FIELD: physics, geophysics.
SUBSTANCE: invention relates to petroleum geophysics and can be used incorporated with dipole oil-and-gas well data transfer systems. Proposed telemetry system comprises downhole module consisting of bottom part with primary transducers and top part comprising power supply, cable receiver, drive with electric dipole, ground receiving-processing hardware and wire transmission channel. Is comprises also additional module incorporating wireless receiver. Wellbore module bottom part incorporates wireless transmitter, non-magnetic sub with seat and power supply. Note here that said sub is attached to wellbore module bottom part upper end face. Aforesaid additional module is arranged between wellbore top and bottom and connected via wire transmission channel with wellbore module top, while its opposite end face can interact with non-magnetic sub seat.
EFFECT: higher data accuracy, data transfer rate in real time irrespective of well depth and diametre and rock electrical resistance.
2 dwg
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Authors
Dates
2010-01-10—Published
2008-11-27—Filed