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Pradip Kumar Maurya

Inversion of hydraulic conductivity from Induced Polarisation, Part A: methodology and verification

Publikation: KonferencebidragKonferenceabstrakt til konferenceForskningpeer review

DOI

The estimation of hydraulic conductivity (K) from geophysical measurements is a key research topic in hydrogeophysics. In the laboratory, the Induced Polarisation (IP) method has a long story of successful K estimation, with two main approaches: i) the approach based on the link between K and imaginary conductivity σ" and ii) the approach based on the link between K and relaxation time τ. In this work, we study more in detail the estimation of hydraulic conductivity from TDIP data from the inversion point of view, re-parameterising the model space directly in terms of hydraulic properties, using both σ" and τ approaches for defining model parameters. We tested parameter correlations with the Markov chain Monte Carlo method, and performed linearized 2D inversions of synthetic data on an aquifer analog. Furthermore, we evaluated the quality of K estimation on borehole field data, against K estimates from grain …
OriginalsprogDansk
Udgivelsesår2021
DOI
StatusUdgivet - 2021
BegivenhedEAGE Near Surface Geoscience 2021 - Bordeaux, Frankrig
Varighed: 30 aug. 20211 sep. 2021
https://eage.eventsair.com/nsg2021/

Konference

KonferenceEAGE Near Surface Geoscience 2021
LandFrankrig
ByBordeaux
Periode30/08/202101/09/2021
Internetadresse

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