Method for measuring height of fill in a production tubing/casin

Details Method for measuring height of fill in a production tubing/casin Method for measuring height of fill in a production tubing/casin

1995-09-18

1996-10-29

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

2503571, G01V 500

Patent

active

055699146

ABSTRACT:
The location in a wellbore of the top of a quantity of fill material which is sufficient to restrict flow in a tubing/casing annulus at a location deep in a well is determined by dropping a radioactive source through the annulus so that it falls to the top of the fill material. The depth of the thus deposited radioactive source is detected by radiation measurements, and the measured depth infers the location of the top of the fill material.

REFERENCES:
patent: 2540049 (1951-01-01), Hinson
patent: 2972050 (1961-02-01), Allen
patent: 3796883 (1974-03-01), Smith et al.
patent: 3835317 (1974-09-01), Vann
patent: 3959647 (1976-05-01), Groddle
patent: 4178506 (1979-12-01), Fertl
patent: 4493999 (1985-01-01), Catchen
patent: 5182051 (1993-01-01), Bandy et al.

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