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Journal articles on the topic 'Limestone reservoir'

Author: Grafiati

Published: 9 November 2024

Last updated: 31 July 2025

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1

Samodra, S. B., S. S. Surjono, D. H. Amijaya, and W. Suryanto. "Evaluation of Reservoir Properties of Eemoiko Limestone in Menui Sub-Basin, South-East Arm Sulawesi, Indonesia." IOP Conference Series: Earth and Environmental Science 1517, no. 1 (2025): 012052. https://doi.org/10.1088/1755-1315/1517/1/012052.

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Abstract Eemoiko Limestone is one of potential reservoir rocks in Menui Sub-Basin. This study aimed to evaluate the quality reservoir and depositional environment of Eemoiko Limestone Formation. This study utilized field investigations and laboratory analyses such as petrographic analysis and seismic interpretation. A thorough examination of thin sections from the Eemoiko Limestone, exposed in Wasana and Wolasi area, provides insights into the textural and mineralogical attributes and the presence of skeletal fossils within the limestone. Based on the analysis of thin sections, the limestones

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2

Wang, D., M. Maubert, G. A. Pope, et al. "Reduction of Surfactant Retention in Limestones Using Sodium Hydroxide." SPE Journal 24, no. 01 (2018): 92–115. http://dx.doi.org/10.2118/194009-pa.

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Summary Geochemical modeling was used to design and conduct a series of alkaline/surfactant/polymer (ASP) coreflood experiments to measure the surfactant retention in limestone cores using sodium hydroxide (NaOH) as the alkali. Surfactant/polymer (SP) coreflood experiments were conducted under the same conditions for comparison. NaOH has been used for ASP floods of sandstones, but these are the first experiments to test it for ASP floods of limestones. Two studies performed under different reservoir conditions showed that NaOH significantly reduced the surfactant retention in Indiana Limestone

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Jiang, Qingchun, Weiming Wang, and Qixia Lyu. "Characteristics and Controlling Factors of Tight Marl Reservoirs with an Eyelid-Shaped Structure of the First Member of the Deep Maokou Formation in Eastern Sichuan." Energies 16, no. 5 (2023): 2353. http://dx.doi.org/10.3390/en16052353.

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Tight marl is a special type of unconventional oil and gas resource, and the study on its reservoir characteristics and controlling factors is of immense scientific significance. In this paper, 113 core samples of marl from Gouxi Area, Eastern Sichuan were selected. Based on organic carbon, pyrolysis, X-ray diffraction of whole rock, and X-ray diffraction of clay analysis, the reservoir evaluation of eyelid-shaped limestone in the first member of Maokou Formation was carried out. The results show that there are obvious differences between eyelid-shaped limestone reservoirs and eyeball-shaped l

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4

Gorter, J. D., and J. M. Davies. "UPPER PERMIAN CARBONATE RESERVOIRS OF THE NORTH WEST SHELF AND NORTHERN PERTH BASIN, AUSTRALIA." APPEA Journal 39, no. 1 (1999): 343. http://dx.doi.org/10.1071/aj98019.

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The Perth, Carnarvon, Browse, and Bonaparte basins contain Permian shallowmarine carbonates. Interbedded with clastic oil and gas reservoirs in the northern Perth Basin (Wagina Formation), and gas reservoirs in the Bonaparte Basin (Cape Hay and Tern formations), these carbonates also have the potential to contain significant hydrocarbon reservoirs. Limestone porosity may be related to the primary depositional fabric, or secondary processes such as dolomitisation, karstification, and fracturing. However, in the Upper Permian interval of the North West Shelf and northern Perth Basin, where there

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Permana, Aang Panji, and Sunarty Suly Eraku. "Kualitas Batugamping Gorontalo Sebagai Reservoir Air Tanah Berdasarkan Analisis Jenis Porositas." EnviroScienteae 16, no. 1 (2020): 1. http://dx.doi.org/10.20527/es.v16i1.8993.

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The potential of limestone in Gorontalo City is not only the use of industrial minerals but also its availability as a reservoir of groundwater reservoirs. The availability of groundwater is the main focus in preserving the environment. For this reason, this research focuses on the quality of limestone reservoirs by analyzing limestone porosity. The purpose of this study was to determine the average porosity percentage, porosity type and porosity quality both semi-quantitative and qualitative. In order to achieve these objectives, two methods are used namely the field survey method and petrogr

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Jiangmin, Du, Zhang Xiaoli, Yu Yanqiu, et al. "Lacustrine Carbonate Reservoir Characteristics Research of Jurassic Da’anzhai Member in North Central Sichuan Basin." Open Petroleum Engineering Journal 8, no. 1 (2015): 398–404. http://dx.doi.org/10.2174/1874834101508010398.

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Based on both macroscopic and microscopic characteristics of cores from Lower Jurassic Da’anzhai Member in north central Sichuan Basin, and combined with physical property data, a detail study has been conducted, which includes reservoir characteristics such as lithologic characters, physical properties, and reservoir space types, and control factors of reservoir development. The study suggests that, there are two typical kinds of reservoirs: crystalline shell limestone and argillaceous shell limestone. The reservoirs properties are poor with ultra-low porosity and low permeability, which can

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Xin, Yongguang, Wenzheng Li, Hao Zhang, Han Tian, Xiaodong Fu, and Zengye Xie. "Mechanisms by Which an Evaporated Lagoon Sedimentation System Controls Source–Reservoir Preservation in Lei32 Sub-Member Unconventional Oil and Gas." Energies 17, no. 4 (2024): 964. http://dx.doi.org/10.3390/en17040964.

