E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/12 (2006.01)
Patent
CA 2596349
The present invention provides an electromagnetic telemetry apparatus (100) and methods that include an insulating connector (110) that comprises an outer metallic female member that has an inner conical longitudinal surface. In one embodiment, a tubular metallic male member is disposed in the female member, thereby crating an axial conical gap (210) between the male and female members. A conical metallic sleeve (215) having dimensions that substantially correspond to the axial conical gap is disposed in the axial conical gap. The outer tubular surface of the male member is coated with an insulating material, such as a ceramic material. A shoulder (218) at one end of the male member prevents axial movement of the sleeve in one direction and a parallel key (262) between the female member and a stabilizer member prevents rotational movement between the male and female members . The sleeve remains stationary relative to the insulated surface of the male member when the male and female members move longitudinally relative to each other.
La présente invention concerne un appareil de télémétrie électromagnétique (100) ainsi que des procédés contenant un connecteur isolant (110) qui inclut un élément femelle métallique extérieur ayant une surface longitudinale conique interne. Dans un mode de réalisation, un élément métallique tubulaire mâle est placé sur l'élément femelle, créant ainsi un espace conique axial (210) entre les éléments mâle et femelle. Un manchon métallique conique (215), dont les dimensions correspondent sensiblement à l'espace conique axial, y est disposé. La surface tubulaire extérieure de l'élément mâle est recouverte d'un matériau isolant, par exemple un matériau céramique. Un épaulement (218), placé à une extrémité de l'élément mâle, empêche le mouvement axial du manchon dans une direction et une clé parallèle (262) entre l'élément femelle et un élément stabilisateur évite le mouvement rotatif entre l'élément mâle et l'élément femelle. Le manchon reste stationnaire par rapport à la surface isolée de l'élément mâle lorsque les éléments mâle et femelle se déplacent dans le sens longitudinal l'un par rapport à l'autre.
Krueger Volker
Peter Andreas
Witte Johannes
Baker Hughes Incorporated
Sim & Mcburney
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