CORING TOOLS AND RELATED METHODS |
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| 申请号 | EP15789627 | 申请日 | 2015-05-08 | 公开(公告)号 | EP3140490A4 | 公开(公告)日 | 2018-01-24 |
| 申请人 | BAKER HUGHES INC; | 发明人 | UHLENBERG THOMAS; RICHERT VOLKER; | ||||
| 摘要 | A coring bit for extracting a sample of subterranean formation material from a well bore may include a bit body having a bit face and an inner surface defining a substantially cylindrical cavity of the bit body. A first portion of the inner surface may be configured to surround a core catcher. The coring bit may include a face discharge channel inlet formed in the inner surface of the bit body longitudinally at or above the first portion of the inner surface. The coring bit may also include a face discharge channel extending through the bit body from the face discharge channel inlet to the bit face. A tubular body having a core catcher may be disposed in the coring bit to form a coring tool. Methods of forming such bit bodies may include forming an inlet for a face discharge channel in the inner surface of the bit body at a location longitudinally at or above the first portion of the inner surface and forming a face discharge channel extending from the inlet to the bit face. | ||||||
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