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The muddy limestone in the Lei32 sub-member of the Middle Triassic Leikoupo Formation in the well Chongtan 1 (CT1) of the Sichuan Basin has yielded promising industrial oil and gas production. This discovery has the potential to become a significant strategic reservoir in the future for oil and gas exploration in the Sichuan Basin. However, the understanding of hydrocarbon accumulation in the muddy limestone of the Lei32 sub-member remains insufficient, which poses limitations on further exploration selection and deployment strategies. This study focuses on the analysis of core samples and lab

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Islam, Musfirat Najmun, Md Anwar Hossain Bhuiyan, Mohammad Solaiman, Md Sajjadul Islam Fahim, and Zohur Ahmed. "Evaluation of Reservoir Properties of Sylhet Limestone of Jaintia Group, North-Eastern Sylhet, Bangladesh." Dhaka University Journal of Earth and Environmental Sciences 12, no. 2 (2024): 119–37. http://dx.doi.org/10.3329/dujees.v12i2.73167.

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The Sylhet Limestone in the Bengal Basin, formed in the Eocene Epoch and known for its fossil content, is significant in understanding the reservoir characteristics. Despite exposure in Jaflong and Takerghat of the Bengal Basin, little research has been conducted on reservoir characteristics. This study aimed to comprehensively examine the Sylhet Limestone Formation, encompassing its crystalline upper and fossiliferous lower sections. It utilized field investigations and laboratory analyses to address the gaps of sporadic or insufficient earlier studies. A thorough examination of thin sections

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9

Widarsono, Bambang. "THE ROCK COMPRESSIBILITY CHARACTERISTICS OF SOME INDONESIAN RESERVOIR LIMESTONES." Scientific Contributions Oil and Gas 37, no. 1 (2022): 1–14. http://dx.doi.org/10.29017/scog.37.1.615.

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Rock compressibility is an important formation rock properties. It infl uences various processesin reservoir and rock formations that encompass from sources of reservoir driving energy, changes inother reservoir properties, to land subsidence. Various studies have been performed and published, butno comprehensive studies have ever been performed on Indonesian reservoir rocks. This article presentsresults of such studies on Indonesian limestones, reservoir rocks that have contributed much to Indonesia’snational oil and gas production for decades. The study was carried out in order to study the

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Atala, Samara, and Thamer Mahdi. "Reservoir Characteristics of Ratawi Formation in Southern Iraq." Iraqi Geological Journal 58, no. 1C (2025): 64–74. https://doi.org/10.46717/igj.58.1c.6ms-2025-3-21.

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The Lower Cretaceous Ratawi Formation in southern Iraq and throughout the Arabian Plate region comprises sandstone and limestone units with important hydrocarbon reservoir potential. Three wells in the Mesopotamian Basin in south Iraq have been selected to study the key differences in some petrophysical properties of sandstone, argillaceous sandstone, and limestone units. The Density, Neutron, and Gamma Ray logs are applied to identify the lithology of the Ratawi Formation. The Density-Neutron logs cross plot shows the association of sandstone, limestone, and shale lithologies. The presence of

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Siyar, S. M., M. Awais, M. Zafar, M. Waqas, and S. Faisal. "Reservoir characterization of Paleocene Clastics and Carbonates in Chanda-01 Well, Kohat Basin, Khyber Pakhtunkhwa, Pakistan: A Petrophysical Approach." Nucleus 55, no. 1 (2018): 27–32. https://doi.org/10.71330/thenucleus.2018.9.

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The present study deals with the reservoir characterization of Paleocene reservoirs in Chanda-01 well drilled in the Kohat Basin, Pakistan. The petrophysical evaluation of the Paleocene Hangu Formation (Clastics) and Lockhart Limestone (carbonates) have been carried out using conventional Petrophysical logs. The petrophysical parameters estimated includes volume of shale (Vsh), density porosity (?D), neutron porosity (?N), sonic porosity (?S), average porosity (?A), effective porosity (?E), qualitative permeability, water saturation (Sw) and hydrocarbon saturation (Shc). One possible pay zone

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12

Dunnington, H. V. "Generation, migration, accumulation, and dissipation of oil in Northern Iraq." GeoArabia 10, no. 2 (2005): 39–84. http://dx.doi.org/10.2113/geoarabia100239.

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ABSTRACT Most of the known oil accumulations of Northern Iraq probably originated by upward migration from earlier, deeper accumulations which were initially housed in stratigraphic or long-established structural traps, and which are now largely depleted. The earlier concentrations had their source in basinal sediments, into which the porous, primary-reservoir limestones pass at modest distances east of the present fields. Development of the region favored lateral migration from different basinal areas of Upper Jurassic and Lower-Middle Cretaceous time into different areas of primary accumulat

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Mahdi, Thamer. "Stratigraphic Reservoir Characterization of Ratawi Formation in Southern Iraq." Iraqi Geological Journal 57, no. 2D (2024): 65–77. http://dx.doi.org/10.46717/igj.57.2d.5ms-2024-10-15.

