CN107102357A - Eliminate the Processing Seismic Data and device of mono-tone interference - Google Patents
Eliminate the Processing Seismic Data and device of mono-tone interference Download PDFInfo
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- CN107102357A CN107102357A CN201610098901.8A CN201610098901A CN107102357A CN 107102357 A CN107102357 A CN 107102357A CN 201610098901 A CN201610098901 A CN 201610098901A CN 107102357 A CN107102357 A CN 107102357A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
Abstract
The invention discloses a kind of Processing Seismic Data and device for eliminating mono-tone interference.This method includes：Step 101, FFT is carried out to the time domain earthquake record containing mono-tone interference, obtains corresponding frequency domain earthquake record；Step 102, in the frequency domain earthquake record, the frequency spectrum at the single-frequency is replaced with the frequency spectrum near the single-frequency；Step 103, the time domain earthquake record after inverse FFT conversion, the mono-tone interference that is eliminated is carried out to the frequency domain earthquake record after replacement.Using the present invention, the single-frequency noise of such as 50Hz Hz noises in several ten million even more than one hundred million time domain earthquake records can be quickly eliminated, and does not damage useful signal.
Description
Technical field
The present invention relates to geophysical exploration seism processing field, eliminate single more particularly, to one kind
The Processing Seismic Data and a kind of seism processing device of elimination mono-tone interference of frequency interference.
Background technology
In petroleum exploration and development and neighbouring cities and towns, because power network, drilling well, production facilities and other industry are set
Apply intensive, there is substantial amounts of single-frequency noise, particularly 50Hz Hz noises, its frequency band range is provided with earthquake
The dominant frequency band overlapping ranges and interfering energy of material are strong, have had a strong impact on superposition and the migration processing quality of data,
It is highly detrimental to follow-up data interpretation and hydrocarbon exploration.Particularly in the high density earthquake for thering is high-voltage line to pass through
The exploratory area of survey acquisition, whole arrangement is recorded sometimes is covered by 50Hz industry disturbances.Therefore, earthquake note is removed
Single-frequency noise (particularly 50Hz Hz noises) in record, it has also become can not be ignored in seism processing
One problem.
In the prior art, it is typically to be filtered in frequency domain using trapper in order to suppress 50Hz Hz noises,
This method has also damaged the 50Hz compositions in useful signal while 50Hz interference signals are suppressed, so as to drop
The low quality of seismic data.In order to overcome the shortcomings of the above method, Li Wenyan etc. (Li Wenyan, Niu Yanliang,
Wu Ming China eliminates the seism processing new method that 50Hz disturbs ripple, grand celebration petroleum geology and exploitation, 2001
(10)：67-68) propose the denoising method based on Cross-Correlation Theory；(Hu Wei, the small big pressures of Lv such as Hu Wei
The improvement and application physical prospectings of the cosine approach of Hz noise are visited with changing in seismic data processed, 2005,29 (6)：
537-539) cosine approach is improved in terms of frequency, phase and amplitude 3, accurately picked up
50Hz man-made noise is taken；(intelligence is quick, Zhang Guangzhong, Zhang Xiaowen, and Xue Hai, which flies compactings 50Hz, to be done for the quick grade of intelligence
Disturb Processing Seismic Data coal field geologies and the exploration, 2010,38 (6) of ripple:71-74) using the method for iteration
Amplitude response and phase characteristic to 50Hz interference signals have carried out accurate statistics, so as to suppress well
50Hz Hz noises, are effectively improved the fidelity of data processing.
In reality, because the current strength of high-voltage line is big, except the receiving point under high-voltage line collects 50Hz
Hz noise record is outer, and the receiving point under neighbouring high-voltage line can equally collect 50Hz Hz noises, although
Interfering energy weakens with the distance away from high-voltage line, but still the quality of different degrees of influence earthquake record.
Therefore, generally require to have isolated 50Hz power frequencies in several ten million even several hundred million earthquake records from an exploratory area
The record of interference simultaneously suppresses 50Hz Hz noises therein, and because the amount of calculation of the above method is larger, because
This total treating capacity is huge and processing speed is slow, it is difficult to satisfactory.
