Method and apparatus for vibrating horizontal drill string to improve weight transfer
US9598906B2 · kind B2 · utility
0Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B28/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for use in a horizontal section of a drill string is disclosed. The apparatus includes a motor that is connected to the horizontal section of the drill string. The motor is adapted to impart vibrations in the horizontal section of the drill string, where the vibrations are at about the lateral resonant frequency of the horizontal section of the drill string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.