[go: up one dir, main page]

CN103454675B - A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number - Google Patents

A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number Download PDF

Info

Publication number
CN103454675B
CN103454675B CN201210177420.8A CN201210177420A CN103454675B CN 103454675 B CN103454675 B CN 103454675B CN 201210177420 A CN201210177420 A CN 201210177420A CN 103454675 B CN103454675 B CN 103454675B
Authority
CN
China
Prior art keywords
data
big gun
instrument channel
record
sorting
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
Application number
CN201210177420.8A
Other languages
Chinese (zh)
Other versions
CN103454675A (en
Inventor
邬达理
胡中平
熊艳梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Geophysical Research Institute
Original Assignee
China Petroleum and Chemical Corp
Sinopec Geophysical Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Geophysical Research Institute filed Critical China Petroleum and Chemical Corp
Priority to CN201210177420.8A priority Critical patent/CN103454675B/en
Publication of CN103454675A publication Critical patent/CN103454675A/en
Application granted granted Critical
Publication of CN103454675B publication Critical patent/CN103454675B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)

Abstract

The wave field separation processing method that the invention provides a kind of elimination random disturbances based on instrument channel number, belongs to the seismic data process field in geophysical exploration. The precondition of this method is: adopt non-change observation system gathering in work progress, and the significant wave of adjacent trace record in the record of instrument channel territory has similitude; This method comprises: the input of (1) data; (2) the conventional pretreatment in shot point territory, then by resetting by the physical location of shot point the big gun record data that obtain by after physical location rearrangement again after big gun wire size sorting data; (3) convert shot point territory to instrument channel territory; (4) eliminate random disturbances; (5) convert instrument channel territory to shot point territory; (6) data after wave field separation step (5) being obtained are exported from seismic prospecting data treatment system. Utilize the inventive method can obtain good wave field separation effect, and greatly improved the quality of processing achievement.

