Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1986-11-13
1989-02-07
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 35, 181105, G01V 128
Patent
active
048036676
ABSTRACT:
Data received from a sonde in a borehole is enhanced by first measuring the relative travel time of a signal transmitted from the sonde and reflected from an area in the wall of a borehole. This measurement is repeated for a plurality of angles in a horizontal plane. From this plurality of travel times a best fit ellipse or circle is calculated and the travel times are correlated with the best fit ellipse or circle to provide corrected travel times and to determine the eccentricity of the sonde in the borehole. The corrected travel times are displayed as images to indicate the detailed shape properties of the borehole.
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"Interpretation and Application of Borehole Televiewer Surveys", T. J. Tayler, SPWLA 24th Annular logging Symposium, Jun. 27-30, 1983.
"Determination of Borehole Shape by Inversion of Teleview Data" Peter Lyone, May-Jun. 1986, Log Analyst.
Georgi, Daniel T. "Geometrical Aspects of Borehole Televiewer Images", SPWLA Twenty-Sixth Annual Logging Symposium, Jun. 17-20, 1985.
Atlantic Richfield Company
Lott Robert D.
Swann Tod R.
Tarcza Thomas H.
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