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SEISMIC DATA ANALYSIS AND FIELD QC SYSTEM

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Presentation on theme: "SEISMIC DATA ANALYSIS AND FIELD QC SYSTEM"— Presentation transcript:

1 SEISMIC DATA ANALYSIS AND FIELD QC SYSTEM
Geophysical Data Systems Ltd. tel: +7 (495) SEISMIC DATA ANALYSIS AND FIELD QC SYSTEM

2 PURPOSE AND FEATURES Seismic data QC attributes calculation
Attributes mapping and visualizing Survey geometry attributes Display shot records Real-time QC monitor during acquisition

3  OIL COMPANY QC department
USERS  OIL COMPANY QC department SUPERVISOR  RECORDING SYSTEM OPERATOR

4 ATRRIBUTES AND COMPLEX QC
WORKFLOW DATA LOAD, GEOMETRY QC, SPREADS AND GATHERS DISPLAY RESULTS OUTPUT INTERACTIVE VISUALIZATION ANALYSIS WINDOWS AND PARAMETERS SETTING ATRRIBUTES AND COMPLEX QC COMPUTATION

5 Shot gathers Geometry DATA LOADING SEG-Y SEG-D trace headers (SEG-Y)
SPS

6 GEOMETRY QC

7 ATTRIBUTE WINDOWS Polygons Moveout curve

8 GEOPHYSICAL ATTRIBUTES SPECTRAL
Dominant frequency Spectral bandwidth

9 GEOPHYSICAL ATTRIBUTES SIGNAL / NOISE

10 USER DEFINED ATTRIBUTES AMPLITUDES RATIO
Signal Attribute 1 = Microseisms Ground roll Attribute 2 = Signal Microseisms ground roll Signal

11 TECHNICAL ATTRIBUTES ZERO AND NOISED CHANNELS
Raw AGC applied

12 ATTRIBUTE MAP COMPLEX QC
1,00 3,0 14,0 frequency Dominant 22,9 Band width 2,24 Noise Signal QC ґ + = High quality record Low quality record

13 TOPOGRAPHY BACKGROUND
ATTRIBUTE MAP DISPLAY TOPOGRAPHY BACKGROUND

14 ATTRIBUTE DISPLAY HISTOGRAMM SELECTION

15 GEOMETRY ATTRIBUTES STACKING FOLD / MID OFFSETS
Mid offsers

16 GEOMETRY ATTRIBUTES SPIDERS PLOT

17 USER INTERFACE SYNCHRONIZED WINDOWS

18 USER INTERFACE INTERACTIVE TOOLS

19 GEOPHYSICAL ATTRIBUTES TEST SHOTS COMPARISON
Complex QC: 1.00 Bandwidth: Hz Dominant freq: Гц S/N: Complex QC: 0.88 Bandwidth: Hz Dominant freq : Hz S/N:


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