Method and apparatus enhanced acoustic mud pulse telemetry
US7123161B2 · kind B2 · utility
6Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system for telemetry through a drilling fluid during drilling is disclosed. A reflector (110) is positioned downstream from the drilling mud pumps (80) and causes reflected pressure waves having the same pressure polarity as incident pressure waves traveling upwards. At least one pressure sensor (92) is positioned below the reflector (110) to sense pressure in the drilling fluid. The reflector can be a fixed orifice plate or an adjustable aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.