Fused spectral-decomposition seismic attributes and forward seismic modelling to predict sand bodies in meandering fluvial reservoirs

Yue, Dali; Li, Wei; Wang, Wurong; Hu, Guohang; Qiao, Hui; Hu, Jiajing; Zhang, Manling; Wang, Wenfeng

doi:10.1016/j.marpetgeo.2018.09.031

Cited by 54 publications

(6 citation statements)

References 41 publications

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“…Fully preserved bar deposits can serve as important flow-depth constraints in ancient rivers, and depending on the precision required for paleohydraulic reconstructions (e.g., Mohrig et al, 2000;Hajek and Heller, 2012;Trampush et al, 2014;Mahon and McElroy, 2018;Lyster et al, 2021;Hartley and Owen, 2022), the scale of bar packages, regardless of preservation, can generally facilitate first-order comparisons of paleo-river size. This may be particularly useful in systems where outcrop extent and exposure limit our ability to collect these data in abundance (e.g., Ielpi et al, 2018) or in subsurface analyses in which seismic or well-log datasets limit spatial resolution (e.g., Bridge and Tye, 2000;Donselaar and Schmidt, 2005;Castelltort, 2018;Yue et al, 2019;Li et al, 2019).…”

Section: Controls On Bar Preservation In Braided River Depositsmentioning

confidence: 99%

The fate of bars in braided rivers

Alpheus,

Hajek

2024

Preprint

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Ancient river deposits are important archives of past landscape conditions on planetary surfaces. On Earth, they host valuable groundwater, energy resources, and carbon-storage potential. Reconstructing details of paleochannel forms and movements refines our understanding of the controls on river behavior under different climate, landcover, and tectonic conditions, and improves predictions and models of subsurface reservoirs. While studies have shown detailed connections between channel kinematics and bar-deposit architecture in meandering river systems, similar connections between braided river movements and preserved braided river deposits have not been established. Here we explore the potential for connecting braided river deposits to paleochannel movements, form, and flow conditions, and we evaluate the controls on bar preservation using synthetic stratigraphy generated with a numerical morphodynamic model. We investigate how attributes of channel morphodynamics, like channel widening or braiding intensity, impact bar deposits’ preservation, scale, geometry, and architecture. We then assess how the scale, preservation, and facies composition of bar deposits reflect formative flow conditions of the channel. Our results demonstrate that no diagnostic signature of braided channel morphodynamics is recorded in bar-deposit geometry, facies, or preservation patterns. Rather, the unique local history of thread movements combines stochastically to preserve or rework bar deposits, and the timing of channel avulsion is the dominant control on bar preservation. Our results also show that representative paleochannel flow conditions will likely be accurately reflected in aggregate observations of braid bar deposits within channel-belt sandbodies at a regional or member/formation scale. These results demonstrate the need for broad sampling and statistical approaches to subsurface prediction and paleo-flow reconstruction in ancient, braided river deposits.

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Section: Controls On Bar Preservation In Braided River Depositsmentioning

confidence: 99%

The fate of bars in braided rivers

Alpheus,

Hajek

2024

Preprint

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“…The 3D seismic attributes have been successfully executed in subsurface systems and are aimed at exploring these oil- and gas-generating traps in sedimentary basins, which might be of structural, stratigraphic, or combination trap types [ 2 , 21 , 22 ]. Various researchers around the globe have applied various amplitude-based seismic attributes to look for additional oil and gas reserves [ [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] ]. The application of pure geological and full-spectrum geophysical tools constrains the prediction of porous stratigraphic traps.…”

Section: Introductionmentioning

confidence: 99%

Seismic attributes and spectral decomposition-based inverted porosity-constrained simulations for appraisal of shallow-marine lower-Cretaceous sequences of Miano gas field, Southern Pakistan

Naseer,

Naseem,

Singh

et al. 2024

Heliyon

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“…In recent years, the development of high-precision, three-dimensional (3D) seismic technology has aided the advancement of seismic sedimentology. Domestic and international scholars have applied the concepts and techniques of seismic sedimentology to the oil and gas exploration of various sedimentary types in various types of basins, and the resulting geological knowledge has been validated with practical applications 8,9,10 . International researchers use the combined feedback of high-precision seismic data, modern sedimentary environment, and outcrop paleo-sedimentary environment model to determine the 3D geometry, internal structure, and sedimentary process of a sedimentary unit, and thus advancing seismic sedimentology 11 .…”

Section: Introductionmentioning

confidence: 99%

Nearshore terminal fan and seismic sedimentology response characteristics: A case study of the first member of the Shahejie Formation in the Suning area of Raoyang Sag

Meng²,

Xie

et al. 2023

Preprint

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This study investigates the first section of the Shahejie Formation in the Suning area. Based on three-dimensional seismic, logging, drilling core and other data, and on the principle of seismic sedimentology, the difficulty in accurately characterizing thin sand bodies is resolved. Moreover, the study area is clearly defined as sediment from the western provenance, along with the identification of the nearshore terminal fan facies. This study aims to determine the seismic characteristics of sand body based on 90° phase optimization processing and frequency division interpretation processing to judge the relative isochronous seismic event, and a 45-Hz seismic data body is selected for stratum slice to realize the fine characterization of channel sand body. Finally, a high-precision sedimentological interpretation of stratigraphic slices reveals the seismic response characteristics and evolution rules of the nearshore terminal fan deposits.

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Fused spectral-decomposition seismic attributes and forward seismic modelling to predict sand bodies in meandering fluvial reservoirs

Cited by 54 publications

References 41 publications

The fate of bars in braided rivers

The fate of bars in braided rivers

Seismic attributes and spectral decomposition-based inverted porosity-constrained simulations for appraisal of shallow-marine lower-Cretaceous sequences of Miano gas field, Southern Pakistan

Nearshore terminal fan and seismic sedimentology response characteristics: A case study of the first member of the Shahejie Formation in the Suning area of Raoyang Sag

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