1. Multi-Component Seismic Data Processing
A Brief Introduction
For
Multi-Component Seismic Data Processing
With the development of petroleum exploration in china , more and more advanced technology has been employed.
PSDM is one of them. As the biggest geophysical service in china , from 1994 ,BGP has been studying on PSDM and accumulated some experience of PSDM processing, and PSDM is working very well in tarim basin petroleum exploration.
Ok, now I am glad to show some example of PSDM .

2. 1. Introduction
Since 1983 BGP has experimented and developed multi-component technology. This expertise has evolved into a series of integrated techniques which have been tested and have proved to be reliable suite of exploration and development seismic services.
Integrated Techniques
Z component processing
Statics
Pre-stack noise attenuation
Surface consistent processing
Velocity analysis, NMO, stack
Imaging
X,Y component processing
S wave statics
CCP binning
P-SV velocity analysis
P-SV wave NMO
P-SV wave imaging
Extraction of attributes

3. before
after
BGP advocates the integrated geophysical/geological exploration in the complicated regions. This strategy has set up many successful cases abroad and at home. The facts tell us that our policy benefits both BGP and the oil company.
S-wave Statics

4. Super gather Conventional NMO Non-hyperbolic NMO
PSV NMO
Super gather
Conventional NMO
Non-hyperbolic NMO

5. Final processing results
P-P
PSV
Final processing results

6. Gas-bearing sandstone Lithology prediction using Vp/Vs ratio

7. 2. Multi-Component Seismic Data Processing
  The Proposed Flow Chart for 2D Seismic Data Processing
P-P Wave Basic Processing Sequence
Demultiplexing 
Shot Gathers Display
Geometry Update
Sort to Vertical Component
Edit bad traces/shots, De-spiking
Elevation Static Correction
First Break Picking, Refraction Static Correction

8. Spherical Divergence Correction 
Spherical Divergence Correction 
Surface consistent amplitude compensation
Surface consistent deconvolution
Sort to CMP gather
First pass velocity analysis (every 500 m) and stack
First Pass Surface Consistent Residual Statics Correction
Predictive Deconvolution or Inverse Q-filter
Second pass velocity analysis (every 250m) and stack
Second Pass Surface Consistent Residual statics Correction
Kirchhoff Pre-stack Time Migration
NMO Inverse

9. Third Pass Velocity Analysis  Kirchhoff Pre-stack Time Migration
Third Pass Velocity Analysis 
Kirchhoff Pre-stack Time Migration
NMO Inverse and SEGY RAW PSTM Gather
NMO, Mute and Stack
F-X deconvolution
Post-stack Deconvolution
Time variant filter
Scaling
Final Result

10. Shot Gather and Near Offset Display Geometry Update
P-S Wave Basic Processing Sequence
Demultiplexing 
Shot Gather and Near Offset Display
Geometry Update
First Break Picking, Refraction Static Correction
Sort to Horizontal Component
Construction of a Vp/Vs
Negative offset polarity reversal, reverse trace analysis and correction
Rotation analysis and tests
PS static application
Edit bad traces/shots, de-spiking

11. FK Filter at Shot/Receiver Domain(Optional) 
FK Filter at Shot/Receiver Domain(Optional) 
Spherical Divergence Correct
Surface consistent amplitude compensation
Surface consistent deconvolution
Sort to CCP
CCP velocity analysis (every 500 m) and stack
1st Surface Consistent Residual statics Correction
Predictive Deconvolution or Inverse Qs-filter
2nd velocity analysis (every 250m) and stack
2nd Surface Consistent Residual statics Correction
Offset separation (positive and negative offsets) prior to PSTM
Kirchhoff Pre-stack Time Migration

12. Third Pass Velocity Analysis Kirchhoff Pre-stack Time Migration
NMO Inverse 
Third Pass Velocity Analysis
Kirchhoff Pre-stack Time Migration
NMO Inverse and SEGY RAW PSTM Gather
NMO, Mute and Stack
F-X deconvolution
Post-stack Deconvolution
Time variant filter
Scaling
Final Result

13. 2.1.3 Optional / additional Processing
P-S wave DMO with N offset planes. QC products.
Higher order non-hyperbolic NMO corrections. QC products.
Trim statics. QC products.
FD Migration with PS average velocities (2*VpVs/(Vp+Vs)). QC products.
Generation of SPS.
Computation of velocities from raw uphole data and building of static model.
Noise attenuation. The contractor is asked to propose available suited techniques
and to provide technical details. COMPANY will choose the method to be applied.
7. Pre-stack Depth Migration

14. ² Co-Sensor Interpolation ² Co-Sensor Sum
2.2 Key processing techniques for Multi-Component Seismic Data Processing
²           Automatic Vp/Vs Picker
²           Co-Sensor Interpolation
²           Co-Sensor Sum
²           Common Conversion Point (CCP) Binning
²           Multi-Component Cross-Equalization
²           S-Wave 2-Component Rotation
²           Vp/Vs Computation
²           Vp/Vs Correlation
²           Vp/Vs Transform
²           P-Sv PSTM
²           P-Sv DMO

15. THANK YOU!