Wireless downhole well interval inflow and injection control

Details Wireless downhole well interval inflow and injection control Wireless downhole well interval inflow and injection control

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) E21B 34/16 (2006.01) E21B 47/12 (2006.01) H04B 5/00 (2006.01)

Patent

CA 2401709

Apparatus and methods of electrically controlling downhole well interval inflow and/or injection. The downhole controllable well section (71) comprises a communications and controle module (80), a sensor (82), an electrically controllable valve (84), and an induction choke (90). The electrically controllable valve (84) is adpated to regulate flow between an exterior of the tubing (40) and an interior (104) of the tubing. Power and signal transmission between surface and downhole is carried out via the tubing (40) and/or the casing (30). When there are multiple downhole controllable well sections (72-75), flow inhibitors (61-65) separate the well sections.

L'invention concerne un un appareil et des procédés permettant de contrôler électriquement l'entrée et/ou l'injection d'un puits de fond. La section de puits (71) contrôlable comprend une unité (80) de communication et de commande, un capteur (82), une vanne (84) à commande électrique et une duse à induction (90). La vanne (84) à commande électrique est conçue pour réguler le débit entre l'extérieur et l'intérieur (104) de la colonne (40). La transmission du courant et des signaux entre la surface et le fond du puits est assurée par la colonne (40) et/ou le tubage (30). Lorsqu'il existe plusieurs sections (72-75) de puits contrôlables au fond du trou, elles sont séparées par des inhibiteurs d'écoulement.

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