Shallow-marine Sandstone Reservoirs, Depositional Environments, Stratigraphic Characteristics and Facies Model: A Review

Siddiqui, Numair Ahmed; Rahman, Abdul Hadi Abd; Sum, Chow Weng; Yusoff, Wan Ismail Wan; Ismail, Mohammad Suhaili bin

doi:10.3923/jas.2017.212.237

Cited by 19 publications

(7 citation statements)

References 47 publications

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“…Ms and Cs from the P zone display high swelling capacity (CEC over 20 meq/100g). Przelaskowska A., Zagórska U., Urbaniec A., Łykowska G., Klaja J., Grela J., Kędracka It should be emphasized that lithofacial classifications of heterolithic formations are usually based on sedimentological studies, macroscopic and microscope observations (Donselaar & Geel 2007, Siddiqui et al 2017, Riegel et al 2019). The presented work was aimed at using macroscopic observations as well as XRD and XRF studies for distinction and characterization of particular lithotypes.…”

Section: Discussionmentioning

confidence: 99%

Mineralogical characteristics of the heterolithic formations from the Carpathian Foredeep Miocene sediments, south-eastern Poland

Przelaskowska

Zagórska

Urbaniec

et al. 2022

geol

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Heterolithic complexes from the Carpathian Foredeep are a subject of growing attention as many natural gas accumulations of industrial importance have been discovered in such formations during the last decades. The aim of the presented work was to determine lithotypes of different lithology and mineralogical composition in the heterolithic sequences. Individual lithotypes were distinguished of macroscopic observations of cores, X-ray diffraction analysis (XRD) and X-ray fluorescence method (XRF). Preliminary distinction of the lithotypes was based on macroscopic observations of the core samples. Correlation plots between the contents of particular minerals (XRD analyses) and corresponding elements (XRF analyses) were used for verification of the lithotypes distinguished on the basis of macroscopic observations. Swelling properties of the investigated rocks were determined using the cation exchange capacity (CEC) values. The following lithotypes were identified: medium- to fine-grained sandstones, fine- to very fine-grained sandstones, clayey sandstones, sand-dominated heteroliths, heteroliths with equal proportions of sandstones and mudstones, mud-dominated heteroliths, mudstones, clayey shales. Such division provides a basis for precise petrophysical characterization of the analyzed profiles, that is assignment of particular petrophysical parameters values to individual lithotypes. More reliable petrophysical parameters in the geophysical interpretation of heterolithic sequences allow for a more precise determination of zones characterized by good reservoir parameters.

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Section: Discussionmentioning

confidence: 99%

Mineralogical characteristics of the heterolithic formations from the Carpathian Foredeep Miocene sediments, south-eastern Poland

Przelaskowska

Zagórska

Urbaniec

et al. 2022

geol

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“…The depositional environment of the sandstone samples in Bokor formation have been interpreted based on the detail study of the stratigraphic log, and petrography analysis. The sandstone lithofacies at Bokor formation consist of sedimentary structures, such as planar cross-bedding, cross-bedding, parallel lamination, normal grading, massive, wavy and reverse graded-bedding, which indicates these lithofacies may be deposited in shallow marine environment [24] [25]. Moreover, the result of petrography analysis showed sandstones are quartz arenite which are dominant of quartz mono and polycrystalline over 95%.…”

Section: Depositional Environmentmentioning

confidence: 99%

Characterization of Sandstone Reservoir at Bokor Formation, Kampot Province, Kampong Som Basin, Onshore Cambodia

Oeur,

Or,

Eng

et al. 2023

IJG

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Kampong Som Basin is a Paleozoic-Mesozoic sedimentary basin located in southern Cambodia. While the sandstone of the Bokor Formation is expected to be the reservoir for hydrocarbon accumulation. Hence, this study aims to define the properties, quality, and factors that control reservoir rock quality. Sandstones of the Bokor Formation are sampled and analyzed using a helium porosimeter, nitrogen permeameter, polarized light microscope, and scanning electron microscope (SEM) to check the porosity, permeability, minerals, pore geometry, and clay minerals that influence the reservoir quality. According to the result of petrography analysis described by thin section, the sandstone samples from Bokor formation are classified as quartz arenite that composes mainly of quartz, rock fragment, mica-flake, and sericite with connected and unconnected pores of 50 μm to 500 μm with interparticle pore type. Sandstones in this formation have porosity values ranging from 6.55% to 13.19%, and permeability values ranging from 10 mD to 60 mD. The statistics of porosity and permeability of sandstone reservoirs indicate low porosity and permeability that are suggested to be fair reservoir rock for hydrocarbon accumulation. SEM results indicate that there are three types of authigenic clay minerals involving such as kaolinite, illite, and chlorite. In addition, the pore geometry, quartz overgrowth, dissolution of quartz and felspar grain filling in pore space, compaction, replacement diagenesis processes, and cementation presence of clay minerals are the main controlling factors of the sandstone reservoir from the Bokor Formation. Furthermore, this area exhibits sedimentary structures such as planar cross-bedding, cross-bedding, parallel lamination, normal grading, massive, wavy, and reverse graded bedding, which indicates these lithofacies may be deposited in shallow marine envi-

