Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine

Konstantina Katika; Mohammad Monzurul Alam; Ida Lykke Fabricius

doi:10.1061/9780784412992.080

Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine

Konstantina Katika, Mohammad Monzurul Alam, Ida Lykke Fabricius

Center for Energy Resources Engineering

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

The use of low field Nuclear Magnetic Resonance (NMR) to determine petrophysical properties of reservoirs has proved to be a good technique. Together with sonic and electrical resistivity measurements, NMR can contribute to illustrate the changes on chalk elasticity due to different pore water composition. In this study we relate NMR data to changes in P-wave velocity and electrical resistivity. Core plugs from outcrop Stevns chalk, of 44% porosity, were divided into groups of three and saturated with deionized water, calcite equilibrated water, as well as sodium chloride and magnesium chloride solutions of the same ionic strength. Saturation with a solution that contained divalent ions caused a major shift on the distribution of the relaxation time. The changes were probably due to precipitats forming extra internal surface in the sample. Sonic velocities were relatively low in the MgCl₂ solution saturated plugs.

Original language	English
Title of host publication	Poromechanics V : Proceedings of the Fifth Biot Conference on Poromechanics
Number of pages	7
Publisher	American Society of Civil Engineers
Publication date	2013
Pages	678-684
ISBN (Print)	978-0-7844-1299-2
DOIs	https://doi.org/10.1061/9780784412992.080
Publication status	Published - 2013
Event	5th BIOT Conference on Poromechanics (BIOT-5) - Vienna University of Technology (TU Wien), Vienna, Austria Duration: 10 Jul 2013 → 12 Jul 2013 Conference number: 5 http://biot2013.conf.tuwien.ac.at/

Conference

Conference	5th BIOT Conference on Poromechanics (BIOT-5)
Number	5
Location	Vienna University of Technology (TU Wien)
Country/Territory	Austria
City	Vienna
Period	10/07/2013 → 12/07/2013
Internet address	http://biot2013.conf.tuwien.ac.at/

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title = "Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine",

abstract = "The use of low field Nuclear Magnetic Resonance (NMR) to determine petrophysical properties of reservoirs has proved to be a good technique. Together with sonic and electrical resistivity measurements, NMR can contribute to illustrate the changes on chalk elasticity due to different pore water composition. In this study we relate NMR data to changes in P-wave velocity and electrical resistivity. Core plugs from outcrop Stevns chalk, of 44% porosity, were divided into groups of three and saturated with deionized water, calcite equilibrated water, as well as sodium chloride and magnesium chloride solutions of the same ionic strength. Saturation with a solution that contained divalent ions caused a major shift on the distribution of the relaxation time. The changes were probably due to precipitats forming extra internal surface in the sample. Sonic velocities were relatively low in the MgCl2 solution saturated plugs.",

author = "Konstantina Katika and Alam, {Mohammad Monzurul} and Fabricius, {Ida Lykke}",

year = "2013",

doi = "10.1061/9780784412992.080",

language = "English",

isbn = "978-0-7844-1299-2",

pages = "678--684",

booktitle = "Poromechanics V",

publisher = "American Society of Civil Engineers",

note = "5th BIOT Conference on Poromechanics (BIOT-5), BIOT ; Conference date: 10-07-2013 Through 12-07-2013",

url = "http://biot2013.conf.tuwien.ac.at/",

}

Katika, K, Alam, MM & Fabricius, IL 2013, Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine. in Poromechanics V: Proceedings of the Fifth Biot Conference on Poromechanics. American Society of Civil Engineers, pp. 678-684, 5th BIOT Conference on Poromechanics (BIOT-5), Vienna, Austria, 10/07/2013. https://doi.org/10.1061/9780784412992.080

Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine. / Katika, Konstantina; Alam, Mohammad Monzurul; Fabricius, Ida Lykke.
Poromechanics V: Proceedings of the Fifth Biot Conference on Poromechanics. American Society of Civil Engineers, 2013. p. 678-684.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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N2 - The use of low field Nuclear Magnetic Resonance (NMR) to determine petrophysical properties of reservoirs has proved to be a good technique. Together with sonic and electrical resistivity measurements, NMR can contribute to illustrate the changes on chalk elasticity due to different pore water composition. In this study we relate NMR data to changes in P-wave velocity and electrical resistivity. Core plugs from outcrop Stevns chalk, of 44% porosity, were divided into groups of three and saturated with deionized water, calcite equilibrated water, as well as sodium chloride and magnesium chloride solutions of the same ionic strength. Saturation with a solution that contained divalent ions caused a major shift on the distribution of the relaxation time. The changes were probably due to precipitats forming extra internal surface in the sample. Sonic velocities were relatively low in the MgCl2 solution saturated plugs.

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ER -

Nuclear magnetic resonance and sound velocity measurements of chalk saturated with magnesium rich brine

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