Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate
2008-03-18
2008-03-18
Edwards, Jr., Timothy (Department: 2612)
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
C340S855400, C367S083000
Reexamination Certificate
active
10524581
ABSTRACT:
A surface mud pipeline system is described with a mechanical acoustic filter (1245) tuned to a predetermined frequency band so as to attenuate pump noise (132) within this band. The filter can be combined with a Venturi constriction to provide enhanced attenuation and is used to improve signal transmission of a mud pulse telemetry system (113-2).
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“Reactive dampener versus a bladder reactive combination”, product information on Model DR-240-7500CS reactive discharge dampener, Performance Pulsation Control Inc., P.O. Box 860396, Plano, TX 75086-0396, United States of America, issued by Stacy Oilfield Services Limited, Aberdeen, Scotland. Printed before Jun. 19, 2001 http://www.btinternet.com/˜staceyoil/ pp. 1-14.
Froelich Benoit
Huang Songming
Monmont Franck
Edwards, Jr. Timothy
Gahlings Steven
Loccisano Vincent
McAleenan James
Schlumberger Technology Corporation
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