| 摘要 |
A method of calculating a theoretical sonic log from an ideal sonic log and resistivity data. The method involves calculating the ideal sonic log assuming a shale sediment and using available data from a well or the surrounding region. Resistivity data is used to correct the ideal sonic log for departures from the shale sediment assumption.The calculated theoretical sonic log may then be used to calibrate an experimental log and to replace low confidence segments of the experimental log.The method allows useful information to be derived for wells previously considered uneconomical.
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