CN114152987A - True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method - Google Patents
True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method Download PDFInfo
- Publication number
- CN114152987A CN114152987A CN202111575441.0A CN202111575441A CN114152987A CN 114152987 A CN114152987 A CN 114152987A CN 202111575441 A CN202111575441 A CN 202111575441A CN 114152987 A CN114152987 A CN 114152987A
- Authority
- CN
- China
- Prior art keywords
- measuring
- measuring point
- line
- current
- electrodes
- 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
Images
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
- G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
- G01V3/04—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using dc
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 invention discloses a true three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on a dual-mode parallel electrical method, which comprises the following steps: the method comprises the steps of arranging a plurality of two-dimensional or three-dimensional dual-mode network parallel electrical method systems, wherein x superposed electrodes are arranged between any two measuring lines, normalizing power supply current and potential data when the electrodes of the two measuring lines supply power respectively, and combining data between the two measuring lines, wherein when the superposed electrodes supply power, because the current is normalized, the infinite positions of the superposed electrodes are not changed when the two measuring lines supply power respectively, and the magnitudes of the power supply currents are consistent, the data of the two measuring lines can be directly combined according to the actual sequence of the electrodes. Therefore, the power supply receiving data of the two independent measuring lines are connected together through the coincident electrodes to form a data body transmitted and received by the electrodes between the two measuring lines, and relevant data extraction and inversion are carried out on the basis of the data body, so that the longitudinal resolution of the inversion result between different measuring lines can be improved, and the inversion accuracy is improved.
Description
Technical Field
The invention relates to a data deduction and synthesis method in the field of geophysical exploration and measurement methods, in particular to a true three-dimensional observation system arrangement and a true three-dimensional data volume synthesis method based on a dual-mode parallel electrical method in the field of direct current electrical method data acquisition and processing.
Background
In order to ensure the safety of production and construction activities, the accuracy requirement of geological exploration is gradually improved, and a geophysical prospecting method is taken as an important exploration means, compared with the traditional drilling method, the method has obvious advantages in detection time and non-destructive property, the method for improving the detection interpretation precision is an ultimate target of geophysical prospecting processing interpretation work, the interpretation precision has a direct relation with a selection method, an observation system and the like, the direct current electrical prospecting technology is a mature exploration means in the geophysical prospecting method, and the principle is as follows: two power supply electrodes A, B are used to supply a stable electric field to earth, and the earth resistivity characteristics of the space volume are obtained by measuring the potential within a certain range by using the measuring electrode M, N, so as to carry out geological evaluation on the area. The resistivity method exploration can be divided into a one-dimensional (electrical sounding method), a two-dimensional (two-pole method, three-pole method and four-pole method) in space as shown in fig. 2 and a three-dimensional exploration method, and the arrangement mode of observation systems with different dimensions can obtain potential difference information of any two electrodes in space, so that the inversion accuracy of detection data is improved. Due to the volume effect of electrical prospecting, one-dimensional and two-dimensional prospecting methods have poor accuracy in locating the geologic volume within the detection area. Because the three-dimensional electrical prospecting electrode arrangement can acquire potential difference information between any two electrodes in a space position, the detection result can more accurately position an abnormal body in a detection range, but the requirements on the number of instruments and the data acquisition speed are increased. In view of the current state of the industry, the following problems mainly exist in the three-dimensional electrical prospecting: (1) the method is limited to various reasons, the electric methods owned by most construction units at present are traditional high-density electric methods, the data acquisition efficiency is low, and the parallel high-density electric methods capable of efficiently acquiring the three-dimensional observation system cannot be popularized; (2) because the common high-density electrical method instrument needs more time for acquiring three-dimensional data, the field construction is difficult to complete the work task on schedule, and most production units acquire the electrical method exploration data of two-dimensional measuring lines on the field; (3) at present, some technicians give a three-dimensional coordinate (figure 3) to a plurality of two-dimensional measuring lines and invert data, so that the inversion result obtained by inverting the data is greatly different from the inversion result of the data extracted by a true three-dimensional observation system (figure 4) in detection precision, because the data extracted between each independent measuring line has no relevance, the extracted data only supplies power current and potential difference to electrodes between each independent measuring line, the potential difference of any two electrodes between two adjacent measuring lines cannot be obtained, and the constraint condition of an electric field between the two measuring lines is lacked during data inversion; (4) even if a parallel high-density electrical method instrument with efficient acquisition exists, the number of instrument channels of a construction unit is limited, and the three-dimensional electrical method observation system cannot be arranged under the field working environment and geological conditions, namely, the situation the same as that in the step (3) occurs, and the large-scale three-dimensional resistivity exploration cannot be carried out.
