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发明名称
IMPROVED DOWN HOLE OIL AND GAS WELL HEATING SYSTEM AND METHOD FOR DOWN HOLE HEATING OF OIL AND GAS WELLS
摘要
申请公布号
EP1751394(A2)
申请公布日期
2007.02.14
申请号
EP20050711858
申请日期
2005.01.24
申请人
HILL, WILLIAM L.
发明人
HILL, WILLIAM L.
分类号
E21B43/24;E21B36/04
主分类号
E21B43/24
代理机构
代理人
主权项
地址
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