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The Early Cretaceous Ratawi Formation in the Arabian Plate consists of sandstone and carbonate reservoirs. In Iraq, the Ratawi Formation is productive in several oilfields of the Mesopotamian Basin in southern Iraq. Selected wells are studied by using well logs of the formation and using a sequence stratigraphic approach to predict the distribution of reservoirs in the Mesopotamian Basin. The combination use of Gamma-ray, Neutron, Density, and Sonic logs shows that the major lithologies of the Ratawi Formation are shale, limestone, and sandstone. The calculated effective porosity and volume of

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14

Taylor, Kevin C., Hisham A. Nasr-El-Din, and Sudhir Mehta. "Anomalous Acid Reaction Rates in Carbonate Reservoir Rocks." SPE Journal 11, no. 04 (2006): 488–96. http://dx.doi.org/10.2118/89417-pa.

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Summary It is generally assumed that the reaction of acid with limestone reservoir rock is much more rapid than acid reaction with dolomite reservoir rock. This work is the first to show this assumption to be false in some cases, because of mineral impurities commonly found in these rocks. Trace amounts of clay impurities in limestone reservoir rocks were found to reduce the acid dissolution rate by up to a factor of 25, to make the acid reactivity of these rocks similar to that of fully dolomitized rock. A rotating disk instrument was used to measure dissolution rates of reservoir rock from a

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15

Wang, Yang, Yu Fan, Song Li, Zefei Lv, Rui He, and Liang Wang. "A New Fracturing Method to Improve Stimulation Effect of Marl Tight Oil Reservoir in Sichuan Basin." Processes 11, no. 11 (2023): 3234. http://dx.doi.org/10.3390/pr11113234.

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China’s argillaceous limestone reservoir has a lot of oil and gas resources, and hydraulic fracturing of the argillaceous limestone reservoir faces many difficulties. The first problem is that the heterogeneity of the argillaceous limestone reservoir is strong, and it is difficult to optimize fracturing parameters. The second problem is that there are a lot of natural fractures in the argillaceous limestone reservoir, which leads to a lot of fracturing fluid loss. The third problem is that the closure pressure of the argillaceous limestone reservoir is high, and the conductivity of fractures d

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Kassab, Mohamed A., Ali El-Said Abbas, Mostafa A. Teama, and Musa A. S. Khalifa. "Prospect evaluation and hydrocarbon potential assessment: the Lower Eocene Facha non-clastic reservoirs, Hakim Oil Field (NC74A), Sirte basin, Libya—a case study." Journal of Petroleum Exploration and Production Technology 10, no. 2 (2019): 351–62. http://dx.doi.org/10.1007/s13202-019-00773-8.

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Abstract Petrophysical assessment of Facha Formation based on log data of six wells A1, A3, A4, A5, A8 and A13 recorded over the entire reservoir interval was established. Hakim Oil Field produces from the Lower Eocene Facha reservoir, which is located at the western side of Sirte basin. Limestone, dolostone and dolomitic limestone are the main lithologies of the Facha reservoir. This lithology is defined by neutron porosity—density cross-plot. Noteworthily, limestone increases in the lowermost intervals of the reservoir. Structurally, the field is traversed by three northwest–southeast faults

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17

Bi, Yuhang, Zhonggui Hu, Saijun Wu, Jiuzhen Hu, Weijie Tong, and Min Yao. "Distribution Pattern and Controlling Factors of Reef–Shoal Reservoirs on Both Sides of the Intra-Platform Depression in the Changxing Formation, Wolonghe-Yangduxi Area, Sichuan Basin." Applied Sciences 15, no. 4 (2025): 2128. https://doi.org/10.3390/app15042128.

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The development pattern of the high-quality reservoir in the Changxing Formation in the Wolonghe-Yangduxi area of southeastern Sichuan is complex. To clarify its evolution, genetic mechanisms, and distribution patterns, this study integrates data from profiles, cores, thin sections, and well logs. It reveals the distribution mechanisms of the bio-reef and shoal reservoirs in the Changxing Formation and discusses the controlling effects of tectonic, sedimentary, and diagenetic processes on reservoir development. The results show the following: (1) The Changxing Formation mainly develops open pl

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18

Hisyam, Febrina, Aang Panji Permana, and Ronal Hutagalung. "Analisis Porositas Batugamping Sebagai Reservoir Air Tanah Daerah Bintalahe, Kabupaten Bone Bolango, Provinsi Gorontalo." Journal of Applied Geoscience and Engineering 3, no. 2 (2024): 99–112. https://doi.org/10.37905/jage.v3i2.30311.

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Reservoir rocks are subsurface rocks that are porous and able to store and flow groundwater that can be utilized by the surrounding community. The rocks that function as groundwater reservoirs in the Bintalahe area are limestone. Almost the entire research area is composed of limestone so it is interesting to study. Gorontalo is located on the northern arm of Sulawesi which is bordered by two provinces and two seas, namely North Sulawesi Province in the east, Central Sulawesi Province in the west, Tomini Bay in the south and the Sulawesi Sea in the north. Gorontalo has interesting geological d

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Hafiz, Surya Darma, Ahmad Helman Hamdani, Budi Muljana, and Moeh Ali Jambak. "Effect of diagenetic events on limestone reservoir quality: Case study of Parigi formation, Northwest Java basin." BIO Web of Conferences 73 (2023): 04009. http://dx.doi.org/10.1051/bioconf/20237304009.

