CN102176071A - Coal mine fire hazard exploration method based on superficial layer rock temperature measurement - Google Patents
Coal mine fire hazard exploration method based on superficial layer rock temperature measurement Download PDFInfo
- Publication number
- CN102176071A CN102176071A CN 201110033591 CN201110033591A CN102176071A CN 102176071 A CN102176071 A CN 102176071A CN 201110033591 CN201110033591 CN 201110033591 CN 201110033591 A CN201110033591 A CN 201110033591A CN 102176071 A CN102176071 A CN 102176071A
- Authority
- CN
- China
- Prior art keywords
- coal
- fire
- temperature
- exploration
- depth
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Fire Alarms (AREA)
Abstract
The invention provides a coal mine fire hazard exploration method based on superficial layer rock temperature measurement, and the method provided by the invention comprises the following steps: punching the earth surface of a predetermined region and performing the temperature exploration; and obtaining the underground coal fire depth information through a coal bed self-ignition depth computing model according to the temperature exploration result. Compared with the prior art, the coal mine fire hazard exploration method has the beneficial effects of simple work principle, accurately obtained information, convenience operation and low construction cost.
Description
Technical field
The present invention relates to a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature.
Background technology
" coalfield fire fire extinguishing standard " according to the promulgation in 1992 of environmental protection department of former Ministry of Energy proposed in Huo Qu reconnoitres, and should be main coal fire Detection Techniques means with natural electric field method, magnetic method, infrared measurement of temperature and probing.In recent years, along with technology such as Aero-Space remote sensing technology, thermal infrared imaging technology and isotope survey radon enter in the reconnoitring of coal-mine fire successively, the coal-mine fire exploration technique has had very big progress and raising.New " coalfield fire fire extinguishing standard " is also under national departments concerned is coordinated, in beginning one's study and formulating.
But, the generation of coal-mine fire, development are processes slowly, occur and enter in the combustion process at coal fire, the roof rock is bound to along with the process of coal fire burning delicate variation is taking place, and Here it is, and why we can see the precondition that a large amount of burnt rocks exist on the face of land.
The roof burnt rock is (whole as molten steel from shallow rotten (it is brick-red that fissure-plane is) to kata metamorphism, shape becomes now to blend, rock prototype structure, structure, chemical constitution all change), occur from developing into large tracts of land among a small circle, necessarily experienced the evolution (from fire point develop into combustion centre, again from combustion centre develop into whole fire district) of underground coal fire from rudimentary to senior.This associates a kind of simple, economic coal-mine fire detection method-and method of measuring of shallow-layer rock temperature with regard to let us, utilize under the certain depth condition of the face of land, carrying out fire district or goaf subsurface temperature measures or Continuous Observation, by the height and the variation of rock observed temperature, seek a kind of underground coal fire and survey and the new method of monitoring.
Extinguish the topmost problem of underground coal fire and be to locate the position of coal fire combustion centre, reach the purpose of coal fire prediction by the variation of coal fire combustion centre.But the coal fire exploration technique cost height in past, can not use for a long time, Effect on Detecting can not reflect coal fire integral combustion and state of development, therefore causes increasing substantially of the undesirable or fire extinguishing cost of fire extinguishing effect.
The instrument and equipment that underground coal fire is surveyed is not special-purpose, and simple and crude as detection instrument, drilling equipment is coarse, and the boring protective condition is poor, makes problems such as the Continuous Observation effect is undesirable occur.
Ground geophysical measurement method is many, and observed pattern is flexible; Shortcoming is that certain danger is arranged, and regular side network arrangements difficulty is big.Can on the airborne geophysical prospecting Fundamentals of Measurement, select the rekindling district,, select appropriate method to carry out measurement, obtain spontaneous combustion of coal seam information at fire district burning form, structural attitude and condition of work.
The above-mentioned cost height that exists in the prior art, the complicated and dangerous coal-mine fire exploration problem of process does not propose effective solution at present as yet.
