| 发明名称 |
OVERSHOT ASSEMBLY AND SYSTEMS AND METHODS OF USING SAME |
| 摘要 |
An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has at least one latch member that securely engages the inner surface of the head assembly without the use of a spearhead. |
| 申请公布号 |
EP2935782(A1) |
申请公布日期 |
2015.10.28 |
| 申请号 |
EP20130863927 |
申请日期 |
2013.12.20 |
| 申请人 |
LONGYEAR TM, INC. |
发明人 |
DRENTH, CHRISTOPHER, L.;LACHANCE, ANTHONY;IONDOV, GEORGE |
| 分类号 |
E21B49/02;E21B17/02;E21B33/038 |
主分类号 |
E21B49/02 |
| 代理机构 |
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代理人 |
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| 地址 |
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