Flow control in a wellbore

Details Flow control in a wellbore Flow control in a wellbore

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) E21B 34/10 (2006.01) E21B 34/14 (2006.01) E21B 43/00 (2006.01) E21B 43/14 (2006.01)

Patent

CA 2393504

A completion string for use in a wellbore includes a tubing (10) having a bore and a housing (100) pro-viding a main bore (102) communicating with the tubing bore and further defining plural side bores (104) generally parallel to each other. A plurality of valves (30) are positioned proximal respective side bores (104) to control fluid flow. An actuator is coupled to the valves (30) to actuate the valves (30) to at least open and closed positions. The valves (30) may be part of tubular flow elements (101) mounted to the housing, each tubular flow element (101) including a bore that forms part of a respective side bore (104). Each valve (30) may include a sleeve valve or a disk valve. The housing (100) may include a side pocket mandrel.

Cette colonne de complétion, utilisable dans un puits de forage, comporte une tuyauterie (10) délimitant un trou de forage et une gaine (100) formant un trou de forage principal (102) en communication avec le trou de forage susmentionné et délimitant plusieurs trous de forage latéraux (104), généralement parallèles les uns aux autres. Plusieurs vannes (30) sont placées à proximité des trous de forage latéraux (104) afin de réguler le flux de fluide. Un dispositif de commande est relié aux vannes (30) afin de les mettre, à tout le moins, en position ouverte ou fermée. Ces vannes (30) peuvent faire partie des éléments tubulaires (101), permettant le passage du flux de fluide, montés sur la gaine susmentionnée, chacun de ces éléments (101) comportant un trou de forage formant une partie d'un trou de forage latéral respectif (104). Chaque vanne (30) peut comporter un manchon ou un disque. La gaine (100) peut comporter un mandrin de poche latérale.

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