CN103995294B - Double electrical method mine perviousness detection methods - Google Patents
Double electrical method mine perviousness detection methods Download PDFInfo
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- CN103995294B CN103995294B CN201410200968.9A CN201410200968A CN103995294B CN 103995294 B CN103995294 B CN 103995294B CN 201410200968 A CN201410200968 A CN 201410200968A CN 103995294 B CN103995294 B CN 103995294B
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000010291 electrical method Methods 0.000 title claims abstract description 14
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000000205 computational method Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000010416 ion conductor Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 150000002500 ions Chemical group 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention proposes a kind of double electrical method mine perviousness detection method, and the computational methods of mine moisture content are as follows: at a certain measuring point, frequency be f1 be to record R1 and C1, at same observation station, during frequency f2, record R2 and C2, then can calculate double electricity frequency dispersion degree Df；C1, C2 are dielectric constant pF of certain measuring point；R1, R2 are the resistivity Ω m of same observation station；Df is double electricity frequency dispersion degree, dimensionless；Then calculate moisture content, mine moisture content Bw can be calculated according to formula, according to Bw and the relative size of marginal value Δ, the permeable situation of real-time monitoring mine can be accomplished, and forecast.Double electrical method mine perviousness detection methods that the present invention proposes are in great many of experiments Fundamentals of Measurement, creatively propose double electrical inspection technology, and the equipment of needs is simple, does not use the various instrument and equipments enumerated in background technology；And operate with simple and convenient, improve efficiency cost-effective.
Description
Technical field
The present invention relates to a kind of double electrical method mine perviousness detection method.Carry out mine moisture content monitoring especially, carry out permeable forecasting technique in early days.
Background technology
Coal mine flood is a kind of common disaster in mine capital construction, production process, and it the most then affects shaft production efficiency, heavy then cause and flood the serious accident that well people dies.Therefore, accurately and timely forecast mine perviousness probability of happening, be the strong guarantee to people's lives and properties.In recent years, coal mine flood accident presents situation occurred frequently always, seriously governs the sustainable development of Coal Energy Source industry.Some the most conventional equipment have YT120 (A) mining audio-frequency electric penetrating instrument, YDZ (A) mine direct current electrical prospecting apparatus, AR ISE digital seismic survey instrument, Geovecteur Plus earthquake data processing system, Canada's V8 system etc..These instruments are much import instruments, fairly expensive, also want the interpretation process software of configuration response to use.On the one hand these instrumentations are relative complex, and additionally the use of software is also required to special training.
Additionally, the double electrical method ground prospecting apparatus of applicant's R & D design, and applied for patent " the double electrical survey (-ing) instrument (application number 201410098193.9) in a kind of ground ", double Electrical Prospecting Technologies can calculate the parameters such as moisture content/salinity, aqueous volume can be provided with sxemiquantitative to amass with containing ore body, but mine perviousness detection is not had detailed process method.
Summary of the invention
The present invention proposes a kind of double electrical method mine perviousness detection method, it is possible to overcomes the not enough problem of current mine perviousness monitoring technology, reaches application convenient.
The technical scheme is that and be achieved in that: a kind of double electrical method mine perviousness detection methods, it is characterised in that:
The computational methods of mine moisture content are as follows:
At a certain measuring point, frequency be f1 be to record R1 and C1, at same observation station, during frequency f2, record R2 and C2, then can calculate double electricity frequency dispersion degree Df:
In above formula: f1, f2 are for measuring frequency, Hz；
C1, C2 are the dielectric constant of certain measuring point, pF；
R1, R2 are the resistivity of same observation station, Ω m；
Df is double electricity frequency dispersion degree, dimensionless；
Then moisture content is calculated:
In above formula: Bw is moisture content, %；
A is the coefficient less than 1, be according to area situation test；
C0For the dielectric constant of this measuring point subsoil water, pF；
Mine moisture content Bw can be calculated according to (one) and (two), according to Bw and the relative size of marginal value Δ, the permeable situation of real-time monitoring mine can be accomplished, and forecast.
As preferably, implementation process is, by ground double electricity survey meter, top board, base plate and work surface front at mine, bury detection electrode underground, measured resistivity and dielectric constant parameter under the different frequency in each orientation of mine by enforcement, according to double electricity frequency dispersion coefficient calculations mine moisture content, when moisture content is more than a certain marginal value Δ, then send warning.
As preferably, described marginal value Δ can be otherwise varied because of geographical conditions or the difference of mine condition, does not has unified numerical value, and this is set according to this area's practical situation by user.
