new migration deconvolution filters jianhua yu university of utah
TRANSCRIPT
![Page 1: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/1.jpg)
New Migration New Migration Deconvolution FiltersDeconvolution Filters
Jianhua YuJianhua Yu
University of UtahUniversity of Utah
![Page 2: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/2.jpg)
ContentsContentsMotivation: MD Prob. & Soln.
New MD Filters
Numerical Examples
Summary
![Page 3: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/3.jpg)
ContentsContentsMotivationNew MD Filters
Numerical Examples
Summary
Motivation New MD Filters Examples Summary
![Page 4: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/4.jpg)
Migration Deconvolution
mrG GT
Migration imageReflectivity
Migration Modeling
Motivation New MD Filters Examples Summary
Migration Green’s function
![Page 5: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/5.jpg)
Migration Deconvolution
mrG GT
G GT -1
][ G GT -1
][
11
Motivation New MD Filters Examples Summary
![Page 6: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/6.jpg)
Migration Deconvolution
mr
G GT -1
][
1
Motivation New MD Filters Examples Summary
![Page 7: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/7.jpg)
Migration Deconvolution Problems
mr G GT -1
][
For moderately complex models
V(z) assumption
Migration Green’s function based on ray theory
Motivation New MD Filters Examples Summary
![Page 8: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/8.jpg)
Migration Deconvolution Solution
mr G GT -1
][
Motivation New MD Filters Examples Summary
Replace G by a 1. WE Propagator2. Gaussian Beam Propagator3. Beylkin Inverse Determinant
![Page 9: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/9.jpg)
ContentsContentsMotivationNew MD Filters
Numerical Examples
Summary
Motivation New MD Filters Examples Summary
![Page 10: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/10.jpg)
Fourier Finite Difference MD
mr G GT -1
][
Motivation New MD Filters Examples Summary
sgsoogsg rdrdrrGrrGrrGrrG )()()()( ** ][
22
2
2
)1( yxz KKai
vK
![Page 11: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/11.jpg)
Gaussian Beam MD
mr G GT -1
][
Motivation New MD Filters Examples Summary
sgsoogsg rdrdrrGrrGrrGrrG )()()()( ** ][
] de ti
),,(~
)(Re[1
),|(
rrUFtrG rg s g s
![Page 12: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/12.jpg)
Beylkin Deblurring
mr G GT -1
][
Motivation New MD Filters Examples Summary
)(v x
),()( rs,rs, De i
|),(| h x )(),(8
)( 23
0
FdA
drs
xr
![Page 13: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/13.jpg)
ContentsContentsMotivationNew MD Filters
Numerical Examples
Discussion & Conclusions
Motivation New MD Filters Examples Summary
![Page 14: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/14.jpg)
Beylkin
FFD MD
Gaussian Beam MD Kirchhoff MD
Kirchhoff Mig
Motivation New MD Filters Examples Summary
![Page 15: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/15.jpg)
WE MD
Motivation New MD Filters Examples Summary
X (km)0
3
Y (km)
03
3
Y (km)
0
3
Y (km)
0
![Page 16: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/16.jpg)
Kirchhoff MD
Motivation New MD Filters Examples Summary
X (km)0
3
Y (km)
03
3
Y (km)
0
3
Y (km)
0
![Page 17: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/17.jpg)
X (km)0 203
10
Dep
th (
km
)
Motivation New MD Filters Examples Summary
Migration Image by FFD
![Page 18: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/18.jpg)
X (km)0 203
10
Dep
th (
km
)Wave Equation Migration
Motivation New MD Filters Examples Summary
![Page 19: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/19.jpg)
X (km)0 203
10
Dep
th (
km
)Wave Equation Migration after Kirch. MD
Motivation New MD Filters Examples Summary
![Page 20: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/20.jpg)
X (km)0 203
10
Dep
th (
km
)
Motivation New MD Filters Examples Summary
Wave Equation Migration after Beam MD
![Page 21: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/21.jpg)
X (km)0 202.5
10
Dep
th (
km
)
Motivation New MD Filters Examples Summary
Wave Equation Migration (AGC)
![Page 22: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/22.jpg)
X (km)0 202.5
10
Dep
th (
km
)Wave Equation migration after Kirch MD (AGC)
Motivation New MD Filters Examples Summary
![Page 23: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/23.jpg)
X (km)0 202.5
10
Dep
th (
km
)
Motivation New MD Filters Examples Summary
Wave Equation migration after Kirch MD (AGC)
![Page 24: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/24.jpg)
10
Dep
th (
km
)
Beam MD
No AGC
No AGC
Motivation New MD Filters Examples Summary
WE Mig
![Page 25: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/25.jpg)
5
10
Dep
th (
km
)WE Mig.
Beam MD
AGC
AGC
Motivation New MD Filters Examples Summary
![Page 26: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/26.jpg)
ContentsContentsMotivationNew MD Filters
Numerical Examples
Summary
Motivation New MD Filters Examples Summary
![Page 27: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/27.jpg)
SummarySummary
Beylkin inverse determinant for moderate complex structure
Cost: WEMD >> Beam MD
WEM+BMD for subsalt imaging
Quality: Beam MD = WE MD
Quality: Beam MD >> Kirch. MD
![Page 28: New Migration Deconvolution Filters Jianhua Yu University of Utah](https://reader035.vdocuments.site/reader035/viewer/2022062518/56649f555503460f94c78c68/html5/thumbnails/28.jpg)
Thanks toThanks to2003 UTAM Sponsors
SMAART Joint Venture
Alan Leeds (ChevronTexaco)
CHPC