CN109343130A - A kind of the Loop source ground well transient electromagnetic detecting method and system of broadside - Google Patents
A kind of the Loop source ground well transient electromagnetic detecting method and system of broadside Download PDFInfo
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- CN109343130A CN109343130A CN201811421929.6A CN201811421929A CN109343130A CN 109343130 A CN109343130 A CN 109343130A CN 201811421929 A CN201811421929 A CN 201811421929A CN 109343130 A CN109343130 A CN 109343130A
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
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Abstract
The present invention relates to a kind of transient electromagnetic detecting method and systems, belong to technical field of geophysical exploration, are specifically related to the Loop source ground well transient electromagnetic detecting method and system of a kind of broadside.The present invention excites anomalous body in side by earth-free loop line, it can be to shape or the good coupling effectiveness of vertical low-resistance plate body generation of rising steeply, secondary field signal is received using reception device in tunnel or drilling, stronger response signal can be received, inversion procedure is carried out to signal is received using the data processing method of proposition, accurate explanation results can be obtained.
Description
Technical field
The present invention relates to a kind of transient electromagnetic detecting method and systems, belong to technical field of geophysical exploration, specifically
It is related to the Loop source ground well transient electromagnetic detecting method and system of a kind of broadside.
Background technique
Geophysical method is more early for Goaf Area or low-resistance geologic body detection application, and method type is more, takes
The effect obtained is also preferable, wherein the method relatively good to property of water-bearing Effect on Detecting, based on electromagnetic method, electromagnetic method specifically includes again
By the direct current class electrical method that represents and transient electromagnetic of high density as the induced electrical method of representative.There is ground again for transient electromagnetic method
A variety of methods such as face large fixed loop TEM and ground well transient electromagnetic method.
Transient electromagnetic method belongs to an important branch in electromagnetism class detection method, and the physical property basis of foundation is underground medium
Resistivity contrasts.Pulsatile once magnetic field (primary field) is sent to underground using the earth-free loop line in ground or ground connection line source,
Under it is excited, the inductive loop motivated in underground geologic bodies will generate the induction field (secondary field) changed over time.Wink
Power transformation magnetic method is quick on the draw to post non of low resistance body, be widely used in finding at present water resource, metal ore, mine it is latent containing/
Permeable structure and channel detection.It but is a problem for shape or the detection of vertical plate body are risen steeply in underground, because of it
Horizontal direction sectional area is typically small, and conventional method is difficult to generate preferable stimulation effect, has seriously affected transient electromagnetic method
Detectivity.
Ground well transient electromagnetic method is an important branch of transient electromagnetic method, and research starts from 1970s, phase earliest
It closes scholar and is concentrated mainly on the western countries such as Canada, Australia, and have developed a variety of ground well transient electromagnetic detecting instruments.
This method advantage is to be placed in receiving transducer in underground passage or drilling, can receive three components of inducted secondary field,
Realize the Detection location to low-resistance geologic body, due to receiving position more closely plastid, receiving transducer is in underground passage or brill
It is smaller by conductive covering layer and external electromagnetic interference in hole, exception response more stronger than ground can be obtained, is visited to the maximum extent
Deep geoelectric structure and geologic body are surveyed, especially when ground transient electromagnetic method can not obtain effective anomaly, the advantage of this method is just
It is more prominent.
Application No. is 201610061215.3 Chinese invention patents to disclose a kind of transient electromagnetic data differential conductance solution
Technology is released, is a kind of means of interpretation different in the different regional decay characteristics of resistivity based on induced electromotive force, although the party
Method greatly enriches large loop source transient electromagnetic means of interpretation, but rises steeply the spy of shape or vertical plate body for underground
It is still undesirable to survey effect.
Application No. is a kind of 201610398371.9 Chinese invention patent with disclosing transient electromagnetic method hole detection methods
With device, in the large transmitter loop that ground configuration surrounds objective body stratum entirely, directly receiver hole is all in the drilling of underground concordant
The three component seismic data of secondary field is enclosed, Detecting Hidden causes the information such as position and the scale of calamity body.The loop line projected position will need
The formation at target locations of detection is all surrounded, i.e. projection of the drilling on ground is located in loop line.For the detection device, earth-free loop line
The magnetic field of generation and the coupling effect of plate body are poor, and plate body can not induce stronger secondary field, and even probe is attached
It is received in nearly drilling, can not also obtain strong exception response, therefore this method is for shape or the vertical low-resistance plate of rising steeply
The Effect on Detecting of body is weaker.
