Pressure impulse telemetry apparatus and method
US6384738B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method of communicating in a tubular system (20) through a media (65) disposed therein and actuating a controllable device (58) are disclosed. The apparatus and method utilize a transmission apparatus (16) at a transmission node that is in communication with the media (65). The transmission apparatus (16) generates pressure impulses that are propagated through the media (65). The pressure impulses may be either positive or negative pressure impulses depending upon the selected transmission apparatus. The pressure impulses are detected by a reception apparatus (77) at a reception node. The detection apparatus may detect the pressure impulses as variation in the media (65) or as variation in the tubular system (20) caused by the pressure impulses. Once the detection apparatus (77) has detected the appropriate pressure impulse or pattern of pressure impulses, a signal may be generated to actuate the controllable device (58).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.