CN107367761B - A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method - Google Patents
A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method Download PDFInfo
- Publication number
- CN107367761B CN107367761B CN201710589492.6A CN201710589492A CN107367761B CN 107367761 B CN107367761 B CN 107367761B CN 201710589492 A CN201710589492 A CN 201710589492A CN 107367761 B CN107367761 B CN 107367761B
- Authority
- CN
- China
- Prior art keywords
- wide
- angle reflection
- reflection
- angle
- imaging
- 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
- 238000003384 imaging method Methods 0.000 title claims abstract description 49
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000012545 processing Methods 0.000 claims abstract description 33
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 238000004458 analytical method Methods 0.000 claims abstract description 20
- 238000013508 migration Methods 0.000 claims abstract description 16
- 230000005012 migration Effects 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000000717 retained effect Effects 0.000 claims abstract description 6
- 238000012937 correction Methods 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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. for interpretation or for event detection
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/50—Corrections or adjustments related to wave propagation
- G01V2210/51—Migration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/50—Corrections or adjustments related to wave propagation
- G01V2210/52—Move-out correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/50—Corrections or adjustments related to wave propagation
- G01V2210/53—Statics correction, e.g. weathering layer or transformation to a datum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/66—Subsurface modeling
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (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 discloses a kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging methods, wherein method includes: to obtain original single shot record information, and define seism processing observation system according to record information；Wherein, record information record has the seismic data comprising wide-angle Reflection；Seismic first breaks are picked up, tomographic statics are carried out to wide-angle Reflection；To seismic data amplitude compensation；Noise compacting is carried out to wide-angle Reflection；To the raising resolution processes of wide-angle Reflection；Wide-angle Reflection high-order NMO, and carry out velocity analysis；Seismic data is cut off, wide-angle Reflection is retained；Velocity modeling is carried out to wide-angle Reflection；It is preferred that the imaging parameters of wide-angle Reflection, obtain the migration imaging performance data of wide-angle Reflection.The present invention is according to seimic wave propagation mechanism, on the basis of Wave field analysis, is effectively identified to the wide-angle Reflection in single shot record, and is imaged using wide-angle Reflection, to improve the quality of deep seismic data imaging.
Description
Technical field
The present invention relates to complex prospecting area oil and natural gas seismic exploration technique field more particularly to a kind of massive desert are deep
Layer carbonate reservoir wideangle reflection wave imaging method.
Background technique
In Tarim Basin Middle Eastern, earth's surface sand dune, Sha Liang are rolling, and height difference variation is violent, subsurface geology
Construction is complicated, fault development, so that the signal-to-noise ratio of area's seismic data is low, data quality is poor.In seismic data acquisition, with
Seismic channel be continuously increased and the continuous increase of geophone offset, there are one group at remote geophone offset effectively to reflect for field firsthand information
Information, that is, wideangle reflection since wide-angle Reflection is refracted and other interference are covered, thus is not easy to be realized.
Under the conditions of certain stratum, common-shot-gather record in there are wide-angle Reflection, so-called wide-angle Reflection refer into
Firing angle is greater than the back wave of critical angle.In common earthquake record, wide-angle Reflection often close to refracted wave, often with refracted wave
And various converted waves etc. are mixed in together, therefore seism processing is taken as invalid information often and is removed, and seldom utilize.
The dynamics and kinematics character of wide-angle Reflection specifically include that the energy of (1) wide-angle Reflection much larger than refraction
The energy of wave and converted wave；(2) wide-angle Reflection does not have AVO feature；(3) frequency of wide-angle Reflection is passed significantly lower than normal
Broadcast the frequency of domain back wave；(4) wide-angle Reflection is generally present in other than direct wave, and geophone offset is very big, although basic in big gun domain
Linear distribution, but still be a part of hyperbola lineups, therefore, imaging position and normal propagation on time section
Domain is identical；(5) critical angle of wideangle reflection and the speed difference of upper and lower level position are inversely proportional, and speed difference is bigger, and critical angle is got over
It is small；(6) energy of wide-angle Reflection is related with the direction for receiving arrangement, and the received energy of updip direction will connect with downdip direction greatly
The energy of receipts.
