doveton4 - DIGITAL LOG DATA Log analysis calculations used...

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DIGITAL LOG DATA Log analysis calculations used to be done mostly with slide-rules and charts (pre-1972), then with calculators, and now increasingly with computers. The digital data for computations are recorded by the logging truck and are made available either directly or from the logging company computer processing center. The data are stored either in binary format (LIS) on tapes, or in ASCII format (LAS) usually on floppy discs. LAS (Log Ascii Standard) is the more recent standard and was introduced by the Canadian Well Logging Society in the late 1980 ’s. LIS (Log Information Standard) tapes are often difficult to read, not only because of their binary code, but the variability in formatting styles . LAS files on floppy discs can be read by standard word-processing programs and LAS is ideal for PCs . Both forms conventionally list data at a rate of two readings per
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doveton4 - DIGITAL LOG DATA Log analysis calculations used...

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