal mine technical fields, are specifically related to a kind of resistance of the high pressure pressure injection high temperature into coal bed drilling
Method of the agent solution to prevent spontaneous combustion of coal seam.
Background technique
Coal spontaneous combustion is one of the major natural disasters that coal mine faces.Coal spontaneous combustion can not only generate toxic and harmful gas, can also
Cause gas explosion, causes huge casualties and economic loss.Retardant fire prevention is conventional one of fire prevention means, chemistry
Retardant can be reacted with the active group in coal, and the quantity of the active group by reducing coal surface reaches prevention coal spontaneous combustion
Effect.
Currently, using retardant prevent coal spontaneous combustion when mainly use room temperature retardant, at a temperature of room temperature, retardant with
The chemical reaction that coal occurs is extremely limited, and the active group on coal surface can not effectively eliminate, and the Inhibition of retardant is simultaneously
It cannot give full play to.It is anti-by improving retardant and coal generation according to Chemical Kinetics and chemical reaction thermodynamic argument
The temperature of environment, is aided with hyperbaric environment where seasonable, can be improved the response intensity of retardant and coal, can strength removal coal surface
Active group, significantly reduce coal from thermal hazard, can effectively prevent the generation of coal spontaneous combustion disaster.
Summary of the invention
In order to solve above-mentioned defect existing in the prior art, the invention proposes a kind of coal seam high pressure hydrothermal solution resistanceization sides
Method, by the high pressure pressure injection high temperature retardant solution into coal bed drilling, enable retardant in high temperature and high pressure environment with
The active group on coal surface reacts, and significantly reduces the quantity of the active group on coal surface, improves the resistance efficiency of retardant.
Its technical solution includes：
A kind of coal seam high pressure hydrothermal solution resistanceization method, which is characterized in that successively include the following steps：
A constructs concordant drilling in coal seam, and insertion hole packer carries out sealing of hole in the described concordant drilling；
Hardware needed for b prepares comprising solution tank, control temperature unit, rabbling mechanism, drawing liquid pump, high-pressure pump and process pipeline,
The control temperature unit and rabbling mechanism is installed in the solution tank, and the control temperature unit is used for in solution tank
Liquid is heated up and maintains constant temperature, and the rabbling mechanism is for being stirred the liquid in solution tank；The technique
Pipeline includes sebific duct, intermediate steel pipe, water supplying pipe, drainpipe, the first steel pipe, the second steel pipe, third steel pipe and the 4th steel pipe, by institute
The intermediate penstock installation stated is connect with the solution tank by sebific duct at the middle part of the hole packer, by the intermediate steel pipe, and
It is sequentially connected high-pressure pump, pressure gauge and flow valve on the sebific duct close to solution tank one end, by the water supplying pipe and the solution
Slot is connected by the first steel pipe, the drainpipe, the drawing liquid pump and the intermediate steel pipe is connected by third steel pipe, by institute
It states water supplying pipe and is connect with the high-pressure pump by the second steel pipe, the drawing liquid pump and the solution tank are passed through into the 4th steel pipe connecting
It connects；
Retardant of the c into coal seam after injection heating,
A certain amount of water is injected into solution tank by the water supplying pipe, and a certain amount of resistanceization is added into the solution tank
Control temperature unit and rabbling mechanism are opened in agent, after the fluid temperature in solution tank reaches 50 DEG C -80 DEG C, starting high-pressure pump and stream
Measure valve and be perfused retardant solution into the described concordant drilling, continuous pressure injection retardant solution for a period of time after, close temperature control list
Member, rabbling mechanism, high-pressure pump and flow valve；
D drawing liquid, meets step c, opens drawing liquid pump, by concordant drill in retardant solution extract and passes through the 4th steel pipe and arrange
Into solution tank；
E water filling is drawn water, and step d is met, and is infused high pressure water into concordant drilling by water supplying pipe, the second steel pipe, high-pressure pump, is infused
Water extracts the water in concordant drilling by third steel pipe, drawing liquid pump afterwards for a period of time and is discharged into drainpipe；
F by water filling described in step e, draw water circuit sequentially execute 12h stop, complete concordant drilling high pressure hydrothermal solution resistance
Change.
As a preferred solution of the present invention, in step a, the length of the concordant drilling is 80~120m, described
Hole packer length be 8m~10m, the hole packer be resistant to maximum pressure be 12MPa.
As another preferred embodiment of the invention, in step c, starts high-pressure pump and flow valve and drill to the concordant
When in interior perfusion retardant solution, the outlet pressure that high-pressure pump is arranged makes the reading of pressure gauge reach 6MPa.