In conventional seism processing, used technical method and workflow be not directed to wide-angle Reflection into
The processing of row purpose and optimization, are mainly reflected in:
(1) conventional static correction method using the back wave in normal data domain as target, for principle, led with " enough " by first break pickup
In picking up, near migration range information, and, remote offset distance first arrival letter insufficient to the remote geophone offset information attention where wide-angle Reflection
The static correction that the missing of breath causes wide-angle Reflection is insufficient or excessive, to affect the precision of wideangle reflection wave Velocity Analysis
With stacking image quality；
(2) when calculating dynamic correction value, conventional treatment omits high-order term and only calculates to 2 items, when geophone offset is smaller
When, the correcting value error that the method calculates is smaller, but when geophone offset is larger, dynamic correction value is less than normal, makes far to arrange dynamic school deficiency
And there are lineups and upwarp phenomenon；
(3) since wide-angle Reflection is present in remote geophone offset, be limited in scope, and often with direct wave, refracted wave, repeatedly folding
Ejected wave is mixed in together, the extremely strong refracted wave meeting severe jamming wideangle reflection information of energy, usually by refracted wave in conventional treatment
It is cut off together with wide-angle Reflection, wideangle reflection information is difficult to be utilized；
(4) with the increase of geophone offset, remote offset data as anisotropy caused by stretch distortion it is more prominent,
The dynamic correction of routine employed in isotropism processing or high-order NMO method can not still be fully solved evening up for remote trace gather partially
Problem；
(5) parameter testing that is deviated for remote geophone offset in conventional treatment and preferably, to affect wide-angle
The migration imaging effect of reflection.
In wide-angle reflection seismic data, since back wave, refracted wave etc. mix, and wide-angle Reflection is also no longer abided by
From hyperbola rule.Prestack excision, dynamic correction are different from conventional treatment method, and migration imaging also mostly uses anisotropy to deviate,
The accurate foundation of RMS velocity field and Anisotropic Parameters is the key that anisotropy offset.Therefore, it is necessary to one kind to wide
Corner reflection wave carries out the method that it is imaged in processing.
Summary of the invention
Goal of the invention of the invention is in view of the drawbacks of the prior art, to provide a kind of massive desert Deep Carbonate Rocks storage
Layer wideangle reflection wave imaging method mixes with other waves for solving wide-angle Reflection in the prior art, is taken as invalid information
It is removed, the problems such as being seldom utilized.
According to an aspect of the invention, there is provided a kind of massive desert deep carbonate reservoirs wide-angle Reflection imaging
Method, comprising:
Original single shot record information is obtained, and seism processing observation system is defined according to record information；Wherein, it records
Information record has the seismic data comprising wide-angle Reflection；
Seismic first breaks are picked up, tomographic statics are carried out to wide-angle Reflection；
To seismic data amplitude compensation；
Noise compacting is carried out to wide-angle Reflection；
To the raising resolution processes of wide-angle Reflection；
Wide-angle Reflection high-order NMO, and carry out velocity analysis；
Seismic data is cut off, wide-angle Reflection is retained；
Velocity modeling is carried out to wide-angle Reflection；
It is preferred that the imaging parameters of wide-angle Reflection, obtain the migration imaging performance data of wide-angle Reflection.
