Differential-equation-based seismic data filtering

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Geophysics; (United States)

DOI:https://doi.org/10.1190/1.1443396· OSTI ID:5292429

Li, Jianchao ^[1]; Larner, K ^[2]

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1. Lauren Geophysical Processing Services, Denver, CO (United States)
2. Colorado School of Mines, Golden, CO (United States). Dept. of Geophysics

Suppressing noise and enhancing useful seismic signal by filtering is one of the important tasks of seismic data processing. Conventional filtering methods are implemented through either the convolution operation or various mathematical transforms. The authors describe a methodology for studying and implementing filters, which, unlike conventional filtering methods, is based on solving differential equations in the time and space domain. They call this differential-equation-based filtering (DEBF). DEBF does not require that seismic data be stationary, so filtering parameters can vary with every time and space point. Examples with two-dimensional (2-D) synthetic and field seismic data demonstrate that the DEBF method accomplishes the desired time- and space-varying temporal and moveout filtering at lower cost than conventional frequency-wavenumber-domain filtering. The computational advantage in 3-D would be much greater.

• DOE Contract Number: FG02-89ER14079
• OSTI ID: 5292429
• Journal Information: Geophysics; (United States), Journal Name: Geophysics; (United States) Vol. 58:12; ISSN GPYSA7; ISSN 0016-8033
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
ATTENUATION
DATA ANALYSIS
GEOPHYSICAL SURVEYS
IMAGE PROCESSING
PROCESSING
REFLECTION
SEISMIC SURVEYS
SURVEYS
WAVE PROPAGATION