Description

A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number
Technical field
The invention belongs to the seismic data process field in geophysical exploration, be specifically related to a kind of based on instrumentThe wave field separation processing method of the elimination random disturbances of channel number, for the seismic wave field of multi-source seismic prospectingThe compression process of separation and disturbing wave.
Background technology
The multi-source seismic prospecting of controlled source is that a kind of special firsthand information gathers construction method, executes for improvingWork efficiency rate has multiple focus to participate in construction simultaneously, and intensive exciting causes occurring that a large amount of overlapping big guns is existing in recordResemble, in original record, have a large amount of overlapping big gun records and exist, therefore the denoising of seismic data prestack is explorationOne of key issue of seismic data processing. Because the overlapping big gun in original seismic data is normally dry to be concerned withThe form of disturbing, mixes and is present in record with normal back wave record, and their energy, frequency are suitable,Ripple group can be sought without evident regularity, so be difficult to realize the compacting of overlapping big gun record. For overlapping big gun is recorded notProduce excessive negative effect to processing achievement, the way addressing this problem in prior art has: in the time gatheringBy blowing out a period of time in the time interval of different shot points, in processing, the overlapping big gun record in deep is not done to specific aimProcessing, just utilize stack suppresses or carries out undercutting and remove it; Shallow for appearing at, middle partOverlapping big gun record, generally takes Partial Resection to process, and can not be subject to the signal of guaranteeing main purpose layerSerious impact. But it is ubiquitous overlapping that these existing ways all can not be applicable in multi-source seismic prospectingThe compacting problem of big gun, and its result is also unfavorable for carrying out extraction and the oil-gas possibility research of prestack attribute.Along with deepening continuously of investigation and prospecting, explain that the requirement to processing achievement is more and more higher, in order to meet high processingThe requirement of quality, need to carry out meticulous wave field separation processing.
The firsthand information collection of seismic prospecting need design observation system before construction, so as construction, observation systemSystem defines shot point and detection arranged distribution and relativeness thereof, and it divides has the sight of change and non-change to see two classes, becomesObservation system refers to that the relativeness of shot point and detection arrangement is at monoblock three-dimensional or whole piece two dimension survey line boundary of works areaInside change, non-change observation system refers to that the relativeness that shot point and detection are arranged does not change in construction.
For the collection situation that becomes observation system and non-change observation system, a kind of based on the anti-pleat of common offset territory FX(" a kind of wave field is clean to please refer to the patent No. and be 201110328402.0 patent for long-pending wave field purifying treatment methodChange processing method ") can be adapted to the compacting of the overlapping big gun in multi-source seismic prospecting, but many in three-dimensional explorationUnder the observed pattern of big gun line, many seislines, the method based on common offset territory need be by big gun line, seisline sortingData are selected data very loaded down with trivial details in processing, and efficiency is low.
Summary of the invention
The object of the invention is to solve the difficult problem existing in above-mentioned prior art, provide a kind of logical based on instrumentThe wave field separation processing method of the elimination random disturbances of Taoist monastic name, is applicable to the situation of non-change observation system, is used forThe efficiency that improves seismic data processing, solves overlapping big gun interference problem, makes to exist a large amount of overlapping big gun record materialsProcessing obtain more preferably imaging effect, also suppress random disturbances simultaneously, improve signal to noise ratio.
The present invention is achieved by the following technical solutions:
A wave field separation processing method for elimination random disturbances based on instrument channel number, using said methodPrecondition be: adopt non-change observation system gathering in work progress, and instrument channel territory recordIn the significant wave of adjacent trace record there is similitude;
Described method utilizes seismic prospecting data treatment system to carry out wave field separation processing, specifically comprises following stepRapid:
(1) data input; Described data comprise initial data, measurement data and observation system;
(2) the conventional pretreatment in shot point territory, then by entering by the physical location of shot point after big gun wire size sorting data againRearrangement obtains by the big gun record data after physical location rearrangement;
(3) convert shot point territory to instrument channel territory: what step (2) was obtained resets by physical locationAfter big gun record data carry out sorting by instrument channel number, obtain instrument channel territory record data;
(4) eliminate random disturbances: on the instrument channel territory record data that obtain in step (3), utilizeRandom disturbances removing method falls overlapping big gun record and random noise attenuation, obtains muting that overlapping big gun recordsData;
(5) convert instrument channel territory to shot point territory: the overlapping big gun that mutes that step (4) is obtained is rememberedThe data of record are pressed big gun sorting data, obtain the data after wave field separation;
(6) data after wave field separation step (5) being obtained are defeated from seismic prospecting data treatment systemGo out.
The conventional pretreatment in described shot point territory in described step (2) refers to separates volume, space attribute definition, near-earthTable static correction and amplitude recovery pretreatment;
In described step (2) described by after big gun wire size sorting data (only have a big gun wire size for two dimension,Therefore just do not need by the sorting of big gun line) reset and obtain by physical location weight by the physical location of shot point againBig gun record data after row are achieved in that the space attribute defining are loaded into step (1) inputIn the trace header of initial data, by the sorting module that records in seismic prospecting data treatment system, big gun wire size is establishedAfter being main sorting, the described sorting module that records is automatically by big gun wire size sorting data; Then to pressing the sorting of big gun wire sizeGood data are reset the big gun record data that obtain by after physical location rearrangement by the physical location of shot point.
