发明名称 Non-ferromagnetic overburden casing
摘要 Systems, methods, and heaters for treating a subsurface formation are described herein. At least one system for electrically insulating an overburden portion of a heater wellbore is described. The system may include a heater wellbore located in a subsurface formation and an electrically insulating casing located in the overburden portion of the heater wellbore. The casing may include at least one non-ferromagnetic material such that ferromagnetic effects are inhibited in the casing.
申请公布号 US7793722(B2) 申请公布日期 2010.09.14
申请号 US20070788871 申请日期 2007.04.20
申请人 SHELL OIL COMPANY 发明人 VINEGAR HAROLD J.;HARRIS CHRISTOPHER KELVIN;MASON STANLEY LEROY
分类号 E21B17/00;E21B43/24 主分类号 E21B17/00
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