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Heterogeneities and Intra Sand-Body Compartmentalization in Late Oligocene Delta-Front Deposit, Niger Delta, Nigeria
2016
American Journal of Geoscience
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This paper presents the study of the heterogeneity in lithofacies, porosity, permeability, mineral grain density, pore-throats sizes and hydraulic rock types and the intra sand-body compartmentalization ...
Sedimentological study of core samples results in the identification of nine lithofacies and the interpretation of environments of deposition as mainly proximal and distal delta-front mouth bar. ...
Michael Ndubuisi Oti: Supervised and coordinated the research.
Ethics This article is original and contains unpublished material. ...
doi:10.3844/ajgsp.2016.47.64
fatcat:6uhptnqv4ze6zncqvsqhoxx45a
Effects of Geological Heterogeneity on CO2 Distribution and Migration - A Case Study from the Johansen Formation, Norway
2013
Energy Procedia
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The existence of laterally continuous calcite cemented layers and draping mud layers of low permeability in association with flooding events, could compartmentalize the reservoir. ...
In characterizing subsurface reservoirs for CO 2 storage, the geological heterogeneity distribution is of importance with respect to the injectivity and migration paths. ...
This work has been partly funded by the University of Oslo and the SUCCESS centre for CO 2 storage under grant 193825/S60 from the Research Council of Norway (RCN). ...
doi:10.1016/j.egypro.2013.06.418
fatcat:cgswmu5wgrft7gevnwht43qagu
Small-Scale Diagenetic Heterogeneity Effects on Reservoir Quality of Deep Sandstones: A Case Study from the Lower Jurassic Ahe Formation, Eastern Kuqa Depression
2021
Geofluids
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Thus, ductile-lean sandstones constitute effective reservoir rocks in deep reservoirs. ...
The petrofacies remained relatively porous and permeable before early oil arrival. With continued burial, the porosity and permeability in the sandstones were further reduced by cementation. ...
XDA14010202) and the National Science and Technology Major Project (no. 2017ZX05008-004). ...
doi:10.1155/2021/6626652
fatcat:umworu5whvexfkej5wq34xn7be
The stratigraphic evolution of onlap in siliciclastic deep-water systems: Autogenic modulation of allogenic signals
2019
Journal of Sedimentary Research
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Seafloor topography affects the sediment gravity flows that interact with it. ...
Understanding this interaction is critical for accurate predictions of sediment distribution and paleogeographic or structural reconstructions of deep-water basins. ...
Mayall helped clarify both the content and presentation of the manuscript, and are gratefully acknowledged. Associate Editor S. Hubbard and Corresponding Editor J. ...
doi:10.2110/jsr.2019.49
fatcat:ifa56yfzcvdxffizbhi75swpwy
Reservoir Pore Characteristics Based on Depositional Microfacies Control in the Neogene Guantao Formation, Bohai Bay Basin, China
2022
Energies
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The Neogene Guantao Formation Reservoir in the PLOilfield is a unconsolidated sandstone with high porosity and high permeability. ...
In this study, seven typical sedimentary microfacies were identified and the microscopic characteristics of different sedimentary microfacies reservoirs are described. ...
The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. ...
doi:10.3390/en15082870
fatcat:qzkjdel3bzf7tbftixbavguys4
Neogene Tectonics in Croatian Part of the Pannonian Basin and Reflectance in Hydrocarbon Accumulations
[chapter]
2011
New Frontiers in Tectonic Research - At the Midst of Plate Convergence
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Sea level was lowered, salinity was reduced (existence of brackish environment) and, most importantly, the deep-water turbidites that originated in the Alps had been activated in some parts of PBS. ...
Heterogeneity of rocks is accompanied with large (and somewhere rapid) changes in thicknesses. ...
doi:10.5772/21270
fatcat:ggbtjkqtwbgabapuhiy4qnlfe4
Effect of Permo-Carboniferous Climate on Illite-Smectite, Haushi Group, Sultanate of Oman
1999
Clays and clay minerals
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Different starting compositions lead to three distinct trends of illite layers in I-S versus temperature for different sedimentary environments and paleoclimatic conditions. ...
Physical, chemical and environmental factors were investigated as causes for the different starting compositions of I-S. ...
Lake, K. van der Zwan (all PDO) for their support and discussions during various stays in Muscat. We appreciate the help of S. ...
doi:10.1346/ccmn.1999.0470203
fatcat:4g2oq5ujc5cjjpxn6jbqauifea
Large soft-sediment deformation structures (SSDS) in the Permian Barren Measures Formation, Pranhita-Godavari Valley, India: potential link to syn-rift palaeoearthquake events
2020
Journal of Palaeogeography
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Coarse-grained pebbly sandstone beds near the base of each cycle record most SSDS, including complexly deformed layers, pseudonodules, load and flame structures, various water-escape structures like vertical ...
In addition, the deformed beds comply with most of the criteria of typical seismites. ...