In described step (3), described in be achieved in that by earthquake and survey by instrument channel sorting dataThe sorting module that records of visiting data processing system is made as instrument channel number after main sorting, records sorting module certainlyThe moving recorded trace instrument channel sorting data in front of pressing.
Described random disturbances removing method in described step (4) comprises FX deconvolution or fitting of a polynomial sideMethod etc. Utilize these random disturbances methods to make result there is very high hi-fi of amplitude degree, significant wave composition damageLose little advantage.
In described step (5), choosing data by big gun number is achieved in that by seismic prospecting data and processes systemThe sorting module that records of system is arranged to main sorting, instrument channel number by big gun number and is made as after time sorting, records sortingModule is pressed recorded trace big gun in front number and instrument channel sorting data automatically.
Compared with prior art, the invention has the beneficial effects as follows:
(1) utilize the inventive method can obtain good wave field separation effect, greatly improved processing achievementQuality;
(2) to have advantages of that very high hi-fi of amplitude degree, significant wave composition lose little for the inventive method, can protectHold original ripple stack features, therefore for extraction and the oil-gas possibility research of follow-up prestack attribute have been established wellBasis, therefore, this inventive method improving firsthand information collecting efficiency, improve process achievement quality andInterpretation aspect also has good application prospect.
Brief description of the drawings
Fig. 1 is the step that the present invention is based on the wave field separation processing method of the elimination random disturbances of instrument channel numberRapid block diagram.
Fig. 2-1st, the wave field separation processing method that the present invention is based on the elimination random disturbances of instrument channel number is implementedThe original seismic data containing overlapping big gun in example.
Fig. 2-2nd, has increased the seismographic record of the overlapping big gun of 2 big gun to the original seismic data in Fig. 2-1.
Fig. 2-3rd, the elimination that the original seismic data utilization in Fig. 2-2 be the present invention is based on to instrument channel number withWhat after the wave field separation disposal methods that machine disturbs, obtain separates the seismographic record after overlapping big gun.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Application precondition of the present invention is: observation system does not have irregular change to see situation, and shot point is comparatively close(press the record of instrument channel sorting, its adjacent recorded trace has similitude to collection. At higher formation clination, structureMake complex area, the density requirements Ying Gaodian of shot point; , structure low relief area little at stratigraphic dip, shot pointDensity requirements can low spot. Existing observation system can meet, if shot interval is 50,100,200 meters etc.),The significant wave of the adjacent trace record in instrument channel territory record has good similitude, shot point and/or(meaning be can synchronizing moving or single movement) receives the movement of arranging and have linearity in certain scopeFeature or shot point and reception are arranged synchronizing moving and (as moved 50 meters in shot position, are received to arrange and move tooMoving 50 meters). The equipment of receiving record of being used for while referring to field data acquisition in seismic prospecting is arranged in described reception.Described certain scope refers to: data collection construction is progressively implemented by sub-block, as long as in sub-blockSatisfy condition. Described linear feature refers to: the movement of shot point in practice of construction (controlled source) need be pressedThe position that observation system is set excites, and acquisition and recording is carried out in construction in no particular order order, by (2)Step is chosen big gun record successively by the physical location of big gun line and shot point, can make the original observation of location restore of big gun recordSystem linearity feature.
This condition often can be met in most of exploratory area, that is to say existing multi-source seismic dataGenerally can meet this precondition. Common routine observation system all has the described spy of this preconditionPoint. Therefore, just for can obtaining good effect, this invention created condition. The inventive method canBe applied to 2 dimension seismic datas, also can be applied to 3 dimension seismic datas.
As shown in Figure 1, a kind of wave field separation processing method of the elimination random disturbances based on instrument channel number,Specifically comprise the following steps:
(1) data input, comprises the information such as initial data, measurement data, observation system;
(2) the conventional pretreatment in shot point territory, realizes and separates volume, space attribute definition, near surface static correction and shakeWidth recovers pretreatment. Realize that to separate volume, space attribute definition, near surface static correction, amplitude recovery pretreatedSpecific implementation method: it is that the sequential of seismic prospecting original record is recorded and converts order record to that described solution is compiled;Described space attribute definition is to utilize the information such as measurement data, observation system obtaining in field acquisition construction,Set up shot point, geophone station, common reflection point relational file; Described near surface static correction is to utilize space attribute literary compositionCautious coordinate, elevation, the seismic processing benchmark of first arrival time (being picked up by processing person), big gun of part, big gun recordThe information such as face (given by user), replacement velocity (given by user) are asked for shot point and cautious static correction value;Described amplitude recovery is amplitude difference in compensation road, amplitude difference between compensation road, between big gun; Separate volume, space genusProperty definition, near surface static correction, amplitude recovery be the element task during seismic prospecting data is processed, be respectivelyUtilize seismic prospecting data treatment system (as the process software of WesternGeco company (Omega); Or CGGThe process software (Geocluster) of company; Or the process software of Paradigm company (FOCUS); OrThe process software (PROMAX) of LandMark company) in solution compile module, space attribute definition module, near-earthTable static correction module, spherical diffusion and absorption compensation module and earth's surface-consistent amplitude compensation module realize;
