Method for acoustic transmission of drilling data from a well
US5289354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1993 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Jun 17, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for transmitting data from the bottom of a well to the surface is disclosed. The method includes measuring data indicative of at least one drilling condition at the bottom of a well, transmitting into a stream of drilling mud injected into a well pipe string a series of encoded pressure pulses representative of the data measurement, and detecting the encoded pulses at the surface using a pressure sensor which is in communication with the stream of drilling mud as it is being injected into an inlet of the pipe string. The method also includes, as a way of improving data detection, using a surface sensor to measure vibrations in the pipe string which are generated as a result of the propogation of the encoded pulses through the drilling mud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.