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日本地下水学会会誌
Vol. 17 (1975) No. 1 p. 23-29

記事言語:

http://doi.org/10.5917/jagh1959.17.23


Cross-plotting has been always used in doing the analysis of Oil-well logs.
This paper reports about two examples of cross-plots used in the water-well logs, as well as in the oil-well logs.
Their results clear that, high-permeable layer is extracted by Natural gamma-Resistivity crossplotting, and low-permeable layer (silt and/or clay) is extracted by Natural gamma-Density cross-plotting.

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