Improved slick line system with real-time surface display

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 47/06 (2006.01) E21B 17/02 (2006.01) E21B 17/20 (2006.01) E21B 19/22 (2006.01) E21B 23/14 (2006.01) E21B 47/10 (2006.01) E21B 47/12 (2006.01) G01V 3/18 (2006.01) G01V 3/20 (2006.01) G01V 3/34 (2006.01) G01V 3/36 (2006.01) G01V 11/00 (2006.01) H01B 13/26 (2006.01)

Patent

CA 2168651

An apparatus (2) and method is provided whereby a small diameter, single conductor wire-line (22) is combined with standard slick-line equipment to obtain "real- time" surface display of borehole logging data from well-logging tools attached to the end of wire-line (20). A helically-formed, insulated conductor (20), which coextends within the hollow space (19) of conductive tube (18) to form an annular space (21) between the insulation (23) [on stranded 20 gauge silver-plated copper conductor (22)] and inner wall of the tube (18) [1/8" outside diameter stainless steel tubing with about 0.022" wall thickness], functionally replaces standard solid conductor wire of 1/8" diameter for lowering tools down into a wellbore and for transmitting tool-generated signals to a surface-located display unit.

Un appareil (2) et un procédé permettent de combiner un câble de forage monoconducteur (22) avec un ensemble tube à garnissage standard pour obtenir en surface un affichage en temps réel des données de diagraphie émanant des outils de mesure fixés à l'extrémité du câble (20). Un conducteur hélicoïdal isolé (20), lequel se trouve à l'intérieur de l'espace creux (19) du tube conducteur (18) pour former un espace annulaire (21) entre l'isolation (23) [sur conducteur tressé cuivre argenté (22) de calibre (20)] et la paroi intérieure du tube (18) [tube acier inoxydable de diamètre externe 1/8 de pouce et d'épaisseur de paroi d'environ 0,022 pouce], remplace de manière fonctionnelle le câble à conducteur plein standard de diamètre 1/8 de pouce pour descendre des outils dans un puits de forage et pour transmettre des signaux produits par ces outils à une unité d'affichage située en surface.

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