Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Reexamination Certificate
2005-01-18
2005-01-18
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Borehole direction or inclination
C073S152540
Reexamination Certificate
active
06842990
ABSTRACT:
The invention relates to a device for measuring lateral displacement of a casing in a vertical bore and includes an inclinometer probe, a cable, and a cable reel with electronics mounted in the reel hub. The probe contains two servo-accelerometers, a microprocessor and an electrical circuit. The servo-accelerometers provide analog signals that indicate the inclination angle of the vertical bore hole. The electrical circuit converts the analog signal from each servo-accelerometers to a digital signal which is read by the microprocessor. The microprocessor analyses the data and transmits the digital encoded data over a twisted-pair cable to a digital display unit connected to the cable reel hub. DC power for the probe is provided by the electronics in the reel hub over the same twisted-pair cable.
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Bennett G. Bradley
Shapiro Cohen
Taylor Robert M.
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