The massive desert deep carbonate reservoirs wideangle reflection wave imaging method provided according to the present invention, obtains original list
Big gun records information, and defines seism processing observation system according to record information；Wherein, record information record has comprising wide-angle
The seismic data of back wave；Seismic first breaks are picked up, tomographic statics are carried out to wide-angle Reflection；Seismic data amplitude is mended
It repays；Noise compacting is carried out to wide-angle Reflection；To the raising resolution processes of wide-angle Reflection；Wide-angle Reflection high-order moves school
Just, and velocity analysis is carried out；Seismic data is cut off, wide-angle Reflection is retained；Velocity modeling is carried out to wide-angle Reflection；
It is preferred that the imaging parameters of wide-angle Reflection, obtain the migration imaging performance data of wide-angle Reflection.The present invention is passed according to seismic wave
Broadcast mechanism, on the basis of Wave field analysis, the wide-angle Reflection in single shot record effectively identified, thus formulate it is effective
Processing scheme and techniqueflow.Using preliminary wave tomographic statics technology, improves the static correction quality of wide-angle Reflection and fold
Add imaging effect；In terms of denoising, for the distribution characteristics of wideangle reflection wave field, matched noise compacting scheme is designed,
Focus on the effective protection to wideangle reflection wave field；It is adapted therewith according to the offset distance characteristic distributions of wide-angle Reflection, use
Cutting method；In velocity analysis, using high-order NMO alignment technique, to improve the remote offset data in wide-angle Reflection place
Even up effect；For the residue dynamic school time difference, using anisotropic velocity modeling technique, by anisotropic parameters iteration, into one
Step raising wide-angle Reflection evens up degree；On migration imaging, parameter is preferably offset, is imaged using wide-angle Reflection, to mention
The quality of high deep layer seismic data imaging.With existing back wave seism processing compared with imaging technique method, the present invention
Modeled by preliminary wave tomographic statics, noise compacting, high-order NMO, fine excision, velocity analysis and anisotropic velocity,
The preferably equal wide-angle Reflections specific aim processing technique of offset parameter, utilizes the superposition time of wideangle reflection enhancing deep layer useful signal
Number can be improved in seismic data, the image quality of deep layer and signal-to-noise ratio.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is the flow chart of massive desert deep carbonate reservoirs wideangle reflection wave imaging method provided by the invention；
Fig. 2 is conventional imaging processing profiles；
Fig. 3 is wide-angle Reflection imaging section.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Wideangle reflection is that one kind of seismic data under the weak reflecting interface of acquisition Special section or shielded layer of high velocity is effective
One of geophysical exploration means, further investigate the feature of wide-angle Reflection, recognize its propagation law, use and formulation have
Targetedly Seismic Data Processing Technique and workflow efficiently use wideangle reflection in seism processing to the low letter of acquisition
It makes an uproar and is of great significance than regional mid-deep strata information.
Fig. 1 is the flow chart of massive desert deep carbonate reservoirs wideangle reflection wave imaging method provided by the invention,
As shown in Figure 1, massive desert deep carbonate reservoirs wideangle reflection wave imaging method includes:
Step S101 obtains original single shot record information, and defines seism processing observation system according to record information.
Original single shot record information is obtained, due to the earthquake money of the original single shot record information obtained in field actual acquisition
In material and actual coordinate and spatial relation not comprising shot point, geophone station will be sat by seism processing observation system
Mark system and inspection point spatial relation assign in original single shot record information, carry out subsequent seism processing work.
The definition of seism processing observation system is the necessary links in seism processing.It is fixed in seism processing observation system
After justice, the seismic data Portable belt of original single shot record information observation system information.Wherein, record information record has comprising wide
The seismic data of corner reflection wave.Shot point coordinate, shot point elevation, shot point well depth, geophone station is further comprised in single shot record information to sit
The measurement data such as mark, detection point height.
Step S102 picks up seismic first breaks, carries out tomographic statics to wide-angle Reflection.
When first arrival seismic wave picks up, for the distribution of wide-angle Reflection, when not only picking up nearly geophone offset first arrival
Between, more to pick up the remote geophone offset first arrival time where wideangle reflection.Near-surface velocity model is established using nearly first arrival partially, with right
Wide-angle Reflection long wavelength's static correction problem carries out tomographic statics processing；Utilize remote short wavelength of the first arrival partially to wide-angle Reflection
Static correction problem carries out tomographic statics processing, improves the static correction Overlay of wide-angle Reflection.
