Quaternary coastal plains as reservoir analogs: Wave-dominated sand-body heterogeneity from outcrop and ground-penetrating radar, central Santos Basin, southeast Brazil

Berton, Fábio; Guedes, Carlos Conforti Ferreira; Vesely, Fernando Farias; Souza, Maria Cristina de; Ângulo, Rodolfo José; Rosa, Marcelo Prado Amaral; Barboza, Eduardo Guimarães

doi:10.1016/j.sedgeo.2018.11.008

Cited by 19 publications

(10 citation statements)

References 81 publications

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“…These sedimentary structures are likely equivalent to those described in the sedimentological exposure of beach ridge deposits [1,2,18]. These prograding beach facies (pf in Figures 2-4) have also been described in studies using GPR [19,24,25]. Towards the top, separated by an erosion surface, subhorizontal laminations likely correspond to the topset zone.…”

Section: Resultssupporting

confidence: 60%

“…Sigmoidal landward dipping reflections have been detected in the H6 units (wf in Figure 4). In other regions, equivalent radar facies have been associated with the active migration of washover fans in the back-ridge environment [24,25,30,37], in relation to storms or tsunami events. Laterally, sub-horizontal continuous reflections (landward dipping) appear (wcf in Figure 4).…”

Section: Resultsmentioning

confidence: 99%

“…Our study uses ground-penetrating radar (GPR). This geophysical prospecting method has already been successfully used to characterise the internal structures of sedimentary bodies, particularly the internal structure of coastal units [18][19][20][21][22][23][24][25]. Therefore, we propose that GPR is an appropriate and useful tool in this case.…”

Section: Introductionmentioning

confidence: 99%

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Ground-Penetrating Radar Study of Progradational Units in Holocene Coastal Plains: Carchuna Beach (SE Spain)

et al. 2020

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The internal geometries of progradational units on the coastal plain in southeastern Spain (Carchuna Beach, Granada) since the maximum Holocene marine transgression (ca. 7000 cal BP) have been analysed using ground-penetrating radar (GPR). Radargram analysis shows the presence of sedimentary structures consistent with the progradation of coastal plains, interpreted as laminations associated with the foreset and topset. Laterally, five middle scale progradational units (H2, H3, H4, H5 and H6) are identified. Each of these units can be grouped into two major units. The general trend towards progradation is interrupted at the boundary of the units. Minor scale units (prograding wedges), deposited at topographically lower areas, are detected in GPR profiles. The radargrams also show channel erosional surfaces and sigmoidal landward dipping reflections interpreted as washover channel deposits, with the erosion and transference of sediments between the beach and the back-ridge domain. Furthermore, the saturation of coastline sediments with saltwater rapidly attenuates the GPR signal. Thus, the GPR is also a good tool to detect saltwater intrusions in shallow aquifers.

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ground-Penetrating Radar Study of Progradational Units in Holocene Coastal Plains: Carchuna Beach (SE Spain)

et al. 2020

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“…The Donghe sandstone section in the Hadson area is a barrier-free littoral facies, which generally develop coastal sand dunes, backshore, foreshore, and littoral subfacies (Berton et al, 2019). The main sedimentary part of the Donghe sandstone reservoir is the shore subfacies, which is generally located underwater; thus, it is constantly subjected to wave action.…”

Section: Sedimentary Characteristicsmentioning

confidence: 99%

“…Many scholars have conducted research on outcrop heterogeneity, and outcrop studies have provided more intuitive data for reservoir heterogeneity research (Adam et al, 2018;Berton et al, 2019;Colombera, Mountney, Russell, Shiers, & McCaffrey, 2017;Labourdette & Jones, 2007;Zhang, Li, & Wen, 1997). According to the different scales of the research objects, the research on outcrop heterogeneity includes many scales: small scales (tens of centimetres vertically and less than 10 m laterally, e.g., facies transitions and cross-stratification; Burton & Wood, 2013), medium scales (less than 10 m vertically and tens of meters laterally, e.g., stacking of architectural elements; Correia, Maschio, Schiozer, & Santos, 2014;Gibling, 2006;Pranter, Ellison, Cole, & Patterson, 2007), and macro scales (tens of meters vertically and hundreds of meters laterally, e.g., spatial distribution of channelized sandbodies encased within floodplain mudstones; Bridge & Tye, 2000;Miall, 2002).…”

Section: Introductionmentioning

confidence: 99%

Microscopic heterogeneity and distribution characteristics of reservoirs controlled by a sequence framework: A case study of the Donghe sandstone reservoir in the Tarim Basin, SW China

Zhao

Yin

2021

Geological Journal

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In this article, abundant coring analysis results from underground reservoirs were used to understand the characteristics of reservoir micro‐heterogeneity within a sequence stratigraphic framework, primarily including the distribution of reservoir particles, fillings, and pore‐throat heterogeneities. The vertical distribution pattern of the reservoir micro‐heterogeneity is then summarized, and the controlling effect of the sequence frameworks at different levels on the micro‐heterogeneity distribution is discussed. Generally, the micro‐heterogeneity within the quasi‐sequence decreases from bottom to top, which is characterized by coarsening grain size, increasing quartz content, decreasing feldspar, debris, clay mineral, and calcareous cement content. The pore volume and throat radius and pore–throat connectivity have also been better with weakening secondary pore development and permeability anisotropies. Differences are observed in the micro‐heterogeneity distribution between the retrograde quasi‐sequence group and the progradational quasi‐sequence group. The micro‐heterogeneity vertical distribution in the retrograde quasi‐sequence group shows one set of characteristics from bottom to top, in which the grain size becomes finer, the calcareous precipitation degree increases, and the micro‐heterogeneity of the reservoir generally shows enhanced trend upward; however, the micro‐heterogeneity vertical distribution in the progradational quasi‐sequence group shows the opposite characteristics. The micro‐heterogeneity of the reservoirs in the system tract also shows some regularity. The sea level in the high system tract has risen and fallen several times and shows a relative fallen trend overall, and the micro‐heterogeneity weakens while progressing upward. Reservoir micro‐heterogeneity variations in the sequence framework are of great significance for determining reservoir quality and performing predictions during oil and gas exploration and development.

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Detection of soil physical properties of reclaimed land in open-pit mining area: feasibility of application of ground penetrating radar

Luo

Cao

Hanxiao

et al. 2021

Environ Monit Assess

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Quaternary coastal plains as reservoir analogs: Wave-dominated sand-body heterogeneity from outcrop and ground-penetrating radar, central Santos Basin, southeast Brazil

Cited by 19 publications

References 81 publications

Ground-Penetrating Radar Study of Progradational Units in Holocene Coastal Plains: Carchuna Beach (SE Spain)

Ground-Penetrating Radar Study of Progradational Units in Holocene Coastal Plains: Carchuna Beach (SE Spain)

Microscopic heterogeneity and distribution characteristics of reservoirs controlled by a sequence framework: A case study of the Donghe sandstone reservoir in the Tarim Basin, SW China

Detection of soil physical properties of reclaimed land in open-pit mining area: feasibility of application of ground penetrating radar

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