发明名称 |
RECIRCULATION PUMPING SYSTEM FOR INSTALLATION BELOW THE PERFORATIONS IN A CASED WELL BORE |
摘要 |
An electrical submersible pump (ESP) having a means to recirculate fluid below the motor of the ESP for cooling purposes. By using a recirculating means, 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. |
申请公布号 |
CA2194257(C) |
申请公布日期 |
2005.03.22 |
申请号 |
CA19972194257 |
申请日期 |
1997.01.02 |
申请人 |
OIL DYNANICS, INC. |
发明人 |
WILSON, BROWN LYLE;MACK, JOHN J. |
分类号 |
E21B43/12;F04B47/06;F04D1/10;F04D13/10;F04D29/58 |
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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