Step S103, to seismic data amplitude compensation.
Seismic data amplitude compensation can solve the amplitude uniformity problem and spherical diffusion generated due to inspection point factor
Caused by amplitude energy decay.
Step S104 carries out noise compacting to wide-angle Reflection.
Noise is suppressed based on the protection to wide-angle Reflection, to improve the signal-to-noise ratio of wideangle reflection.To retain wideangle reflection
Wave cannot directly cut off first break refraction there are the regions of wideangle reflection, but frequency-is carried out on the basis of Wave field analysis
Wavenumber domain filtering, two-dimensional filtering or linear disturbance scalping method suppress relevant interference, pass through the combined application of multiple domain, multi-method
With progressive iteration, the signal-to-noise ratio of seismic data is stepped up, and protects the dynamic characteristic of wideangle reflection signal emphatically, to obtain
Earthquake record comprising wide-angle Reflection.
Step S105, to the raising resolution processes of wide-angle Reflection.
When improving resolution processes, wide-angle Reflection is compressed to improve the longitudinal resolution of seismic data.
Step S106, wide-angle Reflection high-order NMO, and carry out velocity analysis.
Under the conditions of wide-angle, because geophone offset is very big, time distance curve of reflection wave is in non-double curve wire shaped, the anisotropy on stratum
Performance is obvious, is not able to satisfy conventional dynamic bearing calibration with nearly normal incidence, the supposed premise of homogeneous isotropic medium, to lead
When causing with conventional dynamic bearing calibration correction cannon offset and super large geophone offset seismic data, occurs stretch distortion phenomenon a long way.
For HORIZONTAL LAYERED MEDIUM WITH HIGH ACCURACY, the time distance curve of reflection wave at cannon offset is not only to be based on isotropic medium
Simple high order fitting, it embodies at cannon offset model media simultaneously has apparent anisotropic character.For this purpose,
Using high-order TEC time error correction method to correct the wide-angle Reflection within the scope of remote geophone offset, to provide higher velocity analysis
Precision.
Step S107, cuts off seismic data, retains wide-angle Reflection.
In big gun trace gather data truncation, first arrival direct wave, refracted wave and wide-angle Reflection cannot not be distinguish and " one
Knife is cut ".To take during processing it is interior excision, tail excision or part excision method, precise ablation direct wave, refracted wave and
Multiple refracted wave, to retain wide-angle Reflection.
Step S108 carries out velocity modeling to wide-angle Reflection.
Although high-order NMO has modified dynamic correction to a certain extent as a result, but its not theoretically basic solution
Stretch distortion problem caused by the dynamic correction of wide-angle.For this purpose, utilizing anisotropic velocity on the basis of high-order NMO velocity analysis
With the Optimized Iterative of anisotropic parameters, wide-angle Reflection is further promoted in velocity modeling evens up effect.
Step S109, the preferably imaging parameters of wide-angle Reflection obtain the migration imaging performance data of wide-angle Reflection.
On the basis of anisotropic velocity and anisotropic parameters model, anisotropy migration and imaging techniques, analysis are utilized
The imageable targets parameters such as the offset distance distribution of wide-angle Reflection, purpose layer depth, are preferably offset with the imaging effect of wideangle reflection
The imagings parameters such as aperture, offset angle, the anti-alias factor, offset distance grouping, to obtain based on the inclined of wide-angle Reflection
It moves into as performance data.
Fig. 2 is conventional imaging processing profiles, and Fig. 3 is wide-angle Reflection imaging section.By the comparison of Fig. 2 and Fig. 3,
It can be clearly seen that with existing back wave seism processing compared with imaging technique method, enhanced using wideangle reflection deep
The stacking fold of layer useful signal, can be improved in seismic data, the image quality of deep layer and signal-to-noise ratio.
