Nuclear magnetic resonance tool using switchable source of...

G - Physics – 01 – R

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01R 33/44 (2006.01) G01V 3/32 (2006.01) G01R 33/383 (2006.01)

Patent

CA 2658740

A nuclear magnetic resonance sensing apparatus (10) and method for operating in an earth borehole (12) comprises a source of switchable magnetic field to polarize nuclei in the region of interest, said source comprising a coil (28) wound on a magnetic core (27) having controllable residual magnetization. Maintaining the magnetization of the core during a polarization interval does not require steady current in the coil. Switching intensity and polarity of magnetization of the core causes precession of spin magnetic moments of the nuclei; the precession induces a signal indicative of nuclear magnetic resonance properties of earth formations.

La présente invention concerne un appareil à résonance magnétique nucléaire et un procédé de fonctionnement dans un trou de forage terrestre comportant une source de champ magnétique commutable pour polariser des noyaux dans la région d'intérêt, ladite source comportant une bobine enroulée sur un noyau magnétique ayant une magnétisation résiduelle contrôlable. Le maintien du noyau lors d'un intervalle de polarisation ne nécessite pas de courant constant dans la bobine. L'intensité de commutation et la polarité de magnétisation du noyau entraîne la précession de moments de rotation des noyaux; la précession induit un signal indicatif des moments magnétiques des propriétés de résonance magnétique nucléaire des formations terrestres.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Nuclear magnetic resonance tool using switchable source of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nuclear magnetic resonance tool using switchable source of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear magnetic resonance tool using switchable source of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1766537

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.