Therefore, transient electromagnetic detecting method in the prior art and system are improved, to meet different application scene
Demand, be current technical problem in the urgent need to address.
Summary of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
In the prior art, large transmitter loop objective body stratum surrounded entirely in ground configuration, in the drilling of underground concordant
The three component seismic data of secondary field around direct receiver hole.Loop line projected position all surrounds the formation at target locations for needing to detect.It is right
In the detection device, the magnetic field that earth-free loop line generates and the coupling effect for the plate body that rises steeply are poor, and plate body can not induce
Stronger secondary field is even popped one's head in and is received in nearby drilling, can not also obtain strong exception response, therefore this method pair
It is weaker in the Effect on Detecting of rise steeply shape or vertical low-resistance plate body.The present invention foundation suberect feature of objective body occurrence,
The magnetic field for emitting wire frame excitation according to Ampere's law is nearly vertical distribution inside frame, i.e. horizontal component very little, in outer frame magnetic
Field gradually tilts, and horizontal component becomes larger.If being difficult to obtain effective excitation if rising steeply plate body in frame, if the plate body that rises steeply exists
Outer frame, i.e. the ground Loop source of arrangement side excitation, can make the magnetic line of force pass through rise steeply shape or vertical low-resistance to greatest extent
Plate body makes to generate optimal stimulation effect in anomalous body, obtains stronger geologic body exception response signal, accurately detect loop line
Rise steeply shape or vertical low-resistance plate body for the underground in outside.
Decayed in the prior art based on the induced electromotive force that transient electromagnetic exploitation method obtains in the different area of resistivity
The different means of interpretation of feature, although this method greatly enriches large loop source transient electromagnetic means of interpretation, as normal
Advise ground transient electromagnetic method, for underground rise steeply shape or vertical plate body Effect on Detecting it is still undesirable.The present invention exists
Arrange that survey line receives three-component transient electromagnetic field in earth drilling or tunnel, reception device is close from anomalous body, anti-based on electric current loop
Algorithm, by the processing to three-component magnetic field value, the spatial positional information of obtain rising steeply shape or vertical low-resistance plate body.
To solve the above problems, the scheme of the invention is:
In the earth-free loop line of ground configuration, the earth-free loop line is connected with transmitting equipment, forms emission system, it is described
The side of the floor projection position of earth-free loop line objective body located underground；
Arrangement receives survey line in the underground passage or drilling, and the reception survey line is located at the earth-free loop line projection
Outside；
Receiving transducer is placed at the measuring point for receiving survey line, the receiving transducer is connected with receiving device, and composition receives
System；
Wherein, emission system is located at ground, receives in system space located underground, emission system and reception system can pass through
Synchronizing cable is coupled or realizes separation by the way that quartz clock is synchronous.
The reception survey line being arranged in underground passage or drilling, is arranged for level of approximation.
The size of the earth-free Loop source in ground is 0.5 times or more of objective body buried depth, and the loop line Source size is loop line
The side length in source, target buried depth are the buried depth for the objective body of being detected, and loop line Source size is greater than 0.5 times of buried depth, Neng Goubao
Primary field intensity is larger at card objective body, and anomalous body can sufficiently be excited to generate secondary magnetic field.
The arrangement foundation of the earth-free Loop source in ground is that static field line is made to generate bigger sectional area at objective body,
According to the suberect feature of objective body occurrence, the magnetic field that wire frame excitation is emitted according to Ampere's law is nearly vertical distribution inside frame
, i.e. horizontal component very little gradually tilts, horizontal component becomes larger in outer frame magnetic field.It is difficult to if if rising steeply plate body in frame
Effectively excitation is obtained, if the plate body that rises steeply can make magnetic line of force maximum limit in outer frame, i.e. the ground Loop source of arrangement side excitation
Degree passes through rise steeply shape or vertical low-resistance plate body, makes to generate optimal stimulation effect in anomalous body, obtains stronger geology
Body exception response signal, rise steeply shape or vertical low-resistance plate body for the accurate underground detected on the outside of loop line.
