Processing Note C0004B

DCS comments 05 Nov 2007: 

1) Data quality is very good, I sucessfully made a continous compressional slowness;
2) Above 2760m BRT (94 mLSF), formation arrivals were mixed and interfered by strong mud arrivals on MPS Wide mode processing due to a very slow formation, therefore LeakyP mode compressional has to be applied to label the final DTCO at this interval;
3) Below 2760m BRT (94 mLSF), Wide-band MPS compressional was labelled as final DTCO with high coherence and good quality;
4) Leaky-P mode compressional was only applied in the upper shallower interval;
5) Basically labelled compressional is good, users can check with STC coherence to find out. 

Thanks for your time!
Best regards, 

Liu Wei
Data & Consulting Services
Beijing CHG, Schlumberger


Note
MPS_Wide: wide frequency band processing
LeakyP:   frequency dispersion processing