公开(公告)号：US20180010428A1

公开(公告)日：2018-01-11

申请号：US15242310

申请日：2016-08-19

Applicant: BAKER HUGHES INCORPORATED

Inventor： KOUSHA GOHARI ,  Heikki Armas Jutila ,  Carlos Mascagnini ,  Christopher Harper ,  Peter J. Kidd

IPC: E21B43/12 ,  E21B34/06 ,  E21B43/14 ,  E21B33/12 ,  E21B43/32 ,  E21B43/20

CPC classification number: E21B43/12 ,  E21B33/12 ,  E21B34/06 ,  E21B43/14 ,  E21B43/20 ,  E21B43/32

Abstract: The flow control device comprises one or more stacked spiral paths where the shape of an inlet to an end of a spiral has a taper on one or more sides to gradually increase the polymer velocity to eliminate rapid acceleration points as the flow enters the spiral path. The entrance with its taper can be curved to get into the spiral. The spiral can be entered tangentially or radially or axially.