Communications: electrical – Continuously variable indicating – With meter reading
Patent
1979-04-13
1982-09-21
Birmiel, Howard A.
Communications: electrical
Continuously variable indicating
With meter reading
340857, 364422, 370 78, 328118, G01V 140
Patent
active
043509797
ABSTRACT:
An improved system and method is provided for obtaining information related to subsurface earth formations. Well-logging data from an input terminal is processed and stored in a memory by a first processor. A second processor retrieves this data from the same memory, and further processes the data, which is then transferred to an output terminal device. The first processor obtains access to memory or the input terminal for delivering or retrieving data during pulses of a first pulse train generated by a clock. The second processor obtains access to the same memory or the output terminal for delivery or retrieval of data during pulses of a second pulse train generated by the clock. Performance of each processor's respective functions is synchronized by storage and retrieval of messages by both processors in the common memory.
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"Direct Digital Logging," Gearhart-Owen Advertising Brochure, 1977.
"Wellsite Formation Analysis" using the DDL Computer, Head, Society of Petroleum Engineers, Paper SPE6J41 Apr. 1977, conference paper.
Birmiel Howard A.
Byron Richard M
Dresser Industries Inc.
McCollum Patrick H.
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