3D forward modelling of the impact of sediment transport and base level cycles on continental margins and incised valleys

Granjeon, Didier

doi:10.1002/9781118920435.ch16

Cited by 53 publications

(56 citation statements)

References 77 publications

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“…DionisosFlow software is a 4-D process-based deterministic multi-lithology forward stratigraphic model that simulates basin filling (Granjeon, 1997(Granjeon, , 2014Granjeon and Joseph, 1999). A range of sedimentary processes are modeled including diffusive sediment transport, delta autoretreat, incision, largescale avulsion, and slope failure in response to tectonic, climate, and sea-level fluctuations during millennia and longer time scales (e.g., Pinheiro-Moreira, 2000; Rabineau et al, 2005;Alzaga-Ruiz et al, 2009;Gvirtzman et al, 2014;Harris et al, 2016;Hawie et al, 2017).…”

Section: Forward Stratigraphic Modelingmentioning

confidence: 99%

Grain-Size and Discharge Controls on Submarine-Fan Depositional Patterns From Forward Stratigraphic Models

2019

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Submarine fans are important components of continental margins; they contain a stratigraphic record of environmental changes and host large accumulations of oil and gas. The grain size and volume of sediment supply to fans is thought to control the heterogeneity of deep-water deposits; predicting spatial variability of sandy and muddy deposits is an important applied challenge in the characterization of fans. Here, we use DionisosFlow stratigraphic-forward models to evaluate the sensitivity of submarine-fan deposition to a range of grain sizes, with corresponding diffusion coefficients ranging from 10 to 100 km 2 /kyr for coarse sand to silt/clay, and discharges. In general, finer grains are transported farther in our models because they have larger diffusion coefficients. Coarser grains typical of a sand-rich fan tend to pile up and compensationally stack at the mouth of a proximal feeder channel. Increasing sediment-gravity-flow discharge resulted in a thicker depositional system; however, relatively coarse sediment piled up at the mouth of the feeder channel, which created a slope that promoted basinward sediment transport. Our modeling results can be applied to predict the overall geometry, stacking, and grain-size distribution of submarine fans. Improved understanding of grain-size and discharge controls also informs interpretation of the stratigraphic record of submarine fans. For example, outcrop observations of heterogeneity and compensational stacking of depocenters can be related to changing boundary conditions, namely changes in the caliber and overall supply of sediment delivery to deep-water basin margins.

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Section: Forward Stratigraphic Modelingmentioning

confidence: 99%

Grain-Size and Discharge Controls on Submarine-Fan Depositional Patterns From Forward Stratigraphic Models

2019

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“…DionisosFlow is a process-based multi-lithology diffusion driven forward modeling tool developed by IFPEN (Granjeon, 2014). Based on a diffusion algorithm that simulates the transport of different class of sediments at basin scale, the model allows for testing the relative impact of numerous parameters on the basin fill architecture (e.g.…”

Section: Stratigraphic Modeling Principlesmentioning

confidence: 99%

“…The diffusion coefficients (K) used in the present study are reported in Table 1. These coefficients are calibrated in order to reproduce realistic depositional slopes and sediment partitioning at basin scale (Alzaga-Ruiz et al, 2009;Burgess et al, 2006;Granjeon, 2014).…”

Section: Model Generalities and Input Datamentioning

confidence: 99%

“…The aim of the present work is to use the recent development in stratigraphic forward modeling of organicrich rocks (DionisosFlow and DORS) (Chauveau et al, 2013;Granjeon, 2014) to better understand the impact on organic accumulation of the spatial and temporal evolution of the primary productivity, sedimentation rates and oxygen levels at basin-scale in the Montney and Doig Formations.…”

Section: Introductionmentioning

confidence: 99%

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Controlling factors on source rock development: implications from 3D stratigraphic modeling of Triassic deposits in the Western Canada Sedimentary Basin

Crombez

Rohais

Baudin

et al. 2017

Bull. Soc. géol. Fr.

