CN107748391B - Observation method and system for enhancing signal acquisition by controllable source electromagnetic method - Google Patents
Observation method and system for enhancing signal acquisition by controllable source electromagnetic method Download PDFInfo
- Publication number
- CN107748391B CN107748391B CN201711237431.XA CN201711237431A CN107748391B CN 107748391 B CN107748391 B CN 107748391B CN 201711237431 A CN201711237431 A CN 201711237431A CN 107748391 B CN107748391 B CN 107748391B
- Authority
- CN
- China
- Prior art keywords
- rxu
- receiving box
- auxiliary receiving
- measuring points
- auxiliary
- 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.)
- Active
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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/083—Controlled source electromagnetic [CSEM] surveying
-
- 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
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention belongs to the technical field of geophysical field exploration and acquisition methods, and discloses an observation method and a system for enhancing a controllable source electromagnetic method acquisition signal, wherein electrode staggering is utilized to double the electrode distance of each observation channel, and an auxiliary receiving box RXU-3E-1 and an auxiliary receiving box RXU-3E-2 only observe odd measuring points 1, 3, 5, 7, 9 and 11; the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 only observe even measuring points 2, 4, 6, 8, 10 and 12; the enhancement of the acquisition signals of the controllable source electromagnetic method is realized. The invention realizes the enhancement of electromagnetic method outdoor channel acquisition signals by electrode interleaving on the basis of the traditional electromagnetic method field exploration acquisition method, thereby achieving the purpose of improving signal quality; the invention can be applied to any electromagnetic field exploration method with electric channel observation.
Description
Technical Field
The invention belongs to the technical field of geophysical field exploration and acquisition methods, and particularly relates to an observation method and system for enhancing a signal acquired by a controllable source electromagnetic method.
Background
When the current electromagnetic method field exploration is used for data acquisition, the current electric channel acquisition technology usually adopts an observation mode that electrodes are arranged in sequence, and when the distance between measuring points is smaller (not more than 40 meters), the electrode distance is small, signals are weak, interference is easy, and high-quality electric channel acquisition signals are difficult to acquire.
In summary, the problems of the prior art are:
in electromagnetic prospecting, when the design distance of adjacent physical observation points is relatively short, electric field acquisition signals are weak and errors are large, so that the accuracy of data processing and interpretation in the later stage of electromagnetic prospecting is seriously affected. If the enhancement of the electric field acquisition signals can be realized on the basis of not changing the original design physical observation points, and the quality of the acquisition signals is improved, the accuracy of processing and explaining the electromagnetic method exploration data can be greatly improved, and the electromagnetic method exploration can be promoted to be applied to different fields.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides an observation method and system for enhancing a signal acquired by a controllable source electromagnetic method. Compared with the traditional electromagnetic method field acquisition method, the method increases the electrode distance by one time through electrode staggering on the basis of not changing the original design point distance, effectively enhances the strength of field acquisition signals and acquires high-quality electric channel acquisition signals.
The invention is realized in such a way that the method for observing the signal collected by the enhanced controllable source electromagnetic method is realized,
the auxiliary receiving box RXU-3E-1 and the auxiliary receiving box RXU-3E-2 are respectively connected with the first solid triangle points through electrode wires, so that the electrode distances of the observed odd measuring points 1, 3, 5, 7, 9 and 11 are doubled;
the electrode distances of the observed even number measuring points 2, 4, 6, 8, 10 and 12 are doubled by utilizing the connection of the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 with the second solid triangle points through electrode wires respectively; thereby realizing the enhancement of the signal collected by the controllable source electromagnetic method.
Further, the multifunctional receiving box RXU-V8 controls the observed measuring points of the auxiliary receiving box RXU-3E-1, the auxiliary receiving box RXU-3E-2 and the auxiliary receiving box RXU-3E-3 by setting the measuring points corresponding to each collecting channel of each instrument in the collecting parameters.
