Borehole communication using vibration frequency

US10830038B2 · kind B2 · utility

Assignee

• Baker Hughes, a GE company, LLC · US

Inventors

• Andreas Hohl · Hannover, DE
• Wojciech Emmerich · Celle, DE

Key dates

• Filing date: May 21, 2019
• Grant date: Nov 10, 2020
• Expiry date: May 21, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B13/02
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Communication methods and systems for communicating from a surface location to a downhole component in a borehole in an earth formation are described. The methods and systems include modulating, by a first device at the surface location, a fluid flow through a mud motor according to a predetermined pattern, the mud motor disposed in the borehole, the modulated fluid flow generating a mechanical movement variation pattern of at least a part of the mud motor, detecting, by a second device in the downhole component, the mechanical movement variation pattern, and demodulating the mechanical movement variation pattern to receive a signal that is related to the predetermined pattern.