Quantitative basin modeling: present state and future developments towards predictability

Tuncay, Kağan; Ortoleva, P.

doi:10.1111/j.1468-8123.2004.00064.x

Cited by 18 publications

(19 citation statements)

References 104 publications

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“…In seismogenic fault zones, ongoing compaction by IPS may lead to the formation of sealed compartments in which the pore fluid pressure increases until fault rupture recurs, thus controlling the seismic cycle [Caine et al, 1996;Renard et al, 2000. Similarly, the compaction of basin sediments and gouge-filled fault zones by IPS can determine the evolution of fluid pressure and fluid flow on the basin scale [Miller et al, 1999;Yang, 2000;Gratier et al, 2003;Tuncay and Ortoleva, 2004].…”

Section: Introductionmentioning

confidence: 99%

Compaction creep of wet granular calcite by pressure solution at 28°C to 150°C

2010

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[1] Uniaxial compaction experiments have been carried out on wet calcite powders prepared from milled limestone, analytical grade calcite, and superpure calcite. The tests were performed at 28°C-150°C, effective stresses of 20-47 MPa, and a pore pressure of 20 MPa, using presaturated CaCO 3 solution as the pore fluid. Sample grain sizes ranged from 12 to 86 mm. The aim was to determine if creep occurs by intergranular pressure solution (IPS) under these conditions and to identify the rate-controlling process. The wet samples showed significant creep, while dry and oil-flooded samples did not. Wet samples were also characterized by microstructures such as sutured grain contacts, grain indentations, and overgrowths, suggesting the operation of IPS. The behavior of the wet samples at low strains (<4-5%) agreed well with the predictions of standard models for diffusion-controlled pressure solution. However, at higher strains (5-10%), creep slowed down compared with the model predictions. Transient flow-through tests performed in this regime led to an acceleration of creep, consistent with models for precipitation-controlled IPS, and demonstrated an increase in the impurity content of the pore fluid toward higher strains. Since some of these impurities (notably Mg 2+ ) retard precipitation in calcite, we suggest that creep occurred by diffusion-controlled IPS at low strain, giving way to precipitation control at larger strains as impurities accumulated. Fitting of the diffusion-controlled IPS model to the low strain data yielded values of the grain boundary diffusion product DS in calcite of ∼10 −19 m 3 s −1 at 150°C.

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Section: Introductionmentioning

confidence: 99%

Compaction creep of wet granular calcite by pressure solution at 28°C to 150°C

2010

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“…Direct measures of input model parameters are typically scarce, when available. Hence, parameter estimation is usually performed through model calibration against available measures of state variables, such as temperature, porosity and pressure (Lerche, 1991;Zhao and Lerche, 1993;Tuncay and Ortoleva, 2004). Formaggia et al (2012) presented a comprehensive simulation tool for sandstone compaction in the presence of quartz cementation.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Analysis of Diagenetic Effects on Basin Scale Overpressure Dynamics

et al. 2013

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This study introduces a diagenetic modeling approach which is then applied to a simple one-dimensional scenario with an alternation of sandstone and shale layers. A key focus of the work is the analysis of the role of critical parameters that may drive pressure and overpressure dynamics in a basin. Due to its one-dimensional nature, the modeling technique presented can be currently applied as a Quality Control (QC) tool to assess the occurrence of diagenetic effects that might affect pressure evolution to assist in improving forecasting of overpressures in a new well in the same area or under similar geological settings. Coupling of hydro-geochemical and mechanical processes with the evolution of temperature enables one to model the effect of basin scale temperature-activated reactions on diagenetic scenarios. The resulting set of partial differential equations includes parameters whose values are always affected by high uncertainty. We provide uncertainty quantification (UQ) of the compaction process through a Global Sensitivity Analysis (GSA) of the system response following incomplete knowledge of a set of model parameters. The model response is approximated through a polynomial chaos expansion of the system dynamics. This decomposition provides (a) a GSA based on Sobol indices, and (b) a meta-model of the system that can then be adopted to perform multiple Monte Carlo realizations of the diagenetic process at an affordable computational time. Our results allow to (i) investigate the effect of parametric uncertainty on the system states, and (ii) perform robust parameter calibration within an inverse modeling framework. This work does not disclose significant data from the field or computer work; it contributes to improve our understanding and modeling of diagenesis of sandstones and shales and basin overpressure evolution. TX 75083-3836, U.S.A., fax +1-972-952-9435

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“…These and other studies (Cabrera 1996;Boadu 1998) show that predictions using reflection seismology are limited to a few rock properties. We suggest that seismic interpretation and our understanding of sedimentary basins can be greatly enhanced through the integration of comprehensive basin modelling (Tuncay et al 2000a,b;, 2003 and reflection seismic data. We have no knowledge of a previous attempt to study the complex evolution of heterogeneities that act as acoustic impedance contrasts and the interaction of tectonics from a comprehensive basin modelling approach.…”

Section: Introductionmentioning

confidence: 99%

“…This could allow us to aid the remote detection of economically impor- tant fractured compartments and conventional reservoirs as well as the estimation of tectonic conditions to which the basin was subjected. As a demonstration of our technique, the geothermal gradient is estimated using a comprehensive simulator, Basin RTM (Tuncay et al 2000a,b;, 2003 and reflection seismic data. In this study we use a Basin RTM simulated synthetic seismogram at 30…”

Section: Introductionmentioning

confidence: 99%

Simulation-enhanced fracture detection: research and demonstration in U.S. basins

Ortoleva

2005

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Quantitative basin modeling: present state and future developments towards predictability

Cited by 18 publications

References 104 publications

Compaction creep of wet granular calcite by pressure solution at 28°C to 150°C

Compaction creep of wet granular calcite by pressure solution at 28°C to 150°C

Preliminary Analysis of Diagenetic Effects on Basin Scale Overpressure Dynamics

Simulation-enhanced fracture detection: research and demonstration in U.S. basins

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