Mechanical and chemical compaction model for sedimentary basin simulators

Schneider, Frédéric; Potdevin, Jean-Luc; Wolf, Sylvie; Faille, I.

doi:10.1016/s0040-1951(96)00027-3

Cited by 146 publications

(130 citation statements)

References 21 publications

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“…Values chosen for cases 1 -3 are consistent with those from the literature (Figure 2). The value of the bulk viscosity, x(n 0 ) (Table 2), is comparable to values previously used in numerical studies which range between 1 Â 10 20 to 1 Â 10 24 Pa s [Birchwood and Turcotte, 1994;Schneider et al, 1996;Connolly and Podladchikov, 2000].…”

Section: Numerical Calculations and Resultssupporting

confidence: 82%

“…The constitutive creep law can be written as [e.g., Birchwood and Turcotte, 1994;Schneider et al, 1996;Connolly and Podladchikov, 1998;Fowler and Yang, 1999] …”

Section: Constitutive Relationships For Mechanical and Viscous Compacmentioning

confidence: 99%

“…Many studies have, however, shown that mechanical compaction alone cannot explain the generation of overpressured zones [e.g., Kooi, 1997]. Other mechanisms, including chemical phenomena such as pressure solution, which can be taken into account through viscous compaction, have been investigated [Schneider et al, 1996;Suetnova and Vasseur, 2000] as a cause of overpressures in older, preCenozoic, basins. In addition, there is the possibility that new fluids are generated, for example, by hydrocarbon formation [Spencer, 1994;Luo and Vasseur, 1996;Hansom and Lee, 2005].…”

Section: One-dimensional Study Of Overpressure Generation In Sedimentmentioning

confidence: 99%

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A numerical model for coupled fluid flow and matrix deformation with applications to disequilibrium compaction and delta stability

Morency¹,

Huismans²,

Beaumont³

et al. 2007

J. Geophys. Res.

100

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[1] A model is developed which couples fully saturated porous compaction to the viscous-plastic deformation of the skeleton matrix. The Darcy fluid flow during compaction is described by an advection-diffusion equation for the excess pressure with two source/sink terms that depend on the mechanical compressibility and viscous compaction of the pore space, the latter representing the effect of pressure solution. The incompressible deformation of the composite medium is described by a force balance equation and its rheology can be viscous, plastic, or viscoplastic (Bingham material). For the plastic and viscoplastic cases, the coupling between the compacting and plastically deforming parts of the system is through the Drucker-Prager frictional-plastic yield criterion modified by Terzaghi's principle, so that the yield strength depends on the effective dynamical pressure. The coupled system is solved using a two-dimensional (2-D) finite element method. Two problems are solved to demonstrate the behavior of our theory. The first considers compaction of a uniform sediment layer. The numerical results agree with the predictions of the nondimensional control parameters and previously published results. The second problem concerns 2-D kinematic progradation of deltaic sediments. Substratum and delta sediments have the same compaction properties and a Bingham rheology during deviatoric deformation, such that the delta undergoes linear postyield viscous flow. For certain depositional regimes, overpressure is generated. When pore pressures approach critical values, yielding occurs and the delta front fails and becomes unstable, spreading gravitationally under its own weight. The flow velocity is limited to geological rates by the Bingham viscosity. For the range of parameter values considered, pressure solution is the most effective mechanism for generating nearlithostatic fluid pressures that lead to initial failure, and it appears that mechanical compaction hardly contributes to the fluid overpressure at this stage.Citation: Morency, C., R. S. Huismans, C. Beaumont, and P. Fullsack (2007), A numerical model for coupled fluid flow and matrix deformation with applications to disequilibrium compaction and delta stability,

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Section: Numerical Calculations and Resultssupporting

confidence: 82%

“…The constitutive creep law can be written as [e.g., Birchwood and Turcotte, 1994;Schneider et al, 1996;Connolly and Podladchikov, 1998;Fowler and Yang, 1999] …”

Section: Constitutive Relationships For Mechanical and Viscous Compacmentioning

confidence: 99%

Section: One-dimensional Study Of Overpressure Generation In Sedimentmentioning

confidence: 99%

See 1 more Smart Citation

A numerical model for coupled fluid flow and matrix deformation with applications to disequilibrium compaction and delta stability

