| 发明名称 |
HEATER CABLE INSTALLATION |
| 摘要 |
<p>HEATER CABLE INSTALLATION A well heater is installed in a well by spooling electrical cable assemblies for heating and supplying power, in proper sequence, on at least one spooling means, unspooling them and attaching them to a heat- and tension-stable support means as the resulting assembly is drawn into the well by a weight attached to the support means.</p> |
| 申请公布号 |
CA1250339(A) |
申请公布日期 |
1989.02.21 |
| 申请号 |
CA19850495850 |
申请日期 |
1985.11.21 |
| 申请人 |
SHELL CANADA LIMITED |
发明人 |
VAN EGMOND, CORNELIS F.H.;VANMEURS, PETER |
| 分类号 |
E21B36/04;(IPC1-7):E21B36/04 |
主分类号 |
E21B36/04 |
| 代理机构 |
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代理人 |
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