Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Reexamination Certificate
2008-05-20
2008-05-20
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
C367S124000, C367S129000, C367S130000
Reexamination Certificate
active
11256390
ABSTRACT:
A system comprises a plurality of acoustic transmitters, mounted inside the streamers, adapted to transmit broadband signals having low cross-correlation between the signals of different transmitters; a plurality of acoustic receivers, mounted inside the streamers, adapted to receive the signals from the transmitters; at least one processor adapted to cross-correlate the signals received at the receivers with copies of transmitter signals to determine identities of the transmitters of the received signals and to determine travel times of the received signals; and a main processor adapted to convert the travel times to distances between the identified transmitters and the receivers and to determine relative positions of the streamers from the distances.
REFERENCES:
patent: 4187492 (1980-02-01), Delignieres
patent: 4231111 (1980-10-01), Neeley
patent: 4398274 (1983-08-01), Chotiros
patent: 4912682 (1990-03-01), Norton, Jr. et al.
patent: 4992990 (1991-02-01), Langeland et al.
patent: 5668775 (1997-09-01), Hatteland
patent: 5761153 (1998-06-01), Gikas et al.
patent: 6157592 (2000-12-01), Kriz et al.
patent: 6697300 (2004-02-01), Holt
patent: 6771563 (2004-08-01), Bernard
patent: 6839302 (2005-01-01), Austad et al.
patent: 2 396 014 (2004-06-01), None
Falkenberg Jon
Gunnarsson Per Birger
Kröling Nils Gunnar Olof
Lunde Nils
Tenghamn Stig Rune Lennart
Lobo Ian J.
PGS Geophysical AS
Schweppe Charles R.
Thigpen E. Eugene
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