Naturally occurring radioactive material contamination detection

Details Naturally occurring radioactive material contamination detection Naturally occurring radioactive material contamination detection

1995-09-11

1997-10-07

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

G01V 504

Patent

active

056751460

ABSTRACT:
Radioactive contamination on tubing is detected as the tubing is withdrawn from a wellbore. The tubing is moved past a detector located on the wellhead, preferably through an annular shaped detector, and means responsive to the detected level of radiation exceeding predetermined limits activate both an alarm to gain the operator's attention and means to apply indicia to the contaminated tubing.

REFERENCES:
patent: 3678271 (1972-07-01), Groezinger
patent: 4623792 (1986-11-01), Bohme et al.
patent: 5038033 (1991-08-01), Carroll et al.
Smith, "Radioactive-Scale Formation", J. Petroleum Tech., Jun. 1987, pp. 697-706.

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