Method and apparatus for removing cuttings
US6840337B2 · kind B2 · utility
12Cited by
14References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for removing cuttings in a deviated borehole using drilling fluids. The apparatus includes a pipe string and a bottom hole assembly having a down hole motor and bit for drilling the borehole. The pipe string has one end attached to the bottom hole assembly and does not rotate during drilling. The apparatus and methods raise at least a portion of the pipe string in the deviated borehole to remove cuttings from underneath the pipe string portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.