Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids
Patent
1993-06-03
1996-11-26
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through well fluids
175 40, 175 48, 181103, G01V 140, E21B 4706, E21C 706
Patent
active
055792839
ABSTRACT:
A method and apparatus for communicating coded messages in a wellbore between a transmission node and a reception node is provided. The coded messages are messages are impressed upon a fluid column which extends between the transmission node and the reception node. A transmission apparatus is provided at the transmission node which is in communication with the fluid column, for altering pressure of the fluid column to generate at least a portion of the coded message. A reception apparatus is provided at the reception node. The reception apparatus includes a rigid structural component with an exterior surface which is in direct contact with fluid column and an interior surface which is not in contact with the fluid column, and a sensor assembly which detects elastic deformation of the rigid structural component. The transmission apparatus is utilized to alter pressure of the fluid column in a predetermined pattern to generate at least one coded message. The reception apparatus is utilized to detect the coded message in the fluid column through changes in elastic deformation of the rigid structural component.
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Bouldin Brett W.
Holcombe Michael W.
Lehr Douglas J.
Owens Steve C.
Rothers David E.
Baker Hughes Incorporated
Hunn Melvin A.
Moskowitz Nelson
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