CORING TOOLS EXHIBITING REDUCED ROTATIONAL ECCENTRICITY AND RELATED METHODS |
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| 申请号 | EP15819474 | 申请日 | 2015-07-10 | 公开(公告)号 | EP3167144A4 | 公开(公告)日 | 2018-03-21 |
| 申请人 | BAKER HUGHES INC; | 发明人 | FULDA CHRISTIAN; UHLENBERG THOMAS; WESEMEIER CHRISTOPH; | ||||
| 摘要 | Coring tools configured to procure core samples of earth formations may include a coring bit comprising a cutting structure configured to cut a core sample and an outer barrel connected to the coring bit. The outer barrel may be configured to apply axial and rotational force to the coring bit. An inner barrel may be located within the outer barrel and may be configured to receive a core sample within the inner barrel. A sponge material may line an inner surface of the inner barrel and may be configured to absorb a fluid from the core sample. A stabilizer may be connected to the outer barrel. A distance between the stabilizer and an upper extent of the coring bit may be less than 30 feet. | ||||||
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| 说明书全文 | |||||||
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