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Limestone is a sedimentary rock with high heterogeneity. This is triggered by diagenetic processes that affect the quality of limestone during its formation. The high uncertainty in limestone porosity values is also influenced by diagenetic processes. The Parigi Formation is a carbonate rock located in the Northwest Java Basin and has been proven to be a carbonate reservoir rock. Petrographic analysis was conducted to observe the appearance resulting from diagenetic processes. The studied area's limestone has two facies: clastic facies and reef facies. The limestone of clastic facies is white

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Ahmed, Zheno Kareem, and Halkawt Ismail Ismail M-Amin. "Analyzing of Drill Stem Test (DST) Result for Dual Porosity Limestone Reservoir." Kurdistan Journal of Applied Research 2, no. 3 (2017): 240–51. http://dx.doi.org/10.24017/science.2017.3.45.

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The aim of this paper is to discuss and evaluate the result of DST which was conducted in a limestone reservoir of an oil field at the depth interval 3764.29-3903.0 meter in well-1 to evaluate the dynamic characteristics of the reservoirs, for instance: skin effect, permeability, wellbore storage, reservoir boundary and average reservoir pressure. Reservoir Pressure profiles has been recorded for both Buildup and draw down intervals. Semi-log and log-log coordinates have been used to plot the pressure signature date of both buildup period and its derivative to improve diagnostic and Horner plo

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Khan, Nasar, Imran Ahmed, Muhammad Ishaq, et al. "Reservoir Potential Evaluation of the Middle Paleocene Lockhart Limestone of the Kohat Basin, Pakistan: Petrophysical Analyses." International Journal of Economic and Environmental Geology 11, no. 1 (2020): 1–9. http://dx.doi.org/10.46660/ijeeg.vol11.iss1.2020.404.

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The Lockhart Limestone is evaluated for its reservoir potential by utilizing wireline logs of Shakardara-01 well from Kohat Basin, Pakistan. The analyses showed 28.03% average volume of shale (Vsh), 25.57% average neutron porosity (NPHI), 3.31% average effective porosity (PHIE), 76% average water saturation (Sw), and 24.10% average hydrocarbon saturation (Sh) of the Lockhart Limestone in Shakardara-01 well. Based on variation in petrophysical character, the reservoir units of the Lockhart Limestone are divided into three zones i.e., zone-1, zone-2 and zone-3. Out of these zones, zone-1 and zon

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Khan, Nasar, Imran Ahmed, Muhammad Ishaq, et al. "Reservoir Potential Evaluation of the Middle Paleocene Lockhart Limestone of the Kohat Basin, Pakistan: Petrophysical Analyses." International Journal of Economic and Environmental Geology 11, no. 1 (2020): 1–9. http://dx.doi.org/10.46660/ojs.v11i1.404.

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The Lockhart Limestone is evaluated for its reservoir potential by utilizing wireline logs of Shakardara-01 well from Kohat Basin, Pakistan. The analyses showed 28.03% average volume of shale (Vsh), 25.57% average neutron porosity (NPHI), 3.31% average effective porosity (PHIE), 76% average water saturation (Sw), and 24.10% average hydrocarbon saturation (Sh) of the Lockhart Limestone in Shakardara-01 well. Based on variation in petrophysical character, the reservoir units of the Lockhart Limestone are divided into three zones i.e., zone-1, zone-2 and zone-3. Out of these zones, zone-1 and zon

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Khan, Nasar, Imran Ahmad, Muhammad Ishaq, et al. "Reservoir Potential Evaluation of the Middle Paleocene Lockhart Limestone of the Kohat Basin, Pakistan: Petrophysical Analyses." International Journal of Economic and Environmental Geology 11, no. 01 (2024): 1–9. http://dx.doi.org/10.46660/ijeeg.v11i01.212.

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The Lockhart Limestone is evaluated for its reservoir potential by utilizing wireline logs of Shakardara-01well from Kohat Basin, Pakistan. The analyses showed 28.03% average volume of shale (Vsh), 25.57% average neutron porosity (NPHI), 3.31% average effective porosity (PHIE), 76% average water saturation (Sw), and 24.10% average hydrocarbon saturation (Sh) of the Lockhart Limestone in Shakardara-01 well. Based on variation in petrophysical character, the reservoir units of the Lockhart Limestone are divided into three zones i.e., zone-1, zone-2 and zone-3. Out of these zones, zone-1 and zone

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Vukadin, Domagoj, Jasna Orešković, and Csaba Kutasi. "Elastic Properties of Pannonian Basin Limestone under Different Saturation Conditions." Energies 14, no. 21 (2021): 7291. http://dx.doi.org/10.3390/en14217291.

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Understanding elastic properties of reservoir rocks is essential for seismic modeling under different saturation conditions as well as lithology discrimination. Experiments on elastic properties of limestones are significantly less published compared to siliciclastic sedimentary rocks. The current study presents the results of laboratory measurements on Pannonian Basin limestone cores. The research was carried out for the first time for a hydrocarbon reservoir in the Bjelovar Depression, located in the southern part of the Pannonian Basin. Ultrasonic velocity measurements and determination of

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Cantrell, Dave L., and Royal M. Hagerty. "Reservoir rock classification, Arab-D reservoir, Ghawar field, Saudi Arabia." GeoArabia 8, no. 3 (2003): 435–62. http://dx.doi.org/10.2113/geoarabia0803435.

