1. Magnetic Permeability Sensor Array Prototype to Evaluate Reservoir Phase Permeability in situ Downhole.
- Author
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Adams, Robert W., Servin, Jesus M. Felix, Wang, Wei, and Deffenbaugh, Max
- Subjects
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MAGNETIC permeability , *SENSOR arrays , *MAGNETIC sensors , *PERMEABILITY , *MUTUAL inductance - Abstract
A measurement system capable of in situ measurements of formation permeability is described. The measurement method relies upon imaging the distribution of magnetic permeability fluid injected into a wellbore system through mutual inductance measurements between pairs of coils and relating the change in distribution of this fluid over time to a direct measurement of formation phase permeability. Analysis of the mutual inductance measurement method shows a unique response to distributions of magnetic permeability for various coil spacings and insensitivity to other confounding electrical parameters. The lower bound of measurement variance for this system is modeled for a continuum of coil spacings and radii of investigation for a perturbation in magnetic permeability. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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