Downhole pulse-generating apparatus
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United States of America Patent
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Aug 18, 2015
Grant Date -
Feb 21, 2013
app pub date -
Aug 15, 2012
filing date -
Aug 15, 2011
priority date (Note) -
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Abstract
A downhole apparatus includes a pressure pulse generator and a pulse reflector. The pulse reflector reflects at least a portion of an incident pressure pulse from the generator as a reflected pressure pulse. The apparatus is configured to provide the reflected pressure pulse with a phase shift with respect to the incident pressure pulse. A method of transmitting pressure pulses downhole includes generating a pressure pulse and reflecting at least a portion of an incident pressure pulse at a pulse reflector as a reflected pressure pulse. A phase shift of the reflected pressure pulse with respect to the incident pressure pulse is controlled.
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