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ABSTRACT An integrated petrographic and petrophysical study of Arab-D carbonates in Ghawar field has provided a new reservoir rock classification. This classification provides a simple but practical method of dividing the complex carbonate rocks of the Arab-D into meaningful reservoir rock types. Each rock type has a distinct pore network as defined by porosity-permeability relationships and capillarity expressed as pore-size distributions and J-function curves. The classification divides the Arab-D carbonates into seven limestone and four dolomite rock types. The amount of matrix (lime mud) a

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S, Rini Rahmatia, Aang Panji Permana, and Ronal Hutagalung. "POTENSI BATUGAMPING TERUMBU GORONTALO SEBAGAI BAHAN GALIAN INDUSTRI BERDASARKAN ANALISIS GEOKIMIA XRF." EnviroScienteae 19, no. 2 (2023): 16. http://dx.doi.org/10.20527/es.v19i2.5469.

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Reservoir rocks are hollow rocks below the surface that are capable of storing and flowing groundwater that can be utilized by the community. The limestone facies is a good reservoir rock. The characteristics of the limestone facies in the Ombulo Region, Gorontalo Regency, which reach 3.42 km2, are very interesting to study. This study aims to analyze the porosity value of each limestone facies in the study area. The research method used consisted of field geological surveys and petrographic laboratory analysis. The results showed that the study area consisted of four limestone facies namely f

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Rahman, Arief, and Rani Rahmawati. "Uji Laboratorium Sampel Core Plug untuk Menentukan Porositas, Permeabilitas dan Saturasi Minyak pada Reservoir Batugamping." Jurnal Indonesia Sosial Teknologi 3, no. 07 (2022): 840–54. http://dx.doi.org/10.36418/jist.v3i7.466.

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Porosity, permeability, and fluid saturation (gas, oil, water) are three important physical properties of rocks, especially in oil and gas reservoirs (oil and gas) which are carried out in core rock analysis. The purpose of this study is to determine the relationship between porosity, permeability, and oil saturation in limestone (limestone) from a horizontal plug core sample to a vertical core plug sample, to be associated with its distribution vertically and horizontally (laterally). The research method used is a Lab Test conducted at the Routine Core Analysis (RCAL) Laboratory at PPTMBG "Le

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Ali, Alyaa M., and Ayad A. Alhaleem. "Determination of Reservoir Hydraulic Flow Units and Permeability Estimation Using Flow Zone Indicator Method." Iraqi Journal of Chemical and Petroleum Engineering 24, no. 2 (2023): 89–95. http://dx.doi.org/10.31699/ijcpe.2023.2.10.

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Reservoir characterization plays a crucial role in comprehending the distribution of formation properties and fluids within heterogeneous reservoirs. This knowledge is instrumental in constructing an accurate three-dimensional model of the reservoir, facilitating predictions regarding porosity, permeability, and fluid flow distribution. Among the various methods employed for reservoir characterization, the hydraulic flow unit stands out as a widely adopted approach. By effectively subdividing the reservoir into distinct zones, each characterized by unique petrophysical and geological propertie

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Chopping, Curtis, and John P. Kaszuba. "Reactivity of supercritical sulfur dioxide and carbon dioxide in a carbonate reservoir: An experimental investigation of supercritical fluid-brine-rock interactions relevant to the Madison Limestone of Southwest Wyoming." Interpretation 5, no. 4 (2017): SS43—SS58. http://dx.doi.org/10.1190/int-2017-0025.1.

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Managing impure carbon dioxide produced by fossil fuel-based generation of electricity is required for successful implementation of carbon capture, utilization, and storage. Impurities in carbon dioxide, particularly [Formula: see text] and [Formula: see text], are geochemically more reactive than the carbon dioxide and may adversely impact a carbon dioxide storage reservoir by generating additional acidity. Hydrothermal experiments are performed to evaluate geochemical and mineralogic effects of injecting [Formula: see text]-[Formula: see text] fluid into a carbonate reservoir. The experiment

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You, Donghua, Jun Han, Wenxuan Hu, et al. "Characteristics and formation mechanisms of silicified carbonate reservoirs in well SN4 of the Tarim Basin." Energy Exploration & Exploitation 36, no. 4 (2018): 820–49. http://dx.doi.org/10.1177/0144598718757515.

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High-yield natural gas was discovered in well SN4 in the Ordovician Yingshan Formation in the Tarim Basin. The gas is found in unusual, silicified, carbonate reservoirs. According to the degree of silicification, the silicified reservoirs can be divided into a lower section of silicified carbonates, a middle section of limestone, and an upper section of silicified carbonates. The silicified carbonates are mainly composed of quartz and calcite, in which the reservoir space mostly occurs as vugs, inter-crystalline pores of quartz, and partial fractures. Porosity varies widely, ranging from 3 to

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Selema, S. B., R. U. Ideozu, and E. J. Acra. "MID CRETACEOUS SUBSURFACE CARBONATE DEPOSIT AND RESERVOIR DEVELOPMENT OF THE MFAMOSING LIMESTONE CALABAR FLANK." International Journal of Research -GRANTHAALAYAH 11, no. 5 (2023): 112–28. http://dx.doi.org/10.29121/granthaalayah.v11.i5.2023.5175.

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This research analyzed the reservoir quality of the Mfamosing Limestone with a view to classifying it as a potential reservoir rock within the Calabar Flank. Materials used in this research are processed seismic data acquired around the Calabar flank and well logs of three wells (A, B, C) drilled at different periods within the study area, core as well as mud log data. The procedure used involved prospect identification and mapping, structural and stratigraphic analysis, reservoir quality and classification of the carbonate rock in the study area. The results were analyzed and classified the M

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Anggraeni, Septi, Junita Trivianty, and Bambang Widarsono. "A LABORATORY STUDY TO IMPROVE ACID STIMULATION IN SANDSTONES." Scientific Contributions Oil and Gas 29, no. 3 (2022): 25–33. http://dx.doi.org/10.29017/scog.29.3.1029.

