| 发明名称 |
MAGNETIC SPRING BOOSTER FOR SUBSURFACE SAFETY VALVE |
| 摘要 |
Disclosed is a subsurface safety valve with a magnetic booster feature. One disclosed safety valve includes a housing, a flow tube reciprocably disposed between an upper position and a lower position within the housing, a first magnetic element coupled to the housing, and a second magnetic element coupled to the flow tube and configured such that interaction of the first and second magnetic elements induces at least one of a first force on the flow tube when the flow tube is in the upper position and a second force on the flow tube when the flow tube is in the lower position. |
| 申请公布号 |
US2016265309(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201314395782 |
申请日期 |
2013.12.16 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Vick, JR. James Dan |
| 分类号 |
E21B34/10;F16K31/122 |
主分类号 |
E21B34/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A safety valve for use in a subterranean well, the safety valve comprising:
a housing; a flow tube reciprocably disposed between an upper position and a lower position within the housing; a first magnetic element coupled to the housing; and a second magnetic element coupled to the flow tube and configured such that interaction of the first and second magnetic elements induces at least one of a first force on the flow tube when the flow tube is in the upper position and a second force on the flow tube when the flow tube is in the lower position. |
| 地址 |
Houston TX US |
