发明授权
- 专利标题： Heater cable and method for manufacturing
- 专利标题（中）： 加热电缆及制造方法
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申请号： US10781365申请日： 2004-02-18
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公开(公告)号： US07044223B2公开(公告)日： 2006-05-16
- 发明人: Larry V. Dalrymple , David H. Neuroth , Phillip R. Wilbourn , Don C. Cox , Thomson H. Wallace
- 申请人： Larry V. Dalrymple , David H. Neuroth , Phillip R. Wilbourn , Don C. Cox , Thomson H. Wallace
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Bracewell & Giuliani LLP
- 主分类号： E21B36/04
- IPC分类号： E21B36/04
摘要：
A method for manufacturing an electrical cable provides an electrical cable suitable for use in heating wells. An elastomeric jacket is extruded over insulated conductors. A stainless steel plate is rolled around the jacket to form a cylindrical coiled tubing having a seam. The seam is welded, then the tubing is swaged down to a lesser diameter to cause the tubing to frictionally grip the jacket. A recess maybe formed in the jacket adjacent the seam to avoid heat damage from the welding process.
公开/授权文献
- US20040163801A1 Heater Cable and method for manufacturing 公开/授权日：2004-08-26
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