Transcript Kurt_Marfurt

AASPI
Welcome and overview of AASPI accomplishments
and software development
Kurt J. Marfurt
Attribute-Assisted Seismic Processing and Interpretation
AASPI 2011 Sponsors
AASPI 2011 Personnel Changes
• Kui Zhang – (Ph.D. Geophysics) – to BGP
• Yanxia Guo – (M.S. Geophysics) – to BGP
• Amanda Thompson (M.S. Geophysics) – to Devon
• Oz Elis (M.S. Geophysics - to TPAO
• Ana Martins (M.S. Geophysics) – to Schlumberger
•---------------------------------------------------------------------------• Alejandro Cabrales-Vargas (M.S. Geophysics) – to PEMEX
• Supratik Sarkar (Ph.D. Geology) – to Shell
• Sunday Amoyedo (Ph.D. Geophysics) – to TOTAL
• Aliya Urazaminova (M.S. Geophysics) – to Anadarko
• Evan Staples (M.S. Geophysics) – to ConocoPhillips
• Brad Wallet – (Ph.D. – Geophysics) – to Schlumberger
in
• Trey White (M.S. Geology)
• Sumit Verma (Ph.D. Geophysics)
• Alfredo Fernandez (M.S. Geophysics)
• Melia da Silva (M.S. Geophysics)
• Mark Aisenberg (M.S. Geophysics)
• Daniel Trumbo (M.S. Geology)
out
going
AASPI 2011 Software Development
• 75% of the port to multiplatform performance (Linux and Windows 7)
• aaspi_io – C++ code to read/write files and command lines
• GUIs – C++ graphical user interfaces
• all higher level aaspi algorithms
• Developed and released the following new algorithms
• som2d – clustering of waveforms/stacking patterns at each trace
• som3d – clustering of attribute vectors at each voxel
• nmo_mp – non-stretch normal moveout using matching pursuit
• sof_prestack – prestack structure-oriented filtering
• azim_offset_mig – simple prestack Kirchhoff time migration
• aaspi_util_prestack – GUIs and scripts to handle migrated data
• Prototyped the following new algorithms
• Constrained 3D least-squares prestack time migration (working)
• cwt, cwt_inverse, and bandwidth extension (needs aaspi_io)
• Phase residue mapping of unconformities (needs aaspi_io)
• High resolution (factor component) velocity analysis
• Improved the following existing algorithms
• sof3d – near total restructuring
• dip3d – simplified and streamlined Kuwahara window options
• spec_cmp, sof3d – significantly improved spectral balancing
AASPI 2011 Workflow Development
• Calibration of curvature anomalies with outcrop analogues and image logs
(Evan Staples – Hunton Lime; Trey White – Mississippi Lime; Nabanita Gupta
– Woodford Shale)
• Correlation of core linked to seismic attributes via depositional environment
models (Nabanita Gupta)
• Prediction of sand production from time-lapse AVO analysis (Sunday
Amoyedo)
• Prediction of geomechanical properties and well-bore stability through
attribute-generated structure models, well logs, and prestack impedance
inversion and time-lapse seismic (Aliya Urazimanova and Sunday Amoyedo)
• Integration of outcrop flow directions, seismic stratigraphy, λρ-μρ inversion,
and production data to identify sweet spots, Chicontepec Bain (Supratik
Sarkar)
• Developed and perfected constrained least-squares constraints and data
prediction capabilities (Alejandro Cabrales-Vargas, Shiguang Guo)
AASPI Software
geology.ou.edu/aaspi
documentation
overview
Flow chart
examples
references
Examples of some interdisciplinary work –
G & G & Petroleum Engineering
Overlying seal strength – Forties Field, UK
(Urazaminova MS, 2011)
.
Unconfined Compressive
Strength (UCS)
(Aliya with Prof. Rogiers)
1, 2 
.

1

 arccos
2 2
 1   2



1/ 2
 1


  arccos
 2
 1   2


1/ 2
1   3 

 1   3 
(Urazaminova MS, 2011)
Well instability:
Low μρ
Shallow-dipping faults
(Urazaminova MS, 2011)
Turbidite Depositional History
Outcrop Study
Section
unavailable for
measurement
Paleocene-Eocene
boundary (Cossey
et al- Personal
communication)
Paleocurrent
direction
Removed rip up
clasts
Direction of
slumps
Slump
Debris
Flow
Fine grained
sand
Medium/ Coarse
grained sand
Conglomerate/ Shale
clast conglomerate
Shale
(Sarkar PhD 2011)
Turbidite Depositional History
Outcrop Study
(Sarkar PhD 2011)
Turbidite Depositional History
Outcrop Study (Paleocurrent Pattern)
Tanlajas
Paleocene paleocurrent
20 km
Paleocene slumps
(Sarkar PhD 2011)
Turbidite Depositional History
Outcrop Study (Paleocurrent Pattern)
Tanlajas
Eocene paleocurrent directions
20 km
(Sarkar PhD 2011)
Turbidite Depositional History
Turbidite Patterns Within Stratigraphic Units
Unit A
Channel/ Canyon fill
Amalgamated channel
(Sarkar PhD 2011)
Turbidite Depositional History
Turbidite Patterns Within Stratigraphic Units
Unit A
N
(Sarkar PhD 2011)
Turbidite Depositional History
Turbidite Patterns Within Stratigraphic Units
Unit A
Major NE Channel/ Channel
complex
NE Channel/ Channel complex
Fan/lobes from NE Channel
Splay
N
Major SW Fan/ Channel fan
complex
Extended Fan network (SW)
Mass transport complex
Levee- overbank deposit
Basin Plain
(Sarkar PhD 2011)
Seismic Reservoir Characterization
Interpretation
120
Quartz
110
100
90
Calcite
μρ(Gpa-g/cm3)
80
70
60
50
Feldspar (avg)
40
30
20
10
10
40
60
λρ
100
(Gpa-g/cm3)
140
(Sarkar PhD
2011)
Seismic Reservoir Characterization
Interpretation
Correlation with production
5 km
Potential good production areas
(Sarkar PhD 2011)
Seismic Reservoir Characterization
Interpretation
Correlation with production
Relative indices for six
month’s cumulative
production
5 km
Potential good production areas
Agenda
Time
8:00-9:00
9:00-10:00
10:00-11:45
12:10-13:00
Presenter
CONTINENTAL BREAKFAST
POSTERS
Presentations
LUNCH
13:00-14:15
Presentations
14:15-15:45
POSTER BREAK
15:45-17:00
Presentations
17:00-19:00
WINE, BEER, CHEESE AND
FEEDBACK