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Internal coaxial cable seal system

United States Patent

November 23, 2004
View the Complete Patent at the US Patent & Trademark Office
The invention is a seal system for a coaxial cable more specifically an internal seal system placed within the coaxial cable and its constituent components. A series of seal stacks including flexible rigid rings and elastomeric rings are placed on load bearing members within the coaxial cable. The current invention is adapted to seal the annular space between the coaxial cable and an electrical contact passing there through. The coaxial cable is disposed within drilling components to transmit electrical signals between drilling components within a drill string. During oil and gas exploration, a drill string can see a range of pressures and temperatures thus resulting in multiple combinations of temperature and pressure and increasing the difficulty of creating a robust seal for all combinations. The seal system can be used in a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars.
Hall; David R. (Provo, UT), Hall, Jr.; H. Tracy (Provo, UT), Pixton; David (Lehi, UT), Dahlgren; Scott (Provo, UT), Sneddon; Cameron (Provo, UT), Briscoe; Michael (Lehi, UT), Fox; Joe (Spanish Fork, UT)
Intelliserv, Inc. (Provo, UT)
10/ 640,956
August 14, 2003
This invention was made with government support under Contract No, DE-FC26-97FT343656 awarded by the U.S. Department of Energy. The government has certain rights in the invention.