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IMPROVED ELECTRICAL CONTACT FOR DOWNHOLE DRILLING NETWORKS

United States Patent Application

20050074988
A1
View the Complete Application at the US Patent & Trademark Office
An electrical contact system for transmitting information across tool joints while minimizing signal reflections that occur at the tool joints includes a first electrical contact comprising an annular resilient material. An annular conductor is embedded within the annular resilient material and has a surface exposed from the annular resilient material. A second electrical contact is provided that is substantially equal to the first electrical contact. Likewise, the second electrical contact has an annular resilient material and an annular conductor. The two electrical contacts configured to contact one another such that the annular conductors of each come into physical contact. The annular resilient materials of each electrical contact each have dielectric characteristics and dimensions that are adjusted to provide desired impedance to the electrical contacts.
Hall, David R. (Provo, UT), Hall, H. Tracy Jr. (Provo, UT), Pixton, David S. (Lehi, UT), Dahlgren, Scott (Provo, UT), Fox, Joe (Spanish Fork, UT), Sneddon, Cameron (Provo, UT)
10/ 605,493
October 2, 2003
[0001] This invention was made with government support under Contract No. DE-FC26-97F343656 awarded by the U.S. Department of Energy. The government has certain rights in the invention.