Complete after the work of doing after above-mentioned pretreatment, by big gun wire size, (big gun line comprises multiple big gun record (big gunsNumber, two-dimension earthquake exploration just only has a big gun line, has many big gun lines in 3-d seismic exploration) sorting dataAfter reset by the physical location of shot point again. Reset and refer to by shot point geography by the physical location of shot pointThe distribution of position, pass through choose successively (3 dimension seismic prospectings shot points be conventionally scattered inSquare matrix-shaped, in construction, in order to raise the efficiency, shot point excites not necessarily and carries out successively by the order in geographical position. In order to meet the application precondition of this method: the having of the adjacent trace record in instrument channel territory recordEffect ripple has similitude, need to reset record by the physical location of shot point again). Press big gun wire size sorting dataSpecific implementation method be: the space attribute defining is loaded in the trace header of seismographic record, by earthquakeExploration data treatment system record sorting module (this module is module very conventional in treatment system, itCan, according to processing person's needs, realize the conversion of processing domain). In two-dimension earthquake exploration, by the physics of shot pointPosition rearrangement reaction data. In 3-d seismic exploration, the layout of shot point is that extensions are regular, first presses big gunThe well-graded record data of line, then by the order of pressing the well-graded record data of big gun line by the physical location of shot pointAfter rearrangement, can obtain the good result of coherence of significant wave; Sorting is the art during seismic prospecting data is processedLanguage is to convert the sequence of data volume (set of recorded trace) to another kind of mode from a kind of mode. ThisBright middle data, record, record data are all identical concepts.
(3) (refer to after pretreatment the whole big gun notes after resetting by physical location by instrument channel sorting dataRecord data). Press the specific implementation method of instrument channel sorting data: by seismic prospecting data treatment systemRecord sorting module, by recorded trace instrument channel sorting data in front, shot point territory record is turnedChange instrument channel territory into:
Conventionally in shot point territory, the useful signal of big gun record and overlapping big gun coherent interference record are to be superimposed together, therefore, various random disturbances technology for eliminating are all restricted at the treatment effect in shot point territory. In order to realizeSuppress the object of overlapping big gun record, the present invention utilizes to disturb also different visitor of the form that reflects in same area notSee rule, convert shot point territory to instrument channel territory, (press the specific embodiment party of instrument channel sorting dataMethod: by seismic prospecting data treatment system record sorting module, by instrument channel number be made as main sorting,Recording mechanism records sorting module automatically by recorded trace instrument channel sorting data in front after being made as time sorting,What now recording mechanism order kept having reset above is constant), make the phase of overlapping big gun disturbance records lineups in recordingDryness disappears, and overlapping big gun records coherent interference and is converted into random disturbances, and meanwhile, significant wave is in instrument channel numberTerritory still has good correlation, and this just haves laid a good foundation for the compacting of overlapping big gun record.
(4) utilize random disturbances removing method that overlapping big gun record is muted: in well-graded instrument channel numberOn the basis of numeric field data, utilize random disturbances removing method that strong overlapping big gun record is muted, can realize heavilyThe compacting of folded big gun record. Random disturbances removing method is existing, such as adopting FX deconvolution or multinomialThe method of the multiple tracks denoisings such as matching.
(5) data that muted overlapping big gun record that step (4) obtained are chosen data by big gun number and are obtained rippleData after field separates. Specific implementation method: on the basis after the compacting of overlapping big gun record, survey by earthquakeThat visits data processing system records sorting module, and big gun number is arranged to main sorting, and instrument channel number be inferior sorting,Press recorded trace big gun in front number, instrument channel sorting data, so just completed instrument channel numberTerritory record converts shot point territory record to, has obtained the data after wave field separation.
(6) (all seismographic records have just muted the overlapping big gun note in record to the data after wave field separationRecord and random noise). Data after this wave field separation be follow-up velocity analysis, residual static correction, stack,Migration imaging is laid a good foundation.
Shown in Fig. 2-1 is the original seismic data that does not add overlapping big gun, and shown in Fig. 2-2 is to have added 2 big gunsThe seismographic record of overlapping big gun, utilizes the inventive method to process the seismographic record shown in Fig. 2-2, obtainsSeparate the seismographic record after overlapping big gun shown in Fig. 2-3, comparison diagram 2-1, Fig. 2-2 and Fig. 2-3 canFind out, after utilizing the inventive method to process, significant wave does not change, and overlapping big gun record has been eliminated, because ofThe wave field of this acquisition has obtained good separation.
The inventive method can be applicable to locating of the intensive overlapping big gun record that excites appearance in Seismic Exploration with VibratorReason, also can be applicable to the processing that overlapping big gun, machinery etc. in other focus seismic prospecting record disturb.
Technique scheme is one embodiment of the present invention, for those skilled in the art,The invention discloses on the basis of application process and principle, be easy to make various types of improvement or distortion,And be not limited only to the described method of the above-mentioned detailed description of the invention of the present invention, therefore previously described mode is justPreferably, and do not there is restrictive meaning.