Compared with prior art, it is an advantage of the current invention that: double electrical method mine perviousness detection methods that the present invention proposes are in great many of experiments Fundamentals of Measurement, creatively proposing double electrical inspection technology, the equipment of needs is simple, does not use the various instrument and equipments enumerated in background technology；And operate with simple and convenient, improve efficiency cost-effective.
Accompanying drawing explanation
Fig. 1 is the inspection technique implementing procedure figure of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment: see Fig. 1, a kind of double electrical method mine perviousness detection methods, it is characterised in that:
The computational methods of mine moisture content are as follows:
At a certain measuring point, frequency be f1 be to record R1 and C1, at same observation station, during frequency f2, record R2 and C2, then can calculate double electricity frequency dispersion degree Df:
In above formula: f1, f2 are for measuring frequency, Hz；
C1, C2 are the dielectric constant of certain measuring point, pF；
R1, R2 are the resistivity of same observation station, Ω m；
Df is double electricity frequency dispersion degree, dimensionless；
Then moisture content is calculated:
In above formula: Bw is moisture content, %；
A is the coefficient less than 1, be according to area situation test；
C0For the dielectric constant of this measuring point subsoil water, pF；
Mine moisture content Bw can be calculated according to (one) and (two), according to Bw and the relative size of marginal value Δ, the permeable situation of real-time monitoring mine can be accomplished, and forecast.
As preferably, implementation process is, by ground double electricity survey meter, top board, base plate and work surface front at mine, bury detection electrode underground, measured resistivity and dielectric constant parameter under the different frequency in each orientation of mine by enforcement, according to double electricity frequency dispersion coefficient calculations mine moisture content, when moisture content is more than a certain marginal value Δ, then send warning.
As preferably, described marginal value Δ can because of geographical conditions, the difference of mine condition and otherwise varied, there is no unified numerical value, this is set according to this area's practical situation by user.
Patent " the double electrical survey (-ing) instrument (application number 201410098193.9) in a kind of ground ", relates to a kind of for detecting formation rock resistivity and the logging method of dielectric constant information and instrument.The power supply of this instrument is provided by surface laboratory, and when carrying out deep investigation, power supply is that downhole instrument is powered by cable through power supply circuits；Under rated power and frequency, main electrode send principal current, by two, the bucking electrode being placed in main electrode both sides symmetrical above and below is sent and the electric current of the principal current same sex simultaneously, principal current is focused.Meanwhile, monitor electrode sends the focusing supervising electric current to ensure principal current, has insulator to separate between each electrode.Principal current arrives loop electrode through stratum, calculates resistivity and the dielectric constant on stratum through measuring circuit simultaneously, its measurement result through cable deliver to ground-based computer work station with preserve, complete whole measurement.
When carrying out shallow penetration, power supply is that downhole instrument is powered by power supply circuits；Under rated power and frequency, main electrode send principal current, by two, the bucking electrode being placed in main electrode both sides symmetrical above and below is sent and the electric current of the principal current same sex simultaneously, principal current is focused.Meanwhile, monitor electrode sends the focusing supervising electric current to ensure principal current, has insulator to separate between each electrode.Principal current through stratum arrive loop electrode and, calculate resistivity and the dielectric constant on stratum through measuring circuit simultaneously, its measurement result through cable deliver to ground-based computer work station with preserve, complete whole measurement.
Ion-conductance capacity rate exploration engineering and the double Electrical Prospecting Technology of dielectric constant/resistivity.When ion-conductance capacity rate exploration engineering is used alone, it is possible to there is the identity function of electric resistivity exploration, additionally it is possible to part makes up the deficiency of electric resistivity exploration effect.Double Electrical Prospecting Technologies can calculate the parameters such as moisture content/salinity, can provide aqueous volume with sxemiquantitative and amass with containing ore body.In double electrical prospecting theoretical basiss, the exploration new equipments such as the most excellent water detector of function, mine locator, the permeable early-warning apparatus in colliery can be developed.
Ion-conductance capacity rate rudimentary knowledge: classify according to conduction property, the earth belongs to ionic conductor.All ionic conductors all have conducting watt current and the ability of reactive current, and bigly also the most inevitable also have conducting watt current and the ability of reactive current.In fields of measurement, the physical quantity describing watt current ducting capacity typically uses resistivity (or electrical conductivity), and the physical quantity describing reactive current ducting capacity typically uses ion-conductance capacity rate.In ionic conductor, two adjacent ions form an ion capacitance with interionic H2O, form the total capacitance of ionic conductor after countless ion capacitance series and parallels.