The massive desert deep carbonate reservoirs wideangle reflection wave imaging method provided according to the present invention, obtains original list
Big gun records information, and defines observation system according to record information；Wherein, record information record has the earthquake comprising wide-angle Reflection
Data；Seismic first breaks are picked up, tomographic statics are carried out to wide-angle Reflection；To seismic data amplitude compensation；To wideangle reflection
Wave carries out noise compacting；To the raising resolution processes of wide-angle Reflection；Wide-angle Reflection high-order NMO, scanning frequency of going forward side by side degree point
Analysis；Seismic data is cut off, wide-angle Reflection is retained；Velocity modeling is carried out to wide-angle Reflection；It is preferred that wide-angle Reflection
Imaging parameters, obtain the migration imaging performance data of wide-angle Reflection.The present invention is according to seimic wave propagation mechanism, in wave field point
On the basis of analysis, the wide-angle Reflection in single shot record is effectively identified, to formulate effective processing scheme and skill
Art process.Using preliminary wave tomographic statics technology, the static correction quality and stacking image effect of wide-angle Reflection are improved；It is going
Aspect of making an uproar designs matched noise compacting scheme, focuses on to wide-angle Reflection for the distribution characteristics of wideangle reflection wave field
The effective protection of field；According to the offset distance characteristic distributions of wide-angle Reflection, the cutting method that use is adapted therewith；In speed point
In analysis, using high-order NMO alignment technique, effect is evened up with remote offset data where improving wide-angle Reflection；For residue
The dynamic school time difference, wide-angle Reflection is further increased by anisotropic parameters iteration using anisotropic velocity modeling technique
Even up degree；On migration imaging, parameter is preferably offset, is imaged using wide-angle Reflection, to improve deep seismic data imaging
Quality.With existing back wave seism processing compared with imaging technique method, the present invention chromatographs quiet school by preliminary wave
Just, the wide-angles such as noise compacting, high-order NMO, fine excision, velocity analysis and anisotropic velocity model, offset parameter is preferred
Seismic data can be improved using the stacking fold of wideangle reflection enhancing deep layer useful signal in back wave specific aim processing technique
In, the image quality of deep layer and signal-to-noise ratio.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (9)
1. a kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method characterized by comprising
Original single shot record information is obtained, and seism processing observation system is defined according to the record information；Wherein, described
Record information record has the seismic data comprising wide-angle Reflection；
Seismic first breaks are picked up, tomographic statics are carried out to the wide-angle Reflection；
To the seismic data amplitude compensation；
Noise compacting is carried out to the wide-angle Reflection；
To the raising resolution processes of the wide-angle Reflection；
To the wide-angle Reflection high-order NMO, and carry out velocity analysis；
The seismic data is cut off, the wide-angle Reflection is retained；
Velocity modeling is carried out to the wide-angle Reflection；
It is preferred that the imaging parameters of the wide-angle Reflection, obtain the migration imaging performance data of the wide-angle Reflection；
The pickup seismic first breaks, carrying out tomographic statics to the wide-angle Reflection further comprises:
Pick up the remote geophone offset first arrival time where nearly geophone offset first arrival time and wideangle reflection；
Using the remote geophone offset first arrival time where the nearly geophone offset first arrival time and wideangle reflection, wide-angle Reflection is carried out
The processing of long wavelength's tomographic statics and the processing of wide-angle Reflection short wavelength tomographic statics.
2. the method according to claim 1, wherein described obtain original single shot record information, and according to described
Record information defines seism processing observation system and further comprises:
Coordinate system and spatial relation are assigned to the record information using the seism processing observation system；Its
In, the record information includes shot point coordinate, shot point elevation, shot point well depth, geophone station coordinate and detection point height.
