Method and apparatus for detecting seismic events by identifying

Details Method and apparatus for detecting seismic events by identifying Method and apparatus for detecting seismic events by identifying

1987-04-09

1988-02-23

Smith, Jerry

Boots, shoes, and leggings

367 38, 367 72, G01V 130

Patent

active

047274883

ABSTRACT:
An electronic system automatically detects significant events in a seismic trace. The seismic trace is defined as a series of consecutive points, equally spaced in time. The system provides for taking the Nth derivative of the trace at each of the points. The system has the capability of identifying the time of the zero-crossings of the Nth derivative and of establishing the amplitude of the trace at the time of the zero-crossing of the Nth derivative. Memory is provided for storing the amplitude of the trace and the times of the zero crossings in the Nth derivative. Finally, displays are provided for displaying the traces and the zero-crossings in the Nth derivative as a hard copy of visual display.

REFERENCES:
patent: 4499598 (1985-02-01), Chittineni
"3-D Seismic Interpretation" product brochure, Western Geophysical, publication No. 85-064, 1985.
Blake, B.A. "3D Seismic Data Reveals the Finer Structural Details of a Piercement Salt Dome", Geophysical Service, Inc. publication No. 4M/782 (8209P), 1982.
CRC Standard Mathematical Tables, 26th Edition, "Derivatives", 279-283, 1981.

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