How to use the existing instrument to perform three-dimensional electrical prospecting, improve the correlation degree of data between every two measuring lines and improve the result interpretation precision is a problem to be explained. At present, pseudo three-dimensional electrical data inversion processing or multi-channel small-range mutually independent true three-dimensional observation system data inversion is commonly carried out by adopting three-dimensional coordinates given by two-dimensional observation system data in documents and reports. Both of these approaches apparently do not address the inversion resolution between lines.
Disclosure of Invention
The invention aims to solve the defects of the background technology, provides a true three-dimensional observation system arrangement and a true three-dimensional data volume synthesis method based on a dual-mode parallel electrical method, can finish three-dimensional electrical method exploration in a detection area for many times through relatively few electrode tracks, can extract potential difference information of any two electrodes between two mutually independent measuring lines and bring the potential difference information into inversion calculation, improves inversion resolution between the measuring lines, and enables the inversion result to more accurately position an abnormal body.
The solution of the invention is as follows: a true three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on a dual-mode parallel electrical method comprises the following steps:
(1) a plurality of parallel electrical method measuring lines of a two-dimensional or three-dimensional observation system are arranged in a detection area, and the measuring lines are partially overlapped with electrodes, as shown in figures 1 and 5.
The two-dimensional or three-dimensional dual-mode parallel electrical observation system comprises: the device comprises a public power supply electrode B, a public reference electrode G and a plurality of groups of isolated electrode groups, wherein p measuring points are provided in total, each measuring point is provided with one group of isolated electrode groups, the public power supply electrode B is placed at an infinite distance, the infinite distance is defined to be 3-5 times of the length of a measuring line, and the public reference electrode G is placed at any position; each group of isolated electrode groups comprises a power supply electrode and a measuring electrode, and the electrode distance between each group of isolated electrodes is a, as shown in fig. 7;
the electrodes partially overlapped between the measuring lines can be any one or more electrodes on two or more measuring lines, as shown in fig. 1 and 5;
the plurality of measuring lines in the measuring area are convenient to express and numbered according to measuring line 1 and measuring line 2 … … respectively;
(2) carrying out data acquisition on the measuring line 1 to obtain an AM data set, and recording the current when each measuring point supplies power and the acquired potential data of other measuring points as
The matrix respectively represents the current when the 1# measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the 1# measuring point supplies power from the first row to the last row, the current when the 2# measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the 2# measuring point supplies power from the first row to the last row, and the current when the p # measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the p # measuring point supplies power from the last row;
(3) arranging a measuring line 2 in the measuring area, wherein the first measuring line 2 and the measuring line 1 are provided with X coincident electrodes respectively C1、C2……CxThe X superposed electrodes are any X of p electrodes in the measuring line 1, and the more the number of the superposed electrodes is, the more complete the synthesized three-dimensional data volume is; the measuring line 2 and the measuring line 1 share the same common reference electrode G;
(4) carrying out data acquisition on the measuring line 2 to obtain an AM data set, and recording the current when each measuring point supplies power and the acquired potential data of other measuring points as
Matrix fromThe first row to the last row respectively represent the current when the 1# measuring point of the measuring line 2 is supplied with power and the potential values measured from the 1# measuring point to the p # measuring point when the 1# measuring point is supplied with power, the current when the 2# measuring point of the measuring line 2 is supplied with power and the potential values measured from the 1# measuring point to the p # measuring point when the 2# measuring point is supplied with power, and the last row represents the current when the p # measuring point of the measuring line 2 is supplied with power and the potential values measured from the 1# measuring point to the p # measuring point when the p # measuring point is supplied with power;
