CN105549101A - Transient electromagnetic data differential conductance explanation method - Google Patents
Transient electromagnetic data differential conductance explanation method Download PDFInfo
- Publication number
- CN105549101A CN105549101A CN201610061215.3A CN201610061215A CN105549101A CN 105549101 A CN105549101 A CN 105549101A CN 201610061215 A CN201610061215 A CN 201610061215A CN 105549101 A CN105549101 A CN 105549101A
- Authority
- CN
- China
- Prior art keywords
- transient electromagnetic
- differential conductance
- data
- curve
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a transient electromagnetic data differential conductance explanation method, belonging to a geophysical exploration data explanation method. The differential conductance explanation method is an explanation method of different attenuation characteristics of an induced electromotive force at areas with different resistivities based on a transient electromagnetic prospecting method. The method provided by the invention comprises: S1, designing different stratum models according to the electrical property difference, performing forward modeling of each stratum model, and gathering obtained data; and S2, explaining obtained transient electromagnetic data through adoption of a differential conductance method, and observing the fluctuation condition of the curve of transient electromagnetic differential conductance values changed with the time is observed. The transient electromagnetic data differential conductance explanation method is used for stratum layering and water-containing area determination at the ground and under the shaft. The diffusion electromagnetic field attenuation rate is different based on stratums with different resistivities, the induced electromotive force V and the time t of the data measured by a transient electromagnetic instrument are converted, and electrical property layers are divided and the water-containing areas are determined according to the analysis of the conversion result, therefore the transient electromagnetic data explanation method is enriched.
Description
Technical field
The present invention relates to a kind of geophysical survey data interpretation method, particularly a kind of transient electromagnetic data differential conductance interpretation procedure.
Background technology
China is in fast development, and resource is the basic of guarantee national development, and in resource exploration and recovery process, geophysical survey serves significant role.Particularly in mine water inrush is prevented and treated, transient electromagnetic method is widely used, and decreases the generation of mine water inrush accident, reduces economic loss, ensure that the safety of the people.Transient electromagnetic method is a kind of method having development prospect, and it is sensitive to low-resistance abnormal response, can find out that moisture geology is as Cave and passage, coal mine gob, the irregular water body in deep etc.It is large that transient electromagnetic method has investigation depth, sensitive to low-resistance geologic body, is coupled with the detection of a target, and exception response is strong, and form is simple, the advantages such as resolution characteristic is strong.
Transient electromagnetic method also claims TDEM, is called for short TEM, and it utilizes earth-free loop line or ground connection line source to launch pulsatile once magnetic field to underground, at pulsatile once magnetic field tempus intercalare, utilizes the method for coil or ground-electrode observation secondary turbulence field.Briefly, the ultimate principle of transient electromagnetic method is exactly the law of electromagnetic induction.Attenuation process is generally divided into early, in and late period.Early stage electromagnetic field is equivalent to the radio-frequency component in frequency field, and decay is fast, and skin depth is little; Late period, composition was then equivalent to the low-frequency component in frequency field, and decay is slow, and skin depth is large.By the secondary field Changing Pattern in time of each time period after measurement power-off, the ground electrical feature of different depth can be obtained.
In transient electromagnetic detecting process, it is very fast that electromagnetic field is decayed in high resistant object, and decay in low-resistance object comparatively slow, difference is between the two comparatively obvious.
But be generally that interpretation procedure is single based on apparent resistivity section diagram, multiple instrument channels profile figure for the common version of transient electromagnetic data.
Summary of the invention
The object of the invention is to provide a kind of transient electromagnetic data differential conductance interpretation procedure, solve the problem that current transient electromagnetic data interpretation procedure is more single relative to other geophysical exploration method.
The object of the present invention is achieved like this: differential conductance interpretation procedure is that the induction electromotive force that obtains based on transient electromagnetic prospecting method is in the different interpretation procedure of the regional decay characteristics that resistivity is different; Concrete steps are as follows:
S1, according to electrical property difference design Different Strata model, forward simulation is carried out to various stratigraphic model, and obtained data are gathered.
