Method and apparatus for logging media of a borehole

Details Method and apparatus for logging media of a borehole Method and apparatus for logging media of a borehole

1991-11-12

1994-07-05

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250262, 378 89, 328233, G01V 508

Patent

active

053269705

ABSTRACT:
The method and apparatus for logging the media of an earth formation wherein repetitive bursts of x-rays are emitted that penetrate the media with a portion of these x-rays to be scattered and picked up by a plurality of detectors to detect certain physical properties of the media such as density and lithology. The x-rays are produced by an electron beam striking an x-ray target. This electron beam is produced electrically within an electron beam generator and then accelerated through a linear induction accelerator. The linear induction accelerator, in contrast to other alternatives, is of simple design and inherently insensitive to mechanical shock and vibration and to variations in operating temperature.

REFERENCES:
patent: 3218562 (1965-11-01), Serduke
patent: 3976879 (1976-08-01), Turcotte
patent: 4093854 (1978-06-01), Turcotte et al.
patent: 4928020 (1990-05-01), Brix et al.
patent: 5122662 (1992-06-01), Chen et al.
Belkin, et al, "Measuring The Density of Rocks in Boreholes by Means of a Gamma Generator", Sep. 21, 1975 pp. 569-572.

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