(5) respectively carrying out normalization processing on the data of the measuring line 1 and the measuring line 2, namely, taking the current when all the electrodes are powered to be 1, and after normalization, respectively acquiring the data of the measuring line 1 and the measuring line 2 as
And
D1’the matrix respectively represents the current when the measuring line 1 is powered on and the potential values measured by the measuring points from 1# to p # when the measuring line 1 is powered on after current normalization from the first row to the last row, the current when the measuring line 1 is powered on and the potential values measured by the measuring points from 1# to p # when the measuring line 2 is powered on, and the current when the measuring line 1 is powered on and the potential values measured by the measuring points from 1# to p # when the measuring line 1 is powered on from the last row; d2’The matrix respectively represents the current when the measuring line 2 is powered by the measuring point 1# after current normalization, the potential values measured by the measuring points 1# to p # when the measuring point 1# is powered, the current when the measuring line 2 is powered and the potential values measured by the measuring points 1# to p # when the measuring line 2 is powered, and the current when the measuring line 2 is powered and the potential values measured by the measuring points 1# to p # when the measuring line 2 is powered from the first row to the last row, so that the current when the measuring line 2 is powered by the measuring line 2 and the potential values measured by the measuring points 1# to p # when the measuring line p # is powered are represented by the last row;
(6) for coincident electrodes C on line 1 and line 2xIn other words, when C isxWhen power is supplied, a loop between the electrode and the infinite electrode B is unchanged, so that the power supply current of the electrode is unchanged when power is supplied on the measuring line 1 and the measuring line 2 respectively, and after the data currents of the two measuring lines are normalized, the superposed electrode C can be usedxWhen power is supplied, voltage data of the two measuring lines are directly merged, and the merged data are recorded as:
(7) if the number of the measuring lines in the measuring area is more than 2, the observation system is arranged according to the step (3), the arrangement principle is that partial electrode coincidence is ensured between the next measuring line and the previous measuring line, and the collected data are combined according to the step (6);
(8) for the data body of a single measuring line, the current I when any electrode on the single measuring line supplies power and the potential difference delta U between any two electrodes can be respectively extractedMNWhen the electrode potential difference between the different measuring lines is extracted, the current I when the power is supplied to the overlapping electrodes is extracted as shown in fig. 8 and 9CxAnd a potential difference DeltaU 'between any two measurement electrodes MN respectively positioned between different measuring lines'MNAs shown in fig. 10;
(9) for delta U extracted in step (8)MN、ΔU'MNAnd performing related resistivity calculation or inversion calculation and the like on the corresponding power supply current I data to obtain the resistivity spatial distribution characteristics in the measuring area.
The invention has the following beneficial effects:
(1) through the coincident electrodes of the front and rear measuring lines in space, two measuring lines which are originally acquired independently provide a bridge for mutual power supply acquisition. By the method, data acquisition of a true three-dimensional electrical observation system requiring more electrode channels can be completed by splicing data of a plurality of two-dimensional electrical observation systems with superposed electrodes; namely, the field three-dimensional electrical prospecting is completed by the existing instrument with few electrode channels.
(2) Compared with the original two-dimensional observation system, the data volume is increased after the synthesis, the potential difference of any two electrodes between every two measuring lines is increased, the resolution between the measuring lines of the inversion result is improved, and the inversion result is more reliable.
