Double-taper slip-on drill string stabilizer
US4600063A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1984 |
| Grant date | Jul 15, 1986 |
| Priority date | — |
| Expiry date | May 29, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D1/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A slip-on stabilizer is provided for adjustable positioning along a drill collar. The stabilizer includes a body positioned around the drill collar with a threaded section on each end and at least one tapered inner surface with the tapering surface beginning at the end of the interior threads and tapered to a generally narrower interior diameter; a plurality of slip segments with at least one tapered surface complementary matching the tapered surface of the stabilizer body; a locking pin and threaded end caps forcing the slip segment toward the center of the stabilizer body thereby wedging the slip segments against the drill collar by screwing the end cap into the body and thereby clamping the stabilizer body assembly onto the drill collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.