Zeng-Zhao Feng, the Editor-in-Chief, for considering the paper for an oral presentation in the 4 th International Conference of Palaeogeography and for publication in the Journal of Palaeogeography. ...
doi:10.1186/s42501-020-00063-z
fatcat:4hsx4ae5jngqph5gl5pjwnu6tm
Carbon and oxygen isotope composition of Cambra-Silurian limestone and anthraconite from Bornholm: Evidence for deep burial diagenesis
1985
Bulletin of the Geological Society of Denmark
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The values reflect differences between carbonate precipitated in equilibrium with marine bicarbonate and carbonate formed in the sulphate reduction zone of the bottom sediments. ...
Oxygen isotope compositions of primary limestone and concretions are lithologi- cally and stratigraphically homogenized to values significantly different from those of diagenetically unaffected marine ...
Nyegaard and B. Warming for preparatory work and to T. Cederberg for maintenance of the mass spectrometer. R. G. Bromley and Erik Thomsen gave critical comments on the manuscript. ...
doi:10.37570/bgsd-1984-33-32
fatcat:hry3ul5xqjczldpjaid4qo7htq
Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran
2016
Petroleum Science
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The upper Cretaceous Sarvak reservoir in the Azadegan oil field of southwest Iran has its oil-water contact nearly horizontal from the north to the center and dips steeply from the center to the south. ...
Generally, in the field, the Sarvak reservoir is massive and vertically heterogeneous, and impermeable interlayers are rare. ...
In the southern structural high, compared with the secondary reservoir of the Sarvak with the tilted oil-water contact and huge geologic uncertainty, the lower sandstone reservoirs are more reliable and ...
doi:10.1007/s12182-016-0077-6
fatcat:df77n2f76fbwjnqztfwajyygpe
The impact of fine-scale reservoir geometries on streamline flow patterns in submarine lobe deposits using outcrop analogues from the Karoo Basin
2016
Petroleum Geoscience
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Improved prediction of the recovery of oil-in-place in basin-floor fan reservoirs requires 12 accurate characterisation and modelling of multiscale heterogeneities. ...
The use of deterministic sedimentary architecture 26 concepts and facies relationships have proven vital in the accurate modelling of reservoir 27 heterogeneities. 28 29 ...
(10-5000 mD) has to be accounted for. 453 Furthermore, the impact of heterogeneities caused by (partly) argillaceous sandstones have been 454 considered. ...
doi:10.1144/petgeo2016-087
fatcat:4oetbxwgvrc4di6tnnfaicsogi
Nodular features from Proterozoic Sonia Sandstone, Jodhpur Group, Rajasthan: A litho-biotectonic perspective
2013
Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences
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present within Type I nodules, and appreciation of control of associated fracture system within Type II nodules, it is proposed that the two types of nodules vary in their formative mechanism and stage ...
On the basis of mode of occurrence (intra-or interbed) and stratal involvement (single or multiple) the features are classified as Type I and II. ...
Acknowledgements The authors thankfully acknowledge research funding from University of Delhi. Department of Geology, University of Delhi provided necessary infrastructure and instrumental facilities. ...
doi:10.1007/s12040-013-0274-2
fatcat:lrdjxz7ekndsvjazzalf5jaqxm
GEOLOGICAL CONTRIBUTION TO THE TECTONO- STRATIGRAPHY OF THE NAFPLION AREA (NW ARGOLIS, GREECE)
2017
Bulletin of the Geological Society of Greece
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The geological mapping in scale 1:5.000 in the greater Nafplion area indicated a Tertiary nappe stack of different Pelagonian-originated tectonic units structurally overlying the Subpelagonian series of ...
The Subpelagonian series as lower unit is characterized by a shallow-water carbonate platform of Middle Triassic to Early Jurassic age, locally deep-water ammonitico-rosso facies and red cherts and is ...
The ophiolitic melange consists of turbiditic sorted layers of fine-grained distal detritic ophiolitic sediments (5-50m thick) alternating with sorted layers rich in ophiolitic clasts, in addition to thin ...
doi:10.12681/bgsg.11324
fatcat:a6ocsvzz6nhg7flf4yp2ut7pye
GEO 2010 Abstracts Part I
2011
GeoArabia
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GEO 2010 was organized by Arabian Exhibition Management (AEM), the American Association of Petroleum Geologists (AAPG) in collaboration with the European Association of Geoscientists and Engineers (EAGE ...
In the next issues of GeoArabia, additional groups of GEO 2010 abstracts will be published so that a permanent record of these important studies is available to GeoArabia's readers and the international ...
These facies could represent the deep-water end of the onshore fluvial origin Al Khawd Formation, from North Oman. ...
doi:10.2113/geoarabia1601151
fatcat:7ergvjakufbwvn424cpxniehna
Fine Correlation and Well Pattern Optimization of Extra-high Water Cut Reservoirs: Case Study of-With Fuyu Oilfield as an Example
2022
Journal of Engineering Science and Technology Review
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Invalid or inefficient circulation of water injection is aggravated in the development stage of extra-high water cut reservoirs. ...
The study can provide a good reference for fine reservoir correlation and well pattern adjustment of the same type of reservoirs in the ultra-high water cut development stage. ...
Acknowledgements
This work was supported by the Science Project of Jilin Oilfield Exploration and Development Research Institute (Grant No. JZ-30-46). ...
doi:10.25103/jestr.153.22
fatcat:bw6yn5tmjbfkzke455xl7q22hy
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