NMR relaxation of neritic carbonates: An integrated petrophysical and petrographical approach

Vincent, Benoı̂t; Fleury, Marc; Santerre, Yannick; Brigaud, Benjamin

doi:10.1016/j.jappgeo.2011.03.002

Cited by 91 publications

(81 citation statements)

References 20 publications

(34 reference statements)

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“…Vincent et al [34] showed that the larger pores in the Massangis limestone are formed by the partial dissolution of dolomite molds. The MRJ1, the zone with strong water uptake, underwent a more intense dolomitization phase followed by dedolomitization compared to the zone where uptake is almost absent (MRJ2).…”

Section: Discussionmentioning

confidence: 99%

3D mapping of water in oolithic limestone at atmospheric and vacuum saturation using X-ray micro-CT differential imaging

Boone

Kock

Bultreys

et al. 2014

Materials Characterization

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Section: Discussionmentioning

confidence: 99%

3D mapping of water in oolithic limestone at atmospheric and vacuum saturation using X-ray micro-CT differential imaging

Boone

Kock

Bultreys

et al. 2014

Materials Characterization

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“…The krypton BET specific surfaces were used to approximate the NMR surface relaxivity ρ 2 according to equation , using the Halbach measurements [ Hossain et al ., ; Vincent et al ., ]:

\frac{true}{1} ≅ ρ_{2} * \frac{true}{S_{T}}

…”

Section: Methodsmentioning

confidence: 99%

Multiscale approach to (micro)porosity quantification in continental spring carbonate facies: Case study from the Cakmak quarry (Denizli, Turkey)

Boever

Foubert

Oligschlaeger

et al. 2016

Geochem Geophys Geosyst

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Carbonate spring deposits gained renewed interest as potential contributors to subsurface reservoirs and as continental archives of environmental changes. In contrast to their fabrics, petrophysical characteristics -and especially the importance of microporosity (< 1mm) -are less understood. This study presents the combination of advanced petrophysical and imaging techniques to investigate the pore network characteristics of three, common and widespread spring carbonate facies, as exposed in the Pleistocene Cakmak quarry (Denizli, Turkey): the extended Pond, the dipping crystalline Proximal Slope Facies and the draping Apron and Channel Facies deposits formed by encrustation of biological substrate. Integrating mercury injection capillary pressure, bulk and diffusion Nuclear Magnetic Resonance (NMR), NMR profiling and Brunauer-Emmett-Teller (BET) measurements with microscopy and micro-computer tomography (m-CT), shows that NMR T 2 distributions systematically display a single group of micro-sized pore bodies, making up between 6 and 33% of the pore space (average NMR T 2 cut-off value: 62 ms). Micropore bodies are systematically located within cloudy crystal cores of granular and dendritic crystal textures in all facies. The investigated properties therefore do not reveal differences in micropore size or shape with respect to more or less biology-associated facies. The pore network of the travertine facies is distinctive in terms of (i) the percentage of microporosity, (ii) the connectivity of micropores with meso-to macropores, and (ii) the degree of heterogeneity at micro-and macroscale. Results show that an approach involving different NMR experiments provided the most complete view on the 3-D pore network especially when microporosity and connectivity are of interest.

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“…These micropores display specific log responses (e.g. gamma ray, sonic, resistivity) and have a major influence on petrophysical properties and oil recovery because capillary forces are strong and irreducible water common (Pittman, 1971;Cantrell and Hagerty, 1999;Trabesli and Beg, 2000;Smith et al, 2003;Richard et al, 2007;Fournier and Borgomano, 2009;Maliva et al, 2009;Vincent et al, 2011). Because their comparatively low porosity and permeability make water/oil saturation/recovery difficult to predict and achieve (Kieke and Hartmann, 1974;Petricola et al, 2002;Ahr et al, 2005;Mallon and Swarbrick, 2008), microporous limestones have until now received less attention than coarser macroporous limestones.…”

Section: Introductionmentioning

confidence: 99%

Morphometry of micrite particles in cretaceous microporous limestones of the Middle East: Influence on reservoir properties

Perière

Durlet

Vennin

et al. 2011

Marine and Petroleum Geology

117

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NMR relaxation of neritic carbonates: An integrated petrophysical and petrographical approach

Cited by 91 publications

References 20 publications

3D mapping of water in oolithic limestone at atmospheric and vacuum saturation using X-ray micro-CT differential imaging

3D mapping of water in oolithic limestone at atmospheric and vacuum saturation using X-ray micro-CT differential imaging

Multiscale approach to (micro)porosity quantification in continental spring carbonate facies: Case study from the Cakmak quarry (Denizli, Turkey)

Morphometry of micrite particles in cretaceous microporous limestones of the Middle East: Influence on reservoir properties

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