Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate
2007-11-08
2009-12-15
Keith, Jack W. (Department: 3663)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
Reexamination Certificate
active
07633834
ABSTRACT:
A procedure to determine VSP-WD (Vertical Seismic Profiling—While Drilling) first breaks in absolute time is described. By combining a seismic surface source and firing complex seismic pattern unique in time (with a highly accurate surface—downhole time reference system), an automatic downhole procedure for first break detection on the downhole data, even under harsh conditions (low signal to noise ratio), is established. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
REFERENCES:
patent: 3159232 (1964-12-01), Fair
patent: 3701968 (1972-10-01), Broding
patent: 3727717 (1973-04-01), Miller
patent: 4739858 (1988-04-01), Dragoset, Jr.
patent: 4896303 (1990-01-01), Leslie et al.
patent: 4918668 (1990-04-01), Sallas
patent: 5012453 (1991-04-01), Katz
patent: 5109947 (1992-05-01), Rector, III
patent: 5111437 (1992-05-01), Rice
patent: 5579283 (1996-11-01), Owens et al.
patent: 5585556 (1996-12-01), Petersen et al.
patent: 5684693 (1997-11-01), Li
patent: 5901113 (1999-05-01), Masak et al.
patent: 5924499 (1999-07-01), Birchak et al.
patent: 5955966 (1999-09-01), Jeffryes et al.
patent: 5963138 (1999-10-01), Gruenhagen
patent: 6002642 (1999-12-01), Krebs
patent: 6023444 (2000-02-01), Naville et al.
patent: 6078868 (2000-06-01), Dubinsky
patent: 6094401 (2000-07-01), Masak et al.
patent: 6196335 (2001-03-01), Rodney
patent: 6308137 (2001-10-01), Underhill et al.
patent: 6584406 (2003-06-01), Harmon et al.
patent: 6717501 (2004-04-01), Hall et al.
patent: 6837105 (2005-01-01), DiFoggio et al.
patent: 6917564 (2005-07-01), Leaney
patent: 2005/0052949 (2005-03-01), Gaston et al.
patent: 2005/0285751 (2005-12-01), Hall et al.
Gaston Graham A.
Mathiszik Holger
Patterson Douglas J.
Baker Hughes Incorporated
Keith Jack W.
Madan & Sriram, P.C.
Saito Krystine
LandOfFree
VSP pattern recognition in absolute time does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with VSP pattern recognition in absolute time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VSP pattern recognition in absolute time will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4081639