The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2001
Filed:
Mar. 02, 2000
Stéphane Hiron, Igny, FR;
Vincent Tourillon, Paris, FR;
Christophe Rayssiguier, Houston, TX (US);
Schlumberger Technology Corp., Sugar Land, TX (US);
Abstract
A flow rate control device (,) placed down an oil well in production comprises holes (,) formed in the production tubing (,), a closure sleeve (,) suitable for sliding facing the holes (,), an actuator (,) disposed eccentrically relative to the tubing (,), and an intermediate part (,). The intermediate part (,) is guided on the tubing (,) in a manner such as to withstand the tilting torque due to the eccentricity of the actuator (,). A coupling (,) that is flexible except in the direction in which the sleeve is moved connects the part (,) to the closure sleeve (,) symmetrically about the axis of the tubing (,). The resulting decoupling guarantees that the sleeve (,) is self-centering, which improves the life-span of the device (,) significantly.