Acoustics – Geophysical or subsurface exploration – Well logging
Patent
1990-04-06
1991-05-21
Lobo, Ian J.
Acoustics
Geophysical or subsurface exploration
Well logging
181104, 367911, 367 25, 166250, G01V 140, E21B 4700
Patent
active
050167278
ABSTRACT:
A method and device are disclosed particularly adapted for seismic prospection in substantially horizontal drains using intermediate frequency acoustic waves for conciliating the range and the power of resolution. In a well is lowered steps-by-steps a transmission-reception assembly comprising at least one probe associated with a guide block but able to be mechanically uncoupled therefrom, and at least one acoustic wave source associated with a guide block. The source is inserted in a rigid column connecting the probe to the surface control device. A delayed connection system makes it possible to connect the probe and the source electrically to a surface control and recording assembly. The source comprises one or more vibrators transmitting in the 200-2000 Hz band for example or a sparker.
REFERENCES:
patent: 4349072 (1982-09-01), Escaron et al.
patent: 4578785 (1986-03-01), Gelfand
patent: 4588243 (1986-05-01), Ramsey et al.
patent: 4690214 (1987-09-01), Wittrisch
patent: 4701890 (1987-10-01), Ohmer et al.
patent: 4799546 (1989-01-01), Hensley et al.
Institut Francais du Pe'trole
Lobo Ian J.
LandOfFree
Method and device of seismic prospection in wells and particular 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 device of seismic prospection in wells and particular, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device of seismic prospection in wells and particular will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-231027