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Method and apparatus for transmitting and receiving data to and from a downhole tool

United States Patent

March 13, 2007
View the Complete Patent at the US Patent & Trademark Office
A transmission line network system for transmitting and/or receiving data from a downhole tool. The invention is achieved by providing one or more transceiving elements, preferably rings, at either end of a downhole tool. A conduit containing a coaxial cable capable of communicating an electrical signal is attached to the transceiving element and extends through a central bore of the downhole tool and through the central bore of any tool intermediate the first transceiving element and a second transceiving element. Upon receiving an electrical signal from the cable, the second transceiving element may convert such signal to a magnetic field. The magnetic field may be detected by a third transceiving element in close proximity to the second transceiving element. In this manner, many different tools may be included in a downhole transmission network without requiring substantial modification, if any, of any particular tool.
Hall; David R. (Provo, UT), Fox; Joe (Spanish Fork, UT)
IntelliServ, Inc. (Provo, UT)
10/ 250,245
June 17, 2003
FEDERAL RESEARCH STATEMENT This invention was made with government support under Contract No. DE-FC26 01NT41229 awarded by the U.S. Department of Energy. The government has certain rights in the invention.