Baker Hughes Corporation

Doublebarrel Downhole Technologies LLC

Sassan Dehlavi

Robert Alan Estes

Curtis Clifford Lanning

Paul Gerard Cairns

David M Schneider

Samuel Bell

Sergey Efremov

Jeff Kurthy

Sergey V Efremov

Disclosed are methods for transmitting data to a downhole tool. The methods include the option of confirming receipt and implementation of the transmitted data by the downhole tool. The disclosed methods utilize changes in RPM of the tool to convey the data through three separate changes in RPM. The changes in RPM are used to generate pulses suitable for identifying preprogrammed actions found within the memory of the downhole tool.

Verifiable downlinking method

This invention provides a measurement-while-drilling (MWD) downhole assembly for use in drilling boreholes which utilizes directional formation evaluation devices on a rotating assembly in conjunction with toolface orientation sensors. The data from the toolface orientation sensors are analyzed by a processor and toolface angle measurements are determined at defined intervals. Formation evaluation sensors operate substantially independently of the toolface orientation sensors and measurements of the formation evaluation sensors are analyzed in combination with the determined toolface angle to obtain formation parameters.

Measurement-while-drilling assembly using real-time toolface oriented measurements

Growing community of inventors

Houston, TX, United States of America

Sassan Dehlavi