System for and method of processing a seismic signal
A seismic signal is created, processed and recorded and then analyzed to determine the nature of subterranean formations. A method of creating, processing and recording a seismic signal comprises the steps of creating a seismic signal; detecting the seismic signal at a first location during a selected time period simultaneously within a first frequency bandwidth and within a second frequency bandwidth, the second frequency bandwidth at least partially overlapping the first frequency bandwidth; creating a first band limited electrical signal representative of the seismic signal at the first location during a selected time period within the first frequency bandwidth; creating a second band limited electrical signal representative of the seismic signal at the first location during a selected time period within the second frequency bandwidth; combining the two band limited signals into a single signal having a frequency bandwidth including the first frequency bandwidth and the second frequency bandwidth; and displaying the single signal. The method according to the present invention permits optimal processing of each band limited signal, such that the displayed single signal possesses a relatively high signal-to-noise ratio and relatively accurately represents the original seismic signal.
- Assignee:
- Marathon Oil Company (Finland)
- Patent Number(s):
- US 4532618
- OSTI ID:
- 6239425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
580203* -- Geophysics-- Geophysical Survey Methods-- (1980-1989)
DATA PROCESSING
DESIGN
DETECTION
DISPLAY DEVICES
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MEMORY DEVICES
PROCESSING
SEISMIC ARRAYS
SEISMIC DETECTION
SEISMIC DETECTORS
SEISMIC SURVEYS
SEISMIC WAVES
SIGNAL-TO-NOISE RATIO
SIGNALS
SURVEYS