UNIVERS seismic processing and interpretation software
Transcript of UNIVERS seismic processing and interpretation software
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
UNIVERS seismic processingand interpretation software
System platform
• Linux (IA32, AMD64), Solaris (SPARC) — main processing• MS Windows XP — field processing and report graphics preparation• Simple maintenance• No need for special 3rd party software
General procedures
Applications
• Checkshot VSP• Zero-offset and offset VSP• Walkaway and 3D VSP• 2D/3D+VSP• Surface seismic data analysis• Tie of VSP, LOG and CMP• Near-borehole interpretation• VSP acquisition system design
• Model based geometry designing• Preprocessing of LOG data• POLYCOR static correction• Signal processing - noise attenuation - model based iterative wave separation - filtering - polarization - correlation of seismic events - signature and statistically consistent deconvolution• Velocity inversion• Ray modeling and migration• Finite-difference modeling and vector migration• Inversion• Interpretation
Acquisition system design
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
Features:• Based on 3D velocity model• Both ray tracing and synthetic seismic modeling• Monotype and converted P/S reflections• Arbitrary vertical slice and X-Y plane view
WellShot Point
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-2500 1500-2000 -1500 -1000 -500 0 500 1000
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pth
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Offset, ft
6390 ft/s
7350 ft/s7350 ft/s
10240 ft/s
11240 ft/s
13500 ft/s
12785 ft/s
14180 ft/s
13500 ft/s
9845 ft/s
Well Shot Point
-500
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500
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-2500 1500-2000 -1500 -1000 -500 0 500 1000
Z
XY
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pth
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Offset, ft
6390 ft/s
7350 ft/s7350 ft/s
10240 ft/s
11240 ft/s
13500 ft/s
12785 ft/s
14180 ft/s
13500 ft/s
9845 ft/s
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-1500 900-1200 -900 -700 -500 -300 -100 100 300 500
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Refl.depth, ft
Shot Point
Reflection Points
Well
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Refl.depth, ft
Well
Shot Point
Reflection Points
Velocity model operations
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
Layering and zero offsetvelocity model tuning
Shear velocity tuning
Inverse kinematicproblem solution
for multiple offsets
Automatic wave separationImaging
Tie to LOG and CMP data2D velocity model3D velocity model
Further objectives:
Initial VSPwave-field
Automatic wave separation
Your benefits:Specifics:
• Model-based• 3C• Adaptive• Iterative• Noise aware• 2D/3D VSP
• separation• Easy to use• Fast processing• Ultimate results• Model check
Precise wave
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
Downgoing P (DP) Residuals
Downgoing S (DS) Harmonic noises
Multiple DP/UP/DSMultiple DP/UP/DP
Upgoing reflected P(DP/UP)
Downgoing convertedP/S (DP/DS)
Upgoing convertedP/S (DP/US)
neO pSte
Precise tie of CMP section to LOG via VSP
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
UNIVERS software Пакет ЮНИВЕРС
© GEOVERS Ltd., 2009 http://www.geovers.com
Imaging and interpretation
High definitionVSP imaging to
provide more detailscomparing surface
seismic section
G
Horizons correlation,map compositionwith horizons and
their attributes