Method and apparatus for sonic dip measurement

Details Method and apparatus for sonic dip measurement Method and apparatus for sonic dip measurement

1989-07-26

1990-04-17

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

181104, G01V 140

Patent

active

049186698

ABSTRACT:
A method and apparatus are disclosed for measurement of earth formation dip utilizing sonic techniques. At least three electroacoustic devices are utilized, each having an electroacoustic transmitter and a pair of electroacoustic receivers. The electroacoustic receivers are both located on one side of the transmitter and are preferably located vertically adjacent along a line with the transmitter. Transmitted acoustic energy is detected by the receivers and the elapsed time between detection by a first receiver and detection by a second receiver is determined. A correlation of the variations in elapsed times for each of the three electroacoustic devices is then utilized to calculate the formation dip at various depths.

REFERENCES:
patent: 3191141 (1965-06-01), Schuster
patent: 3376950 (1968-04-01), Grime
patent: 3526874 (1970-09-01), Schuster
patent: 3542150 (1970-11-01), Youmens et al.
patent: 4346406 (1982-08-01), Schuster
patent: 4495605 (1985-01-01), Desbrcuches

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