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The main purpose of acidizing is to improve well productivity. Acids are useful for this reason because of their ability to dissolve undesired formation minerals and materials which may either be intrinsic in nature or be introduced into the formation during the processes of drilling, completion, and production. The effectiveness of acids in improving productivity in a particular well essentially depends on an accurate analysis of the problem and the selection of acid.Prudent judgment in acid to be used should be confirmed by laboratory tests. Apart from the analysis on the nature of the forma

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Azizi, Azlinda, Hazlina Husin, Nurul Aimi Ghazali, et al. "Nanoparticles Stabilized Carbon Dioxide Foams in Sandstone and Limestone Reservoir." Advanced Materials Research 1119 (July 2015): 170–74. http://dx.doi.org/10.4028/www.scientific.net/amr.1119.170.

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The use of nanoparticles with carbon dioxide foams has been proposed for enhanced oil recovery due to their robust chemical stability in harsh environment. The experimental study was performed by using nanoparticles stabilized carbon dioxide foams to study their recovery of residual oil by varying the carbon dioxide flow rates on different core samples such as sandstone and limestone. Experimental setup was divided into two different kinds of experiments which are the injection of carbon dioxide foams and the injection of nanoparticles assisted carbon dioxide foams in both sandstone and limest

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Zhou, Guangzhao, Zanquan Guo, Dongjun Wu, et al. "Multi-Porous Medium Characterization Reveals Tight Oil Potential in the Shell Limestone Reservoir of the Sichuan Basin." Processes 12, no. 6 (2024): 1057. http://dx.doi.org/10.3390/pr12061057.

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With the continuous deepening of oil and gas exploration and development, unconventional oil and gas resources, represented by tight oil, have become research hotspots. However, few studies have investigated tight oil potential in any systematic way in the shell limestone reservoir of the Sichuan Basin. Herein, we used thin section analysis, X-ray diffraction (XRD), high-pressure mercury intrusion, low-pressure N2 and CO2 adsorption experiments, low-field nuclear magnetic resonance (NMR), focused ion beam–scanning electron microscopy (FIB-SEM), and nano-CT to characterize multi-porous media. T

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Shwani, Ayub Mohammed Ahmed, Jayran K. Qadir, Shukur A. Rahman, Ali S. Alsaqi Alsaqi, and Amel K. Nooralddin. "Effect of the Deep Marin Balambo Formation on the Qamchuqa Reservoirs in Jambur Field." Journal of Petroleum Research and Studies 14, no. 2 (2024): 1–16. http://dx.doi.org/10.52716/jprs.v14i2.857.

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A shallow-marine carbonate known as Qamchuqa Formation was originally discovered in northern Iraq's Qamchuqa Gorge at an outcrop section. For the present study the available conventional well logs include gamma ray, porosity logs (density, and neutron) with the resistivity logs used to achieve the depositional environment of the studied area in selected wells Ja-21, Ja-32, Ja-41, Ja-46, and Ja-18. The Aptian-Albian age include lower and upper Qamchuqa formations, respectively are considered a major reservoir in Jambur Oil field; therefore, the present study focused only on lower and upper Qamc

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González-Gómez, Mailen, Héctor Galvis-Macareo, Mario García-González, and Juan Carlos Ramírez-Arias. "Organic geochemistry, lithofacies and gas shale reservoir potential of cretaceous outcrops from Alto de los Caballeros section, Eastern Cordillera Basin – Colombia." Boletín de Geología 44, no. 2 (2022): 95–108. http://dx.doi.org/10.18273/revbol.v44n2-2022004.

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Significant layers of shale are exposed in the Eastern Cordillera of Colombia. These Upper Cretaceous rocks from La Frontera and Conejo Formations in the Chécua-Lenguazaque Syncline, between Ubaté, Carmen de Carupa and Sutatausa towns, were evaluated using geochemical and petrographic analysis to determine their potential as gas shale reservoirs. This structure presents promising characteristics for developing a gas shale reservoir due to its areal extension, the existence of a thick layer of marine cretaceous sequence, and a near location to industrial areas, such as the colombian andean regi

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Troup, Alison, and Behnam Talebi. "Adavale Basin petroleum plays." APPEA Journal 59, no. 2 (2019): 958. http://dx.doi.org/10.1071/aj18083.

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The Devonian Adavale Basin system is an under-explored, frontier petroleum basin in south-west Queensland. It has a confirmed petroleum system with production from the Gilmore gas field. The age, marine depositional environments and high carbonate content suggest the basin may have unconventional petroleum potential, and there has been renewed interest from industry in evaluating the basin. In support of this, the Queensland Department of Natural Resources, Mines and Energy has examined the source rock properties of the Bury Limestone and Log Creek Formation and has commissioned an update to t

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Zhang, Daofeng, Yan Liu, Guodong Dong, Baoxian Liu, Cheng Li, and Xu Zeng. "Study on the Pore Structure Characterization of the Limestone Reservoir of the Taiyuan Formation in the Ordos Basin." Energies 17, no. 13 (2024): 3275. http://dx.doi.org/10.3390/en17133275.

