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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
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AASPI Welcome and overview of AASPI accomplishments and software development Kurt J. Marfurt Attribute-Assisted Seismic Processing and Interpretation
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 • AliyaUrazaminova (M.S. Geophysics) – to Anadarko • Evan Staples (M.S. Geophysics) – to ConocoPhillips out going • Brad Wallet – (Ph.D. – Geophysics) – to Schlumberger • Trey White (M.S. Geology) • Sumit Verma (Ph.D. Geophysics) • Alfredo Fernandez (M.S. Geophysics) • Meliada Silva (M.S. Geophysics) • Mark Aisenberg (M.S. Geophysics) • Daniel Trumbo (M.S. Geology) in
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 (AliyaUrazimanova 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)
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) . (Urazaminova MS, 2011)
Well instability: Low μρ Shallow-dipping faults (Urazaminova MS, 2011)
Turbidite Depositional History Slump Debris Flow Fine grained sand Outcrop Study Medium/ Coarse grained sand Conglomerate/ Shale clast conglomerate Shale Section unavailable for measurement Paleocene-Eocene boundary (Cossey et al- Personal communication) Proximal levee Paleocurrent direction Thin bed- distal levee Channel fill Direction of slumps Removed rip up clasts (Sarkar PhD 2011)
Turbidite Depositional History Outcrop Study (Sarkar PhD 2011)
Turbidite Depositional History Outcrop Study (Paleocurrent Pattern) Tanlajas Golden Lane platform Amatitlan 3D Paleocene paleocurrent SMO Chicontepec subsurface production area 20 km (Sarkar PhD 2011) Paleocene slumps
Turbidite Depositional History Outcrop Study (Paleocurrent Pattern) Tanlajas Golden Lane platform Amatitlan 3D SMO Chicontepec subsurface production area Eocene paleocurrent directions 20 km (Sarkar PhD 2011)
Turbidite Depositional History Turbidite Patterns Within Stratigraphic Units Unit A Amalgamated channel Channel/ Canyon fill (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 Major SW Fan/ Channel fan complex N 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 80 70 μρ(Gpa-g/cm3) 60 50 Feldspar (avg) 40 30 20 10 (Sarkar PhD 2011) 10 60 40 100 140 λρ (Gpa-g/cm3)
Seismic Reservoir Characterization Interpretation Correlation with production Potential good production areas (Sarkar PhD 2011) 5 km
Seismic Reservoir Characterization Interpretation Relative indices for six month’s cumulative production Correlation with production 5 km Potential good production areas