Wellbore top drive systems
US7419012B2 · kind B2 · utility
23Cited by
29References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2006 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Oct 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7854
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drive system for wellbore operations, the drive system, in certain, but not necessarily all aspects, including a main body, a motor apparatus, a main shaft extending from the main body and rotatable by the motor, the main shaft having a top end and a bottom end, and an item, the item non-threadedly connected to the main shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.