Further, in step e, into crossheading drilling in the injecting process, the outlet pressure that high-pressure pump is arranged makes pressure
The reading of table reaches 6MPa.
Advantageous effects brought by the present invention are：
Compared with prior art, the present invention passes through high pressure pressure injection high temperature retardant solution, retardant energy in drilling to concordant
Enough active groups in the environment of high pressure-temperature with coal surface react, and can be effectively reduced the active group on coal surface
Quantity further increases the resistance efficiency of retardant, effectively prevents the generation of coal spontaneous combustion disaster, coal seam high pressure proposed by the present invention
Hydrothermal solution resistanceization method has wide applicability and promotional value in the art.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing：
Fig. 1 is a kind of coal seam high pressure hydrothermal solution resistanceization method schematic diagram of the invention.
In figure, the coal seam 1-, the drilling of 2- concordant, 3- hole packer, 4- sebific duct, the centre 5- steel pipe, 6- flow valve, 7- pressure gauge,
8- high-pressure pump, 9- solution tank, 10- control temperature unit, 11- rabbling mechanism, the first steel pipe of 12-, 13- water supplying pipe, the second steel pipe of 14-,
15- third steel pipe, 16- drawing liquid pump, 17- drainpipe, the 4th steel pipe of 18-.
Specific embodiment
The invention discloses a kind of coal seam high pressure hydrothermal solution resistanceization methods, in order to make advantages of the present invention, technical solution more
It is clear, clear, it elaborates combined with specific embodiments below to the present invention.
As shown in Figure 1, a kind of coal seam high pressure hydrothermal solution resistanceization method of the invention, includes the following steps：
A, concordant of constructing in coal seam 1 drilling 2, insertion hole packer 3 completes the sealing of hole of concordant drilling 2 in concordant drilling 2,
The length of concordant drilling 2 is 80-120m, and the length of hole packer 3 is 8m-10m, and the maximum pressure that is resistant to of hole packer 3 is 12MPa；
B, intermediate steel pipe 5, flow valve 6, pressure gauge 7, the high-pressure pump 8, solution tank of hole packer 3 are sequentially connected using sebific duct 4
9, sebific duct 4 is high pressure resistant high temperature sebific duct, there is control temperature unit 10 and rabbling mechanism 11 in solution tank 9, and control temperature unit 10 can incite somebody to action
Liquid in solution tank 9 is rapidly heated to specified temperature and maintains constant temperature, and rabbling mechanism 11 can at the uniform velocity be turned with constant rate of speed
It is dynamic；
C, it using the first steel pipe 12 connection underground water supplying pipe 13 and solution tank 9, is supplied water using the second steel pipe 14 connection underground
Pipe 13 and high-pressure pump 8 are sequentially connected the intermediate steel pipe 5, drawing liquid pump 16 and drainage underground pipe of hole packer 3 using third steel pipe 15
17, using the 4th steel pipe 18 connection drawing liquid pump 16 and solution tank 9；
D, it is filled the water by underground water supplying pipe 13 and the first steel pipe 12 to 9 quantification of solution tank, is added to 9 quantification of solution tank
Retardant starts the control temperature unit 10 and rabbling mechanism 11 of solution tank 9；
E, after the retardant solution in solution tank 9 reaches 50 DEG C -80 DEG C, starting high-pressure pump 8 and flow valve 6 are to described
High temperature retardant solution is perfused in concordant drilling 2, and the outlet pressure that high-pressure pump 8 is arranged reaches the reading of pressure gauge 7
6MPa；
F, after pressure injection high temperature retardant solution 20 hours, the control temperature unit 10 closed in solution tank 9 and solution tank with stir
Mechanism 11 is mixed, extracted out the retardant solution in concordant drilling 2 by drawing liquid pump 16 and is discharged to solution by the 4th steel pipe 18
In slot 9, then by underground water supplying pipe 13, the second steel pipe 14, the high pressure water injection into concordant drilling 2 of high-pressure pump 8, high-pressure pump is set
8 outlet pressure makes the reading of pressure gauge 7 reach 6MPa, and water injection time passes through third steel pipe 15, drawing liquid pump after reaching 2 hours
16 extract the water in concordants drilling 2 and are discharged into drainage underground pipe 17；
G, water filling described in step f stops after recycling execution 12h with pump process, completes the hot high pressure of concordant drilling 2
Liquid resistanceization.