Morency¹,

Huismans²,

Beaumont³

et al. 2007

J. Geophys. Res.

100

View full text Add to dashboard Cite

show abstract

“…Use of these empirical relationships provided a practical solution in discretizing geomechanical properties in the current study area. Other published evidences of use of these relationships in basin modeling process include Alkawai (2014), Szydlik et al (2015), and Schneider et al (1996). The output of this process is a discretized geomechanical model of the reservoir along with other petrophysical properties.…”

Section: Integrated Modeling Approachmentioning

confidence: 99%

“…Biot (1941) established the theory of poro-elasticity for rocks and introduced Biot's coefficient in the definition of the effective stress (Schneider et al 1996).…”

Section: Model Integrationmentioning

confidence: 99%

An integrated approach to discretized 3D modeling of geomechanical properties for unconventional mature field appraisal in the western Canadian sedimentary basin

Saikia

Ikuku

Sarkar

2017

J Petrol Explor Prod Technol

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In mature field appraisal and development, discretized geomechanical property models play a vital role in providing information on in situ stress regime as a guide for placement of directional wells. Laboratory methods of measuring these properties, in most cases, take only small samples from consolidated rocks. These isolated samples may not be representative of the entire elastic regime existing in the reservoir owing to sample size. In general, geomechanical studies are performed on a well-by-well basis and then these measurements are used as calibration points to convert 3D seismic data (if available) to geomechanical models. However, elastic properties measured this way are restricted to the well location and interpolation across the reservoir may not be always appropriate. To overcome these challenges, this paper describes an integrated approach for deriving 3D geomechanical models of the reservoir by combining results of 3D geocellular models and basin models. The basin model reconstructs the geologic history (i.e., burial history) of the reservoir by back-stripping it to the original depositional thickness. Through this reconstruction, the mechanical compaction, pore pressures, effective stress, and porosity versus depth relationships are established. Next, these mechanical properties are discretized into 3D geocellular grid using empirical formulas via lithofacies model even if no 3D seismic data are available for the reservoir. The discretization of elastic properties into 3D grids results in a better understanding of the prevailing stress regimes and helping in design of hydraulic fracturing operations with minimal risks and costs. This approach provides an innovative way of determining effective horizontal stress for the entire reservoir through 3D distribution of elastic properties.

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Path dependence of the potential for compaction banding: Theoretical predictions based on a plasticity model for porous rocks

Buscarnera

Laverack

2014

JGR Solid Earth

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The paper presents a theoretical investigation of compaction banding based on a plasticity model for high-porosity rocks. The selected model is featured by a nonassociated flow rule and two internal variables simulating the competition between softening and hardening in the brittle-ductile transition. The parameters have been calibrated for two extensively studied rocks that exhibited localized compaction under laboratory conditions. In particular, the constants that control the compaction banding domain are defined by matching the stresses at which localized compaction was found in the experiments. The resulting parameters are used to simulate the stress-strain response for two loading modes (i.e., triaxial compression and radially constrained deformation), thus exploring the role of stress paths and kinematic constraints on the evolution of the compaction banding potential. The analyses suggest that the loading paths able to mobilize the plastic resources of the rock alter the potential for compaction banding through irreversible effects. A notable example is oedometric compression, for which the potential to generate localized compaction tends to vanish during the initial stages of inelastic loading. These predictions suggest that constraints to the mode of deformation can hinder the occurrence of compaction bands in the field. Moreover, they suggest that the interplay between kinematic constraints and evolution of the compaction banding potential can be used for experimental characterization purposes. As a consequence, these results emphasize the importance of complementing stress-controlled experiments with other tests able to explore different stress paths, thus providing additional data for an accurate characterization of rheological properties and strain-localization characteristics.

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Mechanical and chemical compaction model for sedimentary basin simulators

Cited by 146 publications

References 21 publications

A numerical model for coupled fluid flow and matrix deformation with applications to disequilibrium compaction and delta stability

A numerical model for coupled fluid flow and matrix deformation with applications to disequilibrium compaction and delta stability

An integrated approach to discretized 3D modeling of geomechanical properties for unconventional mature field appraisal in the western Canadian sedimentary basin

Path dependence of the potential for compaction banding: Theoretical predictions based on a plasticity model for porous rocks

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