In described S1 step, to the dissimilar stratigraphic model designed when keeping other factors constant, change its certain Graph One factor and carry out forward simulation, and obtained transient electromagnetic data is carried out Classifying Sum, concrete steps comprise:
(1) design homogeneous half space transient electromagnetic model, resistivity is ρ, and the degree of depth is h, and the size of h=∞, change ρ value, obtain many group homogeneous half space transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(2) design level two-layer stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2=∞, changes ρ respectively
1, h
1, ρ
2size, obtain level two-layer transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(3) design level three layers of stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2; Third layer resistivity is ρ
3, the third layer degree of depth is h
3=∞, changes ρ respectively
1, h
1, ρ
2, h
2, ρ
3size, obtain level three layers of transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V.
The fluctuating situation of S2, the time dependent curve of observation transient electromagnetic differential conductance value, obtains transient electromagnetic induction electromotive force data, uses differential conductance method to make an explanation to transient electromagnetic data.
In described S2 step, differential conductance method, concrete steps comprise:
S21, the cubic spline interpolation about time t is done to gained transient electromagnetic induction electromotive force value V, obtain more abundant transient electromagnetic data, ensure that curve obtained is round and smooth as much as possible after differential conductance process, is more conducive to the explanation to data;
S22, under log-log coordinate system, draw out transient electromagnetic induction electromotive force V in time t change curve;
S23, transient electromagnetic data is carried out to the committed step of differential conductance process for asking for transient electromagnetic differential conductance value K, expression formula is:
Its differential conductance value K is asked to the curve of the t change in time of the induction electromotive force V under log-log coordinate system;
S24, draw out under single logarithmic coordinate system differential conductance value K in time t change curve, i.e. transient electromagnetic differential conductance curve;
S25, by the differential conductance value K of same type in time t change curve be pooled in the same coordinate system according to its changed factor, be made into and gather curve map;
When to three layers of H type Stratigraphic Curves, only change its second layer degree of depth h
2, keep other parameter constants, then its changed factor is second layer degree of depth h
2, what obtain gathers curve map and can be called that three layers of H type stratum second layer change in depth differential conductance gather curve map;
S26, according to transient electromagnetic differential conductance curve fluctuating situation, observe its extreme point position and can divide bed boundary accurately or find underground low-resistance anomalous body.
Traditional transient electromagnetic data is generally the size based on apparent resistivity, data interpretation is carried out by apparent resistivity isoline figure, Comparatively speaking, beneficial effect of the present invention and advantage are: in layering, obtain progress to the explanation of transient electromagnetic data, improve the ability of formation boundary division, effectively can judge the interphase of anomalous body and surrounding country rock; Based on transient electromagnetic induction electromotive force in the widely different feature of the regional decay characteristics that resistivity is different, raw data is not done any approximate, ensure that authenticity and the integrality of data, enriched transient electromagnetic interpretation procedure.
Accompanying drawing illustrates:
Fig. 1 is the curve of transient electromagnetic three layers of H type formation induction electromotive force V t change in time under log-log coordinate system.
Fig. 2 is the curve of the transient electromagnetic three layers of H type formation induction electromotive force V t change in time after coordinate transform.
Fig. 3 is the curve of transient electromagnetic three layers of H type stratum differential conductance value K t change in time under single logarithmic coordinate system.
Fig. 4 a is transient electromagnetic three layers of H type stratum second layer change in depth induction electromotive force curve summary view under single logarithmic coordinate system.
Fig. 4 b is transient electromagnetic three layers of H type stratum second layer change in depth differential conductance curve summary view under single logarithmic coordinate system.
Fig. 5 a be under single logarithmic coordinate system transient electromagnetic all with semispace change in resistance induction electromotive force curve summary view.
Fig. 5 b be under single logarithmic coordinate system transient electromagnetic all with semispace change in resistance differential conductance curve summary view.
Fig. 6 a is ground floor change in depth induction electromotive force curve summary view in transient electromagnetic two-layer D type stratum under single logarithmic coordinate system.