By feeding direct current to earth-free loop line, stable artificial magnetic field is established in target area, is truncated earth-free time
Electric current in line, then stratum and objective body inside foundation faraday electromagnetic induction phenomenon generate induced current respectively, are then formed
Induced magnetic field；Receiving transducer is arranged at the measuring point in the underground passage or drilling, is acquired three-component magnetic field signal, is obtained one
The data of a measuring point；Probe is moved on into next measuring point, three-component magnetic field signal is acquired, recycles repeatedly, it is attached in anomalous body
Close or more violent data variation place data needs to carry out encryption acquisition, obtains the overall data of survey line.
The road Duo Ce is carried out to three component seismic data collected to calculate at figure, electric current loop inverting scheduling algorithm, is obtained in objective body
The detection to objective body is realized in the size of induced current ring and spatial position.
The beneficial effects of the present invention are: the present invention excites anomalous body in side by earth-free loop line, it can be right
Rise steeply shape or vertical low-resistance plate body generates coupling effectiveness well, is received in tunnel or drilling using reception device secondary
Field signal can receive stronger response signal, carry out inversion procedure to signal is received using the data processing method of proposition,
Accurate explanation results can be obtained.
Detailed description of the invention
It is incorporated herein and the attached drawing for forming part of specification instantiates the embodiment of the present invention, and attached drawing and explanation
Book is further used for explaining the principle of the present invention together and one of ordinary skill in the art is enabled to make and use the disclosure.
Fig. 1 instantiates the detection device schematic diagram in the embodiment of the present invention；
Fig. 2 instantiates survey line and transmitting frame arrangement schematic diagram in the embodiment of the present invention；
Fig. 3 instantiates the road Zhong Duoce of embodiment of the present invention curve synoptic diagram；
Fig. 4 (a)-(b) instantiates electric current loop reverse simulation figure and inverse model schematic diagram in the embodiment of the present invention；
The embodiment of the present invention is described with reference to the accompanying drawings.
Specific embodiment
Embodiment
A kind of Loop source ground well transient electromagnetic detecting method of broadside is provided in the present embodiment.
Fig. 1 instantiates the detection device schematic diagram in the embodiment of the present invention；Fig. 1 is only along coal seam forward probe geology
It is described for anomalous body, it should be understood that, the description is merely illustrative, the present invention is not limited in along coal
In the scheme of layer forward probe geological anomalous body.
The specific embodiment of the invention includes step:
(1) if needing there is no drilling in the formation at target locations detected in underground, first drilling is needed, tunnel 10 is met head on
11 fronts, along 5 drilling of tunneling direction coal seam, need to determine according to aqueous 6 place depth of geological anomalous body or investigation depth
Drilling depth.
(2) according to objective body essential information, according to house data calculated result, targetedly, reasonably arrangement side is excited
Ground Loop source 2, the principle of arrangement is to make the magnetic line of force is as much as possible to pass through abnormal water-bearing body, makes transmitting loop and aqueous
Matter anomalous body generates optimal couple state.
(3) transmitting loop 2 is connected with ground launch equipment, forms emission system.Transmitting loop is for being loaded with to the ground
The electric current 3 of direct current square wave sends primary field 7 to underground, and wherein the size of ground loop line is 0.5 times or more of objective body buried depth.
(4) the aqueous geological anomalous body 6 in underground is under the action of primary field 7, inside can generate induced current, be also known as vortexed
8, because of the effect that vortex changes over time, new magnetic field, referred to as secondary field 9 are generated around it.
(5) receiving transducer is placed in drilling 12, is connected with receiving device, and reception system is formed.Receiving transducer is drilling
Middle reception three component seismic data, is moved to next measuring point after reception, complete the data acquisition of whole survey line, compare in data variation
Near big or anomalous body, the method for encryption measuring point acquisition is taken.
(6) road Duo Ce is carried out to three component seismic data collected to calculate at figure, electric current loop inverting scheduling algorithm, realize to geology
The space orientation of body.
Specifically again include wherein the following contents to above-mentioned steps (6) data handling procedure:
Ground well transient electromagnetic data processing step is different from conventional transient electromagnetic, and it is also different that achievement shows form, generally not
Use the mode of apparent resistivity pseudosection or plane isopleth provide exploration as a result, but in the form of the road Duo Ce figure, in conjunction with
Inversion Software directly gives position and the general shape of local anomalous body.The data processing step of ground well transient electromagnetic is mainly as follows
Several steps:
1. determining valid data section according to single-point curve；
2. situations such as according to exploration area anomalous body type, buried depth, stratum, determines anomalous body response time section；
3. analyzing three-component single-point attenuation curve changing rule, delineation abnormality attenuation curve；
4. according to theoretical model lithology interface response characteristic, and log, composite columnar section is combined to divide actual measurement three
The road Liang Duoce curve carries out comprehensive analysis, determines that strata interface responds；
5. drawing a circle to approve local anomalous body according to the road theoretical background stratum three-component Duo Ce tracing pattern on the road Duo Ce curve and ringing
Feature is answered, and the abnormal single-point curve of step 3 is combined to be analyzed to identify；
6. dividing the depth bounds that local anomalous body occurs；
7. carrying out electric current loop inverting extremely to typical ground well transient electromagnetic, abnormal progress inverting is extracted when necessary；
Geologic interpretation finally is carried out to the anomalous body of inverting.