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“…Sedimen pada muara sungai berjenis pasir sangat halus, kemudian sedimen pada spit berjenis pasir halus hingga pasir sedang, sedangkan di perairan laut sedimennya berjenis pasir sedang di stasiun yang dekat dengan garis pantai dan dominasi jenis pasir halus hingga lepas pantai. Hal ini sesuai dengan pernyataan Siddiqui et al, (2017) bahwa pada muara yang didominasi oleh gelombang, sedimen yang lebih kasar memiliki kecenderungan untuk terkonsentrasi di pantai dan sedimen halus bergeser ke lepas pantai. Selain itu, pada muara sungai terbentuk spit dengan dominan sedimen jenis pasir halus.…”

Section: Hasil Dan Pembahasanunclassified

Studi Perubahan Garis Pantai di Perairan Muara Sungai Kaliboyo, Batang

Zadia

Hariyadi

Atmodjo

et al. 2020

Indonesian Journal of Oceanography

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Perairan Muara Sungai Kaliboyo kawasan yang dinamis dan cepat mengalami perubahan garis pantai dan terbentuk spit di mulut sungai. Sedimen di daerah tersebut sering menutup muara sungai, sehingga mengganggu alur layar nelayan. Tujuan dari penelitian ini adalah untuk mengetahui indikasi perubahan garis pantai serta hubungan antara perubahan garis pantai dengan arus sejajar pantai di lokasi penelitian. Metode penelitian menggunakan metode deskriptif, untuk pengambilan sampel menggunakan metode purposive sampling, metode SMB untuk peramalan gelombang dan perhitungan menggunakan rumus empiris untuk validasi pasang surut, arus sejajar pantai dan parameter akresi-erosi. Hasil penelitian menunjukkan Perairan Muara Sungai Kaliboyo mengalami akresi, hal ini dapat diketahui dari nilai parameter akresi-erosi di tiga penampang. Penampang 1 dengan nilai Go sebesar 0,62, penampang 2 dengan nilai Go sebesar 0,39 dan penampang 3 dengan nilai Go sebesar 0,56. Nilai Go di atas 0,111 menunjukkan adanya akresi. Gelombang datang dari arah Timur Laut menuju Barat Daya menimbulkan gelombang pecah dengan tinggi 0,28 meter pada kedalaman 0,90 meter sehingga membentuk sudut gelombang pecah (αb) sebesar 9,51°. Gelombang pecah tersebut menimbulkan arus sejajar pantai dari Timur ke Barat dengan kecepatan 0,42 m/dt yang mengangkut sedimen sejajar pantai, sehingga membentuk spit di muara sungai dari arah Timur memanjang ke Barat. Kaliboyo River Estuary is a dynamic and rapidly changing area of the coastline and spits are formed at the river mouth. Sediment in this area often closes river mouths, disrupting the flow of fishermen's screens and clogging up river flow which sometimes causes floods around the river mouth. The purpose of this study is to find out indications of shoreline changes and the relationship between shoreline changes with longshore currents at the study site. The research method uses descriptive method, for sampling using purposive sampling method, SMB method for wave forecasting and calculations using empirical formulas. The research method uses descriptive method, for sampling using purposive sampling method, SMB method for wave forecasting and calculations using empirical formulas for tide validation, longshore currents and erosion-accretion parameters. The results showed that Kaliboyo River Estuary had accretion, this can be seen from the value of the erosion-accretion parameter in three cross sections. The first cross section with a Go value of 0,62, second cross section with a Go value of 0,39 and third cross section with a Go value of 0,56. Go values above 0,111 indicate accretion. Waves coming from the Northeast to the Southwest cause a breaking wave with a height of 0,28 meters at 0,90 meters depth to form an angle of breaking wave (αb) of 9.51°. The breaking wave caused a longshore current from East to West with a speed of 0,42 m /sec which transported sediment along the coast, thus forming a spit at the river mouth from the east extending to the west.

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Shallow-marine Sandstone Reservoirs, Depositional Environments, Stratigraphic Characteristics and Facies Model: A Review

Cited by 19 publications

References 47 publications

Mineralogical characteristics of the heterolithic formations from the Carpathian Foredeep Miocene sediments, south-eastern Poland

Mineralogical characteristics of the heterolithic formations from the Carpathian Foredeep Miocene sediments, south-eastern Poland

Characterization of Sandstone Reservoir at Bokor Formation, Kampot Province, Kampong Som Basin, Onshore Cambodia

Studi Perubahan Garis Pantai di Perairan Muara Sungai Kaliboyo, Batang

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