Communications: electrical – Wellbore telemetering or control – Including detail of subsurface signal storage
Patent
1990-10-01
1992-10-20
Steinberger, Brian S.
Communications: electrical
Wellbore telemetering or control
Including detail of subsurface signal storage
3408555, 3408556, 181103, 367912, 364422, 346 33WL, G01V 100
Patent
active
051573920
ABSTRACT:
A seismic logging system for VSP or cross well data capture set forth. It is comprised of M duplicate recording stations connected serially below a main structure suspended on a logging cable. Each of the recording stations preferably includes orthogonally arranged displacement transducers, and they are in turn connected with suitable amplifiers, filters and converters to form digital words, and the digital words are recorded in organized fashion in a memory. A telemetry unit is connected to that memory for transfer of data. This data transfer takes place over a short distance into the main unit, and the main unit includes a much larger memory for storing and holding data from M recording stations deployed along and there below in the well borehole, and further including telemetry means for transfer of data along the logging cable. The main memory and the main telemetry means operate at different rates and different capacities; each recording station has its own memory and telemetry means to individually form data words which are first stored locally and then transferred to the main memory where upon telemetry along the logging cable subsequently occurs.
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Beard William J.
Halliburton Logging Services Inc.
Steinberger Brian S.
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