3. the method according to claim 1, wherein described suppress into one wide-angle Reflection progress noise
Step includes:
Noise compacting is carried out to the wide-angle Reflection using frequency wavenumber domain filtering, two-dimensional filtering or linear disturbance scalping method.
4. the method according to claim 1, wherein the raising resolution processes to the wide-angle Reflection
Further comprise:
Wide-angle Reflection is compressed to improve longitudinal resolution.
5. the method according to claim 1, wherein the wide-angle Reflection high-order NMO, scanning frequency of going forward side by side degree
Analysis further comprises:
The wide-angle Reflection within the scope of remote geophone offset is corrected using high-order TEC time error correction method, and carries out velocity analysis.
6. the method according to claim 1, wherein described cut off the seismic data, described in reservation
Wide-angle Reflection carries out excision:
Using interior excision, tail excision or part cutting method, to direct wave, refracted wave and the repeatedly refraction in the seismic data
Wave is cut off, and the wide-angle Reflection is retained.
7. the method according to claim 1, wherein described carry out velocity modeling into one to the wide-angle Reflection
Step includes:
Using the Optimized Iterative of anisotropic velocity and anisotropic parameters, velocity modeling is carried out to the wide-angle Reflection.
8. the method according to claim 1, wherein the imaging parameters of the preferably wide-angle Reflection, obtain
Migration imaging performance data to the wide-angle Reflection further comprises:
Using anisotropy migration and imaging techniques, the imageable target parameter of the wide-angle Reflection is analyzed, to described wide
The imaging parameter of corner reflection wave carries out preferably, obtaining the migration imaging performance data of the wide-angle Reflection.
9. according to the method described in claim 8, it is characterized in that, the imageable target parameter includes the offset of wide-angle Reflection
Away from distribution and purpose layer depth；The imaging parameter includes migration aperture, offset angle, the anti-alias factor and offset distance point
Group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589492.6A CN107367761B (en) | 2017-07-19 | 2017-07-19 | A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589492.6A CN107367761B (en) | 2017-07-19 | 2017-07-19 | A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107367761A CN107367761A (en) | 2017-11-21 |
| CN107367761B true CN107367761B (en) | 2019-04-26 |
Family
ID=60306815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589492.6A Active CN107367761B (en) | 2017-07-19 | 2017-07-19 | A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107367761B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919356B (en) * | 2018-05-15 | 2019-11-05 | 中国石油大学(华东) | A kind of stable massive desert attenuation compensation reverse-time migration imaging system and method |
| CN109738944B (en) * | 2019-03-05 | 2020-05-08 | 中国石油大学(北京) | Wide-angle reflection-based seismic acquisition parameter determination method and device |
| CN111965705B (en) * | 2020-07-21 | 2023-04-25 | 中国石油天然气集团有限公司 | Method, device, equipment and medium for calibrating geological horizon recorded by earthquake single shot |
| CN112255689B (en) * | 2020-10-31 | 2022-11-18 | 大庆油田有限责任公司 | Method for analyzing fidelity velocity of seismic data in multiple wave development area |
| CN113917539B (en) * | 2021-10-15 | 2023-07-14 | 中国地质科学院地球物理地球化学勘查研究所 | Volcanic-covered seismic data pre-stack trace set processing method, system and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269820A (en) * | 2010-06-01 | 2011-12-07 | 潜能恒信能源技术股份有限公司 | Three-dimensional seismic pre-stack reverse-time migration imaging method based on GPU (graphics processing unit) staggered grid with small memory capacity |
| CN102759745A (en) * | 2011-04-28 | 2012-10-31 | 中国石油天然气集团公司 | Method for forecasting carbonate reservoir based on forward modeling of digital geological outcrop model |
