Acoustics – Geophysical or subsurface exploration – Well logging
Patent
1989-04-13
1991-02-12
Lobo, Ian J.
Acoustics
Geophysical or subsurface exploration
Well logging
175 455, 102320, G01V 140
Patent
active
049916840
ABSTRACT:
A method and apparatus for geophysical exploration wherein a seismic wave is passed through a bore hole so as to sequentially detonate a plurality of explosive charges disposed within said bore hole at spaced intervals. A preselected seismic wave magnitude represented by a stored voltage is compared with signals generated by electro-acoustic sensors associated with each charge. When the magnitude of a seismic wave in the bore hole equals the preselected magnitude, a voltage stored on a capacitor discharges into a detonator. Means are provided for varying the stored voltage representing the preselected magnitude from the surface of the bore hole.
REFERENCES:
patent: 3100444 (1963-08-01), Ball et al.
patent: 3126964 (1964-03-01), La Rue
patent: 3246708 (1966-04-01), Harrigan, Jr. et al.
patent: 3741124 (1973-06-01), Visk
patent: 3768408 (1973-10-01), Hallmark
patent: 4031826 (1977-06-01), Gemmell et al.
patent: 4100978 (1978-07-01), Boop
patent: 4208966 (1980-06-01), Hart
patent: 4313380 (1982-02-01), Martner et al.
patent: 4454814 (1984-06-01), Henry et al.
patent: 4487125 (1984-12-01), Zuk
patent: 4527636 (1985-07-01), Bordon
patent: 4699241 (1987-10-01), Kerekes
LandOfFree
Method and apparatus for detonation of distributed charges 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 and apparatus for detonation of distributed charges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detonation of distributed charges will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-14214