Claims (5)

1. a wave field separation processing method for the elimination random disturbances based on instrument channel number, is characterized in that: shouldBy the precondition of described method be: adopt non-change observation system gathering in work progress, and instrument is logicalThe significant wave of the adjacent trace record in the record of Taoist monastic name territory has similitude;
Described method utilizes seismic prospecting data treatment system to carry out wave field separation processing, specifically comprises following stepRapid:
(1) data input; Described data comprise initial data, measurement data and observation system;
(2) the conventional pretreatment in shot point territory, then by entering by the physical location of shot point after big gun wire size sorting data againRearrangement obtains by the big gun record data after physical location rearrangement;
(3) convert shot point territory to instrument channel territory: what step (2) was obtained resets by physical locationAfter big gun record data carry out sorting by instrument channel number, obtain instrument channel territory record data;
(4) eliminate random disturbances: on the instrument channel territory record data that obtain in step (3), utilizeRandom disturbances removing method falls overlapping big gun record and random noise attenuation, obtains muting that overlapping big gun recordsData;
(5) convert instrument channel territory to shot point territory: the overlapping big gun that mutes that step (4) is obtained is rememberedThe data of record are pressed big gun sorting data, obtain the data after wave field separation;
(6) data after wave field separation step (5) being obtained are defeated from seismic prospecting data treatment systemGo out.
2. the wave field separation processing side of the elimination random disturbances based on instrument channel number according to claim 1Method, is characterized in that: the conventional pretreatment in described shot point territory in described step (2) refers to separates volume, space genusProperty definition, near surface static correction and amplitude recovery pretreatment;
Described by resetting by the physical location of shot point again after big gun wire size sorting data in described step (2)To being achieved in that the space attribute defining is loaded into by the big gun record data after physical location rearrangementIn the trace header of the initial data of step (1) input, by the sorting of recording in seismic prospecting data treatment systemModule is made as big gun wire size after main sorting, and the described sorting module that records is automatically by big gun wire size sorting data; ThenTo by the well-graded data of big gun wire size by the physical location of shot point reset obtain by physical location reset afterBig gun record data.
3. the wave field separation processing side of the elimination random disturbances based on instrument channel number according to claim 2Method, is characterized in that: in described step (3), described in be achieved in that by instrument channel sorting dataThe sorting module that records by seismic prospecting data treatment system is made as instrument channel number after main sorting, described inRecord sorting module automatically by the instrument channel sorting data in front of the big gun recorded trace after physical location rearrangement.
4. the wave field separation processing side of the elimination random disturbances based on instrument channel number according to claim 3Method, is characterized in that: the described random disturbances removing method in described step (4) comprise FX deconvolution orPolynomial fitting method.
5. the wave field separation processing side of the elimination random disturbances based on instrument channel number according to claim 4Method, is characterized in that: in described step (5), be achieved in that by earthquake and survey by big gun sorting dataVisiting the sorting module that records of data processing system is arranged to main sorting, instrument channel number by big gun number and is made as time sortingAfter, the described sorting module that records is pressed big gun in the data record trace header that mutes overlapping big gun record number and instrument automaticallyDevice channel number sorting data.
CN201210177420.8A 2012-05-31 2012-05-31 A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number Active CN103454675B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210177420.8A CN103454675B (en) 2012-05-31 2012-05-31 A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210177420.8A CN103454675B (en) 2012-05-31 2012-05-31 A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number

Publications (2)

Publication Number Publication Date
CN103454675A CN103454675A (en) 2013-12-18
CN103454675B true CN103454675B (en) 2016-05-04

Family

ID=49737245

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210177420.8A Active CN103454675B (en) 2012-05-31 2012-05-31 A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number

Country Status (1)