The content of the invention
It is smaller and do not influence the elimination single-frequency of useful signal (such as 50Hz works that the present invention proposes a kind of amount of calculation
Frequently the method for interference).The invention also provides corresponding device.
According to an aspect of the invention, it is proposed that a kind of Processing Seismic Data for eliminating mono-tone interference, should
Method includes：Step 101, FFT is carried out to the time domain earthquake record containing mono-tone interference, obtained pair
The frequency domain earthquake record answered；Step 102, in the frequency domain earthquake record, replaced with the frequency spectrum near the single-frequency
Frequency spectrum at the single-frequency；Step 103, inverse FFT conversion is carried out to the frequency domain earthquake record after replacement, obtained
Eliminate the time domain earthquake record after the mono-tone interference.
According to another aspect of the invention, it is proposed that a kind of seism processing device for eliminating mono-tone interference,
The device includes：FFT unit, for carrying out FFT changes to the time domain earthquake record containing mono-tone interference
Change, obtain corresponding frequency domain earthquake record；Frequency spectrum replacement unit, should for being used in the frequency domain earthquake record
Frequency spectrum near single-frequency replaces the frequency spectrum at the single-frequency；Inverse FFT converter unit, for the frequency domain after replacement
Earthquake record carries out the time domain earthquake record after inverse FFT conversion, the mono-tone interference that is eliminated.
In the present invention, for the time domain earthquake record containing single-frequency (such as 50Hz power frequencies), by using the list
Frequency spectrum near frequency, which is substituted, to be disturbed the frequency spectrum at the serious single-frequency to eliminate the mono-tone interference, processing speed
Soon and do not damage useful signal.Verify through a large amount of emulation experiments and on the spot, can effectively be eliminated using the present invention
Mono-tone interference.
Brief description of the drawings
By the way that exemplary embodiment of the invention is described in more detail with reference to accompanying drawing, of the invention is above-mentioned
And other purposes, feature and advantage will be apparent, wherein, in exemplary embodiment of the invention
In, identical reference number typically represents same parts.
Fig. 1 shows the Processing Seismic Data of elimination mono-tone interference according to an embodiment of the invention
Flow chart.
Fig. 2 shows the ground of the elimination 50Hz Hz noises of an example according to an embodiment of the invention
The schematic diagram of seismic data processing method.
Fig. 3 (a) shows the single shot record in certain work area；Fig. 3 (b)~(d) is respectively illustrated using existing
Trapper, single-frequency wave filter and the present invention single shot record progress is handled obtain single shot record contrast
Figure.
Fig. 4 (a)~(d) shows original single shot record and the processing of application existing trapper, using existing
The schematic diagram of single-frequency filtering process, the frequency spectrum of the single shot record each obtained using the present invention.
Embodiment
The preferred embodiment of the present invention is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing
The preferred embodiment of the present invention, however, it is to be appreciated that may be realized in various forms the present invention without should be by
Embodiments set forth herein is limited.On the contrary, thesing embodiments are provided so that the present invention is more saturating
It is thorough and complete, and those skilled in the art can be will fully convey the scope of the invention to.
Embodiment 1
Fig. 1 shows the Processing Seismic Data of elimination Hz noise according to an embodiment of the invention
Flow chart.This method includes：
Step 101, FFT changes are carried out to the time domain earthquake record disturbed containing single-frequency (such as 50Hz power frequencies)
(Fast Fourier Transform (FFT)) is changed, corresponding frequency domain earthquake record is obtained；
Step 102, in the frequency domain earthquake record, the frequency spectrum at the single-frequency is replaced with the frequency spectrum near the single-frequency；
Step 103, inverse FFT conversion is carried out to the frequency domain earthquake record after replacement, the single-frequency that is eliminated is done
Time domain earthquake record after disturbing.
