Screen and bypass arrangement for LWD tool turbine
US5626200A · kind A · utility
28Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A logging-while-drilling tool for use in a wellbore in which a well fluid is circulated into the wellbore through the hollow drill string. In addition to measurement electronics, the tool includes an alternator for providing power to the electronics, and a turbine for driving the alternator. The turbine blades are driven by the well fluid introduced into the hollow drill string. The tool also includes a deflector to deflect a portion of the well fluid away from the turbine blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.