| 发明名称 |
VISCOUS DAMPING SYSTEMS FOR HYDROSTATICALLY SET DOWNHOLE TOOLS |
| 摘要 |
A system for activating a downhole tool may include a mandrel, a first piston disposed about the mandrel and defining a piston chamber therebetween, a flow restrictor positioned in the piston chamber and separating the piston chamber into an upper chamber located uphole of the flow restrictor and a lower chamber located downhole of the flow restrictor, and a second piston disposed in the upper chamber. The flow restrictor may define at least one orifice extending axially therethrough and, a damping fluid may reside in the piston chamber downhole from the second piston. |
| 申请公布号 |
US2017107776(A1) |
申请公布日期 |
2017.04.20 |
| 申请号 |
US201514904709 |
申请日期 |
2015.05.28 |
| 申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Sim Nicholas Kok Jun;Kam Iris Sok Yee |
| 分类号 |
E21B23/04;E21B23/06 |
主分类号 |
E21B23/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A system for activating a downhole tool, comprising:
a mandrel; a first piston disposed about the mandrel and defining a piston chamber therebetween; a flow restrictor positioned in the piston chamber and separating the piston chamber into an upper chamber located uphole of the flow restrictor and a lower chamber located downhole of the flow restrictor, the flow restrictor defining at least one orifice extending axially therethrough; and a second piston disposed in the upper chamber, a damping fluid residing in the piston chamber downhole from the second piston. |
| 地址 |
Houston TX US |
