System for reducing drill string multiples in field signals

Details System for reducing drill string multiples in field signals System for reducing drill string multiples in field signals

1988-06-30

1989-08-29

Kyle, Deborah L.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 38, 367 40, 181108, 175 40, G01V 100

Patent

active

048624233

ABSTRACT:
The invention comprises a method of geophysical exploration wherein a signal is generated at the lower end of a drill string and propagates into the earth and up said drill string. The signal is detected at the top of said drill string and at other locations substantially at the earth's surface. The signal detected at the top of the drill string is utilized to develop an operator to reduce the magnitude of drill string multiples in the signal detected by the field sensors.

REFERENCES:
patent: 3881168 (1975-04-01), Farr et al.
patent: 4391135 (1983-07-01), Godbey et al.
patent: 4460059 (1984-07-01), Katz
patent: 4718048 (1988-01-01), Staron et al.

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