Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Reexamination Certificate
2005-03-15
2005-03-15
Wong, Albert K. (Department: 2635)
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through drill string or casing
C340S854400, C340S854300, C340S854800, C166S073000
Reexamination Certificate
active
06868040
ABSTRACT:
A petroleum well for producing petroleum products that incorporates a system adapted to controllably route communications and/or electrical power having a time-varying current through a piping structure in the well, and methods of producing petroleum products use such a well, are provided by the present invention. The system comprises a first induction choke, a second induction choke, and a controllable switch. The first induction choke is located about a portion of a first branch of the piping structure. The second induction choke is located about a portion of a second branch of the piping structure. The controllable switch having two switch terminals. A first of the switch terminals I is electrically connected to the piping structure on a junction side of the induction chokes. The first and second branches of the piping structure intersect on the junction side of the induction chokes. A second of the switch terminals is electrically connected to the piping structure on another side of at least one of the induction chokes.
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Haase Mark Christopher
Vinegar Harold J.
Shell Oil Company
Wong Albert K.
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