In the present embodiment, for the time domain seismic signal disturbed containing single-frequency (such as 50Hz power frequencies), pass through
Replace the frequency spectrum at the single-frequency with the frequency spectrum near the single-frequency, so as to realize that interference is eliminated, its calculate it is easy and
Amount of calculation is small, and does not damage useful signal (such as the useful signal at 50Hz).
In a kind of possible embodiment, first it can enter to replacing obtained frequency domain earthquake record in step 102
Row smoothing processing, then carries out inverse FFT change, to be disappeared to the frequency domain earthquake record after smoothing processing again
Except the time domain earthquake record after the mono-tone interference.
, before step 101, can be first from multiple time domain earthquake records in a kind of possible embodiment
Isolate the time domain earthquake record containing the mono-tone interference；After step 103, it will can be done without the single-frequency
The time domain earthquake record disturbed and eliminate the time domain earthquake record after the mono-tone interference and (separated by with by former order
Order of each the preceding time domain earthquake record in the multiple time domain earthquake record) sequence, then export again.
For example, before step 101, can be first from each time domain earthquake record in multiple time domain earthquake records
One section of geological data is intercepted, oscillator intensity of the geological data of interception at single-frequency interested is then based on,
Whether the corresponding time domain earthquake record of geological data for determining the interception is the time domain earthquake containing the mono-tone interference
Data.If for example, amplitude of the geological data intercepted from some time domain earthquake record at the single-frequency is strong
Degree is more than predetermined threshold value, then it is believed that the time domain earthquake record is the time domain earthquake record containing the mono-tone interference.
Inventor by a large amount of emulation and checking it has also been found that, when each time domain earthquake record after 2/3 cut
When taking, generally more reliable, its reason that is disturbed time domain earthquake record gone out based on the data separating intercepted
It is：1/3 before time domain earthquake record, useful signal is generally relatively strong, to useful signal and strongly disturbing point
Degree of distinguishing is poor；And rear 2/3, useful signal would generally weaken, strong jamming is caused to highlight, so as to more
The time domain earthquake record containing mono-tone interference is identified exactly.Therefore, when intercepting geological data, it can examine
Window during rear 2/3 locally or globally setting of each time domain earthquake record of the worry in multiple time domain earthquake records,
With the geological data needed for interception.For example, it is assumed that the length of a time domain earthquake record is 6 seconds, then can be by
When window be set to 2 seconds~5 seconds, 3 seconds~5 seconds, 3 seconds~6 seconds, 2 seconds~6 seconds etc. etc., when first three is
The local time window citing of rear the 2/3 of domain earthquake record, the 4th kind when being rear 2/3 overall situation of time domain earthquake record
Window.
In a kind of possible embodiment, in a step 102 carry out frequency spectrum replacement when, can with the single-frequency
Adjacent and more than the single-frequency the corresponding frequency spectrum of frequency replaces the frequency spectrum at the single-frequency.For example, it is assumed that to be canceled
Mono-tone interference be 50Hz Hz noises, then it is contemplated that with 52~56Hz corresponding frequency spectrums replacement, 48~52Hz
The frequency spectrum at place.Inventor has found by a large amount of emulation and checking, with adjacent with the single-frequency and more than the single-frequency
The corresponding frequency spectrum of frequency is replaced, can eliminate mono-tone interference while further ensure that useful signal not by
Loss.
Fig. 2 shows the seism processing of the elimination 50Hz Hz noises according to an example of the present embodiment
The schematic diagram of method.First seismic data is pre-processed, for example space attribute defines, inserts header
Deng (201), dominant frequency analysis (202) then is carried out for every time domain earthquake record, and based on 50Hz
Whether be time domain earthquake record dominant frequency carry out the separation of time domain earthquake record (203), so as to be free of
The time domain earthquake record 204 of 50Hz Hz noises and the time domain earthquake record 205 containing 50Hz Hz noises.
