公开(公告)号：US20200182009A1

公开(公告)日：2020-06-11

申请号：US16216399

申请日：2018-12-11

申请人： Karsten Fuhst ,  Volker Peters ,  Christian Preiser ,  Nils Schneider ,  Ingo Roders ,  Natalja Wendt ,  Sebastian Jung ,  Thomas Kruspe

发明人： Karsten Fuhst ,  Volker Peters ,  Christian Preiser ,  Nils Schneider ,  Ingo Roders ,  Natalja Wendt ,  Sebastian Jung ,  Thomas Kruspe

IPC分类号： E21B33/12 ,  E21B23/04

摘要： A downhole tool including a body having a hydraulic fluid chamber, and a flexible multi-layer barrier impermeable to gas and water mounted at the body separating the hydraulic fluid chamber from fluids external to the body. The flexible multi-layer barrier including a first elastomeric layer, a second elastomeric layer, and a gas impermeable layer arranged between the first elastomeric layer and the second elastomeric layer, the gas impermeable layer being formed from a metal layer.

公开(公告)号：US11111752B2

公开(公告)日：2021-09-07

申请号：US16216399

申请日：2018-12-11

申请人： Karsten Fuhst ,  Volker Peters ,  Christian Preiser ,  Nils Schneider ,  Ingo Roders ,  Natalja Wendt ,  Sebastian Jung ,  Thomas Kruspe

发明人： Karsten Fuhst ,  Volker Peters ,  Christian Preiser ,  Nils Schneider ,  Ingo Roders ,  Natalja Wendt ,  Sebastian Jung ,  Thomas Kruspe

IPC分类号： E21B33/12 ,  E21B23/04

摘要： A downhole tool including a body having a hydraulic fluid chamber, and a flexible multi-layer barrier impermeable to gas and water mounted at the body separating the hydraulic fluid chamber from fluids external to the body. The flexible multi-layer barrier including a first elastomeric layer, a second elastomeric layer, and a gas impermeable layer arranged between the first elastomeric layer and the second elastomeric layer, the gas impermeable layer being formed from a metal layer.