Another object of the present invention is to provide an observation system for enhancing a signal collected by a controllable source electromagnetic method, comprising:
the multifunctional receiving box RXU-V8, the auxiliary receiving box RXU-3E-1, the auxiliary receiving box RXU-3E-2 and the auxiliary receiving box RXU-3E-3 are arranged;
the auxiliary receiving box RXU-3E-1 and the auxiliary receiving box RXU-3E-2 are respectively connected with the first solid triangle points through electrode wires, so that the electrode distances of the observed odd measuring points 1, 3, 5, 7, 9 and 11 are doubled; the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 are respectively connected with the second solid triangle points through electrode wires, so that the electrode distances of the observed even number measuring points 2, 4, 6, 8, 10 and 12 are doubled.
Further, the multifunction receiver boxes RXU-V8 are synchronized with the auxiliary receiver boxes by GPS.
The invention has the advantages and positive effects that:
according to the invention, on the basis of a traditional electromagnetic method field exploration acquisition method, each electrode distance is doubled by electrode interleaving, and the field acquisition signal intensity is doubled, so that the quality of the field acquisition signal is improved; the invention can be applied to any electromagnetic field exploration method with electric channel observation.
Compared with the existing electromagnetic method field acquisition technology, the invention has the characteristics that the receiving and transmitting distance is doubled on the basis of not changing the original observation point distance, and high-quality acquisition data is easy to acquire.
Drawings
Fig. 1 is a schematic diagram of an observation system for enhancing a signal collected by a controllable source electromagnetic method according to an embodiment of the present invention.
In the figure: (1) a multifunctional receiving box RXU-V8; (2) an auxiliary receiving box RXU-3E-1; (3) an auxiliary receiving box RXU-3E-2; (4) an auxiliary receiving box RXU-3E-3; (5), a first solid triangle point; (6), second solid triangle points.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the prior art, adjacent physical observation points in electromagnetic method exploration are closer in distance, and electric field acquisition signals are weak and have large errors.
The principle of application of the invention is described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the observation system for enhancing the signal acquisition by the controllable source electromagnetic method provided by the embodiment of the invention comprises a multifunctional receiving box RXU-V8 (1), an auxiliary receiving box RXU-3E-1 (2), an auxiliary receiving box RXU-3E-2 (3) and an auxiliary receiving box RXU-3E-3 (4);
the auxiliary receiving box RXU-3E-1 (2) and the auxiliary receiving box RXU-3E-2 (3) are respectively connected with the first solid triangle point (5) through electrode wires, so that the electrode distances of the observed odd-numbered measuring points 1, 3, 5, 7, 9 and 11 are doubled; the multifunctional receiving box RXU-V8 (1) and the auxiliary receiving box RXU-3E-3 (4) are respectively connected with the second solid triangle point (6) through electrode wires, so that the electrode distance of the observed even number measuring points 2, 4, 6, 8, 10 and 12 is doubled.
The invention is further described below in connection with 12 acquisition lanes of an acquisition array as an example.
The auxiliary receiving box RXU-3E-1 (2), the multifunctional receiving box RXU-V8 (1), the auxiliary receiving box RXU-3E-2 (3) and the auxiliary receiving box RXU-3E-3 (4) form an acquisition arrangement;
wherein the auxiliary receiving box RXU-3E-1 controls the channels Ex1, ex2 and Ex3 through electrode wires, and observes the measuring points 1, 3 and 5; the multifunctional receiving box RXU-V8 controls the channels Ex4, ex5 and Ex6 through electrode wires, and observes measuring points 2, 4 and 6; the auxiliary receiving box RXU-3E-2 controls the channels Ex7, ex8 and Ex9 through electrode wires, and observes measuring points 7, 9 and 11; the auxiliary receiving box RXU-3E-3 controls the channels Ex10, ex11 and Ex12 through electrode wires, and observes the measuring points 8, 10 and 12;
the multifunctional receiving box RXU-V8 and the auxiliary receiving boxes (RXU-3E-1, RXU-3E-2 and RXU-3E-3) are synchronized through GPS;
the multifunctional receiving box RXU-V8 controls the measuring points observed by the auxiliary receiving box RXU-3E-1, the auxiliary receiving box RXU-3E-2 and the auxiliary receiving box RXU-3E-3 by setting the measuring points corresponding to each collecting channel of each instrument in the collecting parameters.
The invention mainly uses electrode staggering to enable different receiving boxes to observe odd measuring points or even measuring points to realize the enhancement of the acquisition signals of the controllable source electromagnetic method.