Fig. 6 b is ground floor change in depth differential conductance curve summary view in transient electromagnetic two-layer D type stratum under single logarithmic coordinate system.
Fig. 7 a is transient electromagnetic three layers of Q type stratum ground floor change in depth induction electromotive force curve summary view under single logarithmic coordinate system.
Fig. 7 b is transient electromagnetic three layers of Q type stratum ground floor change in depth differential conductance curve summary view under single logarithmic coordinate system.
Fig. 8 a is transient electromagnetic three layers of Q type stratum second layer change in depth induction electromotive force curve summary view under single logarithmic coordinate system.
Fig. 8 b is transient electromagnetic three layers of Q type stratum second layer change in depth differential conductance curve summary view under single logarithmic coordinate system.
Fig. 9 is transient electromagnetic data differential conductance interpretation procedure process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described:
Differential conductance interpretation procedure is that the induction electromotive force that obtains based on transient electromagnetic prospecting method is in the different interpretation procedure of the regional decay characteristics that resistivity is different; Concrete steps are as follows:
S1, according to electrical property difference design Different Strata model, forward simulation is carried out to various stratigraphic model, and obtained data are gathered.
In described S1 step, to the dissimilar stratigraphic model designed when keeping other factors constant, change its certain Graph One factor and carry out forward simulation, and obtained transient electromagnetic data is carried out Classifying Sum, concrete steps comprise:
(1) design homogeneous half space transient electromagnetic model, resistivity is ρ, and the degree of depth is h, and the size of h=∞, change ρ value, obtain many group homogeneous half space transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(2) design level two-layer stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2=∞, changes ρ respectively
1, h
1, ρ
2size, obtain level two-layer transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(3) design level three layers of stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2; Third layer resistivity is ρ
3, the third layer degree of depth is h
3=∞, changes ρ respectively
1, h
1, ρ
2, h
2, ρ
3size, obtain level three layers of transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V.
The fluctuating situation of S2, the time dependent curve of observation transient electromagnetic differential conductance value, obtains transient electromagnetic induction electromotive force data, uses differential conductance method to make an explanation to transient electromagnetic data.
In described S2 step, differential conductance method, concrete steps comprise:
S21, the cubic spline interpolation about time t is done to gained transient electromagnetic induction electromotive force value V, obtain more abundant transient electromagnetic data, ensure that curve obtained is round and smooth as much as possible after differential conductance process, is more conducive to the explanation to data;
S22, under log-log coordinate system, draw out transient electromagnetic induction electromotive force V in time t change curve;
S23, according to differential conductance expression formula
Its differential conductance value K is asked to the curve of the t change in time of the induction electromotive force V under log-log coordinate system;
S24, draw out under single logarithmic coordinate system differential conductance value K in time t change curve, i.e. transient electromagnetic differential conductance curve;
S25, by the differential conductance value K of same type in time t change curve be pooled in the same coordinate system according to its changed factor, be made into and gather curve map;
When to three layers of H type Stratigraphic Curves, only change its second layer degree of depth h
2, keep other parameter constants, then its changed factor is second layer degree of depth h
2, what obtain gathers curve map and can be called that three layers of H type stratum second layer change in depth differential conductance gather curve map;
S26, according to transient electromagnetic differential conductance curve fluctuating situation, observe its extreme point position and can divide bed boundary accurately or find underground low-resistance anomalous body.
Embodiment 1:
The first step, carries out numerical simulation by transient electromagnetic forward simulation software, obtains required transient electromagnetic data;
Second step, arranges the transient electromagnetic data obtained in the first step, and for often organizing data, first of data are classified as period, and second is classified as time t, and the 3rd is classified as induction electromotive force value V;
3rd step, draws the change curve of induction electromotive force value V about time t in log-log coordinate system;
4th step, to the curve obtained in the 3rd step, with the process of differential conductance method, concrete grammar is as follows:
Keep the time dependent curve shape of induction electromotive force value V in Fig. 1 constant, curve respective coordinates value is taken the logarithm, then obtains the arithmetic coordinate of decile, be referred to as coordinate transform, as Fig. 2;
Ask its gradient to the curve in Fig. 2 again, then its Grad is exactly required differential conductance value K.
