Reamer wing with balanced cutting loads
US5495899A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1995 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Apr 28, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multi-bladed reaming apparatus for enlarging a subterranean borehole, the apparatus having a tubular body with a plurality of longitudinally-extending, circumferentially-spaced, generally radially-extending blades carrying cutting elements, the blades being unequally spaced about the body. The cutting depth of the cutting elements on at least one of the blades is adjusted to modify the distribution of the depth of cut (DOC) among the cutting elements to substantially equalize the volume of formation material removed by the blades. Wear is reduced and the potential for premature failure of cutting elements on any single blade is alleviated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.