发明名称 AC powered service rig
摘要 An electrically-powered service rig utilizes an engine-driven generator to power a propulsion system, a drawworks system and a sandline system, all mounted on a single mobile platform. The rig utilizes lightweight permanent magnet motors to enable integration of the systems onto a single mobile platform which meets transport regulations. The rig's power plant is capable of powering other onsite equipment such as mud pump motors through use of umbilicals connected to the engine-driven generator.
申请公布号 US7717193(B2) 申请公布日期 2010.05.18
申请号 US20070877597 申请日期 2007.10.23
申请人 NABORS CANADA 发明人 EGILSSON TED;ANDREASEN KEN
分类号 E21B44/00;E21B19/00 主分类号 E21B44/00
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