Multiple interventionless actuated downhole valve and method

Details Multiple interventionless actuated downhole valve and method Multiple interventionless actuated downhole valve and method

E - Fixed Constructions

21

B

E21B 34/10 (2006.01) E21B 34/06 (2006.01) E21B 34/14 (2006.01)

Patent

CA 2436248

[0035] The multiple interventionless actuated downhole valve includes a valve movable between an open and a closed position to control communication between an annular region surrounding the valve and an internal bore and more specifically controlling communication between above and below the valve, and at least two remotely operated interventionless actuators in operational connection with the valve, wherein each of the interventionless actuators may be operated independently by absolute tubing pressure, absolute annulus pressure, differential pressure from the tubing to the annulus, differential pressure between the annulus and the tubing, tubing or annulus multiple pressure cycles, pressure pulses, acoustic telemetry, electromagnetic telemetry or other types of wireless telemetry to change the position of the valve and allowing the valve to be continually operated by mechanical apparatus.

Clapet de fond actionné sans intervention comprenant un clapet dont la position ouverte ou fermée contrôle la communication entre une région annulaire entourant le clapet et un forage interne et, plus spécifiquement, qui contrôle la communication entre le dessus et le dessous du clapet et au moins deux actionneurs commandés à distance sans intervention ayant une connexion fonctionnelle avec le clapet. Chacun de ces actionneurs peut fonctionner de façon indépendante par la pression tubulaire (absolue), la pression annulaire (absolue), la pression différentielle à partir de l'espace tubulaire jusqu'à l'espace annulaire, la pression différentielle entre l'espace annulaire et l'espace tubulaire, les multiples cycles de pression tubulaire ou annulaire, les impulsions de pression, la télémétrie acoustique, la télémétrie électromagnétique ou d'autres types de télémétrie sans fil pour changer la position du clapet et lui permettre d'être continuellement manoeuvré par un appareil mécanique.

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