公开(公告)号：US10472923B2

公开(公告)日：2019-11-12

申请号：US14533639

申请日：2014-11-05

Applicant: M-I L.L.C.

Inventor： Shiva Phani Kapavarapu ,  Christopher Nicholson ,  Charles Patrick

IPC: E21B34/02 ,  E21B44/06 ,  F04B49/00 ,  F17D3/00 ,  F16K47/00 ,  F16L58/04

Abstract: A fluid choke may include a housing and a shuttle configured to move within an interior chamber of the housing. The housing may have a fluid inlet channel and a fluid outlet channel. The shuttle may have a gate connected to an end of the shuttle and the gate may be configured to mate with a seat located in the housing at the fluid outlet channel. The shuttle may be moved within the interior chamber by a pressurized hydraulic fluid configured to apply a hydraulic pressure to a peripheral portion of the shuttle, an inner portion of the shuttle, and the gate.