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GEOLOGIC FRACTURING METHOD AND RESULTING FRACTURED GEOLOGIC STRUCTURE

United States Patent Application

*** PATENT GRANTED ***
20140338894
9,488,456
A1
View the Complete Application at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Detonation control modules and detonation control circuits are provided herein. A trigger input signal can cause a detonation control module to trigger a detonator. A detonation control module can include a timing circuit, a light-producing diode such as a laser diode, an optically triggered diode, and a high-voltage capacitor. The trigger input signal can activate the timing circuit. The timing circuit can control activation of the light-producing diode. Activation of the light-producing diode illuminates and activates the optically triggered diode. The optically triggered diode can be coupled between the high-voltage capacitor and the detonator. Activation of the optically triggered diode causes a power pulse to be released from the high-voltage capacitor that triggers the detonator.
Mace, Jonathan L. (Los Alamos, NM), Bradley, Christopher R. (Chimayo, NM), Greening, Doran R. (West Lebanon, NH), Steedman, David W. (Santa Fe, NM)
14/ 370,208
January 14, 2013
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.