Embodiment 1：
Coal seam high pressure hydrothermal solution resistanceization method, the specific steps are：
Firstly, the concordant drilling 2 that an aperture is 113mm, length is 120m of constructing in coal seam, is then with length
10m, the hole packer for being resistant to 12MPa carry out sealing of hole to concordant drilling 2.Then, successively connected using the sebific duct of resistance to 120 DEG C and 12MPa
Intermediate steel pipe 5, flow valve 6, pressure gauge 7, high-pressure pump 8, the solution tank 9 for connecing hole packer 3 are supplied using the first steel pipe 12 connection underground
Water pipe 13 and solution tank 9 are successively connected using the second steel pipe 14 connection underground water supplying pipe 13 and high-pressure pump 8 using third steel pipe 15
The intermediate steel pipe 5, drawing liquid pump 16 and drainage underground pipe 17 for connecing hole packer 3 connect drawing liquid pump 16 and solution using the 4th steel pipe 18
Slot 9.
It is filled the water later by underground water supplying pipe 13 and the first steel pipe 12 to 9 quantification of solution tank, simultaneous quantitative adds resistanceization
Agent, in the present embodiment, retardant used is sodium chlorate, is configured to 30% sodium chlorate solution.In the present embodiment, high temperature resistanceization
Agent solution will not generate corrosion to entire high pressure hydrothermal solution resistanceization system.Start the control temperature unit 10 and rabbling mechanism of solution tank 9
11, the solution in solution tank 9 is rapidly heated to 60 DEG C and maintains constant temperature by control temperature unit 10, and rabbling mechanism 11 is with 30 turns per minute
Rate at the uniform velocity stir.After the retardant solution in solution tank 9 reaches 60 DEG C, starting high-pressure pump 8 and flow valve 6 are to described
High temperature retardant solution is perfused in concordant drilling 2, and the outlet pressure that high-pressure pump 8 is arranged reaches the reading of pressure gauge 7
6MPa。
After high temperature retardant infusion, the temperature in drilling can be higher, in order to which the heat extraction in drilling is come out,
After pressure injection high temperature retardant solution 20 hours, the control temperature unit 10 and rabbling mechanism 11 in solution tank 9 and solution tank are closed, is led to
It crosses drawing liquid pump 16 to extract the retardant solution in concordant drilling 2 out and be discharged in solution tank 9 by the 4th steel pipe 18, then lead to
Underground water supplying pipe 13, the second steel pipe 14, the high pressure water injection into concordant drilling 2 of high-pressure pump 8 are crossed, the outlet pressure of high-pressure pump 8 is set
So that the reading of pressure gauge 7 reaches 6MPa, water injection time passes through third steel pipe 15 after reaching 2 hours, drawing liquid pump 16 extracts concordant
Drilling 2 in water and be discharged into drainage underground pipe 17.Water filling stops after recycling execution 12h with pump process, completes concordant
The high pressure hydrothermal solution resistanceization of drilling 2.
It uses for reference the prior art and can be realized in the part that do not addressed in the present invention.
It should be noted that：Any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (4)
1. a kind of coal seam high pressure hydrothermal solution resistanceization method, which is characterized in that successively include the following steps：
A constructs concordant drilling in coal seam, and insertion hole packer carries out sealing of hole in the described concordant drilling；
Hardware needed for b prepares comprising solution tank, control temperature unit, rabbling mechanism, drawing liquid pump, high-pressure pump and process pipeline, it is described
Control temperature unit and rabbling mechanism be installed in the solution tank, the control temperature unit is used for the liquid in solution tank
It is heated up and maintains constant temperature, the rabbling mechanism is for being stirred the liquid in solution tank；The process pipeline
It, will be described including sebific duct, intermediate steel pipe, water supplying pipe, drainpipe, the first steel pipe, the second steel pipe, third steel pipe and the 4th steel pipe
Intermediate penstock installation is connect with the solution tank by sebific duct at the middle part of the hole packer, by the intermediate steel pipe, and is being leaned on
It is sequentially connected high-pressure pump, pressure gauge and flow valve on the sebific duct of nearly solution tank one end, the water supplying pipe and the solution tank are led to
The connection of the first steel pipe is crossed, the drainpipe, the drawing liquid pump and the intermediate steel pipe are connected by third steel pipe, by the confession
Water pipe is connect with the high-pressure pump by the second steel pipe, and the drawing liquid pump is connect with the solution tank by the 4th steel pipe；
Retardant of the c into coal seam after injection heating,
A certain amount of water is injected into solution tank by the water supplying pipe, and a certain amount of retardant is added into the solution tank, opens
Open control temperature unit and rabbling mechanism, after the fluid temperature in solution tank reaches 50 DEG C -80 DEG C, start high-pressure pump and flow valve to
Be perfused retardant solution in the described concordant drilling, continuous pressure injection retardant solution for a period of time after, close control temperature unit, stirring
Mechanism, high-pressure pump and flow valve；
D drawing liquid, meets step c, opens drawing liquid pump, by concordant drill in retardant solution extract out and pass through the 4th steel pipe be discharged to it is molten
In liquid bath；
E water filling is drawn water, and step d is met, and is filled the water by water supplying pipe, the second steel pipe, high-pressure pump into concordant drilling, when filling the water one section
Between after by third steel pipe, drawing liquid pump extract concordant drilling in water and be discharged into drainpipe；
F by water filling described in step e, draw water circuit sequentially execute 12h stop, complete concordant drilling high pressure hydrothermal solution resistanceization.
