Method and apparatus for producing an image log of a wall of a b

Details Method and apparatus for producing an image log of a wall of a b Method and apparatus for producing an image log of a wall of a b

1984-12-18

1986-02-04

Caldwell, Sr., John W.

Measuring and testing

Borehole or drilling

Downhole test

340853, 324355, G01V 140

Patent

active

045677590

ABSTRACT:
A technique is described for producing an image log of an investigation of the wall of a borehole with a high resolution tool. The tool employs sensors for measuring a characteristic such as the conductivity of the wall at locations which circumferentially overlap. An accurate tool depth measuring device is employed to modify the measured characteristic so that the measurement can be displayed as a linear function of depth without visually detectable artifacts. Various signal processing and image enhancing techniques are described to produce an image log on which the characteristic can be seen as a variable intensity image in which small scale variations of the measured characteristic remain discernable and significant features visually stand out from the log.

REFERENCES:
patent: 3321770 (1967-05-01), Pittman
patent: 3402388 (1968-09-01), Tucker
patent: 3490149 (1970-01-01), Bowers
patent: 3502169 (1970-03-01), Chapman, III
patent: 3521154 (1970-07-01), Maricelli
patent: 3680042 (1972-07-01), Brunn
patent: 3697937 (1972-10-01), Ingram
patent: 3882474 (1975-05-01), Cain
patent: 3952282 (1976-04-01), Zemanek, Jr.
patent: 3986163 (1976-10-01), Elliott
patent: 4010476 (1977-05-01), Elliott
patent: 4131875 (1978-12-01), Ingram
patent: 4293933 (1981-10-01), Park et al.
patent: 4343021 (1982-08-01), Frame
patent: 4348748 (1982-09-01), Clavier et al.
patent: 4484139 (1984-11-01), Bravenec
"The High Resolution Dipmeter Tool" by L. A. Allaud and J. Ringot, Reprinted from "The Log Analyst", May-Jun. 1969.

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