The Center for Groundwater Evaluation and Management Rosemary Knight

Nuclear Magnetic Resonance (NMR) For Groundwater Applications

Talking Logging measurments
Estimating Hydraulic Conductivity with NMR Logging in Glacial Aquifers

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The WalkTEM system used for TEM data acquisition in the Indian Wells Valley
Aquifer Characterization in the Indian Wells Valley, California Using Geophysical Techniques

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Basic Project materials photo
Comparing Laboratory and Borehole NMR in Unconsolidated Aquifers

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Rosemary Knight (left, Stanford University) and Dave Walsh (right, Vista Clara) with the Javelin direct push NMR logging tool. Ed Reboulet (KGS) is in the background.
The Link Between NMR and K

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It is commonly assumed, in the interpretation of NMR relaxation data, that one pore space is sampled in the time-scale of the experiment.
NMR-Lab Studies of Unconsolidated Materials

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The High Plains Aquifer is one of the world's largest aquifers and spans eight states throughout the Great Plains in the United States. (Source: Kansas Geological Survey, Kansas Ground Water)
Logging and Surface NMR in the High Plains Aquifer, Nebraska

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Laboratory experiment demonstrating the feasibility of the proposed method to estimate the B0 inhomogeneity. Black curves (T2*): the measured relaxation times when B0 inhomogeneity effects are present in the free induction decay (FID) measurement. Blue curves: relaxation times measured in a homogeneous B0 field. Red curves: predicted relaxation times using proposed method.
Surface NMR- Addressing Field Inhomogeneity

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