Identifying earth stresses in acoustic well logging

G - Physics – 01 – V

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

349/5

G01V 1/44 (2006.01) E21B 49/00 (2006.01)

Patent

CA 2034263

An acoustic logging tool traverses a fluid-filled cased well with a monopole acoustic energy source. Pressure waves in the well fluid by the source generate symmetric tube waves in the well casing immediately adjacent the source. At least one spaced-apart receiver detects these tube waves after they have traveled directly to the receiver through the well casing. Asymmetry imparted to said tube waves as they travel along the well casing by the maximum and minimum earth stresses behind the well casing are identified and used to predict the azimuthal direction of subsequent hydraulic fractures.

Appareil de diagraphie acoustique traversant un puits tubé rempli de fluide avec une source d'énergie acoustique unipolaire. Les ondes de pression générées dans le fluide par la source produisent des ondes de tube au voisinage immédiat de la source. Au moins un récepteur est installé à distance pour détecter ces ondes de tube après qu'elles aient traversé le tubage du puits. Les ondes de tube asymétriques qui parcourent le tubage sur toute sa longueur et qui sont causées par les contraintes maximales et minimales derrière le tubage sont identifiées et utilisées pour prédire la direction horizontale des prochaines fractures hydrauliques.

LandOfFree

Say what you really think

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

Rating

Identifying earth stresses in acoustic well logging does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Identifying earth stresses in acoustic well logging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Identifying earth stresses in acoustic well logging will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1767888

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