Reaming device connecting to downhole motor with paralleled driving structure
US10626678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Aug 6, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reaming device connects to downhole motor with paralleled driving structure. The downhole motor contains power section assembly, sleeve and connection pad. The power section assembly has a rotor and a stator in which the stator covers the rotor. The sleeve is located inside the rotor that drives the sleeve to make rotation. The connection pad is affixed to and rotates with the sleeve is disposed on the one end of the extended part of rotor from the bottom of sleeve. The reamer is set on the stator of power section assembly or on the cover connecting to the stator from power section assembly. The rotor drives the reamer to rotate with the stator or on the cover connecting to the stator through the sleeve and the connection pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.