发明授权
- 专利标题： Conductor-in-conduit temperature limited heaters
- 专利标题（中）： 电导管温度限制加热器
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申请号： US10693819申请日： 2003-10-24
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公开(公告)号： US07121341B2公开(公告)日： 2006-10-17
- 发明人: Harold J. Vinegar , Chester Ledlie Sandberg , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
- 申请人： Harold J. Vinegar , Chester Ledlie Sandberg , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
- 申请人地址： US TX Houston
- 专利权人： Shell Oil Company
- 当前专利权人： Shell Oil Company
- 当前专利权人地址： US TX Houston
- 主分类号： E21B43/24
- IPC分类号： E21B43/24 ; E21B36/04
摘要：
A heater may include an electrical conductor. Applying alternating current to the electrical conductor may generate resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a non-ferromagnetic material. The heater may provide a reduced amount of heat above or near a selected temperature. A conduit may at least partially surround the electrical conductor. A centralizer may maintain a separation distance between the electrical conductor and the conduit.
公开/授权文献
- US20040177966A1 Conductor-in-conduit temperature limited heaters 公开/授权日：2004-09-16
信息查询
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