Summary of the invention
The purpose of this invention is to provide a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature, realize that the coal-mine fire principle of work is simple, it is accurate to obtain information, operates simple and easyly, and construction cost is cheap.
To achieve these goals, the present invention is by the following technical solutions:
A kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature, comprise: to the punching of the face of land of presumptive area and carry out the rock temperature exploration of predetermined depth, result according to described temperature exploration by the computation model of the spontaneous combustion of coal seam degree of depth, obtains underground coal fire depth information.
Further, the computation model of described spontaneous combustion of coal seam depth D is: D=H+ (R-T)/Td; Wherein, H is the degree of depth of described punching, the central temperature when R is coal burning, and the result of the described temperature exploration of T, Td is the underground temperature gradient that tends towards stability.
Compared with prior art, described method principle of work is simple, and it is accurate to obtain information, operates simple and easyly, and construction cost is cheap.And not only can draw a circle to approve underground coal fire combustion centre scope by coal fire superincumbent stratum temperature variation, can also predictably descend coal fire to spread the purpose of development trend according to long-term temperature measurement data.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to type of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram according to the described a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature of the embodiment of the invention;
Fig. 2 is the figure of thermometric on the spot according to the described a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature of the embodiment of the invention;
Fig. 3 is according to the described coal combustion figure of the embodiment of the invention;
Fig. 4 is according to the described computation model procedure chart of setting up the spontaneous combustion of coal seam degree of depth of the embodiment of the invention;
Fig. 5 carries out the thermometric result map that the temperature exploration forms according to the embodiment of the invention is described to the presumptive area diverse location.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the process flow diagram of a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature of the present invention, and referring to shown in Figure 1, this method comprises the steps:
Step S101: to the face of land punching in the predetermined area trip temperature exploration of going forward side by side;
Step S103: the result according to described temperature exploration, by the computation model of the spontaneous combustion of coal seam degree of depth, obtain underground coal fire depth information.
As can be seen, the coal-mine fire method of exploration principle of work in the present embodiment is comparatively simple from above-mentioned step, operates simple and easyly, and construction cost is cheap; And help to obtain information comparatively accurately by computation model.
When the burning degree of judging spontaneous combustion of coal and scope, temperature is the most direct and index accurately, and it is little influenced by external factor, as long as determine the temperature and the distribution thereof of somewhere coal, just can analyze the spontaneous combustion degree and the scope of given coal.Hygrometry both can be used for the spontaneous combustion of coal forecast, also can be used for fire source probing.
Utilize instrument to survey heat flux or utilization on the top in spontaneous combustion fire district and be arranged in sensor determination temperature in the thermometric boring, determine the fiery position of distinguishing burning things which may cause a fire disaster of spontaneous combustion with the temperature retrieval method according to the temperature field that measures.Referring to shown in Figure 2, Fig. 2 is the figure of thermometric on the spot according to the described a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature of the embodiment of the invention, wherein, Figure 21 selects predetermined area, and Figure 22 is the surface temperature with the predetermined area of temperature probe boring monitoring.Shallow, the burning things which may cause a fire disaster temperature height of burning things which may cause a fire disaster depth of burial, the fire district of the long period of having burnt are selected in described predetermined area.
The shallow surface temperature information has reflected underground hot situation than the depths.When there was local heat source in the shallow layer surface place, the shallow earth field occurred unusual, can infer the position and the scale of local heat source according to its feature, in order to the scope burning degree of the exploring underground coal fire geological problem relevant with solution.
