Downhole Vibratory Tool for Placement in Drillstrings |
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| 申请号 | US16028912 | 申请日 | 2018-07-06 | 公开(公告)号 | US20180313164A1 | 公开(公告)日 | 2018-11-01 |
| 申请人 | Russell W. Earles, SR.; | 发明人 | Doug Tinsley; Richard Allan Moore; | ||||
| 摘要 | A downhole vibratory tool for placement in drillstrings is disclosed. The downhole vibratory tool creates vibration in the drillstring while drilling. A rotary drive rotates in response to fluid flow through it, rotating a rotor having a lower end engaging an upper end of a mandrel. The mandrel is held in a main body such that it is rotationally locked with respect to the main body, but can move longitudinally within a restricted range. The lower end of the rotor and the upper end of the mandrel have interfacing surfaces. Rotation of the rotor and interaction of the interfacing surfaces creates a back-and-forth movement of the mandrel with respect to the rest of the tool, creating the desired vibratory motion. | ||||||
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