Drawings
FIG. 1 is an end-to-end arrangement of a coincident electrode observation system of the present invention;
FIG. 2 is a schematic illustration of a single two-dimensional electrical process line field layout;
FIG. 3 is a schematic diagram of a field layout of a pseudo-three-dimensional electrical observation system composed of a plurality of two-dimensional electrical measurement lines;
FIG. 4 is a schematic diagram of the field arrangement of an S-shaped true three-dimensional electrical observation system;
FIG. 5 is an arrangement of an electrical observation system with any number of electrodes in registration according to the present invention;
FIG. 6 is an observation system of two electrodes each of 7 electrodes, which are overlapped end to end in the embodiment;
FIG. 7 is a schematic diagram of a dual-mode parallel electrical method system arrangement;
FIG. 8 is a schematic diagram of the potential difference between any two electrodes that a single two-dimensional measurement line can extract;
FIG. 9 is a schematic diagram of the potential difference between any two electrodes that can be extracted by two independent wires;
FIG. 10 is a schematic diagram of the potential difference between any two electrodes that can be extracted using the two wires after the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
FIG. 1 is a diagram showing the arrangement of a DC method three-dimensional observation system with coincident electrodes between two measuring lines according to the present invention, and FIG. 2 is a diagram showing a DC method two-dimensional observationThe result of measuring the arrangement of the system electrodes can only be the resistivity profile under the measuring line. FIG. 3 is a diagram of a plurality of two-dimensional direct current observation systems, wherein each measuring line is assigned with three-dimensional coordinates in the same coordinate system during data inversion, but the potential difference delta U between every two measuring lines cannot be extractedMNTherefore, the inversion result lacks the resolution between two survey lines. Fig. 4 shows an electrode arrangement of the true three-dimensional observation system, and the electrode arrangement of fig. 4 can extract the potential difference Δ U between any two electrodesMNThe spatial resolution of the result is higher when the correlation calculation is performed.
The invention discloses a true three-dimensional observation system arrangement and a true three-dimensional data volume synthesis method based on a dual-mode parallel electrical method.
(1) As shown in fig. 6 and 7, a dual-mode network parallel electrical method system is arranged, and there are two-dimensional electrical method measurement lines, the electrode spacing is 1m, 7 electrodes in each measurement line (for example, 7 electrodes are used for explanation, the number of the electrodes is only large, and there is no influence on field construction and data extraction), where the electrode number of measurement line 1 is 11#, 12# … … 15#, C1#, C2#, and the electrode number of measurement line 2 is C1#, C2#, 21#, and 22# … … 25#, the two measurement lines share the same reference electrode G, and the common electrode B is placed at an infinite distance.
(2) And (3) carrying out data acquisition on the measuring line 1 to obtain an AM data set of the measuring line, wherein the measured data are shown in a table 1.
TABLE 1
(3) And (3) carrying out data acquisition on the measuring line 2 to obtain an AM data set of the measuring line, wherein the measured data are shown in a table 2.
TABLE 2
| Electric current | Voltage C1 | | Voltage | 21 | |
|
|
|
| 52.42144 | 0 | 1921.854 | 1055.43 | 610.3267 | 394.6743 | 229.0456 | 149.0915 | |
| 85.32773 | 3165.016 | 0 | 3670.834 | 1899.395 | 1169.765 | 654.6321 | 416.6779 | |
| 91.3042 | 1839.338 | 3895.944 | 0 | 3706.198 | 2092.933 | 1111.706 | 685.2601 | |
| 82.9734 | 934.7017 | 1803.95 | 3336.56 | 0 | 3602.49 | 1717.802 | 1000.376 | |
| 35.90253 | 230.9284 | 446.4395 | 776.1574 | 1496.306 | 0 | 1372.086 | 714.0476 | |
| 55.31402 | 145.2013 | 328.1487 | 585.3313 | 1065.752 | 2092.814 | 0 | 2252.342 | |
| 117.1266 | 42.3941 | 289.0139 | 618.808 | 1183.202 | 2210.495 | 4712.752 | 0 |
(4) The current data in tables 1 and 2 were normalized to give tables 3 and 4, respectively.