According to field observation, thermal remote sensing image analysis and drilling verification, the thermal anomaly that spontaneous combustion of coal seam causes on the face of land is by factors such as the thickness decision of the degree of depth of underground spontaneous ignition temperature, thickness of coal seam, upper caldding layer.Referring to shown in Figure 3, for according to the described coal combustion figure of the embodiment of the invention, under the subterranean coal autoignition conditions, the heat that burning produces is upwards overflowed along rock fracture, crack diffusion; Or form the thermal anomaly district on the face of land through the rock stratum conduction of heat.Behind the spontaneous combustion of coal seam, heat spreads to the periphery, heat conducting principal direction vertically upward, intensity dies down gradually along with the increase of coal seam distance, diffusion length and spontaneous combustion coal layer thickness are proportional.According to this principle, can set up the computation model of the spontaneous combustion of coal seam degree of depth, referring to shown in Figure 4, Fig. 4 is according to the described computation model procedure chart of setting up the spontaneous combustion of coal seam degree of depth of the embodiment of the invention, the computation model of the described spontaneous combustion of coal seam degree of depth: D=H+ (R-T)/Td; Wherein, H is the degree of depth of underground temperature gradient when tending towards stability, when just punching thermometric, and the degree of depth in described hole; Central temperature when R is coal burning, R determines according to the speciality of being scheduled to regional coal; T is a temperature in the hole measured of this method punching, and Td is the underground temperature gradient that tends towards stability.
And, referring to shown in Figure 4, the computation model method of Fig. 4 is by selecting the temperature field, heat is carried out in selected temperature field to be surveyed, heat, through simple medium (rock) transmission, being transmitted to the shallow layer surface temperature can survey, be not subjected to the influence of this season solar term time feature, by the description in temperature field, set up fire district's combustion intensity and depth of burial research, set up the relation of underground coal fire thermal source and temperature.Computation model by Fig. 4 can carry out the temperature exploration by a kind of coal-mine fire method of exploration of measuring based on the shallow-layer rock temperature of the present invention to the diverse location of presumptive area, as shown in Figure 5, Fig. 5 carries out the thermometric result map that the temperature exploration forms according to the embodiment of the invention is described to the presumptive area diverse location.
The three-dimensional thermal model and the thermal information extracting method of underground coal fire are proposed based on this principle, research is created on the basis at the three-dimensional thermal model of underground thermal source, coal fire geologic media condition is through stable state nonlinear model--simple steady nonlinear model--simplification of simple steady linear model under the base area, set up thermal source inversion method (some inverting) based on discrete points data, thermal source inversion method (line inversion) based on the Continuous Observation cross-sectional data, based on the thermal source inversion method (body inverting) of Continuous Observation panel data, form and descend the position of burning things which may cause a fire disaster and the quick method of intensity definitely by surface temperature.
According to method of the present invention, utilization is reconnoitred the ventilation oxygen system feature of coal mine gob rock fracture and coal fire burning formation, directly obtained in the coal-mine fire development of combustion process, underground coal fire combustion centre is in the objective performance on the face of land or be direct coal fire combustion information.Use this crack exploration technique at certain fire district's different phase, can directly obtain the coal fire fired state and the coal fire development trend of underground coal fire combustion centre.
And, in the present embodiment coal-mine fire scientific prevention and cure is had great importance, for administering, the fire district provide coal fire to reconnoitre foundation, control of goaf coal fire and early stage assessment or the coal fire prediction information of providing of administering are provided.Compare with the exploration of remote sensing technology coal fire, this prospecting results mathematics precision is higher, and the coal fire information of comparing with the physical prospecting prospecting technique is more direct, more reliable.Compare with drilling technique, cost is obviously cheap.
The innovation of the prospecting technique in the present embodiment is not only administered for coal-mine fire new, reliable, cheap coal-mine fire exploration new technology is provided, and more the control of coal mine gob coal fire provides early stage improvement and coal fire risk assessment and prediction new technology.Also there is not at present both at home and abroad a kind of coal fire prospecting technique more direct, more accurate and the result is more convincing than the coal fire exploration of present technique.If we via satellite, remote sensing technology such as aviation, also can reach similar differentiation purpose, but its cost is higher relatively, technical process is also complicated.Other technical method can't satisfy differentiates needed integrated information to coal fire combustion centre.
