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《Oil Geophysical Prospecting》 1989-05
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Combinative inversions of transient electromagnetic sounding data and direct-current sounding data

Hu Jiande  
Direct-current resistivity method is sensitive to both good conductive formation and high resistance formation;but the multiple-solution prob- lem in the case of thin formation causes troubles.The transient electro- magnetic sounding method is sensitive to good conductive formation but insensitive to high resistance formation.Their combinative inversions can bring their merits into full play but avoid their some demerits,in- creasing the number of important parameters. On the basis of other people's work,the author made combina- tive inversions of modeling data of transient electromagnetic sounding and direct-current sounding,and settled the anisotropic resolution prob- lem for layered medium.
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