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In this paper, the limestone reservoir of the Upper Permian Taiyuan Formation in the Ordos Basin is taken as the research object. Through various analysis and testing methods, the characterization and classification evaluation of pore structure were carried out. The core porosity and pore structure characteristics were analyzed using nuclear magnetic resonance, gas measurement, and CT scanning. Based on the characteristics of the limestone reservoir, the optimal parameters of NMR testing were calibrated, the NMR testing method of limestone reservoir properties was established, and the NMR poro

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Zeb, Razib Asim, Muhammad Haziq Khan, Waqas Naseem, Muhammad Awais, Hamza Zaheen, and Ahtisham Khalid. "Reservoir Characterization of Eocene Carbonates of Central Indus Basin, Pakistan." Indonesian Journal of Earth Sciences 2, no. 1 (2022): 64–77. http://dx.doi.org/10.52562/injoes.v2i1.359.

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The present study is based on petrophysical analysis of the Eocene Sui Main Limestone (SML) penetrated in wells of Qadirpur Gas Field, Central Indus Basin, Pakistan. The analyzed petrophysical property of SML includes shale volume, total porosity, effective porosity, water saturation, hydrocarbon saturation and net pay thickness. The result from the study shows that the Sui Main Limestone reservoir is capable of yielding appreciable hydrocarbon. The petrophysical interpretation revealed that the studied SML has productive reservoir characteristics with average (total and effective) porosity is

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Kandula, Neelima, Jessica McBeck, Benoît Cordonnier, Jérôme Weiss, Dag Kristian Dysthe, and François Renard. "Synchrotron 4D X-Ray Imaging Reveals Strain Localization at the Onset of System-Size Failure in Porous Reservoir Rocks." Pure and Applied Geophysics 179, no. 1 (2021): 325–50. http://dx.doi.org/10.1007/s00024-021-02902-z.

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AbstractUnderstanding the mechanisms of strain localization leading to brittle failure in reservoir rocks can shed light on geomechanical processes such as porosity and permeability evolution during rock deformation, induced seismicity, fracturing, and subsidence in geological reservoirs. We perform triaxial compression tests on three types of porous reservoir rocks to reveal the local deformation mechanisms that control system-size failure. We deformed cylindrical samples of Adamswiller sandstone (23% porosity), Bentheim sandstone (23% porosity), and Anstrude limestone (20% porosity), using a

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Prahastomi, Mochammad, Achmad Fahruddin, Lauti D.Santy, and Ryandi Adlan. "Depositional Facies Model and Reservoir Quality of Paleogene Limestone in Labengki Island, Southeast Sulawesi." Jurnal Geologi dan Sumberdaya Mineral 23, no. 3 (2022): 189–96. http://dx.doi.org/10.33332/jgsm.geologi.v23i3.507.

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Eastern Indonesia has become an attractive venture for hydrocarbon exploration since 10 years ago. The discovery of hydrocarbon from Miocene carbonate of Tondo Formation has opened a new opportunity and hopes in the Southeast Sulawesi region. Can we find other potential reservoirs in Southeast Sulawesi? In this study, we assess and reconstruct the depositional model and the reservoir quality of the Paleogene Tampakura Formation in Labengki Island, Southeast Sulawesi. This field observation and petrographical study revealed that: (1) Tampakura Formation comprises mainly of grainstone, boundston

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Rahman, Arief, and Rani Rahmawati. "Pengaruh Chalky pada Porositas dan Permeabilitas Reservoir Batugamping Berdasarkan Uji Laboratorium Sampel Core, dari Lapangan “AR”." Jurnal Indonesia Sosial Teknologi 2, no. 6 (2021): 916–28. http://dx.doi.org/10.36418/jist.v2i6.175.

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Porositas batuan reservoir menentukan jumlah volume cadangan migas, sedangkan permeabilitas sangat penting untuk radius pengurasan migas dan recovery factor (RF). Tujuan dari penelitian yaitu mengetahui efek kedalaman terhadap porositas batugamping (limestone), hubungan porositas dan permeabilitas, dan mengetahui efek/pengaruh adanya chalk pada sampel core plug batugamping terhadap nilai porositas dan permeabilitas. Metode penelitian yang digunakan adalah Uji Lab yang dilakukan di Laborarotium Routine Core Analysis (RCAL) di PPPTMBG “Lemigas” Jakarta. Bahan yang digunakan adalah 21 (duapuluh s

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Setyawan, R., W. B. Khorniawan, Y. Krisnanda, and R. F. Rianawati. "Analysis of Reservoir Characteristics of Ngrayong Formation, Sendangharjo Village, Blora District, Blora Regency, Central Java Province." IOP Conference Series: Earth and Environmental Science 1517, no. 1 (2025): 012051. https://doi.org/10.1088/1755-1315/1517/1/012051.

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Abstract Reservoir characteristic analysis through surface data can help in describing subsurface characteristics. Ngrayong Formation is one of the target reservoirs because of its characteristic rocks that have good porosity. Reservoir characterization through surface data can use two parameters, namely outcrop geometry (reservoir thickness) and porosity that can be observed in thin sections. This study aims to determine the characteristics of lithology, outcrop geometry, porosity, and their relationship to depositional facies. The research location is located in Sendangharjo Village, Blora D

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Baouche, Rafik, Souvik Sen, Shib Sankar Ganguli, and Khadidja Boutaleb. "Petrophysical and geomechanical characterization of the Late Cretaceous limestone reservoirs from the Southeastern Constantine Basin, Algeria." Interpretation 9, no. 4 (2021): SH1—SH9. http://dx.doi.org/10.1190/int-2020-0249.1.