5th step, in single logarithmic coordinate system (x-axis is logarithmic coordinate), draws out the time dependent curve of transient electromagnetic differential conductance value K, as Fig. 3.
6th step, the curve of the induction electromotive force value V of same type, differential conductance value K t change is in time pooled in the same coordinate system according to its changed factor, be made into and gather curve map, as Fig. 4 a, Fig. 4 b: to three layers of H type Stratigraphic Curves, only its ground floor of change change degree of depth h
2, keep other parameter constants, then its changed factor is second layer degree of depth h
2, obtain gathering curve map, Fig. 4 a can be called that three layers of H type stratum second layer change in depth induction electromotive force gather curve map, and Fig. 4 b can be called that three layers of H type stratum second layer change in depth differential conductance gather curve map.
7th step, the extreme point formation according to curve carries out qualitative division, and as the curve in Fig. 3 exists two extreme values, maximum value is the separatrix of ground floor and the second layer, and minimal value is the separatrix of the second layer and third layer.
The present invention is completely different from existing transient electromagnetic data interpretation procedure, is not all theoretical foundation with transient electromagnetic signal at resistivity different regions attenuation degree, proposes transient electromagnetic data differential conductance interpretation procedure.
The above; be only the embodiment that the present invention is comparatively short and sweet; protection scope of the present invention is not limited thereto; anyly be familiar with within technical scope that those skilled in the art disclose in the present invention, the simple change of this technology that can obtain apparently or equivalence are replaced and are all fallen within protection scope of the present invention.
Claims (3)
1. a transient electromagnetic data differential conductance interpretation procedure, is characterized in that: differential conductance interpretation procedure is that the induction electromotive force that obtains based on transient electromagnetic prospecting method is in the different interpretation procedure of the regional decay characteristics that resistivity is different; Concrete steps are as follows:
S1, according to electrical property difference design Different Strata model, forward simulation is carried out to various stratigraphic model, and obtained data are gathered;
The fluctuating situation of S2, the time dependent curve of observation transient electromagnetic differential conductance value, obtains transient electromagnetic induction electromotive force data, uses differential conductance method to make an explanation to transient electromagnetic data.
2. a kind of transient electromagnetic data differential conductance interpretation procedure according to claim 1, it is characterized in that: in described S1 step, need to the dissimilar stratigraphic model of design when keeping other factors constant, change its certain Graph One factor and carry out forward simulation, and obtained transient electromagnetic data is carried out Classifying Sum, concrete steps comprise:
(1) design homogeneous half space transient electromagnetic model, resistivity is ρ, and the degree of depth is h, and the size of h=∞, change ρ value, obtain many group homogeneous half space transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(2) design level two-layer stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2=∞, changes ρ respectively
1, h
1, ρ
2size, obtain level two-layer transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V;
(3) design level three layers of stratum transient electromagnetic model, ground floor resistivity is ρ
1, the ground floor degree of depth is h
1; Second layer resistivity is ρ
2, the second layer degree of depth is h
2; Third layer resistivity is ρ
3, the third layer degree of depth is h
3=∞, changes ρ respectively
1, h
1, ρ
2, h
2, ρ
3size, obtain level three layers of transient electromagnetic data, comprise period, time t and corresponding induction electromotive force value V.
