Borehole stabilization while drilling
US7013992B2 · kind B2 · utility
47Cited by
14References
78Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jun 13, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for drilling in unconsolidated formation is taught. In particular, a method for borehole stabilization in an unconsolidated formation includes providing a drill string; rotating the drill string to drive a drill bit to drill a borehole having a borehole wall; driving the drill string against the borehole wall while rotating the drill string to plaster the surface of the borehole wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.