A kind of Loop source ground well transient electromagnetic detecting system of broadside is provided in the present embodiment.As shown in Figure 1, packet
It includes:
Loop source is set to ground and couples with the generation of aqueous geological anomalous body, for producing under the excitation of emitter
Raw primary field；
Reception device is set in formation at target locations drilling, for receiving secondary field data.
In the present embodiment, the reception device is used in formation at target locations drilling by predetermined as a preferred method,
Track receives secondary field data point by point.
In the present embodiment, the size of Loop source is 0.5 times or more of objective body buried depth as a preferred method,.
Fig. 2-4 is the concrete application of the embodiment of the present invention.In Fig. 2-4, a ground is selected in outer development verification experimental verification work out of office
Under embedding water tank as detection objective body, objective body central point buried depth 7.5m, having a size of length × width × height: 4m × 1m ×
5m.Transmitting loop side length is 100m × 50m, and transmitting fundamental frequency is 5Hz, and emission current 13A, electric current is counterclockwise side
Excitation, water tank floor projection central point is away from survey line frame 5m.Arrange survey line in the underground pit in simulation tunnel, survey line 1 away from
Frame horizontal distance is 4.5m, and survey line 2 is 7.5m away from frame, and coordinate origin selects 2 starting point of survey line (left end), and objective body center is sat
It is designated as (35,12.5, -7.5).Testing ground arrangement of measuring-line is as shown in Figure 2.
Fig. 3 instantiates the road Zhong Duoce of embodiment of the present invention curve synoptic diagram；In figure, (a), (b) (c) is the actual measurement of survey line 1
The road three-component Duo Ce curve, (d) (e) (f) is that survey line 2 surveys the road three-component Duo Ce curve, it can be seen from the figure that two surveys line
Three component seismic data nearby has obvious protrusion in corresponding water tank position, i.e. abscissa 35, illustrates that initial data is anti-to objective body
It reflects obvious.
Fig. 4 (a)-(b) instantiates electric current loop reverse simulation figure and inverse model schematic diagram in the embodiment of the present invention；In figure
It (a) is three-component list time road fitted figure, as can be seen from the figure curve-fitting data degree is preferable.Scheming (b) is inversion result
Schematic diagram.
In order to more obviously analyze inversion accuracy, inversion result parameter is shown as follows:
Can be seen that electric current loop inverting from the processing result of upper table can succeed inverting water tank position and dimensional parameters,
Middle survey line 1 is more preferable than 2 efficiency of inverse process of survey line, illustrates that the reception the close from objective body, it is more accurate to detect.
In the present embodiment, although the above method to be illustrated to and is described as a series of actions to simplify to explain, answer
It is appreciated and understood that, the order that these methods are not acted is limited, because according to one or more embodiments, some movements can be by not
Occur with order and/or with from depicted and described herein or not shown herein and describe but those skilled in the art can be with
Other movements understood concomitantly occur.
It is noted that " one embodiment ", " embodiment ", " example embodiment ", " some embodiments " etc. in specification
Reference instruction described embodiment may include a particular feature, structure, or characteristic, but each embodiment may not necessarily include
The a particular feature, structure, or characteristic.Moreover, such phrase is not necessarily referring to the same embodiment.In addition, ought retouch in conjunction with the embodiments
When stating a particular feature, structure, or characteristic, regardless of whether being expressly recited, such feature, structure are realized in conjunction with other embodiments
Or characteristic will be in the knowledge of those skilled in the art.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (9)
1. a kind of Loop source ground well transient electromagnetic detecting method of broadside, it is characterised in that:
It is connected in the earth-free loop line of ground configuration and with transmitting equipment to form emission system, the earth-free loop line is located underground
The floor projection position side of objective body；
Arrangement receives survey line in the underground passage or drilling, and the survey line that receives is located at the outer of the earth-free loop line projection
Side；
Receiving transducer is placed at the measuring point for receiving survey line, the receiving transducer is connected with receiving device, and composition receives system
System.
