Method and apparatus for absorbing shock
US4693317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jun 3, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/1195
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention includes devices for absorbing shock in a tool string within a borehole. These components may serve together in a variety of configurations to form a shock absorbing system. A longitudinal shock absorber is connected in the tool string. The longitudinal shock absorber includes compressible members utilized to damp longitudinal movement. A radial shock absorber is connected in the tool string. The radial shock absorber includes resiliently mounted contact pads for contacting the sides of the borehole to damp radial movement. A carrier assembly is utilized to provide a shock absorbing mounting for particularly delicate components such as gauges, and to damp any shock which might be transmitted thereto from either a radial or longitudinal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.