3. a kind of transient electromagnetic data differential conductance interpretation procedure according to claim 1, it is characterized in that: in described S2 step, differential conductance method, concrete steps comprise:
S21, the cubic spline interpolation about time t is done to gained transient electromagnetic induction electromotive force value V, obtain more abundant transient electromagnetic data, ensure that curve obtained is round and smooth as much as possible after differential conductance process, is more conducive to the explanation to data;
S22, under log-log coordinate system, draw out transient electromagnetic induction electromotive force V in time t change curve;
S23, transient electromagnetic data is carried out to the committed step of differential conductance process for asking for transient electromagnetic differential conductance value K, expression formula is:
Its differential conductance value K is asked to the curve of the t change in time of the induction electromotive force V under log-log coordinate system;
S24, draw out under single logarithmic coordinate system differential conductance value K in time t change curve, i.e. transient electromagnetic differential conductance curve;
S25, by the differential conductance value K of same type in time t change curve be pooled in the same coordinate system according to its changed factor, be made into and gather curve map;
When to three layers of H type Stratigraphic Curves, only change its second layer degree of depth h
2, keep other parameter constants, then its changed factor is second layer degree of depth h
2, what obtain gathers curve map and can be called that three layers of H type stratum second layer change in depth differential conductance gather curve map;
S26, according to transient electromagnetic differential conductance curve fluctuating situation, observe its extreme point position and can divide bed boundary accurately or find underground low-resistance anomalous body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061215.3A CN105549101B (en) | 2016-01-28 | 2016-01-28 | A kind of transient electromagnetic data differential conductance means of interpretation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061215.3A CN105549101B (en) | 2016-01-28 | 2016-01-28 | A kind of transient electromagnetic data differential conductance means of interpretation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105549101A true CN105549101A (en) | 2016-05-04 |
| CN105549101B CN105549101B (en) | 2018-01-05 |
Family
ID=55828400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610061215.3A Expired - Fee Related CN105549101B (en) | 2016-01-28 | 2016-01-28 | A kind of transient electromagnetic data differential conductance means of interpretation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105549101B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405665A (en) * | 2016-11-18 | 2017-02-15 | 厦门大学 | DBIM-based transient electromagnetic conductivity inversion method |
| CN106772644A (en) * | 2016-12-14 | 2017-05-31 | 中国矿业大学 | mine transient electromagnetic three-component detection method |
| CN115542408A (en) * | 2022-12-05 | 2022-12-30 | 成都理工大学 | Ocean transient electromagnetic data preprocessing and rapid regional imaging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164500A1 (en) * | 2008-10-23 | 2010-07-01 | Siberian Geophysical Research And Production Company, Llc. | Method for quantitative separation of electromagnetic induction and induced polarization effects |
| CN104360401A (en) * | 2014-12-10 | 2015-02-18 | 中国科学院地质与地球物理研究所 | Method for determining geological information of underground target body by transient electromagnetic field B |
| CN104749647A (en) * | 2015-04-09 | 2015-07-01 | 中国科学院地质与地球物理研究所 | Geological interface structure detection method, device and system |
| CN105277994A (en) * | 2015-07-06 | 2016-01-27 | 中煤科工集团西安研究院有限公司 | Determination method and device of differential conductance data synthetic aperture |
-
2016
- 2016-01-28 CN CN201610061215.3A patent/CN105549101B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164500A1 (en) * | 2008-10-23 | 2010-07-01 | Siberian Geophysical Research And Production Company, Llc. | Method for quantitative separation of electromagnetic induction and induced polarization effects |
| EP2352041A1 (en) * | 2008-10-23 | 2011-08-03 | Obshchestvo S Ogranichennoy Otvetstvennostyu "Sibirskaya Geofizicheskaya Nauchno-Proizvodstvennaya Kompaniya" | Method for quantitatively separating the effects of electromagnetic induction and induced polarization |
| CN104360401A (en) * | 2014-12-10 | 2015-02-18 | 中国科学院地质与地球物理研究所 | Method for determining geological information of underground target body by transient electromagnetic field B |
