Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2006-07-21
2010-06-01
Bhat, Aditya (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
Reexamination Certificate
active
07729860
ABSTRACT:
A method and system is provided for determining the value of an attribute of ambient energy at a drilling assembly at the bottom of a borehole. Ambient energy includes kinetic energy, hydraulic energy and thermal energy. Attributes include vibration frequency spectrum, pressure difference, and temperature difference. The method uses energy harvested by at least one energy-harvesting sensor to power the system. The system generates data signals from at least one energy-harvesting sensor at one or more locations along a downhole drilling assembly, and transmits data up the borehole.
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Guerrero Julio
Pabon Jahir
Pafitis Demosthenis
Sihler Joachim
Bhat Aditya
Laffey Brigid
Loccisano Vincent
McAleenan James
Schlumberger Technology Corporation
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