DOWNHOLE TURBINE ASSEMBLY |
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| 申请号 | EP14907899 | 申请日 | 2014-12-09 | 公开(公告)号 | EP3201422A4 | 公开(公告)日 | 2018-06-20 |
| 申请人 | HALLIBURTON ENERGY SERVICES INC; | 发明人 | RILEY BENJAMIN SCOTT; CHAMBERS LARRY DELYNN; | ||||
| 摘要 | A downhole turbine assembly includes a stator housing having one or more stator blades positioned within the stator housing and extending radially inward therefrom. A rotor shaft having a first end and a second end is rotatably positioned within the stator housing and has a first portion exhibiting a first diameter and a second portion exhibiting a second diameter greater than the first diameter. One or more rotor blades are secured to the second portion for rotation with the rotor shaft, and a first bearing assembly is positioned at the first end and a second bearing assembly is positioned at the second end. At least one of the bearing housings provides a primary flow path and a secondary flow path, and one or more radial bearings and one or more thrust bearings are arranged in the secondary flow path. | ||||||
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| 说明书全文 | |||||||
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