TABLE 3
| Electric | Voltage | 11 | |
|
|
|
Voltage C1 | Voltage |
| 1 | 0 | 39.21339 | 23.63782 | 8.062243 | 4.716119 | 2.171479 | 2.33274 | |
| 1 | 39.40975 | 0 | 7.466061 | 14.89572 | 8.497688 | 3.947208 | 4.196978 | |
| 1 | 16.62702 | 34.76672 | 0 | 41.17839 | 19.08275 | 8.210303 | 8.463959 | |
| 1 | 8.70135 | 15.44689 | 7.73048 | 0 | 42.19356 | 16.26147 | 15.68728 | |
| 1 | 5.303663 | 8.960824 | 25.58077 | 42.20071 | 0 | 33.53863 | 27.98688 | |
| 1 | 2.726609 | 4.356963 | 10.3438 | 16.33063 | 33.47316 | 0 | 41.47335 | |
| 1 | 2.884169 | 4.604871 | 10.19031 | 15.77574 | 28.00084 | 41.43101 | 0 |
TABLE 4
| Electric current | Voltage C1 | | Voltage | 21 | |
|
|
|
| 1 | 0 | 36.6616 | 20.13356 | 11.64269 | 7.52887 | 4.369312 | 2.844094 | |
| 1 | 37.09246 | 0 | 43.02041 | 22.26 | 13.70908 | 7.671974 | 4.883265 | |
| 1 | 20.14516 | 42.66993 | 0 | 40.59175 | 22.92264 | 12.17585 | 7.505242 | |
| 1 | 11.26508 | 21.74131 | 40.21241 | 0 | 43.41741 | 20.70304 | 12.05658 | |
| 1 | 6.432091 | 12.43476 | 21.61846 | 41.67688 | 0 | 38.21697 | 19.8885 | |
| 1 | 2.625036 | 5.93247 | 10.58197 | 19.26731 | 37.83514 | 0 | 40.71919 | |
| 1 | 0.361951 | 2.467534 | 5.283241 | 10.10191 | 18.8727 | 40.2364 | 0 |
The data of tables 3 and 4 were combined to give table 5.
TABLE 5
The two separately acquired two-dimensional electrographic data is combined into a true three-dimensional data volume by coincident electrodes C1 and C2. As shown in fig. 8, the two-dimensional observation system of the original measuring line can only extract the potential difference between any two electrodes on the measuring line, and only extract the potential difference between any two electrodes in each measuring line by using the mode that a plurality of two-dimensional measuring lines give three-dimensional coordinates, and the data has no resolution between the measuring lines, as shown in fig. 9. However, according to the method provided by the present invention, as shown in fig. 10, not only the potential difference between any two electrodes in each measurement line itself can be extracted, but also the potential difference between any two electrodes between two measurement lines can be extracted, as shown in the 6 th and 7 th rows in table 5, the potential difference between any two electrodes between two measurement lines can be extracted, and then the related inversion calculation is performed, so that the resolution between two measurement lines is improved.
The invention has no relation between the total number of the electrodes and the number of the superposed electrodes, and the superposed electrodes are not fixed as the head and tail electrodes of the measuring line and can be any number of electrodes on the measuring line.
