Borehole contacting apparatus for bottom hole assembly
US4106823A · kind A · utility
20Cited by
2References
14Claims
0Family size
Inventor
Key dates
| Filing date | Oct 26, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Oct 26, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A borehole wall contacting apparatus on a bottom hole assembly of a drill string for contacting the borehole wall including a plurality of dovetail grooves having outwardly converging opposed sidewalls formed in the apparatus body for receiving at least one pair of coacting stabilizer wear blades, each blade having opposed contact and camming sidewalls with relative longitudinal engagement of the camming walls of the coacting wear blades wedging the opposed sidewalls into engagement with the opposed converging dovetail walls to removably secure the wear blades into position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.