Method and apparatus for downhole activated wellbore completion

Details Method and apparatus for downhole activated wellbore completion Method and apparatus for downhole activated wellbore completion

E - Fixed Constructions

21

B

E21B 43/112 (2006.01) E21B 43/11 (2006.01) E21B 43/116 (2006.01)

Patent

CA 2172047

A wellbore completion system utilizes casing conveyed devices (50) to establish a fluid communication path between a downhole formation (F) and the casing string (60). Extendible pistons (12) are mounted in the wall of the casing pipe string (60) and are extended toward contact with the downhole formation (F) after the casing (60) is set. Explosives (58, 72, 74) in the pistons are activated by a separately conveyed activation system (84, 89, 91, 93) which produces a pressure wave to detonate the explosives (58, 72, 74) and establish fluid communication between the casing (60) and formation (F).

Un système de conditionnement de puits de forage comprend l'utilisation de dispositifs transportés par tubage pour établir une voie de communication fluidique entre une formation de fond (F) et la colonne de tubage (60). Des pistons extensibles (12) sont montés dans la paroi de la colonne de tubage (60) et sont étendus afin d'entrer en contact avec ladite formation (F) après que la colonne (60) a été installée. Des explosifs (58, 72, 74) placés dans les pistons sont déclenchés par l'intermédiaire d'un système de déclenchement separément transporté (84, 89, 91, 93) qui produit une onde de pression provoquant la détonation des explosifs (58, 72, 74) et établissant une communication fluidique entre la colonne (60) et la formation (F).

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