ES360_Image_Paradigm_Distribution
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Transcript ES360_Image_Paradigm_Distribution
Earth Study 360 Technology overview
© 2012, PARADIGM. ALL RIGHTS RESERVED.
ES360 Components
Full Azimuth Illumination
EarthStudy 360 Imaging
EarthStudy 360 Processor and Visualization
Full Azimuth Anisotropic Tomography
Full Azimuth Residual Moveouts
Full Azimuth AVA Inversion
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Components
S
R
incident ray
REFLECTION DATA
1
2
reflected ray
2
Half opening angle
Opening Azimuth
2 1
xˆ
2
DIRECTIONAL DATA
Dip of ray-pair inward normal
1
1
yˆ
ˆ
z
© 2012, PARADIGM. ALL RIGHTS RESERVED.
2
Azimuth of ray-pair inward normal
Two Types of 3D Image Angle Gathers
• Directional
– Dip and azimuth
I M ,1, 2
• Reflection
– Opening angle and opening angle azimuth
I M , 1, 2
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables -ES360 Imager
Directional Gather
Specular Energy Weighted Stack – Final Image
Diffraction Energy Weighted Stack – Fracture and small scale
fault detection
Dip and Azimuth Volumes for Tomography or Curvature
Analysis
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Deliverables -ES360 Imager
Reflection Gather
Full Azimuth Angle Gathers used for kinematic and dynamic
analysis
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Deliverables- AVAZ
Full Azimuth AVA Inversion
Isotropic Gradient and Anisotropic Gradient Volumes
Fracture Density and Fracture Orientation Volumes
Fastvel
Delta2 and Fracture Orientation Volumes
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Deliverables HTI Inversion
HTI Kinematic Inversion
HTI Delta2 Map (fracture intensity map)
HTI Axis of Symmetry Map (normal to the fracture plane)
HTI Reliability Map
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Directional Angle Gathers Deliverables
Focal mechanism able to discriminate between specular and
diffraction waves
Specular energy weighted stack
Diffraction energy weighted stack
Structural attributes dip, azimuth and continuity, directly
from the directional angle gathers
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© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
EarthStudy 360 – Full Azimuth Directional Data
Specular Stack
Dip
Azimuth
FULL AZIMUTH DIP GATHER
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Continuity
Depth Migrated Section from 3D Transition Area
a) Directional angle decomposition followed by normal stack
b) Image in the same area with specular energy weighted stack
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Diffraction Imaging
Fractured Carbonate Reservoir in East Siberia
Migrated Slice
Scattered Energy
Soft Taper
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© 2012, PARADIGM. ALL RIGHTS RESERVED.
Scattered Energy
Hard Taper
Deliverables
Reflection Angle Gathers
Deliverables
Full Azimuth Velocity Analysis - Tomography
High Resolution Velocity Analysis - Tomography
Kinematic HTI Inversion
Reservoir characterization, fracture detection, and
elastic parameters analysis/inversion (AVAZ)
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Example of Residual Surface along ES360
Gathers- High resolution updates
Automatic picking of delays on full azimuth angle gathers
using the Poisson Picker
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
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ES360 Visualizer
ES360 Reflection Gather –
2D Display
Gather panel colored by opening angle
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Gather panel colored by Azimuth
Deliverables
Kinematic HTI Inversion
• Base carbonate carries classic signature of HTI anisotropy
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Kinematic HTI Inversion
Kinematics:
RMOphs ,phs phs ,phs Vnmo phs (Vver ,ax , 2 )
2 minor major
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Deliverables
Dynamic - Fracture Detection
Deliverables
a) Fracture Orientation b) Fracture Density
a) Normal Incidence b) Gradient
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c) Anisotropic Gradient
Deliverables
Surface Sectors
Multi -Azimuth
How many sectors ?
What is the correct azimuth sector ?
Offset Y
Offset X
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Surface Sectors
Multi -Azimuth
How many sectors ?
What azimuthal aperture ?
What azimuthal aperture ?
Offset Y
Offset X
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Azimuthal Discrepancy Map
SEG Model
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Benefit
• Fracture system detection
• High resolution Velocity Analysis
• Enhanced Specular Images
• Dense Ray Tracer
• Rich seismic information
• Uniform sub-surface illumination
© 2012, PARADIGM. ALL RIGHTS RESERVED.
Benefit
• Surface solution to a subsurface problem
• Multi – Azimuth requires a migration of
each sector
• No HTI Inversion
© 2012, PARADIGM. ALL RIGHTS RESERVED.