| 发明名称 |
BALL DROP WELLHEAD CONTROL APPARATUS |
| 摘要 |
A ball drop wellhead control apparatus provides a ball controller between a frac ball drop or frac ball injector used to drop frac balls into a frac fluid stream being pumped into a subterranean well.
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| 申请公布号 |
US2013153237(A1) |
申请公布日期 |
2013.06.20 |
| 申请号 |
US201113331903 |
申请日期 |
2011.12.20 |
| 申请人 |
MCGUIRE BOB;STINGER WELLHEAD PROTECTION, INC. |
发明人 |
MCGUIRE BOB |
| 分类号 |
E21B34/00 |
主分类号 |
E21B34/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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