© 2012, paradigm. all rights reserved. earth study 360 technology overview

© 2012, PARADIGM. ALL RIGHTS RESERVED.

Earth Study 360 Technology overview


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

Components


2

reflected ray

incident ray

12

2

1

zˆ

x

y

S R

1

2

REFLECTION DATA

Half opening angle

Opening Azimuth

1

2

Dip of ray-pair inward normal

Azimuth of ray-pair inward normal

DIRECTIONAL DATA


Two Types of 3D Image Angle Gathers

• Directional– Dip and azimuth

• Reflection– Opening angle and opening angle azimuth

21,, MI

21,, MI


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

Deliverables


Deliverables -ES360 Imager

Reflection Gather

Full Azimuth Angle Gathers used for kinematic and dynamic

analysis

Deliverables


Full Azimuth AVA Inversion

Isotropic Gradient and Anisotropic Gradient Volumes

Fracture Density and Fracture Orientation Volumes

Fastvel

Delta2 and Fracture Orientation Volumes

Deliverables- AVAZ

Deliverables


HTI Kinematic Inversion

HTI Delta2 Map (fracture intensity map)

HTI Axis of Symmetry Map (normal to the fracture plane)

HTI Reliability Map

Deliverables HTI Inversion

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

9 Deliverables


EarthStudy 360 – Full Azimuth Directional Data

Specular Stack Dip Azimuth Continuity

FULL AZIMUTH DIP GATHER

Deliverables


Depth Migrated Section from 3D Transition Area

a) Directional angle decomposition followed by normal stackb) Image in the same area with specular energy weighted stack

Deliverables


Diffraction ImagingFractured Carbonate Reservoir in East Siberia

Migrated Slice Scattered EnergySoft Taper

Scattered EnergyHard Taper

12 Deliverables


Reflection Angle GathersDeliverables

Full Azimuth Velocity Analysis - Tomography

High Resolution Velocity Analysis - Tomography

Kinematic HTI Inversion

Reservoir characterization, fracture detection, and elastic parameters analysis/inversion (AVAZ)

Deliverables


Example of Residual Surface along ES360 Gathers- High resolution updates

14

Automatic picking of delays on full azimuth angle gathers using the Poisson Picker

Deliverables


Gather panel colored by opening angle Gather panel colored by Azimuth

ES360 ES360 Reflection Gather –– 2D Display 2D Display ES360 Visualizer

Deliverables



• Base carbonate carries classic signature of HTI anisotropy

Deliverables



Kinematics: ),,(,, 2phsnmophsphsphsphs axverVVRMO

majorminor2

Deliverables


a) Fracture Orientation b) Fracture Density a) Normal Incidence b) Gradient c) Anisotropic Gradient

Deliverables

Dynamic - Fracture Detection Deliverables


Offset X

Offset Y

Multi -Azimuth How many sectors ?

Surface Sectors

What is the correct azimuth sector ?


Offset X

Offset Y

Multi -Azimuth

How many sectors ?

What azimuthal aperture ?

Surface Sectors

What azimuthal aperture ?


Azimuthal Discrepancy MapSEG Model


Benefit

• Fracture system detection

• High resolution Velocity Analysis

• Enhanced Specular Images

• Dense Ray Tracer

• Rich seismic information

• Uniform sub-surface illumination


• Surface solution to a subsurface problem

• Multi – Azimuth requires a migration of each sector

• No HTI Inversion

Benefit

© 2012, paradigm. all rights reserved. earth study 360 technology overview

Documents

opening angle azimuth

azimuth angle gathers

azimuth volumes

azimuth reflection

normal azimuth of ray

azimuth anisotropic

normal directional data

dynamic analysis deliverables