FFT (206) is carried out to the time domain earthquake record 205 containing 50Hz Hz noises and obtains corresponding frequency
Domain earthquake record, then carries out adjacent spectral editing, and the frequency spectrum at 50Hz is replaced with adjacent spectra, for example, with
The corresponding frequency spectrums of 52~56Hz replace corresponding frequency spectrum (207) at 48~52Hz, then to the frequency domain after replacement
Shake record is smoothed, for example, (208) are smoothed to the corresponding frequency spectrums of 44~56Hz, it
(209) are converted by inverse FFT afterwards to be eliminated the time domain earthquake record 210 after 50Hz Hz noises.No
Time domain earthquake record after the time domain earthquake record 204 and elimination 50Hz Hz noises of the Hz noise containing 50Hz
210 sort (211) and export (212) according to former order.
Present invention is particularly suitable for this kind of interference range of 50Hz Hz noises it is big, the mono-tone interference that intensity is high disappear
Remove.
Embodiment 2
The invention also discloses a kind of seism processing device for eliminating mono-tone interference, the device includes：FFT
Converter unit, for carrying out FFT to the time domain earthquake record containing mono-tone interference, obtains corresponding frequency
Domain earthquake record；Frequency spectrum replacement unit, for being replaced in the frequency domain earthquake record with the frequency spectrum near the single-frequency
The frequency spectrum changed at the single-frequency；Inverse FFT converter unit, for carrying out inverse FFT to the frequency domain earthquake record after replacement
Time domain earthquake record after conversion, the mono-tone interference that is eliminated.
, can be first to the frequency domain after replacement before carry out inverse FFT conversion in a kind of possible embodiment
Shake record is smoothed, and then carries out inverse FFT conversion to the frequency domain earthquake record after smoothed processing again.
In a kind of possible embodiment, the device may also include：Earthquake record separative element, Ke Yiyong
In isolating the time domain earthquake record containing the mono-tone interference from multiple time domain earthquake records, it is possible to will point
The time domain earthquake record containing the mono-tone interference separated out is exported to the FFT unit；Earthquake record is closed
And unit, the time domain earthquake record without the mono-tone interference can be received from the earthquake record separative element,
And the time domain earthquake record eliminated after the mono-tone interference, Ke Yiyong can be received from the inverse FFT converter unit
In by the time domain earthquake record without the mono-tone interference and eliminate the mono-tone interference after time domain earthquake record by original
Order sorts.
In a kind of possible embodiment, isolated from multiple time domain earthquake records and contain the mono-tone interference
Time domain earthquake record can include：Can be from each time domain earthquake record in multiple time domain earthquake records
Intercept one section of geological data；Can oscillator intensity of the geological data based on interception at the single-frequency determine this section
Whether the corresponding time domain earthquake record of geological data taken is the time domain geological data containing the mono-tone interference.
In a kind of possible embodiment, each time domain earthquake that can be in multiple time domain earthquake records is remembered
Window during rear 2/3 locally or globally setting of record, to intercept the geological data
In a kind of possible embodiment, frequency spectrum at the single-frequency is replaced with the frequency spectrum near the single-frequency can be with
Including：The frequency at the single-frequency can be replaced with adjacent with the single-frequency and more than the single-frequency the corresponding frequency spectrum of frequency
Spectrum.
In a kind of possible embodiment, above-mentioned single-frequency can be 50Hz power frequencies.
Using example
For ease of understanding the scheme and its effect of the embodiment of the present invention, a concrete application example given below.
It will be understood by those skilled in the art that the example is only for the purposes of understanding the present invention, its any detail is not
It is intended to limit the present invention in any way.
Abscissa represents earthquake Taoist monastic name (i.e. earthquake record number) in Fig. 3 (a)~(d)；Ordinate is the time,
Unit is the second.Abscissa represents frequency in Fig. 4 (a)~(d), and unit is Hz；Ordinate represents to shake
Width, unit is dB.Fig. 3 (a)~(d) and Fig. 4 (a)~(d) are display image screen.
