Method of well logging in fractured subterranean formation

Details Method of well logging in fractured subterranean formation Method of well logging in fractured subterranean formation

1989-05-12

1995-04-04

Hannaher, Constantine

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250256, 250259, G01V 504

Patent

active

054040108

ABSTRACT:
In a method of logging a well in a subterranean formation which formation has been fractured by injecting proppant tagged with at least one radioactive material into the formation through the well, the improvement comprising: utilizing a spectral gamma-ray tool in performing the logging. By analyzing one or more selected ratios of counting rates at certain energy areas of the spectrum one can determine the vertical height of the fracturing in the formation.

REFERENCES:
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patent: 4439677 (1984-03-01), Martin
patent: 4612439 (1986-09-01), Chace
patent: 4698499 (1987-10-01), Smith, Jr.
patent: 4712424 (1987-12-01), Herron
patent: 4825073 (1989-04-01), Smith, Jr. et al.
patent: 4857729 (1989-08-01), Gadeken et al.

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