A three dimensional high-resolution reservoir model of Napo Formation in Oriente Basin, Ecuador, integrating sediment dynamic simulation and geostatistics

Tang, Mingming; Lu, Shuangfang; Zhang, Kexin; Yin, Xiangdong; Ma, Hongjuan; Shi, Xian; Liu, Xueping; Chu, Changhong

doi:10.1016/j.marpetgeo.2019.07.022

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…Nowadays, many experts and scholars both at home and abroad apply numerical simulations of sedimentary dynamics to the sedimentation in estuaries. Schramkowski et al (2002) conducted a numerical simulation of tidal-controlled estuaries in; Toffolon and Crosato (2007) (Tang et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

Analysis of fine grained sand and shale sedimentary characteristics in estuary based on sediment dynamics

Zhang

Hu²,

Wu³

et al. 2023

Front. Earth Sci.

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Due to the dual effects of fluvial and tides, the tidal sand bars in estuaries have complex sedimentary characteristics and complex internal structures, making them difficult to predict and describe. In this paper, the sedimentary dynamics numerical simulation method is used to establish a tidal-controlled estuary model. The effects of tidal range and sediment grain size on tidal sand bars are simulated. The length, width, and thickness of tidal sand bars, as well as the length and thickness of the internal shale layer, are also analyzed. The results show that in the environment of a tide-controlled estuary, the tidal range has a more significant effect on tidal sand bars compared to the sediment grain size under the specific conditions used in this study. The main effect of tidal range on tidal sand bars is that the greater the tidal range, the greater the length-to-width ratio of the sandbank, and the higher the degree of sandbank development. In a tidal-controlled estuary environment, the formation and distribution of shale layer structures are also affected by tides: the length of the shale layer increases as the tidal energy increases, but the changes in the thickness are not obvious. Numerical simulations of the development and distribution of the tidal sand bars and shale layers in estuaries based on sedimentary dynamics will provide a basis for the sedimentary evolution of tide-controlled estuaries and will provide guidance for the exploration and development of tidal estuaries.

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Section: Methodsmentioning

confidence: 99%

Analysis of fine grained sand and shale sedimentary characteristics in estuary based on sediment dynamics

Zhang

Hu²,

Wu³

et al. 2023

Front. Earth Sci.

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“…Facies analysis of isochronous stratigraphic slices can yield probability maps, and it also helps predict the horizontal distribution of sediments (as shown in the facies maps in Figure 13(b)) [49]. The isochronous seismic events corresponding to the floodplain sediments were selected as relatively reliable isochronal correlation indicators and were linearly interpolated and sampled to extract isochronous stratigraphic slices (Figure 13(a)) [50][51][52]. The amplitude value of sandstone is generally higher than that of mudstone after 90°phase transformation.…”

Section: Auxiliary Variables and Trendmentioning

confidence: 99%

Multiscale Modeling of Meandering Fluvial Reservoir Architecture Based on Multiple-Point Geostatistics: A Case Study of the Minghuazhen Formation, Yangerzhuang Oilfield, Bohai Bay Basin, China

Chen

Zhang

et al. 2021

Geofluids

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Meandering river reservoirs are essential targets for hydrocarbon exploration, although their characterization can be complex due to their multiscale heterogeneity. Multipoint geostatistics (MPS) has advantages in establishing reservoir architectural models. Training image (TI) stationarity is the main factor limiting the uptake of MPS modeling algorithms in subsurface modeling. A modeling workflow was designed to reproduce the distribution of heterogeneities at different scales in the Miocene Minghuazhen Formation of the Yangerzhuang Oilfield in the Bohai Bay Basin. Two TIs are established for different scales of architecture. An initial unconditional model generated with a process-based simulation method is used as the megascale TI. The mesoscale TI of the lateral accretion layers is characterized by an uneven spatial distribution of mudstone in length, thickness, frequency, and spacing. Models of different scales are combined by the probability cube obtained by lateral accretion azimuthal data as an auxiliary variable. Moreover, the permeability function sets are more suitable than the porosity model for collaboratively simulating the permeability model. Model verification suggests this workflow can accurately realize the multiscale stochastic simulation of channels, point bars, and lateral accretion layers of meandering fluvial reservoirs. The produced model conforms geologically realistically and enables the prediction of interwell permeability variation to enhance oil recovery.

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Development Characteristics and Main Controlling Factors of Tidal Sand Bar in Estuary

Zhang

Tang

Zhang

et al. 2022

Proceedings of the 2021 International Petroleum and Petrochemical Technology Conference

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A three dimensional high-resolution reservoir model of Napo Formation in Oriente Basin, Ecuador, integrating sediment dynamic simulation and geostatistics

Cited by 12 publications

References 32 publications

Analysis of fine grained sand and shale sedimentary characteristics in estuary based on sediment dynamics

Analysis of fine grained sand and shale sedimentary characteristics in estuary based on sediment dynamics

Multiscale Modeling of Meandering Fluvial Reservoir Architecture Based on Multiple-Point Geostatistics: A Case Study of the Minghuazhen Formation, Yangerzhuang Oilfield, Bohai Bay Basin, China

Development Characteristics and Main Controlling Factors of Tidal Sand Bar in Estuary

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