Downhole tool delivery system

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 23/00 (2006.01) E21B 47/01 (2006.01)

Patent

CA 2711318

An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.

L'invention concerne un appareil utilisable pour le déploiement d'outils de fond. L'appareil comporte de préférence au moins un tubage de puits enterré, un boîtier formant compartiment électronique étanche, une partie fixation d'outil et un premier noyau à passage interne. Le boîtier est de préférence configuré pour coulisser dans le tubage du puits. Le compartiment électronique étanche abrite un processeur et un système de détection de position, qui communique avec le processeur tout en interagissant de façon exclusive avec des éléments caractéristiques du tubage du puits pour déterminer la position du boîtier dans ce dernier. Un mode de réalisation préféré inclut en outre un bouchon de puits fixé sur la partie fixation d'outil, ce bouchon de puits comportant un second noyau à passage interne surmonté d'un bouchon de noyau équipé d'un mécanisme de libération de bouchon de noyau qui, après activation, assure la séparation entre le second noyau à passage interne et le bouchon de noyau, permettant ainsi au fluide de circuler à travers lesdits premier et second noyaux à passage interne.

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