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-The recent development of unconventional resources has triggered a regain of interest for source-rocks. The presence of hydrocarbons in these unconventional systems is generally associated with organic-rich sediments. This study aims at better understanding the factors controlling the accumulation of marine organic matter at basin scale, using a process-based approach. This work focuses on the Montney, Doig and Halfway Formations (Lower and Middle Triassic, Alberta and British Columbia, Canada). Recent studies show that the Triassic strata of the Western Canada sedimentary basin can be considered as a transitional period between the Paleozoic passive margin and the Jurassic foreland basin. Based on a 3D regional stratigraphic architecture and on a description of the organic rich interval distribution, a processbased numerical model (DionisosFlow and DORS) has been used to simulate the stratigraphic evolution of the Montney, Doig and Halfway Formations and reproduce the organic distribution in these formations. This modeling approach allowed us to test different scenarios of primary productivity and basin restriction and discuss the regional controls on organic matter accumulation such as dynamic of anoxia or dilution of organic matter by detrital sediments. The reconstruction of the stratigraphic architecture emphasizes a major drop of the water discharge in the basin. In the absence of any evidence supporting a link with a climate change, the drop in water discharge suggests a major modification of the drainage area of the basin, potentially associated with the early stage of the cordilleran orogeny and foreland basin evolution. The numerical simulation also shows that the primary productivity rates in the Montney and Doig Formations are characteristic of a coastal area and that a basin restriction is required to account for the level of anoxia observed in the studied Formations. Lastly, this study investigates the regional controls on organic matter accumulation and emphasizes the impact of regional paleogeographic and geodynamic evolution on the dynamic of anoxia and on the dilution.Keywords: source rocks / stratigraphic modeling / organic matter / sedimentary fluxes / primary productivity / basin anoxia Résumé -Facteurs de contrôles sur la formation des roches mères : apport d'une modélisation stratigraphique 3D des formations du Trias du bassin ouest canadien. Le développement récent des hydrocarbures non conventionnels a suscité un regain d'intérêt pour les roches mères. La présence d'hydrocarbures dans ces systèmes non conventionnels est souvent associée à des dépôts riches en matière organique primaire. Cette étude vise à mieux comprendre les facteurs contrôlant l'accumulation de la matière organique en domaine marin à grande échelle, en utilisant une approche basée sur les processus.

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“…A stratigraphic model (Granjoen, 2014) had been developed for this type of reservoir. Three dimension geomechanical modeling has long been used to address this issue, through the use of three dimension volumes seismic attributes calibrated to laboratory measurments (Trudeng, Garcia-Teijero, Rodriguez-Herrera, & Khazanehdari, 2014).…”

Section: Introductionmentioning

confidence: 99%

Improving Drilling Success by Integrating Sedimentology and Diagenesis models: Case Study from South America

2015

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The improvement of the success of the well drilling is an important task during the development of hydrocarbon reservoirs, and the use of three dimension mechanical earth model (MEM) is key to predict the behavior of drilled well and to prevent damaging the well. The MEM encapsulates several information related to pore pressure, mechanical properties of the reservoir rock, the geometry of the reservoir limits and the overburden and the stress regime. Various workflows were proposed to build and update the MEM. However, those approaches do not incorporate the complexity of the carbonate rocks. In fact, the carbonate rocks, hold heterogeneous pore systems that impact the rock strength and the pore pressure behavior. The heterogeneity of the pore systems is due to the specificity of the deposition process of the carbonate rocks, mainly composed of fauna and or flora, and the rate of diagenesis.In this paper, we propose a workflow that improves the modeling of the mechanical properties for carbonate reservoirs. This workflow starts by reconciling data at different scales, diagenesis rate at thin-section scale, scratch and laboratory strength tests at plug scale, electrical logs at well scale, and three dimension sedimentology and seismic volumes at reservoir scale. The second step is to establish the relationship between the mechanical properties, the pore pressure, the seismic attributes, the sedimentology and the rate of diagenesis. The last step allows interpolating and assessing the uncertainty of the mechanical properties and pore pressure in the three dimension reservoir model.The workflow was applied to an off-shore carbonate field in South-America. It showed that there is a strong relationship between the type of fauna and flora, composing the carbonate rock, and the rock strength and pore pressure. The three dimension mechanical model, at hundred meter horizontal resolution and one foot vertical resolution, allowed to quantify the risk associated with the drilling of the previously planned wells, to improve the location for future drilling wells and to optimize the drilling parameters such as mud weight.

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3D forward modelling of the impact of sediment transport and base level cycles on continental margins and incised valleys

Cited by 53 publications

References 77 publications

Grain-Size and Discharge Controls on Submarine-Fan Depositional Patterns From Forward Stratigraphic Models

Grain-Size and Discharge Controls on Submarine-Fan Depositional Patterns From Forward Stratigraphic Models

Controlling factors on source rock development: implications from 3D stratigraphic modeling of Triassic deposits in the Western Canada Sedimentary Basin

Improving Drilling Success by Integrating Sedimentology and Diagenesis models: Case Study from South America

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