Compared with prior art, the beneficial effect of the embodiment of the invention has: principle of work is simple, and it is accurate to obtain information, operates simple and easyly, and construction cost is cheap.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the coal-mine fire method of exploration based on the exploration of shallow-layer rock temperature is characterized in that, comprising:
To the punching of the face of land of presumptive area and carry out the rock temperature exploration of predetermined depth,
Result according to described temperature exploration by the computation model of the spontaneous combustion of coal seam degree of depth, obtains underground coal fire depth information.
2. coal-mine fire method of exploration according to claim 1 is characterized in that,
The computation model of described spontaneous combustion of coal seam depth D is: D=H+ (R-T)/Td;
Wherein, H is the degree of depth of described punching, the central temperature when R is coal burning, and T is a temperature in the hole, Td is the underground temperature gradient that tends towards stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033591 CN102176071A (en) | 2010-12-29 | 2011-01-30 | Coal mine fire hazard exploration method based on superficial layer rock temperature measurement |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010613293.2 | 2010-12-29 | ||
| CN201010613293 | 2010-12-29 | ||
| CN 201110033591 CN102176071A (en) | 2010-12-29 | 2011-01-30 | Coal mine fire hazard exploration method based on superficial layer rock temperature measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102176071A true CN102176071A (en) | 2011-09-07 |
Family
ID=44519273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110033591 Pending CN102176071A (en) | 2010-12-29 | 2011-01-30 | Coal mine fire hazard exploration method based on superficial layer rock temperature measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102176071A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003087A (en) * | 2015-06-08 | 2015-10-28 | 江苏鼎达建筑新技术有限公司 | Ground hollow detection and repair method based on infrared imaging |
| CN109633779A (en) * | 2018-12-18 | 2019-04-16 | 核工业北京地质研究院 | A kind of heat transfer structure recognition methods suitable for geothermal prospecting |
| CN113238290A (en) * | 2021-05-11 | 2021-08-10 | 中煤科工集团西安研究院有限公司 | Coal gangue field internal high-temperature area dual-parameter joint nondestructive detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2406729A1 (en) * | 2000-04-24 | 2001-11-01 | Shell Canada Limited | Electrical well heating system and method |
| CN1764498A (en) * | 2003-01-22 | 2006-04-26 | 瓦斯特能量系统有限公司 | Reactor |
| US20080271885A1 (en) * | 2007-03-22 | 2008-11-06 | Kaminsky Robert D | Granular electrical connections for in situ formation heating |
| WO2008143745A1 (en) * | 2007-05-15 | 2008-11-27 | Exxonmobil Upstream Research Company | Downhole burner wells for in situ conversion of organic-rich rock formations |
| CN101553628A (en) * | 2006-10-13 | 2009-10-07 | 埃克森美孚上游研究公司 | Improved method of developing subsurface freeze zone |
-
2011
- 2011-01-30 CN CN 201110033591 patent/CN102176071A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2406729A1 (en) * | 2000-04-24 | 2001-11-01 | Shell Canada Limited | Electrical well heating system and method |
| CN1764498A (en) * | 2003-01-22 | 2006-04-26 | 瓦斯特能量系统有限公司 | Reactor |
| CN101553628A (en) * | 2006-10-13 | 2009-10-07 | 埃克森美孚上游研究公司 | Improved method of developing subsurface freeze zone |
| US20080271885A1 (en) * | 2007-03-22 | 2008-11-06 | Kaminsky Robert D | Granular electrical connections for in situ formation heating |
| WO2008143745A1 (en) * | 2007-05-15 | 2008-11-27 | Exxonmobil Upstream Research Company | Downhole burner wells for in situ conversion of organic-rich rock formations |
Non-Patent Citations (3)
| Title |
|---|
| 《中国安全科学学报》 20041031 邬剑明，高尚青 煤层自燃火区温度检测技术的研究与应用 第1-4部分 1，2 第14卷, 第10期 * |
| 《太原理工大学学报》 20050731 高尚青,邬剑明等 矿用智能化钻孔测温仪的开发与研制 全文 1，2 第36卷, 第4期 * |
