发明名称 |
IMPROVED PUMP FOR LIFTING FLUID FROM A WELLBORE |
摘要 |
The invention relates to a pump for lifting fluid from a wellbore. The pump comprises a first piston and a second piston, each piston being configured for linear reciprocal movement generated by magnetic fields. A control system is operable to control the magnetic fields to generate substantially concurrent opposed movement of the first and second pistons so as to provide a substantially continuous flow of fluid from the wellbore. The control system may comprise one or two power cables connected to Variable Speed Drives (VSDs). |
申请公布号 |
WO2014044334(A3) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2012EP76657 |
申请日期 |
2012.12.21 |
申请人 |
STATOIL PETROLEUM AS |
发明人 |
BUGTEN, BJARNE;HEGGUM, GEIR;VINGE, TORSTEIN;SNEFJELLÅ, ØYVIND HOLM |
分类号 |
E21B43/12;F04B17/04;F04B47/06 |
主分类号 |
E21B43/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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