Compaction bands and induced permeability reduction in Tuffeau de Maastricht calcarenite

Baxevanis, Theocharis; Papamichos, E.; Flornes, Olav; Larsen, I.

doi:10.1007/s11440-006-0011-y

Cited by 65 publications

(37 citation statements)

References 30 publications

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“…Tembe et al [25] observed compaction bands at several tens MPa in Bleurswiller sandstone, which was still at least 20 MPa higher than the inferred stress in the field. Using Tuffeau de Maastricht calcarenite, Baxevanis et al [26] observed that the compaction bands under the stress levels were closed to the field. Tembe et al [25] using the data from the field found that the thickness of compaction bands had a quadratic relation with its length.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on formation mechanism of compaction bands in weathered rocks with high porosity

Han

Liu

Wang

2013

Sci. China Technol. Sci.

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Since Mollema and Antonellini observed compaction bands in the field in 1996, different patterns of compaction bands have been found in laboratory experiments. There are some discrepancies between the laboratory experiments and the field observations: compared to the field observation, the stress levels required to induce compaction bands in laboratory experiments are usually higher than the inferred in the field, and the grain crushing are more intense in the laboratory experiments. In this paper, compaction bands were observed at the maximal principal stresses below 8 MPa, which is lower than the stress level inferred in the field, and there was no severe comminution inside the compaction bands. Experimental results indicate that the porosity and confining pressure have great impacts on the types of localization bands. Lower porosity and confining pressure can promote the growth of shear bands and high-angle shear bands. Higher porosity and confining pressure can promote the growth of discrete compaction bands. Intermediate porosity and confining pressure are favorable for the growth of hybrid modes involving two of the three, i.e., discrete compaction band, diffuse compaction band and high-angle shear band. The formation of discrete compaction bands is more unstable compared to diffuse compaction bands. The two types of compaction bands can appear in the same type rocks, and diffuse compaction bands are formed under lower confining pressure compared to discrete compaction bands. The reduction of permeability was within 2 orders of magnitude in this study, and it is 23 orders of magnitude lower than those obtained by other researchers. porous rock, compaction band, permeability evolution Citation:Han G F, Liu X L, Wang E Z. Experimental study on formation mechanism of compaction bands in weathered rocks with high porosity.

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Section: Introductionmentioning

confidence: 99%

Experimental study on formation mechanism of compaction bands in weathered rocks with high porosity

Han

Liu

Wang

2013

Sci. China Technol. Sci.

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“…Within porous granular carbonate rocks there is a growing body of documentation covering the structure, mechanics and kinematics of natural deformation bands (Tondi et al 2006Tondi 2007;Antonellini et al 2008Antonellini et al , 2014bAgosta et al 2009;Cilona et al 2012;Rustichelli et al 2012) as well as laboratoryinduced deformation bands (Baxevanis et al 2006;Baud et al 2009;Vajdova et al 2010;Zhu et al 2010;Cilona et al 2012Cilona et al , 2014Ji et al 2015). Studies reporting permeability, on the other hand, are scarce but suggest that deformation bands in carbonate rocks are associated with a permeability reduction of 1 -3 orders of magnitude relative to host rock (Rath et al 2011;Antonellini et al 2014a, b;Tondi et al 2016).…”

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confidence: 99%

Do deformation bands matter for flow? Insights from permeability measurements and flow simulations in porous carbonate rocks

Rotevatn

Fossmark

Bastesen

et al. 2016

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We investigate the permeability and flow effects of deformation bands in porous granular carbonate rocks in Malta and use results from flow simulations to discuss the practical implications of deformation bands in carbonate and siliciclastic reservoirs rocks in general. Image-and laboratory-based analyses of deformation bands show permeabilities that are 1 -2 orders of magnitude lower than the adjacent host rocks. Small-scale outcrop-based flow models (1 × 1 m) focus on the effect of deformation band on flow at the scale of individual bands. Two-phase flow simulations (water displacing oil) show that at the local scale a decrease in deformation band permeability led to increasing flow complexity, reduced and irregular waterfront propagation and reduction in sweep efficiency. A reduction in host rock permeability is associated with increased sensitivity to deformation bands. In low-permeable host rocks, a single magnitude-order reduction of deformation band permeability significantly delays flow, whereas in higher-permeable host rocks the effect is less pronounced. Hence, in some cases, deformation bands may represent a significant impediment to flow already when they are only 1 -2 orders of magnitude less permeable than host rock. Consequently, deformation bands may have greater practical implications than previously thought, particularly in reservoir rocks with moderate to low host rock permeability.

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“…Final damage consists of crushing and compaction rather than de-bonding of grains. Crushing and compaction are also observed in compaction shear bands in triaxial testing under high confinement (Baxevanis et al 2006). Under uniaxial loading conditions, cement connections and more rarely connections between cement fringes and grains are broken and grains remain intact (Molenaar and Venmans 1993).…”

Section: Calcarenitementioning

confidence: 97%

Evaluation of micro-structural damage caused by needle penetration testing

Ngan-Tillard

Engin

Verwaal

et al. 2012

Bull Eng Geol Environ

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The needle penetrometer (NP) is a nondestructive, cheap and simple device which can be used indirectly to obtain the uniaxial compressive strength of extremely weak rocks. It requires little sample preparation and can be used in the field and laboratory and applied in natural and man-made structures where sampling is not allowed. The microstructural damage created by the needle, its shape and size, have been assessed using four rock types (marl, mudstone and tuff from Turkey and calcarenite from the Netherlands) and two types of needle. During needle penetration, very high compressive and shear stresses are developed in advance of the needle and normal to the shaft. In all the tested rocks, densification occurred in a zone some 0.4 and 1 mm ahead of the Maruto and Eijkelkamp needles respectively. The grains are crushed and compacted in a zone which appears like an extension of the needle tip (Eijkelkamp needle). As damage is local, the NP test is said to be non-destructive. The NP results in coarse grained rocks are far more variable than in fine grained rocks. The damage caused by a needle decreases with a decrease in the diameter of the needle and an increase in the slenderness of the needle.

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Compaction bands and induced permeability reduction in Tuffeau de Maastricht calcarenite

Cited by 65 publications

References 30 publications

Experimental study on formation mechanism of compaction bands in weathered rocks with high porosity

Experimental study on formation mechanism of compaction bands in weathered rocks with high porosity

Do deformation bands matter for flow? Insights from permeability measurements and flow simulations in porous carbonate rocks

Evaluation of micro-structural damage caused by needle penetration testing

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