Flow control device,申请号US20000731396-传众专利搜索

Flow control device

申请公布号：US6494265(B2)

申请号：US20000731396

申请日期：2000.12.04

申请公布日期：2002.12.17

申请人：

ABB OFFSHORE SYSTEMS LIMITED

发明人：WILSON JAMES B;KING CHRISTOPHER R

分类号：E21B34/06;E21B34/14;(IPC1-7):E21B34/14;E21B34/00

主分类号：E21B34/06

摘要：A flow control device comprises an outer sleeve having at least one aperture through its wall, and an inner sleeve having at least one aperture through its wall. Relative sliding movement of the sleeves is provided between "open" positions allowing for variable flow of fluid through the apertures of the sleeves and "closed" positions. A pressure-reducing region is arranged to reduce the pressure of fluid flowing through at least one aperture of one of the sleeves.