5. www.petroexplorers.com
TYPICAL PROJECT LAYOUT
Rock Physics and Synthetic
Modeling
Dip, Curvature and
Multiattribute visualization
Fault and
Chimney
Analysis
Seismic
Sedimentology
Post-Stack
Inversion
Pre-stack
Inversion
Integration: Prospect Analysis
Rock Properties and Fluid Prediction
Background
Models
Sequence
Stratigraphy
(HC)
Geological Model and Facies Prediction
Qualitative Quantitative
5
Well Data Basic Interpretation Seismic Data
8. www.petroexplorers.com
CLASSIFIED CURVATURE CUBE
Curvature Analysis usually
yields cubes that contain
information about small scale
and large scale feature. In
order to separate large and
small-scale featres we use
curvature classification and
then filter out the classes that
are dissimilar from smaller to
larger step-out for curvature
calculation.
8
Most Positive Curvature NN Curvature Cube
11. www.petroexplorers.com
Sequence Strat - McMurray Incised Valley
Application of Horizon Cube (SSIS) to generate detailed reservoir model of
McMurray formation done by Rainer Tonn (Statoil) and dGB team.
The combined paper published in First Break, March 2011.
15. www.petroexplorers.com
LOG INTERPRETATION AND INVERSION
SW-NE cross-section flattened on top of PS4 (Kakwa sand
member, Cardium Fm, Canada)
Present day example – Galveston, Texas
SW
NE
19. www.petroexplorers.com
AVO/LMR – More definitive tool - can be transformed
more accurately to lithology and fluids
Lambda-Rho (incompressibility)
Mu-Rho (Rigidity)
Coals
Lambda-Rho (incompressibility)
Mu-Rho(Rigidity)
Tight calcareous sands
Gas siltstones
Low permeability
Lambda-Rho vs Mu-Rho x-plot do have physical
meaning related to the rocks and can be derived
seismically as well.
Pre-drill analysis for well 12-10. Falher F and G
sandstones with AVO effect
AVO/LMR – Simultaneous Lithology and Fluid Detection
20. www.petroexplorers.com
NN ROCK PROPERTY PREDICTION
The inverted LMR volumes
can be converted to rock
property volumes such as
GR or V-shale, Porosity,
Water Saturation etc.
through mathematical,
statistical or neural network
transformation
GR POR
SWE
21. www.petroexplorers.com
AZIMUTHAL AVO PARAMETER EXTRACTION
The gradients derived at various angles provide the residuals at various angles as it is compared to the
isotropic gradients. Eccentricity and Orientation are derived through mathematical analysis.
22. www.petroexplorers.com
FRACTURE DENSITY AND ORIENTATION
Fracture Density and Orientation derived from Gradient residuals shown by glyphs.
Fracture Density Fracture Orientation
Fracture Density and Orientation