| CN103308941A (en) * | 2013-06-07 | 2013-09-18 | 中国石油天然气集团公司 | Imaging method and device based on optional wide angle wave equation |
| CN106033125A (en) * | 2016-06-29 | 2016-10-19 | 中国石油化工股份有限公司 | Suppression prestack large-angle gather interference based frequency increasing method |
-
2017
- 2017-07-19 CN CN201710589492.6A patent/CN107367761B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269820A (en) * | 2010-06-01 | 2011-12-07 | 潜能恒信能源技术股份有限公司 | Three-dimensional seismic pre-stack reverse-time migration imaging method based on GPU (graphics processing unit) staggered grid with small memory capacity |
| CN102759745A (en) * | 2011-04-28 | 2012-10-31 | 中国石油天然气集团公司 | Method for forecasting carbonate reservoir based on forward modeling of digital geological outcrop model |
| CN103308941A (en) * | 2013-06-07 | 2013-09-18 | 中国石油天然气集团公司 | Imaging method and device based on optional wide angle wave equation |
| CN106033125A (en) * | 2016-06-29 | 2016-10-19 | 中国石油化工股份有限公司 | Suppression prestack large-angle gather interference based frequency increasing method |
Non-Patent Citations (2)
| Title |
|---|
| 井间地震广角反射波形校正技术研究与应用;魏国华 等;《石油物探》;20110331;第50卷(第2期);206-212 |
| 广角反射大偏移距地震数据动校正拉伸处理;李子 等;《中国地球科学联合学术年会 2016》;20161015;1521 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107367761A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107367761B (en) | A kind of massive desert deep carbonate reservoirs wideangle reflection wave imaging method | |
| CN104570125B (en) | Method for improving imaging speed model precision by using well data | |
| CN107526101B (en) | A kind of acquisition and processing method obtaining earthquake reflected wave | |
| CN103645503B (en) | A kind of three-dimensional time territory illumination analysis and vibration amplitude compensation method | |
| Schwenk et al. | Surface-wave methods for anomaly detection | |
| US12007515B2 (en) | Optimal survey design | |
| CN107656308B (en) | A kind of common scattering point pre-stack time migration imaging method based on time depth scanning | |
| CN107085239B (en) | Examine differential merging method in submarine cable double-detection data land | |
| Jervis et al. | Making time-lapse seismic work in a complex desert environment for CO2 EOR monitoring—Design and acquisition | |
| Brodic et al. | Three-component seismic land streamer study of an esker architecture through S-and surface-wave imaging | |
| CN102053260B (en) | Method for acquiring azimuth velocity of primary wave and method for processing earthquake data | |
| CN101609163B (en) | Multi-scale seismic data joint imaging method based on fluctuation theory | |
| CN106443791B (en) | The method for asking for tilted stratum or anisotropic formation shear wave Value of residual static correction | |
| Deidda et al. | Common-reflection-surface imaging of shallow and ultrashallow reflectors | |
| CN113568046A (en) | Multi-dimensional information fracture characterization method for fracture azimuth constraint | |
| CN108761520A (en) | A kind of method of seismic acquisition parameter design | |
| CN105425300B (en) | A kind of residual static corrections | |
| CN101900830B (en) | Seismic scattering P-P wave imaging method | |
| Faggetter et al. | Time-lapse imaging using 3D ultra-high-frequency marine seismic reflection data | |
| CN113777653B (en) | Synthetic aperture type shallow seismic section exploration method and system | |
| CN109031411A (en) | Gaussian beam offset imaging method and system based on vertical seismic profiling (VSP) data | |
| Majdański et al. | Near-surface structure of the Carpathian Foredeep marginal zone in the Roztocze Hills area | |
| El-Kaseeh et al. | Seismic feasibility tests in the Williston Basin to improve reservoir characterization | |
| FR3059786B1 (en) | METHOD FOR IMPROVING SEISMIC ACQUISITIONS USING ULTIMATE ACTIVE SEISMIC DETECTION SYSTEMS | |
| El-Hussain et al. | Delineation of a paleo-channel utilizing integrated geophysical techniques at the port of duqm area, sultanate of oman |
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 |