Impedance-matched drilling telemetry system

Patent Number: 7,362,235
Issued: 4/22/2008
Official Filing: View the Complete Patent
Abstract: A downhole telemetry system that uses inductance or capacitance as a mode through which signal is communicated across joints between assembled lengths of pipe wherein efficiency of signal propagation through a drill string, for example, over multiple successive pipe segments is enhanced through matching impedances associated with the various telemetry system components.
Filed: 5/15/2003
Application Number: 10/438,999
Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.