Determination of hydraulic properties of the Callovo-Oxfordian argillite at the bure site: Synthesis of the results obtained in deep boreholes using several in situ investigation techniques

Distinguin, Marc; Lavanchy, Jean-Marc

doi:10.1016/j.pce.2006.02.056

Cited by 40 publications

(17 citation statements)

References 7 publications

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“…9. A mean value of 3.41 Â 10 À20 m 2 was used for the intrinsic permeability [22]. The results of this calculation are shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the effective diffusion coefficient of the anions is considered as representative of that of the cations. The intrinsic permeability was estimated using different methods (e.g., hydraulic pulse tests, [22]) yielding values between 9 Â 10 À22 and 1 Â 10 À19 m 2 for the horizontal intrinsic permeability k. Several methods were used to estimate the porosity (e.g., mercury, kerosen), providing a mean value of 15% [19].…”

Section: The Callovo-oxfordian Argilitementioning

confidence: 99%

See 1 more Smart Citation

Experimental device for chemical osmosis measurement on natural clay-rock samples maintained at in situ conditions: Implications for formation pressure interpretations

Rousseau-Gueutin

Greef

Gonçalvès

et al. 2009

Journal of Colloid and Interface Science

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“…9. A mean value of 3.41 Â 10 À20 m 2 was used for the intrinsic permeability [22]. The results of this calculation are shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

Section: The Callovo-oxfordian Argilitementioning

confidence: 99%

Experimental device for chemical osmosis measurement on natural clay-rock samples maintained at in situ conditions: Implications for formation pressure interpretations

Rousseau-Gueutin

Greef

Gonçalvès

et al. 2009

Journal of Colloid and Interface Science

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“…The CallovianOxfordian (COX) argillite formation is extensively studied in the URL that ANDRA (the French agency for radioactive waste management) is operating in the Meuse Haute-Marne region in France. The COX formation is characterized by a low hydraulic conductivity of the order of 10 212 m s 21 consistently over the region investigated (Distinguin & Lavanchy 2007), a good homogeneity with virtually no tectonic-induced features such as fractures or joints, and a mineralogical composition that ensures high retention capacity and chemical stability (Gaucher et al 2004). From the mechanical viewpoint, the presence of quartz and carbonates in the rock composition gives the rock a reasonably high mechanical strength (Naumann et al 2007), whereas the clays and especially the swelling properties of smectite make the COX argillite easily deformable with a high potential to creep (Gasc-Barbier et al 2004;Zhang & Rothfuchs 2004;Fabre & Pellet 2006).…”

Section: Repositories In Soft Rock Formationsmentioning

confidence: 94%

Rock physics and geomechanics in the study of reservoirs and repositories

David

Ravalec-Dupin

2007

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Reservoir management for hydrocarbon extraction and repositories design for radioactive waste storage are two different areas in which rock physics and geomechanics provide valuable information. Although the targets and objectives are different, similar approaches and common attributes exist in both fields: safety assessment, short-to long-term prediction, integration of various scales of investigation, and remote monitoring, among others. Nevertheless, there are also important differences: reservoirs at depth are investigated through remote geophysical studies, well-logging and/or core samples retrieval, whereas direct access to repositories is possible through excavation in the host formation in which underground research laboratories can be constructed. We review a number of studies focusing on geomechanics and rock physics applied to the characterization of reservoirs and repositories, including laboratory experiments and predictive models, at different scales.Reservoir management and assessment of repository performance require the integration of different fields in Earth sciences, including geochemistry, geophysics, structural geology, and, in the case of interest here, rock physics and geomechanics. We present recent advances in the studies of reservoirs and repositories with the aim of emphasizing how rock physics and geomechanics help to obtain a better insight into important issues linked to reservoir management for exploitation of natural resources, and to repository safety assessment for hazardous waste storage in the geological environment.In the area of reservoir management, the importance of geomechanics in problems such as wellbore stability, hydraulic fracturing and subsidence is well known. Recently, there has been a growing interest in the development of a link between fluid flow simulators and geomechanical models. Several approaches have been proposed to incorporate the correct physics and to account for physical phenomena usually neglected in reservoir simulation. New techniques developed in laboratory studies provide relevant data for this integration. The approaches differ in the degree of coupling. The stronger the coupling, the more computationally demanding the simulation. Numerical experiments showed that coupling is of interest for poorly consolidated reservoirs such as chalk reservoirs. In other cases, one may wonder whether a more accurate modelling of production processes justifies the required computation cost. Complementary sensitivity studies have to be performed to better estimate the conditions in which the coupling is worthwhile.In the area of underground waste storage, the key issue is to design a repository as safe as possible for human activity and for the environment at the near surface, on time scales of the order of hundreds of years. This challenging task requires us to identify favourable geological targets for the storage, and to develop extensive scientific research in different fields, so as to obtain eventually a predictive model of the repository evolu...

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“…Bedding layers in the COx at the URL are nearly flat with a slight 1-2% regional dip towards NW (Distinguin & Lavanchy 2006;Delay et al 2006). These bedding layers cause anisotropy of hydraulic and mechanical behaviour of the rock.…”

Section: Callovo-oxfordian Claystonementioning

confidence: 97%

Coupled hydromechanical modelling of the mine-by experiment at Meuse-Haute-Marne underground rock laboratory France

Yildizdag¹,

Shao

Hesser

et al. 2014

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At the Meuse-Haute-Marne underground rock laboratory, France, a mine-by experiment was performed in the niche GCS by ANDRA. A 3D coupled hydraulic and mechanical (HM) continuum model was applied to understand the coupled HM mechanisms in the Callovo-Oxfordian claystone. Features such as transverse isotropy, shrinkage phenomena and permeability change induced by mechanical deformation were considered using the numerical code RockFlow. Intensive parameter studies in comparison with measured deformation and pore pressure data reduced model uncertainties. Fully saturated models showed very precise calculation results for the far-field zone sensors, but rapidly decreased pore pressure and continuously increased deformation in the near-field zone cannot be interpreted adequately even considering shrinkage and partially saturated flow models. A 2D isotropic damage model taking stiffness degradation into account was applied and acceptable calculation results were obtained for pore pressure evolution. However, the time-dependent deformation cannot be evaluated by the current model.

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Determination of hydraulic properties of the Callovo-Oxfordian argillite at the bure site: Synthesis of the results obtained in deep boreholes using several in situ investigation techniques

Cited by 40 publications

References 7 publications

Experimental device for chemical osmosis measurement on natural clay-rock samples maintained at in situ conditions: Implications for formation pressure interpretations

Experimental device for chemical osmosis measurement on natural clay-rock samples maintained at in situ conditions: Implications for formation pressure interpretations

Rock physics and geomechanics in the study of reservoirs and repositories

Coupled hydromechanical modelling of the mine-by experiment at Meuse-Haute-Marne underground rock laboratory France

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