Phase-alternated Carr-Purcell NMR echo sequence

Details Phase-alternated Carr-Purcell NMR echo sequence Phase-alternated Carr-Purcell NMR echo sequence

2006-04-25

2006-04-25

Arana, Louis (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using well logging device

Reexamination Certificate

active

07034529

ABSTRACT:
A phase alternated Carr Purcell (PACP) sequence is effective in removing DC offset from spin echo signals in earth formations. Modifications of PACP sequences, possibly in combination with other pulse sequences, can remove both DC offset and ringing. Such sequences may be used where the ringing is non-repeatable.

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