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These tools can provide estimates of bulk porosity and fluid content, quantification of bound versus mobile fluids, and estimates of hydraulic conductivity (K).
- Matthew S. Spurlin, Brent W. Barker, Bradley D. Cross, Craig E. Divine
- 2019
Aug 14, 2023 · NMR logging tools can provide three types of information, each of which makes these tools unique among logging devices: information about the quantities of the fluids in the formation rock; information about the properties of these fluids, such as viscosity; information about the sizes and connectivity of the pores that contain these fluids.
Aug 1, 2021 · This work proposes a new approach to detect and improve the interpretation of zones with unreal NMR logging tool readings in areas heavily affected by drilling mud invasion in caverns/vugs, which causes a T2 distribution shift towards lower relaxation times.
- Bruno Valle, Patrick Führ Dal’ Bó, Jeferson Santos, Lucas Aguiar, Pedro Coelho, Julia Favoreto, Mich...
- 2021
Jun 24, 2015 · NMR logging provides measurements of a variety of critical rock and fluid properties in varying reservoir conditions (e.g., salinity, lithology, and texture), some of which are unavailable using conventional logging methods (Fig.1) and without requiring radioactive sources (Table 1).
Sep 15, 2021 · Nuclear magnetic resonance (NMR) technology is the only method among all geophysical methods that can directly qualitatively and quantitatively measure groundwater content and evaluate aquifer reservoirs. The emergence of small-diameter NMR logging tools provides a powerful tool for the evaluation of shallow surface hydrogeological parameters.
Mar 1, 2019 · The new NMR logging tool provides reliable, direct, and high-resolution information that is of importance for groundwater studies.
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How can NMR logging tools improve water quality and productivity?
How does NMR logging-tool response compare to conventional logging tools?
Why is NMR used in borehole applications?
What are the objectives of NMR logging?
How can NMR logging be used to identify hydrocarbons in pore fluids?
Why is NMR a useful diagnostic tool?
Feb 19, 2013 · Collecting NMR logging measurements involves lowering a tool into a borehole to record the response of the nuclear magnetization associated with the hydrogen nuclei in the pore fluids (oil, water, and gas) of the geologic materials directly surrounding the borehole.
