公开(公告)号：US09441446B2

公开(公告)日：2016-09-13

申请号：US13885923

申请日：2012-08-31

申请人： Michael Linley Fripp ,  Donald G. Kyle ,  Jeff Huggins

发明人： Michael Linley Fripp ,  Donald G. Kyle ,  Jeff Huggins

IPC分类号： E21B29/02 ,  E21B33/12 ,  E21B33/134 ,  E21B23/04 ,  E21B34/06

CPC分类号： E21B33/12 ,  E21B23/04 ,  E21B29/02 ,  E21B33/1208 ,  E21B33/134 ,  E21B34/063

摘要： Methods and apparatus are presented for removing a degradable barrier plug positioned in a downhole axial passageway. The degradable plug is initially isolated from fluid by at least one solid, non-degradable cover. A first electronic rupture disc assembly is actuated to open a passageway to the degradable plug. A second electronic rupture disc assembly is actuated to allow a fluid, such as water from a supply chamber, to flow into contact with the plug. The plug is substantially degraded, although the cover remains. A third electronic rupture disc assembly is actuated to bend and then cover the remaining solid cover, thereby opening the axial passageway and protecting later-introduced tools.

摘要翻译： 提出了用于去除位于井下轴向通道中的可降解阻挡塞的方法和装置。 可降解塞头最初通过至少一个固体不可降解的盖分离流体。 第一电子破裂盘组件被致动以打开到可降解塞子的通道。 第二电子破裂盘组件被致动以允许诸如来自供应室的水的流体与插塞接触。 即使盖子保持不动，插头也大大降级。 第三个电子破裂盘组件被致动以弯曲并且然后覆盖剩余的固体盖，从而打开轴向通道并保护稍后引入的工具。