joint vsp and full azimuth 3d seismic exploration · 2016. 10. 28. · vsp surface seismic raw data...
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Joint VSP and Full Azimuth 3D Seismic Exploration
Integrated inversion of VSP and surface seismic
Integrated interpretation of VSP and surface seismic
Joint acquisition of VSP and surface seismic
Parameter estimation using VSP data
Joint processing of VSP and surface seismic
Fracture stick map overlaid on the coherence slice
Azimuth gather
Processing result of ZVSP & surface seismic Spectrum of ZVSP and surface seismic
Field operation 160 levels of 3D VSP VSP fold map Geometry of full-azimuth 3D seismic
Velocity estimation Q estimation on up-going ZVSP Anisotropic parameters evaluation
Volcano structure on the coherent slice Volcano structure interpretation
AVO intercept and poisson’s ratio slices Integrated structure and AVO attribute Hydrocarbon prediction
Intercept A T0_T4c+00
σσA+B 0_T4c+00
Intercept A T0_T4c+12
σA+B T0_T4c+12
Intercept A T0_T4c+20
σA+B T0_T4c+20
P-wave (intercept) amp. with Incidence angle
Poisson’s ratio
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
XS21-1
XS21-4
XS21-3
XS21-2
XS21
T0_T4+00T0_T4+00T0_T4+12T0_T4+12T0_T4+20T0_T4+20
Dry well Low gasLow gasGas wellWater well JY-1
Structural + crater reservoirStructural + crater reservoir
Stratigraphic
Stratigraphic reservoir inSedimentary rockStratigraphic reservoir insedimentary rock
AZIM 1-360 vel_stkvel_stk+e0.24
azimuth
AZIM 1-360 vel_stkAZIM 1-360 vel_stkvel_stk+e0.24
azimuth Dry wellDry wellDry well
VSP Surface seismic
Raw data
VSP
Processing resultSurface seismicVSP Surface seismic
Raw data
VSP Surface seismic
Raw data
VSP Surface seismic
Raw data
VSP
Processing resultSurface seismic
Processing resultSurface seismic
Spectrum of final result
legend
Freq. Hz
AMP. (db)
legend
Freq. Hz
AMP. (db)
Spectrum of input
Spectrum of VSPand surface data
Surface
VSP
1500 2000 2500 3000 3500 4000 4500 5000 5500 60000
1000
2000
3000
4000
5000
6000
velocity(m/s)
tim
e (m
s)
seismic
seismic nihe
zero nihe
result
ZVSPZVSP
Surface fitting
SeismicSeismic fittingZVSP fittingFinal velocity
1500 2000 2500 3000 3500 4000 4500 5000 5500 60000
1000
2000
3000
4000
5000
6000
velocity(m/s)
tim
e (m
s)
seismic
seismic nihe
zero nihe
result
ZVSPZVSP
Surface seismic
SeismicSeismic fittingZVSP fittingFinal velocity
T com. + Q 20
T com. + Q 80
T compensatio
n
T com. + Q 50
T com. + Q 20
T com. + Q 80
T compensatio
n
T com. + Q 50 X--coordinate
Y--c
oord
inate
S__time - Paul: 2438.408(m) [range : -32--172(204)]
692000 693000 694000 695000 696000 697000 698000 699000
5095000
5096000
5097000
5098000
5099000
5100000
5101000
5102000
-20
0
20
40
60
80
100
120
140
160
Residual Δt analysis of ray travel timeCorrection In isotropic media
0 500 1000 1500 2000 2500 3000 3500 4000 4500-50
0
50
100
150
200depth :2438.4674 aita :0.23
depth:2438m;η=0.23
0 500 1000 1500 2000 2500 3000 3500 4000 4500-150
-100
-50
0
50
100S__time - Paul - aita( 0.025):2438(m) [range : -81--27(108)]
offset(m)X--coordinate
Y--c
oord
inate
S__time - Paul - aita( 0.23):2438(m) [range : -81--27(108)]
692000 693000 694000 695000 696000 697000 698000 699000
5095000
5096000
5097000
5098000
5099000
5100000
5101000
5102000
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
Residual Δt analysis of ray travel timeCorrection In anisotropic media
Residual Δt analysis of ray travel timeCorrection In isotropic media
Residual Δt analysis of ray travel timeCorrection In anisotropic media
X--coordinate
Y--c
oord
inate
S__time - Paul: 2438.408(m) [range : -32--172(204)]
692000 693000 694000 695000 696000 697000 698000 699000
5095000
5096000
5097000
5098000
5099000
5100000
5101000
5102000
-20
0
20
40
60
80
100
120
140
160
Residual Δt analysis of ray travel timeCorrection In isotropic media
0 500 1000 1500 2000 2500 3000 3500 4000 4500-50
0
50
100
150
200depth :2438.4674 aita :0.23
depth:2438m;η=0.23
0 500 1000 1500 2000 2500 3000 3500 4000 4500-150
-100
-50
0
50
100S__time - Paul - aita( 0.025):2438(m) [range : -81--27(108)]
offset(m)X--coordinate
Y--c
oord
inate
S__time - Paul - aita( 0.23):2438(m) [range : -81--27(108)]
692000 693000 694000 695000 696000 697000 698000 699000
5095000
5096000
5097000
5098000
5099000
5100000
5101000
5102000
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
Residual Δt analysis of ray travel timeCorrection In anisotropic media
X--coordinate
Y--c
oord
inate
S__time - Paul - aita( 0.23):2438(m) [range : -81--27(108)]
692000 693000 694000 695000 696000 697000 698000 699000
5095000
5096000
5097000
5098000
5099000
5100000
5101000
5102000
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
Residual Δt analysis of ray travel timeCorrection In anisotropic media
Residual Δt analysis of ray travel timeCorrection In isotropic media
Residual Δt analysis of ray travel timeCorrection In anisotropic media
3D VSP receiver array
Surface receiver area
Common source area
3D VSP(276~2700)+Walkway VSP
Low relief + Low relief + stratigraphic reservoir
reservoir inStratigraphic reservoir insedimentary rock
Final V