The observation method for enhancing the signal acquisition by the controllable source electromagnetic method provided by the embodiment of the invention comprises the following steps: using the auxiliary receiving box RXU-3E-1 and the auxiliary receiving box RXU-3E-2 to observe only odd measuring points 1, 3, 5, 7, 9 and 11; the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 only observe even measuring points 2, 4, 6, 8, 10 and 12; therefore, the receiving and transmitting distance of each channel is doubled, the strength of the acquired signals is enhanced, the quality of the acquired signals is improved, and the enhancement of the acquired signals by a controllable source electromagnetic method is realized.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (1)
1. An observation method for enhancing the signal collected by a controllable source electromagnetic method is characterized in that the observation method for enhancing the signal collected by the controllable source electromagnetic method,
the auxiliary receiving box RXU-3E-1 and the auxiliary receiving box RXU-3E-2 are respectively connected with the first solid triangle points through electrode wires, so that the electrode distances of the observed odd measuring points 1, 3, 5, 7, 9 and 11 are doubled;
the electrode distances of the observed even number measuring points 2, 4, 6, 8, 10 and 12 are doubled by utilizing the connection of the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 with the second solid triangle points through electrode wires respectively;
the multifunctional receiving box RXU-V8 controls the measuring points observed by the auxiliary receiving box RXU-3E-1, the auxiliary receiving box RXU-3E-2 and the auxiliary receiving box RXU-3E-3 by setting the measuring points corresponding to each acquisition channel of each instrument in acquisition parameters;
the observation system for collecting signals by the enhanced controllable source electromagnetic method based on the observation method for collecting signals by the enhanced controllable source electromagnetic method comprises the following components:
the multifunctional receiving box RXU-V8, the auxiliary receiving box RXU-3E-1, the auxiliary receiving box RXU-3E-2 and the auxiliary receiving box RXU-3E-3;
the auxiliary receiving box RXU-3E-1 and the auxiliary receiving box RXU-3E-2 are respectively connected with the first solid triangle points through electrode wires, so that the electrode distances of the observed odd measuring points 1, 3, 5, 7, 9 and 11 are doubled; the multifunctional receiving box RXU-V8 and the auxiliary receiving box RXU-3E-3 are respectively connected with the second solid triangle points through electrode wires, so that the electrode distances of the observed even measuring points 2, 4, 6, 8, 10 and 12 are doubled;
the multifunction receiver boxes RXU-V8 are synchronized with the auxiliary receiver boxes by GPS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237431.XA CN107748391B (en) | 2017-11-30 | 2017-11-30 | Observation method and system for enhancing signal acquisition by controllable source electromagnetic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711237431.XA CN107748391B (en) | 2017-11-30 | 2017-11-30 | Observation method and system for enhancing signal acquisition by controllable source electromagnetic method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107748391A CN107748391A (en) | 2018-03-02 |
| CN107748391B true CN107748391B (en) | 2023-09-22 |
Family
ID=61250100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711237431.XA Active CN107748391B (en) | 2017-11-30 | 2017-11-30 | Observation method and system for enhancing signal acquisition by controllable source electromagnetic method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107748391B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1518819A1 (en) * | 1987-06-01 | 1989-10-30 | Всесоюзный научно-исследовательский и проектный институт галургии | Method of electric probing |
| CN101620277A (en) * | 2009-07-28 | 2010-01-06 | 甘肃铁道综合工程勘察院有限公司 | Controlled source audio-frequency magnetotelluric (CSAMT) double-transmitting multi-receiving data acquiring system and CSAMT double-transmitting multi-receiving data acquiring method |
| CN104020496A (en) * | 2014-06-27 | 2014-09-03 | 吉林大学 | Ground controlled source magnetotelluric method based on axial collinear manner |
| CN105866849A (en) * | 2016-04-20 | 2016-08-17 | 长江大学 | Efficient field collecting method and system achieved through spectrum induced polarization |
| CN106646632A (en) * | 2017-01-15 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Controlled source electromagnetic method of detecting oil and gas reservoir |