In a word, the invention establishes the connection of the independent measuring lines by taking the superposed electrodes among the measuring lines as a bridge, and provides an electrode observation system arrangement mode for acquiring three-dimensional electrical prospecting data by using relatively few electrodes; the method for synthesizing the electrical data of the two-dimensional observation system into the electrical data volume of the three-dimensional observation system is provided, the potential difference of any two electrodes between every two measuring lines is increased, the resolution between the measuring lines of the inversion result is improved, and the inversion result is more reliable. The method has an important effect on improving the field three-dimensional electrical method data acquisition efficiency, is of great help to improve the resolution of the three-dimensional electrical method data processing result, and has a good application prospect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. A real three-dimensional observation system arrangement and real three-dimensional data volume synthesis method based on a dual-mode parallel electrical method is characterized by comprising the following steps:
(1) arranging a plurality of parallel electrical method measuring lines of a two-dimensional or three-dimensional observation system in a detection area, wherein partial electrodes are overlapped among the measuring lines, namely overlapping electrodes are arranged among the measuring lines;
the two-dimensional or three-dimensional dual-mode parallel electrical observation system comprises: the device comprises a public power supply electrode B, a public reference electrode G and a plurality of groups of isolated electrode groups, wherein p measuring points are provided in total, each measuring point is provided with one group of isolated electrode groups, the public power supply electrode B is placed at an infinite distance, the infinite distance is defined to be 3-5 times of the length of a measuring line, and the public reference electrode G is placed at any position; each group of isolation electrode groups comprises a power supply electrode and a measuring electrode, and the electrode distance between each group of isolation electrodes is a;
the electrodes partially overlapped among the measuring lines are any one or more electrodes on two or more measuring lines;
the multiple measuring lines in the measuring area are numbered according to measuring line 1 and measuring line 2 … … respectively;
(2) data acquisition is carried out on the measuring line 1 to obtain an AM single-point power supply field power supply data set, and the current and other measuring point acquisition potential data when power is supplied to each measuring point are recorded as
The matrix represents the current when the 1# measuring point of the measuring line 1 is supplied with power, the potential values measured from the 1# measuring point to the p # measuring point when the 1# measuring point is supplied with power, the current when the 2# measuring point of the measuring line 1 is supplied with power and the potential values measured from the 1# measuring point to the p # measuring point when the 2# measuring point is supplied with power from the first row to the last row respectivelyThe current when the p # measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the p # measuring point supplies power are shown;
(3) arranging a measuring line 2 in the measuring area, wherein the measuring line 2 and the measuring line 1 are provided with X coincident electrodes respectively C1、C2……CxThe X superposed electrodes are any X of p electrodes in the measuring line 1, and the more the number of the superposed electrodes is, the more complete the synthesized three-dimensional data volume is; the measuring line 2 and the measuring line 1 share the same common reference electrode G;
(4) data acquisition is carried out on the measuring line 2 to obtain an AM single-point power supply field power supply data set, and the current and other measuring point acquisition potential data when power is supplied to each measuring point are recorded as
The matrix represents the current when the measuring line 2 is powered by the measuring point 1# and the potential values measured by the measuring point 1# to the measuring point p # from the power supply of the measuring line 2 from the first row to the last row respectively, the current when the measuring line 2 is powered by the measuring point 2# and the potential values measured by the measuring point 1# to the measuring point p # from the power supply of the measuring line 2 from the last row;
(5) respectively carrying out normalization processing on the data of the measuring line 1 and the measuring line 2, namely, taking the current when all the electrodes are powered to be 1, and after normalization, respectively acquiring the data of the measuring line 1 and the measuring line 2 as
And
D1’the matrix respectively represents the current when the 1# measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the 1# measuring point supplies power after current normalization from the first row to the last row, the current when the 2# measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the 2# measuring point supplies power, so that the current when the p # measuring point of the measuring line 1 supplies power and the potential values measured from the 1# measuring point to the p # measuring point when the p # measuring point supplies power; measuringThe current of the line 2 during power supply of the 1# measuring point, the potential values measured from the 1# measuring point to the p # measuring point during power supply of the 1# measuring point, the current of the line 2 during power supply of the 2# measuring point, and the potential values measured from the 1# measuring point to the p # measuring point during power supply of the 2# measuring point are represented by the last line from the current of the line 2 during power supply of the p # measuring point and the potential values measured from the 1# measuring point to the p # measuring point during power supply of the p # measuring point;
(6) for coincident electrodes C on line 1 and line 2xIn other words, when C isxWhen power is supplied, a loop between the electrode and the infinite electrode B is unchanged, so that the power supply current of the electrode is unchanged when power is supplied on a measuring line 1 and a measuring line 2 respectively, and after the data currents of the two measuring lines are normalized, a superposed electrode C is obtainedxWhen power is supplied, the voltage data of the two measuring lines are directly merged, and the merged data is recorded as
D1’2’The matrix respectively represents the current when the measuring point 1# of the measuring line 1 supplies power, the potential values measured from the measuring point 1# to the measuring point p # when the measuring point 1# supplies power, the current when the measuring point 2# of the measuring line 1 supplies power, the potential values measured from the measuring point 1# to the measuring point p # when the measuring point 2# supplies power, the current when the measuring point C1# of the measuring line 1 supplies power, the potential values measured from the measuring point 1# to the measuring point p # when the measuring point C1# supplies power, and the current when the measuring point p # of the measuring line 2 supplies power and the potential values measured from the measuring point 1# to the measuring point p # when the measuring point p # supplies power;
(7) if the number of the measuring lines in the measuring area is more than 2, the observation system is arranged according to the step (3), the arrangement principle is that partial electrode coincidence is ensured between the next measuring line and the previous measuring line, and the collected data are combined according to the step (6);
(8) for a data body of a single measuring line, the current I when any electrode on the single measuring line is powered and the potential difference delta U between any two measuring electrodes MN are respectively extractedMNIf the electrode potential difference between different measuring lines is extracted, the current I when the superposed electrodes supply power is extractedCxAnd a potential difference DeltaU 'between any two measurement electrodes MN respectively positioned between different measuring lines'MN；
(9) For delta U extracted in step (8)MN、ΔU'MNAnd carrying out related inversion calculation on the current I and the corresponding power supply current to obtain the resistivity spatial distribution characteristics in the measuring area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575441.0A CN114152987B (en) | 2021-12-21 | 2021-12-21 | True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575441.0A CN114152987B (en) | 2021-12-21 | 2021-12-21 | True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114152987A true CN114152987A (en) | 2022-03-08 |
| CN114152987B CN114152987B (en) | 2022-10-28 |
Family
ID=80451700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111575441.0A Active CN114152987B (en) | 2021-12-21 | 2021-12-21 | True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114152987B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994775A (en) * | 2022-08-08 | 2022-09-02 | 山东大学 | Double-line detection device, system and array acquisition method for cross-well induced polarization measurement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124446A1 (en) * | 2008-04-10 | 2009-10-15 | 中国石油集团东方地球物理勘探有限责任公司 | Three dimensional small bins electromagnetic consecutive array data acquisition method |
| WO2011043688A1 (en) * | 2009-10-06 | 2011-04-14 | Федеральное Государственное Унитарное Предприятие "Сибирский Научно-Исследовательский Институт Геологии, Геофизики И Минерального Сырья" | Method for geo-electrical prospection |
| CN106443795A (en) * | 2016-07-21 | 2017-02-22 | 安徽惠洲地质安全研究院股份有限公司 | Method for deducting and synthesizing AM data into ABM data by means of dual mode network parallel electrical method |
| CN106443794A (en) * | 2016-08-30 | 2017-02-22 | 安徽惠洲地质安全研究院股份有限公司 | Three-dimensional parallel electrical prospecting observation system and geological body exploration method |
| CN106772620A (en) * | 2016-12-25 | 2017-05-31 | 中南大学 | Cross three-dimensional electrical prospecting method |
| CN107045147A (en) * | 2017-04-05 | 2017-08-15 | 浙江省水利河口研究院 | A kind of multidimensional detecting device and method for detecting river course solution cavity |
| JP6826743B1 (en) * | 2019-11-26 | 2021-02-10 | 自然資源部第一海洋研究所 | High spatial resolution intersection detection method based on composite electrodes |
-
2021
- 2021-12-21 CN CN202111575441.0A patent/CN114152987B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124446A1 (en) * | 2008-04-10 | 2009-10-15 | 中国石油集团东方地球物理勘探有限责任公司 | Three dimensional small bins electromagnetic consecutive array data acquisition method |
| WO2011043688A1 (en) * | 2009-10-06 | 2011-04-14 | Федеральное Государственное Унитарное Предприятие "Сибирский Научно-Исследовательский Институт Геологии, Геофизики И Минерального Сырья" | Method for geo-electrical prospection |
| CN106443795A (en) * | 2016-07-21 | 2017-02-22 | 安徽惠洲地质安全研究院股份有限公司 | Method for deducting and synthesizing AM data into ABM data by means of dual mode network parallel electrical method |
| CN106443794A (en) * | 2016-08-30 | 2017-02-22 | 安徽惠洲地质安全研究院股份有限公司 | Three-dimensional parallel electrical prospecting observation system and geological body exploration method |
| CN106772620A (en) * | 2016-12-25 | 2017-05-31 | 中南大学 | Cross three-dimensional electrical prospecting method |
| CN107045147A (en) * | 2017-04-05 | 2017-08-15 | 浙江省水利河口研究院 | A kind of multidimensional detecting device and method for detecting river course solution cavity |
| JP6826743B1 (en) * | 2019-11-26 | 2021-02-10 | 自然資源部第一海洋研究所 | High spatial resolution intersection detection method based on composite electrodes |
Non-Patent Citations (3)
| Title |
|---|
| CHANG LIU 等: "Study on Deformation and Failure Characteristics of Weak Cemented Roof in Shallow and Extra Thick Coal Seam Mining", 《RESEARCH SQUARE》 * |
| 杨海涛 等: "双模网络并行电法探水技术指导矿井水害防治", 《煤炭技术》 * |
| 邱占林 等: "三维改进并行电法福建小煤矿底板富水区探测", 《山东煤炭科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994775A (en) * | 2022-08-08 | 2022-09-02 | 山东大学 | Double-line detection device, system and array acquisition method for cross-well induced polarization measurement |
| CN114994775B (en) * | 2022-08-08 | 2022-11-15 | 山东大学 | Double-line detection device, system and array acquisition method for cross-well induced polarization measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114152987B (en) | 2022-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110187398B (en) | Multi-electrode system detection method for searching target body between wells | |
| US11892587B2 (en) | Distributed three-dimensional (3D) induced polarization (IP) data acquisition and processing device and method | |
| US20230273336A1 (en) | Data acquisition method of three-dimensional high-density resistivity based on arbitrary electrode distribution | |
| CN111856589A (en) | Three-dimensional imaging method and system for ground surface comprehensive geophysical prospecting | |
| US11960048B2 (en) | Three-dimensional electrical resistivity tomography method and system | |
| CN106125147B (en) | Orientation electric logging device and its measuring method based on electrical method of network concurrency technology | |
| CN114152987B (en) | True three-dimensional observation system arrangement and true three-dimensional data volume synthesis method based on dual-mode parallel electrical method | |
| CN110007357B (en) | Aviation TEM and aviation MT joint inversion method | |
| CN105467460B (en) | electromagnetic exploration method and device | |
| Falco et al. | Fracture characterisation using geoelectric null-arrays | |
| CN110361792A (en) | A kind of fusion of geophysical data and imaging method, medium and equipment | |
| CN111812730A (en) | Resistivity data fusion three-dimensional imaging method and system for landslide detection | |
| CN113960532B (en) | Microseism positioning method based on secondary positioning calculation of virtual source | |
| CN108873073B (en) | A kind of across hole resistivity tomography method of three-dimensional based on electrical method of network concurrency | |
| CN108732628B (en) | High-density electrical method pipeline detection observation method and system along pipeline trend | |
| Ge et al. | Reverse travel time imaging of microseismic location | |
| HUANG et al. | A study on FEM modeling of anomalies of 3‐D high‐density E‐SCAN resistivity survey | |
| CN206348292U (en) | Polluted Soil detection arrangement of measuring-line structure based on three-dimensional high-density resistivity method | |
| CN114114431B (en) | Small polar distance potential extraction method based on dual-mode parallel electrical method | |
| CN110058318B (en) | One-dimensional direction correction method of natural electric field based on measurement electrode coordinates | |
| CN113552635B (en) | Three-dimensional advanced forecasting method and system for fixed-source transient electromagnetic data fusion tunnel | |
| CN113030952A (en) | Space positioning and color matching enhancement target positioning method for geophysical prospecting pulse wave data | |
| CN111257947B (en) | Cross-hole resistivity karst cave detection method | |
| CN113608271A (en) | Geological exploration data processing method and system | |
| CN114609680A (en) | Method for simultaneously measuring polarization field and induction field based on electric source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |