发明名称 |
Recirculating pump for electrical submersible pump system |
摘要 |
An electrical submersible pump (ESP) having tubing for recirculating fluid below the motor of the ESP for cooling purposes. By recirculating fluid below the motor, an ESP can then be placed below the perforations in a well casing, thereby taking advantage of gas separation from the fluid before the fluid enters the pump intake. Three embodiments are disclosed: a fluid tap in the production pump housing to which tubing is connected to recirculate the fluid; a recirculation pump that shares an intake with the production pump wherein the recirculation pump is used to recirculate the fluid; and a recirculation pump and a production pump that each have a separate intake wherein the recirculation pump is used to recirculate the fluid.
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申请公布号 |
US5845709(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19960587011 |
申请日期 |
1996.01.16 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
MACK, JOHN J.;WILSON, BROWN LYLE |
分类号 |
E21B43/12;F04B47/06;F04D1/10;F04D13/10;F04D29/58;(IPC1-7):E21B43/16;E21B43/38 |
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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