Country Link
CN (1) CN103454675B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105277981B (en) * 2014-07-04 2018-02-02 中国石油化工股份有限公司 Nonuniformity time-lapse seismic bin matching process based on wave field extrapolation compensation
CN104914471B (en) * 2015-05-25 2017-04-05 中国石油天然气股份有限公司 Ground roll wave pressing method suitable for loess tablelands in non-vertical measuring line
CN109212606A (en) * 2017-07-06 2019-01-15 中国石油化工股份有限公司 Method for marine seismic data earth surface consistency vibration amplitude compensation processing method and system
CN115436995B (en) * 2022-08-09 2025-05-23 中煤科工集团西安研究院有限公司 Multi-source mixed seismic wave field separation method based on first-arrival wave field constraint

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188710C (en) * 2000-01-21 2005-02-09 施鲁博格控股有限公司 System and method for estimating seismic material properties
CN101630017A (en) * 2008-07-16 2010-01-20 中国石油天然气集团公司 Method for separating seismic wave fields of different types in two-dimensional vertical seismic profile
CN102053261A (en) * 2009-10-29 2011-05-11 中国石油化工股份有限公司 Method for processing seismic data
CN103076626A (en) * 2011-10-25 2013-05-01 中国石油化工股份有限公司 Wave field purification treatment method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691039B1 (en) * 2002-08-30 2004-02-10 John M. Robinson Removal of noise from seismic data using improved radon transformations

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188710C (en) * 2000-01-21 2005-02-09 施鲁博格控股有限公司 System and method for estimating seismic material properties
CN101630017A (en) * 2008-07-16 2010-01-20 中国石油天然气集团公司 Method for separating seismic wave fields of different types in two-dimensional vertical seismic profile
CN102053261A (en) * 2009-10-29 2011-05-11 中国石油化工股份有限公司 Method for processing seismic data
CN103076626A (en) * 2011-10-25 2013-05-01 中国石油化工股份有限公司 Wave field purification treatment method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
可控震源高保真采集数值模拟及炮集分离;张洁;《石油物探》;20120331;第51卷(第2期);全文 *
多源地震资料重叠炮信息消除方法研究;邬达理;《石油物探》;20130930;第52卷(第5期);全文 *

Also Published As

Publication number Publication date
CN103454675A (en) 2013-12-18

Similar Documents

Publication Publication Date Title
CN101334483B (en) Method for attenuating rayleigh wave scattered noise in earthquake data-handling
She et al. Shallow crustal structure of the middle‐lower Yangtze River region in eastern China from surface‐wave tomography of a large volume airgun‐shot experiment
CN102176054B (en) Near-surface comprehensive information processing explanation method
CN103582825A (en) Frequency-varying filtering of simultaneous source seismic data
CN113534243B (en) Marchenko imaging method and system for passive source
CN115993641B (en) Method for extracting passive source surface wave dispersion curve
CN101382598B (en) Pressing method for true 3-d seismics data linear noise
CN103454675B (en) A kind of wave field separation processing method of the elimination random disturbances based on instrument channel number
CN103675903A (en) Multi-source seismic wave field separating method by utilizing random denoising technology
CN103076626B (en) A kind of wave field purification treatment method
CN104570116A (en) Geological marker bed-based time difference analyzing and correcting method
CN103210323A (en) System and method for processing seismic data
CN113391351A (en) Method for analyzing and extracting ore-concentrated area structure based on passive source seismic wave field
CN102262243A (en) Method for suppressing harmonic interference in seismic data of controlled source by filtering
CN102636807A (en) Electromagnetic-type vibroseis seismic signal detection method
CN104133244B (en) A kind of near surface static corrections processing method of focus shear wave exploration
Luo et al. Improvement of frequency–Bessel phase‐velocity spectra of multicomponent cross‐correlation functions from seismic ambient noise
Liu et al. Source location with cross-coherence migration
CN108303741A (en) The double inspections of earthquake based on water inspection integral merge singing drawing method
CN105301634A (en) Method for increasing correlation quality of controlled seismic source single shot by utilizing record of detector near to seismic source
Song et al. Experiment of 3D seismic reflection technique for forward probing on TBM tunnel Face
Yoon et al. Along‐strike variations of crustal reflectivity related to the Andean subduction process
CN105093275A (en) Effective signal extraction ISS wave field separation method based on speed model
Chung et al. 2D elastic waveform inversion in the Laplace domain
CN107422375B (en) The determination method and apparatus of the CRP gather of subsea node

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant