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单词 density log
释义
density log

Geology and Earth Sciences
  • A well log (record) of the density of the rocks penetrated by a drill hole. Normally it is based on the output from a gamma–gamma sonde, with compensation for the effects of the mud cake. It is particularly useful for the identification of evaporites, and when examined in conjunction with the neutron-log it can provide an indication of the presence of gas zones.


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