This example work area is located at Ordos Basin, and work area east-west direction is located at sumbul that Ga Zhen and Yi Jin Huolous
Between flag, work area east border is had been enter into Ejin Horo Banner county town, and light, heavy industry is flourishing, and G18 is at a high speed
Highway thing passes through work area the north, and railway passes through work area southeast corner, and high-voltage line is eastern from work area northeast through work area
Nan Jiao, these commercial power facilities are very unfavorable to seismic prospecting.As shown in Fig. 3 (a), in collection earthquake
There is obvious 50Hz Hz noises ripple in data, had a strong impact on the quality of seismic data.
Fig. 3 (b) is to apply the single shot record schematic diagram obtained after the trapper filtering in commercial processes software,
Fig. 3 (c) is to apply the single shot record schematic diagram obtained after the single-frequency filtering in commercial processes software, Fig. 3 (d)
It is using the obtained single shot record schematic diagram after present invention processing.It can be seen that from Fig. 3 (b)~(d)
Processing method can decay 50Hz Hz noises in above-mentioned 3, through the single-shot after this 3 kinds of processing methods processing
Record is substantially consistent from time domain.
But further, reference picture 4 (a)~(d) spectrum analysis can be seen that filtered through trapper after
Frequency spectrum (shown in such as Fig. 4 (c)) and original single-shot frequency after frequency spectrum (shown in such as Fig. 4 (b)) or single-frequency filtering
Spectrum (shown in such as Fig. 4 (a)) is compared to there is larger difference, and frequency spectrum has remnants' at 50Hz after trapper filtering
50Hz Hz noise ripples, frequency spectrum has larger change after 45Hz to original single-shot frequency spectrum after single-frequency filtering, its
Frequency and energy are changed, the useful signal damaged near 50Hz and 50Hz, are unfavorable for follow-up
Data interpretation and hydrocarbon exploration.Fig. 4 (d) is using the single-shot frequency spectrum after present invention processing, except the 50Hz that decayed
Outside neighbouring strong energy, remainder and original single-shot frequency spectrum are completely the same.As can be seen that and prior art
Compare, using the present invention, can ensure that useful signal is unaffected during 50Hz interference ripples are eliminated,
It is that Seismic Reservoir Prediction lays the foundation so as to drastically increase signal to noise ratio and the fidelity of seismic signal.
The present invention can be system, method and/or computer program product.Computer program product can include
Computer-readable recording medium, containing for making processor realize the computer of various aspects of the invention
Readable program instructions.
Computer-readable recording medium can keep and store to perform the instruction that equipment is used by instruction
Tangible device.Computer-readable recording medium for example can be-- but be not limited to-- storage device electric,
Magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or above-mentioned any conjunction
Suitable combination.The more specifically example (non exhaustive list) of computer-readable recording medium includes：It is portable
Formula computer disks, hard disk, random access memory (RAM), read-only storage (ROM), erasable type can
Program read-only memory (EPROM or flash memory), static RAM (SRAM), portable pressure
Contracting disk read-only storage (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, machinery are compiled
Decoding apparatus, the punch card for being for example stored thereon with instruction or groove internal projection structure and above-mentioned any conjunction
Suitable combination.Computer-readable recording medium used herein above is not construed as instantaneous signal in itself, such as
The electromagnetic wave of radio wave or other Free propagations, the electromagnetic wave propagated by waveguide or other transmission mediums
(for example, the light pulse for passing through fiber optic cables) or the electric signal transmitted by electric wire.
Computer-readable program instructions as described herein can download to each from computer-readable recording medium
Calculating/processing equipment, or downloaded by network, such as internet, LAN, wide area network and/or wireless network
To outer computer or External memory equipment.Network can include copper transmission cable, optical fiber transmission, wireless biography
Defeated, router, fire wall, interchanger, gateway computer and/or Edge Server.Each calculating/processing is set
Adapter or network interface in standby receive computer-readable program instructions from network, and forward the meter
Calculation machine readable program instructions, for being stored in the computer-readable recording medium in each calculating/processing equipment.
