Optimal processing of marine high-resolution seismic reflection (Chirp) data

R Quinn, JM Bull, JK Dix

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Chirp frequency-modulated (FM) systems offer deterministic, repeatable source-signatures for high-resolution, normal incidence marine seismic reflection data acquisition. An optimal processing sequence for uncorrelated Chirp data is presented to demonstrate the applicability of some conventional seismic reflection algorithms to high-resolution data sets, and to emphasise the importance of a known source-signature. An improvement of greater than 60dB in the signal-to-noise ratio is realised from correlating the FM reflection data with the transmitted pulse. Interpretability of ringy deconvolved data is enhanced by the calculation of instantaneous amplitudes. The signal-to-noise ratio and lateral reflector continuity are both improved by the application of predictive filters whose effectiveness are aided by the repeatability of the Chirp source.
LanguageEnglish
Pages13-20
JournalMarine Geophysical Researches
Volume20
Issue number1
Publication statusPublished - Feb 1998

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seismic reflection
signal-to-noise ratio
data acquisition
filter
calculation

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title = "Optimal processing of marine high-resolution seismic reflection (Chirp) data",
abstract = "Chirp frequency-modulated (FM) systems offer deterministic, repeatable source-signatures for high-resolution, normal incidence marine seismic reflection data acquisition. An optimal processing sequence for uncorrelated Chirp data is presented to demonstrate the applicability of some conventional seismic reflection algorithms to high-resolution data sets, and to emphasise the importance of a known source-signature. An improvement of greater than 60dB in the signal-to-noise ratio is realised from correlating the FM reflection data with the transmitted pulse. Interpretability of ringy deconvolved data is enhanced by the calculation of instantaneous amplitudes. The signal-to-noise ratio and lateral reflector continuity are both improved by the application of predictive filters whose effectiveness are aided by the repeatability of the Chirp source.",
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Optimal processing of marine high-resolution seismic reflection (Chirp) data. / Quinn, R; Bull, JM; Dix, JK.

In: Marine Geophysical Researches, Vol. 20, No. 1, 02.1998, p. 13-20.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optimal processing of marine high-resolution seismic reflection (Chirp) data

AU - Quinn, R

AU - Bull, JM

AU - Dix, JK

PY - 1998/2

Y1 - 1998/2

N2 - Chirp frequency-modulated (FM) systems offer deterministic, repeatable source-signatures for high-resolution, normal incidence marine seismic reflection data acquisition. An optimal processing sequence for uncorrelated Chirp data is presented to demonstrate the applicability of some conventional seismic reflection algorithms to high-resolution data sets, and to emphasise the importance of a known source-signature. An improvement of greater than 60dB in the signal-to-noise ratio is realised from correlating the FM reflection data with the transmitted pulse. Interpretability of ringy deconvolved data is enhanced by the calculation of instantaneous amplitudes. The signal-to-noise ratio and lateral reflector continuity are both improved by the application of predictive filters whose effectiveness are aided by the repeatability of the Chirp source.

AB - Chirp frequency-modulated (FM) systems offer deterministic, repeatable source-signatures for high-resolution, normal incidence marine seismic reflection data acquisition. An optimal processing sequence for uncorrelated Chirp data is presented to demonstrate the applicability of some conventional seismic reflection algorithms to high-resolution data sets, and to emphasise the importance of a known source-signature. An improvement of greater than 60dB in the signal-to-noise ratio is realised from correlating the FM reflection data with the transmitted pulse. Interpretability of ringy deconvolved data is enhanced by the calculation of instantaneous amplitudes. The signal-to-noise ratio and lateral reflector continuity are both improved by the application of predictive filters whose effectiveness are aided by the repeatability of the Chirp source.

M3 - Article

VL - 20

SP - 13

EP - 20

JO - Marine Geophysical Researches

T2 - Marine Geophysical Researches

JF - Marine Geophysical Researches

SN - 0025-3235

IS - 1

ER -