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Subterranean drilling and in situ treatment of wastes using a contamination control system and methods relating thereto

United States Patent

September 28, 2004
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Systems and methods relating to subterranean drilling while maintaining containment of any contaminants released during the drilling. A thrust block installed over a zone of interest provides an overflow space for retaining any contaminants and excess sealant returns. Negative air pressure may be maintained in the overflow space by a ventilation system. Access ports in the thrust block seal the overflow space from the surrounding environment with a membrane seal. A flexible sack seal in the access port may be connected to a drill shroud prior to drilling, providing containment during drilling after the drill bit penetrates the membrane seal. The drill shroud may be adapted to any industry standard drilling rig and includes a connection conduit for connecting to the flexible sack seal and a flexible enclosure surrounding the drill shaft and of a length to accommodate full extension thereof. Upon withdrawal, the sack seal may be closed off and separated, maintaining containment of the overflow space and the drill shroud.
Jessmore; James J. (Idaho Falls, ID), Loomis; Guy G. (Idaho Falls, ID), Pettet; Mark C. (Idaho Falls, ID), Flyckt; Melissa C. (Pocatello, ID)
Bachtel BWXT Idaho, LLC (Idaho Falls, ID)
10/ 278,341
October 22, 2002
GOVERNMENT RIGHTS The United States Government has rights in the following invention pursuant to Contract No. DE-AC07-99ID13727 between the U.S. Department of Energy and Bechtel BWXT Idaho, LLC.