发明名称 |
APPARATUS FOR CONNECTING SUCKER RODS |
摘要 |
A apparatus having an elongate body having an exterior surface, a first end and a second end. A first coupling is positioned at the first end which adapted to mate with a first sucker rod. A second coupling is positioned at the second end which is adapted to mate with a second sucker rod to form a sucker rod string. At least one helical fin spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.
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申请公布号 |
CA2500740(C) |
申请公布日期 |
2010.06.22 |
申请号 |
CA20052500740 |
申请日期 |
2005.03.04 |
申请人 |
GARRISON, DARRYL J.;WOLLMANN, ARNOLD |
发明人 |
WOLLMANN, ARNOLD |
分类号 |
E21B17/02;E21B17/22;F16L15/08 |
主分类号 |
E21B17/02 |
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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