Acoustic logging tool having quadrapole source

Details Acoustic logging tool having quadrapole source Acoustic logging tool having quadrapole source

G - Physics

01

V

G01V 1/00 (2006.01) G01V 1/40 (2006.01) G01V 1/44 (2006.01)

Patent

CA 2390981

An acoustic tool that provides a reduced tool mode and enhanced accuracy for estimating shear wave propagation slowness in slow formations is disclosed. In one embodiment, the acoustic tool comprises: an acoustic source, an array of acoustic receivers, and an internal controller. The acoustic source excites waves that propagate in a quadrupole mode. The internal controller processes signals from the array of acoustic receivers to determine a peak phase semblance having a slowness value that varies with frequency. The minimum slowness value associated with the peak phase semblance provides an accurate estimate of the shear wave propagation slowness. The acoustic source preferably includes four source elements. The elements that are 90° apart are preferably driven in inverse-phase to obtain the quadrupole excitation pattern.

Affiliated with

Also associated with

Rating

Acoustic logging tool having quadrapole source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic logging tool having quadrapole source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic logging tool having quadrapole source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1604722