发明名称 |
SUCKER ROD WELL PUMP WITH RECIPROCATING BARREL |
摘要 |
Fluid pumping apparatus for pumping fluids from a well comprising a downhole pump disposed near the lower end of a production string and including a tubular pump barrel (20) and a tubular pump plunger (30), concentrically disposed in the pump barrel. A standing valve (23) is provided in the fixed pump barrel and a traveling valve (31) is provided in the reciprocating plunger. A power device has a cyclindrical polished rod (36) with the diameter at least as great as the outside diameter of the pump plunger.
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申请公布号 |
WO0157399(A1) |
申请公布日期 |
2001.08.09 |
申请号 |
WO2001US03106 |
申请日期 |
2001.01.31 |
申请人 |
SKILLMAN PUMP COMPANY, LLP |
发明人 |
SKILLMAN, MILTON, M. |
分类号 |
F04B11/00;F04B47/02;(IPC1-7):F04B19/02 |
主分类号 |
F04B11/00 |
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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