Downhole tool for determining in-situ formation stress orientati

Details Downhole tool for determining in-situ formation stress orientati Downhole tool for determining in-situ formation stress orientati

1988-04-29

1990-02-06

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

181105, 73151, G01V 100

Patent

active

048993204

ABSTRACT:
A downhole tool carries an inflatable packer by means of which radial pressure may be applied to the surrounding formation. Transducers within the packer measure the radial direction and extent of formation displacements responsive to such pressure. In this way one can determine the directions of maximum and minimum horizontal in-situ formation stress.

REFERENCES:
patent: 2927459 (1960-03-01), Farrington
patent: 4149409 (1979-04-01), Serata
patent: 4413678 (1983-11-01), Gillespie
patent: 4524433 (1985-06-01), Broding

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