Can be assembly instruction, instruction set architecture for performing the computer program instructions that the present invention is operated
(ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data,
Or the source code or object code write with any combination of one or more programming languages, the programming language
Speech includes the programming language of object-oriented-Smalltalk, C++ etc., and routine process type programming language
Speech-such as " C " language or similar programming language.Computer-readable program instructions can be counted fully in user
Perform, partly perform on the user computer on calculation machine, as independent software kit execution, a part
Part is performed or completely on remote computer or server on the remote computer on the user computer
Perform.In the situation of remote computer is related to, remote computer can be by network-bag of any kind
LAN (LAN) or wide area network (WAN)-be connected to subscriber computer are included, or, it may be connected to outside meter
Calculation machine (such as using ISP come by Internet connection).In certain embodiments, pass through
Using the status information of computer-readable program instructions come personalized customization electronic circuit, such as FPGA
Circuit, field programmable gate array (FPGA) or programmable logic array (PLA), the electronic circuit can
To perform computer-readable program instructions, so as to realize various aspects of the invention.
Referring herein to the stream of method according to embodiments of the present invention, device (system) and computer program product
Journey figure and/or block diagram describe various aspects of the invention.It should be appreciated that each side of flow chart and/or block diagram
The combination of each square frame, can be realized by computer-readable program instructions in frame and flow chart and/or block diagram.
These computer-readable program instructions can be supplied to all-purpose computer, special-purpose computer or other compile
The processor of journey data processing equipment, so as to produce a kind of machine so that these instructions are passing through computer
Or other programmable data processing units computing device when, generate in implementation process figure and/or block diagram
The device of function/action specified in one or more square frames.Can also be these computer-readable program instructions
Storage in a computer-readable storage medium, these instruct cause computer, programmable data processing unit and/
Or other equipment works in a specific way, so that, the computer-readable medium for the instruction that is stored with then includes one
Manufacture, it includes function/action specified in one or more of implementation process figure and/or block diagram square frame
The instruction of various aspects.
Computer-readable program instructions can also be loaded into computer, other programmable data processing units,
Or on miscellaneous equipment so that perform one on computer, other programmable data processing units or miscellaneous equipment
Series of operative steps, to produce computer implemented process, so that in computer, other programmable numbers
According to one or more of instruction implementation process figure and/or block diagram performed in processing unit or miscellaneous equipment side
Function/action specified in frame.
Flow chart and block diagram in accompanying drawing show system, method and the meter of multiple embodiments according to the present invention
Architectural framework in the cards, function and the operation of calculation machine program product.At this point, flow chart or block diagram
In each square frame can represent a module, program segment or a part for instruction, the module, program segment
Or a part for instruction includes one or more executable instructions for being used to realize defined logic function.Having
In a little realizations as replacement, the function of being marked in square frame can also be with suitable different from what is marked in accompanying drawing
Sequence occurs.For example, two continuous square frames can essentially be performed substantially in parallel, they sometimes can also
Perform in the opposite order, this is depending on involved function.It is also noted that block diagram and/or flow chart
In each square frame and the square frame in block diagram and/or flow chart combination, can with perform as defined in function
Or the special hardware based system of action is realized, or specialized hardware and computer instruction can be used
Combine to realize.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive,
And it is also not necessarily limited to disclosed each embodiment.In the scope and spirit without departing from illustrated each embodiment
In the case of, many modifications and changes will be apparent from for those skilled in the art.
The selection of term used herein, it is intended to best explain the principle of each embodiment, practical application or to market
In technology improvement, or make the art other those of ordinary skill be understood that it is disclosed herein each
Embodiment.
Claims (10)
1. a kind of Processing Seismic Data for eliminating mono-tone interference, this method includes：
Step 101, FFT is carried out to the time domain earthquake record containing mono-tone interference, obtains corresponding frequency
Domain earthquake record；
Step 102, in the frequency domain earthquake record, the frequency spectrum at the single-frequency is replaced with the frequency spectrum near the single-frequency；
Step 103, inverse FFT conversion is carried out to the frequency domain earthquake record after replacement, the single-frequency that is eliminated is done
Time domain earthquake record after disturbing.