2. a kind of coal seam high pressure hydrothermal solution resistanceization method according to claim 1, it is characterised in that：In step a, described is suitable
The length of layer drilling is 80~120m, and the length of the hole packer is 8m~10m, and the hole packer is resistant to maximum pressure and is
12MPa。
3. a kind of coal seam high pressure hydrothermal solution resistanceization method according to claim 1, it is characterised in that：In step c, start high pressure
When pump and flow valve are perfused in retardant solution into the concordant drilling, the outlet pressure that high-pressure pump is arranged makes pressure gauge
Reading reach 6MPa.
4. a kind of coal seam high pressure hydrothermal solution resistanceization method according to claim 1, it is characterised in that：In step e, bored to crossheading
In hole in the injecting process, the outlet pressure that high-pressure pump is arranged makes the reading of pressure gauge reach 6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505188.3A CN108843377B (en) | 2018-05-24 | 2018-05-24 | A kind of coal seam high pressure hydrothermal solution resistanceization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505188.3A CN108843377B (en) | 2018-05-24 | 2018-05-24 | A kind of coal seam high pressure hydrothermal solution resistanceization method |
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| Publication Number | Publication Date |
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| CN108843377A true CN108843377A (en) | 2018-11-20 |
| CN108843377B CN108843377B (en) | 2019-10-29 |
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ID=64213385
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819417A (en) * | 2019-11-26 | 2020-02-21 | 辽宁大学 | Method for treating coal-fired atmospheric pollution by coal seam water injection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092879A (en) * | 2007-07-26 | 2007-12-26 | 康怀宇 | Method for injecting retarder to coal body |
| CN202578751U (en) * | 2012-04-06 | 2012-12-05 | 中国矿业大学 | Fire extinguishing and cooling system used in coal empty and loose areas of coal field fire zone |
| CN106121711A (en) * | 2016-06-22 | 2016-11-16 | 陈舸 | A kind of high fire-retardance pliable and tough artesian water glass combined casting material and preparation method |
| CN108005706A (en) * | 2017-10-16 | 2018-05-08 | 山东科技大学 | A kind of gas for preventing spontaneous combustion in goaf helps formula spraying device |
| CN108301862A (en) * | 2018-04-23 | 2018-07-20 | 华北科技学院 | A kind of new method preventing spontaneous combustion of remaining coal to goaf pressure injection retardant |
-
2018
- 2018-05-24 CN CN201810505188.3A patent/CN108843377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092879A (en) * | 2007-07-26 | 2007-12-26 | 康怀宇 | Method for injecting retarder to coal body |
| CN202578751U (en) * | 2012-04-06 | 2012-12-05 | 中国矿业大学 | Fire extinguishing and cooling system used in coal empty and loose areas of coal field fire zone |
| CN106121711A (en) * | 2016-06-22 | 2016-11-16 | 陈舸 | A kind of high fire-retardance pliable and tough artesian water glass combined casting material and preparation method |
| CN108005706A (en) * | 2017-10-16 | 2018-05-08 | 山东科技大学 | A kind of gas for preventing spontaneous combustion in goaf helps formula spraying device |
| CN108301862A (en) * | 2018-04-23 | 2018-07-20 | 华北科技学院 | A kind of new method preventing spontaneous combustion of remaining coal to goaf pressure injection retardant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819417A (en) * | 2019-11-26 | 2020-02-21 | 辽宁大学 | Method for treating coal-fired atmospheric pollution by coal seam water injection |
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| CN108843377B (en) | 2019-10-29 |
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