System and method for drilling lateral boreholes using articulated drill string components
US11371321B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B3/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for drilling a secondary borehole includes a whipstock assembly configured to be deployed in a primary borehole, the whipstock assembly including a whipstock ramp, and a drilling assembly connected to a borehole string. The drilling assembly includes a drill bit connected to an articulated string portion having a plurality of connected sections configured to move laterally with respect to one another, and the articulated string portion is configured to be diverted by the whipstock ramp in a lateral direction to initiate drilling of a secondary borehole from the primary borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.