2. Processing Seismic Data according to claim 1, this method also includes：
Before inverse FFT conversion is carried out, first the frequency domain earthquake record after replacement is smoothed.
3. Processing Seismic Data according to claim 1, this method also includes：
Before step 101, isolated from multiple time domain earthquake records containing the mono-tone interference in time domain
Shake record；
After step 103, by the time domain earthquake record without the mono-tone interference and eliminate the mono-tone interference after
Time domain earthquake record sorted by former order.
4. Processing Seismic Data according to claim 3, wherein, from multiple time domain earthquake records
In isolate the time domain earthquake record containing the mono-tone interference and include：
One section of geological data is intercepted from each time domain earthquake record in multiple time domain earthquake records；
Oscillator intensity of the geological data based on interception at the single-frequency, determines the geological data correspondence of the interception
Time domain earthquake record whether be the time domain geological data containing the mono-tone interference.
5. Processing Seismic Data according to claim 4, wherein, in multiple time domain earthquake records
In each time domain earthquake record rear 2/3 locally or globally setting when window, to intercept the geological data.
6. Processing Seismic Data according to claim 1, wherein, with the frequency spectrum near the single-frequency
Replacing the frequency spectrum at the single-frequency includes：
The frequency spectrum at the single-frequency is replaced with adjacent with the single-frequency and more than the single-frequency the corresponding frequency spectrum of frequency.
7. Processing Seismic Data according to claim 1, wherein, the single-frequency is 50Hz power frequencies.
8. a kind of seism processing device for eliminating mono-tone interference, the device includes：
FFT unit, for carrying out FFT to the time domain earthquake record containing mono-tone interference, is obtained
Corresponding frequency domain earthquake record；
Frequency spectrum replacement unit, for replacing the single-frequency with the frequency spectrum near the single-frequency in the frequency domain earthquake record
The frequency spectrum at place；
Inverse FFT converter unit, for carrying out inverse FFT conversion to the frequency domain earthquake record after replacement, is disappeared
Except the time domain earthquake record after the mono-tone interference.
9. seism processing device according to claim 1, the device also includes：
Earthquake record separative element, for being isolated from multiple time domain earthquake records containing the mono-tone interference
Time domain earthquake record, and the time domain earthquake record containing the mono-tone interference isolated is exported to the FFT
Converter unit；
Earthquake record combining unit, the time domain without the mono-tone interference is received from the earthquake record separative element
Earthquake record, and the time domain earthquake record after the mono-tone interference is eliminated from inverse FFT converter unit reception,
For the time domain earthquake record without the mono-tone interference and the time domain earthquake record eliminated after the mono-tone interference to be pressed
Former order sorts.
10. seism processing device according to claim 9, wherein, from multiple time domain earthquakes note
The time domain earthquake record containing the mono-tone interference is isolated in record to be included：
One section of geological data is intercepted from each time domain earthquake record in multiple time domain earthquake records；
Oscillator intensity of the geological data based on interception at the single-frequency, determines the geological data correspondence of the interception
Time domain earthquake record whether be the time domain geological data containing the mono-tone interference.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107561588A (en) * | 2017-09-19 | 2018-01-09 | 中国石油天然气股份有限公司 | A kind of geological data noise drawing method and device |
| CN109188510A (en) * | 2018-08-02 | 2019-01-11 | 中国地质大学（北京） | A kind of method of High Precision Automatic identification and compacting seismic data mono-tone interference |
| CN109884691A (en) * | 2019-03-06 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | For with the strong single-frequency and stochastic noise suppression method and system for adopting seismic signal |
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| CN109188510B (en) * | 2018-08-02 | 2020-06-02 | 中国地质大学（北京） | Method for automatically identifying and suppressing seismic data single-frequency interference with high precision |
| CN109884691A (en) * | 2019-03-06 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | For with the strong single-frequency and stochastic noise suppression method and system for adopting seismic signal |
| CN109884691B (en) * | 2019-03-06 | 2020-10-27 | 中煤科工集团西安研究院有限公司 | Strong single frequency and random noise suppression method and system for seismic signals with mining |
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