Ion-conductance capacity rate Fundamentals of Measurement method: to supplying the alternating current of lower frequency at 2 between the earth A, B, electric current flows through the earth and the most necessarily forms voltage V, watt current Ir, reactive current Ix.Survey calculation uses Xc=V/Ix obtain capacitive reactance Xc, use C=1/ (2 π FXc) to obtain electric capacity C, use ∈=C*K to obtain ion-conductance capacity rate ∈ (K=electrode coefficient=probe coefficient=measurement scope, the unit=1/m of K in formula).
Double electrical method mine perviousness detection methods that the present invention proposes are in great many of experiments Fundamentals of Measurement, creatively propose double electrical inspection technology, and the equipment of needs is simple, does not use the various instrument and equipments enumerated in background technology；And operate with simple and convenient, improve efficiency cost-effective.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (3)
1. a double electrical method mine perviousness detection method, it is characterised in that:
The computational methods of mine moisture content are as follows:
At a certain measuring point, frequency be f1 be to record R1 and C1, at same observation station, during frequency f2, record R2 and C2, then can calculate double electricity frequency dispersion degree Df:
In above formula: f1, f2 are for measuring frequency, Hz；
C1, C2 are the dielectric constant of certain measuring point, pF；
R1, R2 are the resistivity of same observation station, Ω m；
Df is double electricity frequency dispersion degree, dimensionless；
Then moisture content is calculated:
In above formula: Bw is moisture content, %；
A is the coefficient less than 1, be according to area situation test；
C0For the dielectric constant of this measuring point subsoil water, pF；
Mine moisture content Bw can be calculated according to (one) and (two), according to Bw and the relative size of marginal value Δ, the permeable situation of real-time monitoring mine can be accomplished, and forecast.
The most according to claim 1 pair of electrical method mine perviousness detection method, it is characterized in that: implementation process is, by ground double electricity survey meter, top board, base plate and work surface front at mine, bury detection electrode underground, measured resistivity and dielectric constant parameter under the different frequency in each orientation of mine by enforcement, according to double electricity frequency dispersion coefficient calculations mine moisture content, when moisture content is more than a certain marginal value Δ, then send warning.
The most according to claim 1 pair of electrical method mine perviousness detection method, it is characterised in that: described marginal value Δ can be otherwise varied because of geographical conditions or the difference of mine condition, does not has unified numerical value, and this is set according to this area's practical situation by user.
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| CN201410200968.9A CN103995294B (en) | 2014-05-13 | 2014-05-13 | Double electrical method mine perviousness detection methods |
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| CN201410200968.9A CN103995294B (en) | 2014-05-13 | 2014-05-13 | Double electrical method mine perviousness detection methods |
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| CN103995294B true CN103995294B (en) | 2016-09-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059907A (en) * | 1988-09-06 | 1991-10-22 | Amoco Corporation | Method for evaluating the water saturation of subterranean formations from dielectric permittivity measurements |
| CN101937105A (en) * | 2010-04-28 | 2011-01-05 | 中国石油大学(北京) | Method and device for detecting oil and gas layers through low frequency signals |
| CN102692652A (en) * | 2012-06-12 | 2012-09-26 | 西南石油大学 | Dual electric quantity measuring method and application for ionic conductor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7363159B2 (en) * | 2002-02-28 | 2008-04-22 | Pathfinder Energy Services, Inc. | Method of determining resistivity and/or dielectric values of an earth formation as a function of position within the earth formation |
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2014
- 2014-05-13 CN CN201410200968.9A patent/CN103995294B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059907A (en) * | 1988-09-06 | 1991-10-22 | Amoco Corporation | Method for evaluating the water saturation of subterranean formations from dielectric permittivity measurements |
| CN101937105A (en) * | 2010-04-28 | 2011-01-05 | 中国石油大学(北京) | Method and device for detecting oil and gas layers through low frequency signals |
| CN102692652A (en) * | 2012-06-12 | 2012-09-26 | 西南石油大学 | Dual electric quantity measuring method and application for ionic conductor |
Non-Patent Citations (2)
| Title |
|---|
| 岩芯电容率特征研究及其在流体识别中的应用;刘红岐 等;《西南石油大学学报》;20110430;第33卷(第2期);第51-54页 * |
| 油藏润湿评价方法研究;韩学辉 等;《勘探地球物理进展》;20050228;第28卷(第1期);第19-24页 * |
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