发明名称 |
PROCEDE ET DISPOSITIF DE CONTROLE DE DEBIT EN FOND DE PUITS, A COMMANDE DECOUPLEE |
摘要 |
A flow rate control device (18) placed down an oil well in production comprises holes (24) formed in the production tubing (16), a closure sleeve (26) suitable for sliding facing the holes (24), an actuator (31) disposed eccentrically relative to the tubing (16), and an intermediate part (29). The intermediate part (29) is guided out the tubing (16) in a manner such as to withstand the tilting torque due to the eccentricity of the actuator (31). A coupling (46) that is flexible except in the direction in which the sleeve is moved connects the part (29) to the closure sleeve (26) symmetrically about the axis of the tubing (16). The resulting decoupling guarantees that the sleeve (26) is self-centering, which improves the life-span of the device (18) significantly.
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申请公布号 |
FR2790510(A1) |
申请公布日期 |
2000.09.08 |
申请号 |
FR19990002777 |
申请日期 |
1999.03.05 |
申请人 |
SERVICES PETROLIERS SCHLUMBERGER |
发明人 |
HIRON STEPHANE;RAYSSIGUIER CHRISTOPHE;TOURILLON VINCENT |
分类号 |
E21B34/06;(IPC1-7):E21B34/06;E21B43/12 |
主分类号 |
E21B34/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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