| 《煤矿安全》 20070930 吴玉国,邬剑明灯 矿自燃火区治理温度检测技术及装备的研究应用 全文 1，2 , * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003087A (en) * | 2015-06-08 | 2015-10-28 | 江苏鼎达建筑新技术有限公司 | Ground hollow detection and repair method based on infrared imaging |
| CN105003087B (en) * | 2015-06-08 | 2017-11-07 | 江苏鼎达建筑新技术有限公司 | A kind of floor empty drum based on infrared imaging is detected and restorative procedure |
| CN109633779A (en) * | 2018-12-18 | 2019-04-16 | 核工业北京地质研究院 | A kind of heat transfer structure recognition methods suitable for geothermal prospecting |
| CN113238290A (en) * | 2021-05-11 | 2021-08-10 | 中煤科工集团西安研究院有限公司 | Coal gangue field internal high-temperature area dual-parameter joint nondestructive detection method |
| CN113238290B (en) * | 2021-05-11 | 2023-10-27 | 中煤科工集团西安研究院有限公司 | Double-parameter combined nondestructive detection method for high-temperature area inside gangue field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hovorka et al. | Monitoring a large volume CO2 injection: Year two results from SECARB project at Denbury’s Cranfield, Mississippi, USA | |
| Hickman et al. | Introduction to special section: preparing for the San Andreas Fault Observatory at Depth | |
| Fu et al. | Close observation of hydraulic fracturing at EGS Collab Experiment 1: Fracture trajectory, microseismic interpretations, and the role of natural fractures | |
| Wang et al. | Research and application of the underground fire detection technology based on multi-dimensional data fusion | |
| CN110221341A (en) | A kind of constructing tunnel unfavorable geology advanced prediction method | |
| Stein et al. | Multiple scales of hydrothermal circulation in Middle Valley, northern Juan de Fuca Ridge: Physical constraints and geologic models | |
| Li et al. | Duplex thrusting in the South Dabashan arcuate belt, central China | |
| Mawalkar et al. | Where is that CO2 flowing? Using Distributed Temperature Sensing (DTS) technology for monitoring injection of CO2 into a depleted oil reservoir | |
| Zakharova et al. | In situ stress analysis in the northern Newark Basin: Implications for induced seismicity from CO2 injection | |
| Bonneville et al. | Heat flow over Reunion hot spot track: Additional evidence for thermal rejuvenation of oceanic lithosphere | |
| CN1095540C (en) | Infrared detecting method for concealed fire spot of self-ignition coal in coal tunnel | |
| CN102176071A (en) | Coal mine fire hazard exploration method based on superficial layer rock temperature measurement | |
| Sun et al. | Optically quantifying spatiotemporal responses of water injection-induced strain via downhole distributed fiber optics sensing | |
| Favorito et al. | Heat Flux From a Vapor‐Dominated Hydrothermal Field Beneath Yellowstone Lake | |
| CN110159347A (en) | A kind of deep high stress tight roof stope dynamic disaster monitoring and pre-alarming method | |
| CN105842738A (en) | Underground target body abnormality quantitative determination method and apparatus | |
| Wu et al. | Shallow crustal thermal structures of central Taiwan foothills region | |
| CN104018825A (en) | Method, device and system for determining temperature of coal gasification fire area | |
| Lawton et al. | Monitoring technology innovation at the CaMI Field Research Station, Brooks, Alberta | |
| Lawton et al. | CCS monitoring technology innovation at the CaMI field research station, Alberta, Canada | |
| Küçük | Simulation of geothermal reservoirs with high amount of carbon dioxide | |
| Peltier et al. | Ground deformation patterns at White Island volcano (New Zealand) between 1967 and 2008 deduced from levelling data | |
| Song et al. | Categorical modeling on electrical anomaly of room-and-pillar coal mine fires and application for field electrical resistivity tomography | |
| Jingbin et al. | The application of seismic attribute analysis technique in coal field exploration | |
| Davis et al. | Heat flow, seafloor: methods and observations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110907 |