| CN207799099U (en) * | 2017-11-30 | 2018-08-31 | 长江大学 | A kind of observation device of enhancing controllable source electromagnetic method acquisition signal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556340B (en) * | 2008-04-10 | 2011-08-03 | 中国石油集团东方地球物理勘探有限责任公司 | Three-dimensional small surface element magnetotelluric continuous array data acquisition method |
-
2017
- 2017-11-30 CN CN201711237431.XA patent/CN107748391B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1518819A1 (en) * | 1987-06-01 | 1989-10-30 | Всесоюзный научно-исследовательский и проектный институт галургии | Method of electric probing |
| CN101620277A (en) * | 2009-07-28 | 2010-01-06 | 甘肃铁道综合工程勘察院有限公司 | Controlled source audio-frequency magnetotelluric (CSAMT) double-transmitting multi-receiving data acquiring system and CSAMT double-transmitting multi-receiving data acquiring method |
| CN104020496A (en) * | 2014-06-27 | 2014-09-03 | 吉林大学 | Ground controlled source magnetotelluric method based on axial collinear manner |
| CN105866849A (en) * | 2016-04-20 | 2016-08-17 | 长江大学 | Efficient field collecting method and system achieved through spectrum induced polarization |
| CN106646632A (en) * | 2017-01-15 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Controlled source electromagnetic method of detecting oil and gas reservoir |
| CN207799099U (en) * | 2017-11-30 | 2018-08-31 | 长江大学 | A kind of observation device of enhancing controllable source electromagnetic method acquisition signal |
Non-Patent Citations (4)
| Title |
|---|
| Application of CSAMT Method to Water Resources Recognition in High Urbanized Areas;L Sito等;《73rd EGEA Conference and Exhibition incorporating SPE EUROPEC 2011》;第238页 * |
| 可控源音频大地电磁法若干方法技术问题的探讨;张国鸿;李仁和;张良敏;《安徽地质》;第19卷(第02期);第119-123页 * |
| 蔡少峰 ; 李慧滨 ; .《CSAMT"双发多收"工作模式的建立及应用效果》.《工程地球物理学报》.2009,第6卷(第S1期),第21-24页. * |
| 袁桂琴等.《地球物理勘查技术与应用研究》.《地质学报》.2011,第85卷(第11期),第1744-1805期. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107748391A (en) | 2018-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101666227B (en) | Method for acquiring natural gamma spectra | |
| CN203275647U (en) | Multichannel signal amplitude phase difference measuring system | |
| CN102928873B (en) | Method for positioning ground micro-seismic based on four-dimensional energy focusing | |
| CN104375191A (en) | Magnetotelluric data acquisition system and method | |
| CN108195937A (en) | A kind of damage probability imaging method based on guided wave | |
| CN204632901U (en) | A kind of cacheable ground exploring radar antenna fixture | |
| CN101853730A (en) | Transient electromagnetic splay transmitting and receiving coil | |
| CN104077257A (en) | FPGA (Field Programmable Gate Array) based multi-channel data transmission synchronization delay measurement method and system | |
| CN102749655A (en) | Method for removing electromagnetic interference (EMI) signal by transient electromagnetic instrument background field guidance frequency-selecting technology | |
| CN105510664A (en) | Automatic setting method of digital oscilloscope | |
| CN107748391B (en) | Observation method and system for enhancing signal acquisition by controllable source electromagnetic method | |
| CN104808057A (en) | Acousto-optic real-time signal analyzer based on asynchronous detection | |
| CN106597098B (en) | A kind of data processing method and device of spectrum analyzer | |
| CN207799099U (en) | A kind of observation device of enhancing controllable source electromagnetic method acquisition signal | |
| CN104155696A (en) | Distributed time-domain induced polarization receiving device and realizing method | |
| CN102937019A (en) | Weak signal generation device | |
| CN109596173A (en) | The building safety monitoring information collecting device and method of time-sharing multiplex | |
| CN104407276A (en) | Signal acquisition device for laboratory partial discharge tests | |
| CN111624668B (en) | Harmonic correction method for frequency division electrical method | |
| CN103376956A (en) | Position detection method and device | |
| CN105572466A (en) | Train noise weighting current testing and processing method | |
| CN101860402A (en) | Parallel data transmission method for reducing EMI | |
| CN205427174U (en) | Electric energy measurement instrumental error measuring device | |
| CN111010252A (en) | Method for conducting broadband subsection guiding shielding on digital transmission equipment | |
| CN204790527U (en) | Based on infrared ray formation of image non -contact braced chain wherein point control ware |
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 |