2. ground well transient electromagnetic detecting method according to claim 1, which is characterized in that
Emission system is coupled by synchronizing cable with the system of reception or by quartz clock synchronous realization separation.
3. ground well transient electromagnetic detecting method according to claim 1, which is characterized in that it is described be arranged in underground passage or
Reception survey line in drilling is along roadway floor or drilling arrangement.
4. ground well transient electromagnetic detecting method according to claim 1, which is characterized in that the ruler of the earth-free Loop source in ground
Very little 0.5 times or more for objective body buried depth, the loop line Source size are the side length of Loop source, and target buried depth is the mesh of being detected
The buried depth of standard type, loop line Source size are greater than 0.5 times of buried depth.
5. ground well transient electromagnetic detecting method according to claim 1, which is characterized in that by being fed to earth-free loop line
Direct current establishes stable artificial magnetic field in target area, and the electric current in earth-free loop line is truncated；In the underground passage or brill
Receiving transducer is arranged at measuring point in hole, is acquired three-component magnetic field signal, is obtained the data of a measuring point；Probe is moved on to next
A measuring point acquires three-component magnetic field signal, recycles repeatedly, near anomalous body or place that data variation is more violent
Data need to carry out encryption acquisition, obtain the overall data of survey line.
6. ground well transient electromagnetic detecting method according to claim 1 or 4, which is characterized in that three-component collected
Data carry out the road Duo Ce and calculate at figure, electric current loop inversion algorithm, obtain size and the spatial position of objective body induced currents ring.
7. a kind of Loop source ground well transient electromagnetic detecting system of broadside characterized by comprising
Be arranged in the earth-free loop line on ground, the earth-free loop line is connected to form emission system with transmitting equipment, it is described not
The floor projection position side of earth return circuit objective body located underground；
The reception survey line being arranged in the underground passage or drilling, the survey line that receives are located at the earth-free loop line projection
Outside；
The receiving transducer being placed at the measuring point for receiving survey line, the receiving transducer are connected with receiving device, and composition receives
System.
8. ground well transient electromagnetic detecting system according to claim 7, which is characterized in that
Emission system is coupled by synchronizing cable with the system of reception or by quartz clock synchronous realization separation.
9. ground well transient electromagnetic detecting system according to claim 1, which is characterized in that it is described be arranged in underground passage or
Reception survey line in drilling is along roadway floor or drilling arrangement.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433254A (en) * | 2020-12-03 | 2021-03-02 | 长江大学 | Method for exploring water disaster position of coal mine working face |
| CN112485833A (en) * | 2020-11-09 | 2021-03-12 | 江苏南京地质工程勘察院 | Urban tunnel abnormal body detection method based on loop line source ground hole transient electromagnetism |
| CN113063845A (en) * | 2021-03-25 | 2021-07-02 | 西南石油大学 | Buried pipeline buried depth rapid detection method based on self-leakage magnetic field and artificial neural network |
| CN114035237A (en) * | 2021-11-01 | 2022-02-11 | 中国矿业大学 | Ground drilling transient electromagnetic method for monitoring coal mining separation layer water forming process |
| WO2022193403A1 (en) * | 2021-03-15 | 2022-09-22 | 中国科学院地质与地球物理研究所 | Multi-line ground-borehole transient electromagnetic detection method and apparatus |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166024A1 (en) * | 2004-06-18 | 2009-07-02 | Schlumberger Technology Corporation | Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| CN102272633A (en) * | 2008-11-10 | 2011-12-07 | Cbg公司 | Azimuthally sensitive resistivity logging tool |