| CN104749647A (en) * | 2015-04-09 | 2015-07-01 | 中国科学院地质与地球物理研究所 | Geological interface structure detection method, device and system |
| CN105277994A (en) * | 2015-07-06 | 2016-01-27 | 中煤科工集团西安研究院有限公司 | Determination method and device of differential conductance data synthetic aperture |
Non-Patent Citations (4)
| Title |
|---|
| RICHADRD S.SMITH 等: "An automatic technique for presentation of coincident-loop,impulse-response,transient electromagnetic data", 《GEOPHYSICS》 * |
| 李貅 等: "瞬变电磁测深的微分电导成像", 《煤田地质与勘探》 * |
| 李超: "瞬变电磁视纵向电导微分成像应用研究", 《中国优秀硕士学位论文全文数据库(基础科学辑)》 * |
| 马索尼: "瞬变电磁微分成像方法的关键技术研究", 《中国优秀硕士学位论文全文数据库(基础科学辑)》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405665A (en) * | 2016-11-18 | 2017-02-15 | 厦门大学 | DBIM-based transient electromagnetic conductivity inversion method |
| CN106405665B (en) * | 2016-11-18 | 2018-09-28 | 厦门大学 | Transient electromagnetic conductivity inversion method based on DBIM |
| CN106772644A (en) * | 2016-12-14 | 2017-05-31 | 中国矿业大学 | mine transient electromagnetic three-component detection method |
| CN106772644B (en) * | 2016-12-14 | 2018-06-26 | 中国矿业大学 | mine transient electromagnetic three-component detection method |
| CN115542408A (en) * | 2022-12-05 | 2022-12-30 | 成都理工大学 | Ocean transient electromagnetic data preprocessing and rapid regional imaging method |
| CN115542408B (en) * | 2022-12-05 | 2023-03-28 | 成都理工大学 | Ocean transient electromagnetic data preprocessing and rapid regional imaging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105549101B (en) | 2018-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104278991B (en) | Saline Lake Facies hydrocarbon source rock organic carbon and the polynary well logging computational methods of hydrocarbon potential | |
| CN104636980B (en) | Collect the geophysics characterizing method of condition for channel reservoir type oil gas | |
| CN105510993A (en) | Foreland basin deep buried and compressed type complex gypsum-salt rock identification and distribution prediction method | |
| CN107632322B (en) | A kind of exploitation method of the cable system suitable for waters electrical prospecting | |
| CN103698811A (en) | Carbonate rock structure component well logging quantitative identification method and application thereof | |
| CN109799540B (en) | Volcanic rock type uranium deposit magnetic susceptibility inversion method based on geological information constraint | |
| CN104678434A (en) | Method for predicting storage layer crack development parameters | |
| CN111352172B (en) | Method for acquiring spatial distribution position of uranium anomaly in sand body by well-seismic combination method | |
| CN105064986A (en) | Method for building reservoir four-property relationship spectrum by using conventional well detection and logging information | |
| CN103207412A (en) | Method for detecting solution leaching and groundwater pollution scope of acid in-situ leaching of uranium | |
| CN104049283A (en) | Method for identifying and predicting huge and thick conglomerate body in foreland basin | |
| CN107065019A (en) | Applied to road disaster and the 3 D electromagnetic imaging device and application method that collapse detection | |
| CN105549101A (en) | Transient electromagnetic data differential conductance explanation method | |
| CN103678778A (en) | Method for radioactive geophysical and geochemical exploration information integration | |
| Dai et al. | Reunderstanding and significance of high-quality reservoirs of the inner Dengying Formation in the Anyue Gas Field | |
| CN105824050A (en) | Blind fault detection instrument and analysis method | |
| CN110968840A (en) | Method for judging grade of tunnel surrounding rock based on magnetotelluric sounding resistivity | |
| Lu et al. | Tunnel concealed karst cave joint detection by tunnel seismic and transient electromagnetic | |
| Xu et al. | Groundwater resources survey of Tongchuan city using the audio magnetotelluric method | |
| Rybin et al. | Deep Geoelectric Structure of the Earth’s Crust and the Upper Mantle of the Pamir–Alai Zone | |
| Wu et al. | Combination of seismic attributes using clustering and neural networks to identify environments with sandstone-type uranium mineralization | |
| CN115857047A (en) | Comprehensive prediction method for seismic reservoir | |
| Lyu et al. | Classification, modeling and characterization of marine carbonate paleokarst reservoirs in Tahe Oilfield, Tarim Basin, China | |
| CN114839671A (en) | Method for finely identifying coal measure stratum electrical interface by ground and ground roadway transient electromagnetic method | |
| CN106484989A (en) | A kind of method that utilization well-log information computer quickly divides coal rank type automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |