Patent · US Active

Bidirectional telemetry apparatus and methods for wellbore operations

US7477161B2 · kind B2 · utility

18Cited by

10References

22Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

John D. Macpherson · Spring, US
Frank W. Shepard · Houston, US
Ralf Zaeper · Hannover, DE
Volker Krueger · Celle, DE

Key dates

Filing date	May 10, 2006
Grant date	Jan 13, 2009
Priority date	—
Expiry date	Jul 10, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01V11/002
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system and method for communicating data between a downhole tool and a surface controller is provided that comprises a rotating drill string extending in a borehole and having a downhole telemetry module disposed proximate a bottom end thereof and transmitting a first signal across a telemetry channel. A surface telemetry module is disposed proximate a top end of the rotating drill string and is adapted to receive the first signal transmitted by the downhole telemetry module across the transmission channel. The surface telemetry module has a radio frequency transmitter disposed therein for transmitting a second signal related to the first signal. A stationary communication module has a radio frequency receiver adapted to receive the second signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.