| CN102353995A (en) * | 2011-09-29 | 2012-02-15 | 北京先驱高技术开发公司 | Deep-sea transient electromagnetic surveying device and method thereof |
| CN102508308A (en) * | 2011-11-03 | 2012-06-20 | 山东大学 | Transient electromagnetic multipoint array-type detection method of tunnel |
| CN103837899A (en) * | 2014-03-14 | 2014-06-04 | 长沙五维地科勘察技术有限责任公司 | Transient electromagnetic measurement device and method |
| CN104090306A (en) * | 2014-07-01 | 2014-10-08 | 中煤科工集团西安研究院有限公司 | Method for detecting radial water cut abnormal body in underground coal mine drilled hole |
| CN104375194A (en) * | 2014-11-10 | 2015-02-25 | 山东能源集团有限公司 | Electrical source transient electromagnetic exploration method in water-rich area of deep mining mine |
| CN105824052A (en) * | 2016-02-25 | 2016-08-03 | 西安西北有色物化探总队有限公司 | Underground target body transient electromagnetic multicomponent synthesis method and device |
| CN106094043A (en) * | 2014-06-11 | 2016-11-09 | 中煤科工集团西安研究院有限公司 | Transient electromagnetic method ground hole detection method and device |
| CN107065023A (en) * | 2016-12-22 | 2017-08-18 | 煤炭科学技术研究院有限公司 | A kind of detection system gathered based on space multistory transient electromagnetic data above and below well |
| CN107894620A (en) * | 2017-11-02 | 2018-04-10 | 中国科学院电子学研究所 | A kind of air code mixes field source electromagnetic survey system |
-
2018
- 2018-11-27 CN CN201811421929.6A patent/CN109343130B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166024A1 (en) * | 2004-06-18 | 2009-07-02 | Schlumberger Technology Corporation | Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| CN102272633A (en) * | 2008-11-10 | 2011-12-07 | Cbg公司 | Azimuthally sensitive resistivity logging tool |
| CN102353995A (en) * | 2011-09-29 | 2012-02-15 | 北京先驱高技术开发公司 | Deep-sea transient electromagnetic surveying device and method thereof |
| CN102508308A (en) * | 2011-11-03 | 2012-06-20 | 山东大学 | Transient electromagnetic multipoint array-type detection method of tunnel |
| CN103837899A (en) * | 2014-03-14 | 2014-06-04 | 长沙五维地科勘察技术有限责任公司 | Transient electromagnetic measurement device and method |
| CN106094043A (en) * | 2014-06-11 | 2016-11-09 | 中煤科工集团西安研究院有限公司 | Transient electromagnetic method ground hole detection method and device |
| CN104090306A (en) * | 2014-07-01 | 2014-10-08 | 中煤科工集团西安研究院有限公司 | Method for detecting radial water cut abnormal body in underground coal mine drilled hole |
| CN104375194A (en) * | 2014-11-10 | 2015-02-25 | 山东能源集团有限公司 | Electrical source transient electromagnetic exploration method in water-rich area of deep mining mine |
| CN105824052A (en) * | 2016-02-25 | 2016-08-03 | 西安西北有色物化探总队有限公司 | Underground target body transient electromagnetic multicomponent synthesis method and device |
| CN107065023A (en) * | 2016-12-22 | 2017-08-18 | 煤炭科学技术研究院有限公司 | A kind of detection system gathered based on space multistory transient electromagnetic data above and below well |
| CN107894620A (en) * | 2017-11-02 | 2018-04-10 | 中国科学院电子学研究所 | A kind of air code mixes field source electromagnetic survey system |
Non-Patent Citations (2)
| Title |
|---|
| 王鹏: ""井-地瞬变电磁法浮动系数空间交汇与等效电流环反演方法研究"", 《中国博士学位论文全文数据库 工程科技I辑》 * |
| 龚惠民 等: ""瞬变电磁法在断裂构造上的异常反映"", 《中国煤田地质》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485833A (en) * | 2020-11-09 | 2021-03-12 | 江苏南京地质工程勘察院 | Urban tunnel abnormal body detection method based on loop line source ground hole transient electromagnetism |
| CN112433254A (en) * | 2020-12-03 | 2021-03-02 | 长江大学 | Method for exploring water disaster position of coal mine working face |
| WO2022193403A1 (en) * | 2021-03-15 | 2022-09-22 | 中国科学院地质与地球物理研究所 | Multi-line ground-borehole transient electromagnetic detection method and apparatus |
| CN113063845A (en) * | 2021-03-25 | 2021-07-02 | 西南石油大学 | Buried pipeline buried depth rapid detection method based on self-leakage magnetic field and artificial neural network |
| CN114035237A (en) * | 2021-11-01 | 2022-02-11 | 中国矿业大学 | Ground drilling transient electromagnetic method for monitoring coal mining separation layer water forming process |
| CN114035237B (en) * | 2021-11-01 | 2023-09-15 | 中国矿业大学 | Ground drilling transient electromagnetic method for monitoring coal mining separation layer water formation process |
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