Wellbore instruments using magnetic motion converters
US8720608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion to a part of the magnets and various linkages and other devices can cause steering or operation of a modulator valve. A torsional drilling hammer uses a plurality of magnets arranged to convert reciprocating linear motion into reciprocating rotational motion. A motor and linkage drives the linearly moving part of the magnets, and the rotating part provides torsional impact be striking the linearly moving part of the magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.