Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate
2006-08-08
2006-08-08
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
C367S038000, C702S014000
Reexamination Certificate
active
07088639
ABSTRACT:
A method for seismic characterization of subsurface Earth formations includes determining at least one of compressional velocity and shear velocity, and determining reservoir parameters of subsurface Earth formations, at least including density, from data obtained from a wellbore penetrating the formations. A quality factor for the subsurface formations is calculated from the velocity, the density and the water saturation. A synthetic seismogram is calculated from the calculated quality factor and from the velocity and density. The synthetic seismogram is compared to a seismic survey made in the vicinity of the wellbore. At least one parameter is adjusted. The synthetic seismogram is recalculated using the adjusted parameter, and the adjusting, recalculating and comparing are repeated until a difference between the synthetic seismogram and the seismic survey falls below a selected threshold.
REFERENCES:
patent: 4969130 (1990-11-01), Wason et al.
patent: 4982382 (1991-01-01), Dablain
patent: 5583825 (1996-12-01), Carrazzone et al.
patent: 6374185 (2002-04-01), Taner et al.
patent: 2005/0055164 (2005-03-01), Neff et al.
Dvorkin Jack
Taner M. Turhan
Walls Joel
Fagin Richard A.
Lobo Ian J.
RDSP I L.P.
LandOfFree
Method for determining formation quality factor from well... 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 for determining formation quality factor from well..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining formation quality factor from well... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3624693