发明名称 |
Eccentric safety valve |
摘要 |
A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly is eccentric relative to the flow passage. A well tool can include a magnetic coupling between magnet devices. One magnet device includes a series of magnets which are unequally spaced circumferentially about the other magnet device. Another safety valve can include a longitudinally extending flow passage, a closure device which selectively permits and prevents flow through the flow passage, and an outer diameter which is eccentric relative to the flow passage. |
申请公布号 |
US8869881(B2) |
申请公布日期 |
2014.10.28 |
申请号 |
US201314033244 |
申请日期 |
2013.09.20 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Vick, Jr. James D.;Williamson, Jr. Jimmie R.;Scott Bruce E. |
分类号 |
E21B17/02;E21B34/06;E21B34/00 |
主分类号 |
E21B17/02 |
代理机构 |
Smith IP Services, P.C. |
代理人 |
Smith IP Services, P.C. |
主权项 |
1. A well tool, comprising:
a magnetic coupling between first and second magnet devices, wherein the second magnet device includes a series of magnets which are unequally spaced circumferentially about the first magnet device, wherein a first circumferential spacing between the magnets is less than a second circumferential spacing between the magnets, wherein the second magnet device is disposed within a wall of a pressure bearing housing, and wherein at least one line is positioned in the second circumferential spacing between the magnets. |
地址 |
Houston TX US |