Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Reexamination Certificate
2007-10-02
2007-10-02
Wong, Albert K. (Department: 2612)
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through drill string or casing
C181S106000, C181S102000, C073S152580
Reexamination Certificate
active
10893236
ABSTRACT:
The present invention is directed to overcoming analog transmission difficulties by digitizing transducer signals at or near the transducer of an acoustic pulse gun and then transmitting the transducer signals in a digital form so that the signals can be recovered with greater fidelity by a remote computer or recorder. System, apparatus and method aspects of the invention are provided. Advantages of the present invention include better transmission of the acoustic signal from the pulse gun assembly to the computer or recorder, reduced noise and electronic interference, and better data capture.
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Author Unknown, Various website printouts from the WellSonic LC website (http;//www.wellsonic.com/), Jan. 13, 2004, 14pp.
Author Unknown, Various website printouts from the Echometer Company website (http://www.echometer.com/), Jan. 13, 2004, 5pp.
Echometer Company, Gun—Microphone Assemblies for use with Acoustic Liquid Level Instruments, 4 page brochure, publication date unknown.
Echometer Company, Echometer Digital Well Analyzer, 4 page brochure, publication date unknown.
Author Unknown, Various website printouts from the Digital Microphone Online website (http://www.digitalmicrophone.com/), Jan. 9, 2004, 10pp.
Finnestad Dean
Finnestad Scott
Gelsing Sander R.
Wong Albert K.
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