Formation density tool for use in cased and open holes

Details Formation density tool for use in cased and open holes Formation density tool for use in cased and open holes

G - Physics

01

V

G01V 5/12 (2006.01)

Patent

CA 2203270

An improved formation density logging tool is provided that is effective in cased holes. The improved tool utilizes three detectors: a first detector (20) for primarily compensating for the casing; a second detector (22) for primarily compensating for the cement; and a third detector (24) for providing formation information. The tool comprises improvement over currently-available two-detector density tools which are normally useful only in open holes. It is anticipated that the tool provided herein will be useful in both open and cased holes.

Outil perfectionné de diagraphie de la densité des formations, utilisable dans les trous tubés. Cet outil perfectionné utilise trois détecteurs: un premier détecteur (20) destiné principalement à compenser le tubage; un deuxième détecteur (22) destiné principalement à compenser le ciment; et un troisième détecteur (24) destiné à fournir des informations concernant la formation. Cet outil constitue un perfectionnement des outils actuels à deux détecteurs qui ne peuvent normalement s'utiliser que dans les trous non tubés. On s'attend à ce que l'outil ci-décrit sera utilisable aussi bien dans les trous non tubés que dans les trous tubés.

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