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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0385208 (1989-07-25) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 25 인용 특허 : 11 |
A centrifugal pump is lowered into a well and retrieved from the well by means of its power cable. The power cable has a single conductor. The pump has a downhole electrical motor which is three-phase. Single-phase AC power will be supplied from the surface down the conductor, with the return being
In a well having casing containing formation fluid, an improved means for pumping the fluid to the surface, comprising in combination: a centrifugal pump located within the well; a submersible three-phase electrical motor located within the well and coupled to the pump for driving the pump; a cable
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