Boots – shoes – and leggings
Patent
1988-05-06
1989-10-03
Jablon, Clark A.
Boots, shoes, and leggings
G01V 116, G01V 118
Patent
active
048721140
ABSTRACT:
A method of processing seismic signals detected by at least one sensor disposed in a tool lowered down a borehole, the seismic signals Sj(t) being recorded at different depths j of the tool in response to the propagation of seismic waves through the formations surrounding the borehole, the method making use of the signals Shj(t) detected by the sensor at each depth j in response to excitation from a shaker disposed inside the tool, the method being characterized by the fact that it comprises the following operations: a reference signal Shref(t) is defined for the excitation response produced by the shaker; a deconvolution function Dj(t) is calculated for each signal Shj(t) picked up at depth j in response to the excitation produced by the shaker in such a manner that the signal Shj(t) picked up at this depth after being convoluted with said deconvolution function Dj(t) gives the reference signal Shref(t); and the deconvolution function Dj(t) corresponding to depth j is applied to each seismic signal Sj(t) picked up at said depth j in order to obtain an equalized seismic signal Sjeg(t).
REFERENCES:
patent: 3518678 (1970-06-01), Lawrence et al.
French application Search Report for FR 2614996 published Nov. 1988, based on application No. FR 8706331.
de Montmollin, V., "Shaker Tests on Downhole Seismic Tools", Geophysics, vol. 53, No. 9, Sep. 1988, 1160-68.
Duennebier, F. K. et al., "A Simple Shaker Table for Seismometer Calibration", Marine Geophysical Researches, vol. 6, No. 3, 1984, 311-328.
Brun Yves
de Montmollin Vincent
Jablon Clark A.
Schlumberger Technology Corporation
Tager Clifford L.
LandOfFree
Method of processing excitation response of a shaker disposed wi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of processing excitation response of a shaker disposed wi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of processing excitation response of a shaker disposed wi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-668210