Drilling stabilizer
US5363931A · kind A · utility
23Cited by
31References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Jul 7, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L7/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A stabilizer to be mounted on a collar of a well drilling string including a circumferentially continuous tubular body having several outwardly extending blades thereon, the tubular body having an inner dimension such that it can be slid onto a drill collar, and radially energized components which positively fix the stabilizer on the collar including dies mounted in the blades, and having serrations on their inner faces, and drive elements to cause the serrations to bite into the collar and thereby fix the stabilizer thereon in a selected longitudinal and rotational position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.