Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent
1983-01-11
1986-08-05
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
364422, 364581, G01V 328, G01V 318
Patent
active
046045813
ABSTRACT:
Induction well logging methods and apparatus are disclosed for deconvolving apparent conductivity measurements obtained for a induction logging coil system. The well logging system is operated so that it has a substantially fixed vertical response. The fixed vertical response function is used to design an inverse (deconvolution) filter by using a minimum Tchebycheff norms technique. The inverse filter function is stored and employed to convert (deconvolve) signals obtained from the induction coil system to signals functionally related to the actual conductivity of an incremental layer of a formation being logged.
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Merchant Gulamabbas A.
Thadani Suresh G.
Beard William J.
Edmonds Warren S.
Halliburton Company
Strecker Gerard R.
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