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We have characterized the petrophysical and geomechanical properties of the Late Cretaceous Turonian and Cenomanian carbonate reservoirs from the southeast Constantine Basin, northern Algeria. In general, Turonian carbonates exhibit a wide range of porosities (2%–15%) and permeabilities (0.001–10 mD), whereas the Cenomanian reservoir appears to be very tight (<6% porosity and <0.1 mD permeability). Based on their storage and hydraulic flow characteristics, these carbonates were classified into two distinct reservoir rock types (RRT): RRT-I is hosted by nano- to microporosities that displ

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Alshammary, Zahraa, Amer Al-Khafaji, and Fahad Al-Najm. "Characterization of the Yamama Reservoir in the Abu-Amood Oil Field, Nasiriya, Southern Iraq." Iraqi Geological Journal 57, no. 1C (2024): 14–28. http://dx.doi.org/10.46717/igj.57.1c.2ms-2024-3-14.

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The Abu-Amood (Rafidain) Oilfield considered as one among five main fields of Nasiriya, with multiple oil reservoir units: Mishrif, Mauddud, Zubair, Nahr Umr, Ratawi, and Yamama formations. The current study highlights the findings of identifying and analyzing the petrophysical characterization of the carbonate Yamama reservoir units in the studied oil field in southern Iraq, in order to understand their influence on the reservoir hydrocarbon potential production of the field. A set of wirelines well logs for five wells was investigated for reservoir evaluation and reservoir unit characterizat

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Ghafur, Ala A., and Dana A. Hasan. "Petrophysical Properties of the Upper Qamchuqa Carbonate Reservoir through Well Log Evaluation in the Khabbaz Oilfield." UKH Journal of Science and Engineering 1, no. 1 (2017): 72–88. http://dx.doi.org/10.25079/ukhjse.v1n1y2017.pp72-88.

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Khabbaz oilfield has a symmetrical subsurface anticline with a length of 20 km and a width of 4 km. Despite the fact that Khabbaz oilfield has a small size structure, it is known as one of the massive Oilfields in Iraq. The reservoirs of Khabbaz oilfield are produced by both Cretaceous and Tertiary rocks. The Upper Qamchuqa reservoir is the most productive reservoir of the Khabbaz oilfield with thickness ranges between 138 to 170 m. This formation is subdivided into two units, from the top is Unit A with a thickness of 67 m and from the bottom is Unit B with a thickness of 84.5 m. From a full

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Rashid, Muhammad, Miao Luo, Umar Ashraf, et al. "Reservoir Quality Prediction of Gas-Bearing Carbonate Sediments in the Qadirpur Field: Insights from Advanced Machine Learning Approaches of SOM and Cluster Analysis." Minerals 13, no. 1 (2022): 29. http://dx.doi.org/10.3390/min13010029.

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The detailed reservoir characterization was examined for the Central Indus Basin (CIB), Pakistan, across Qadirpur Field Eocene rock units. Various petrophysical parameters were analyzed with the integration of various cross-plots, complex water saturation, shale volume, effective porosity, total porosity, hydrocarbon saturation, neutron porosity and sonic concepts, gas effects, and lithology. In total, 8–14% of high effective porosity and 45–62% of hydrocarbon saturation are superbly found in the reservoirs of the Eocene. The Sui Upper Limestone is one of the poorest reservoirs among all these

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Sabry, Marwan M., Mohamed I. Abdel-Fattah, and MohamedMohamed K. El-Shafie. "Rock Typing and Characterization of the Late Cretaceous Abu Roash "G" Reservoirs at East Alam El-Shawish Field, Western Desert, Egypt." International Journal of Petroleum Technology 10 (November 1, 2023): 115–34. http://dx.doi.org/10.15377/2409-787x.2023.10.9.

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Rock typing and petrophysical characterization play a vital role in constructing reservoir models for petroleum exploration and development. This study focuses on evaluating the petrophysical characteristics of the Late Cretaceous Abu Roash "G" Reservoirs at the East Alam El Shawish field in Egypt's Western Desert. The study involved five vertical wells and employed various techniques and analyses to investigate the reservoir. Lithology determination utilizing well logs and core analysis helps identify the lithology types and corresponding porosity of the Abu Roash "G" reservoirs. Sandstone an

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Alemi, Dr Mehrdad, and Hossein Jalalifar. "Advanced Concepts in Naturally Fractured Reservoirs with Analysis of Field Data." Indian Journal of Petroleum Engineering 2, no. 1 (2022): 1–5. http://dx.doi.org/10.54105/ijpe.b1912.052122.

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Dual porosity reservoir is mainly defined as fractured reservoir. The Two porosities are included for fracture and matrix, Flow in the fractures, oil storage in the matrix. Dual Permeability reservoir are those pay zones with flow in both the fracture and matrix systems. Single porosity means matrix, dual porosity means both matrix and fractures and triple porosity means matrix, fractures and vugs. The description of displacement mechanisms in fractured reservoirs can be construed as: oil expansion, gravity forces, capillary forces, balance of gravity and capillary forces, diffusion and convec

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Dr., Mehrdad Alemi. "Advanced Concepts in Naturally Fractured Reservoirs with Analysis of Field Data." Indian J ournal of Petroleum Engineering (IJPE) 2, no. 1 (2022): 1–5. https://doi.org/10.54105/ijpe.B1912.052122.

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<strong>Abstract:</strong> Dual porosity reservoir is mainly defined as fractured reservoir. The Two porosities are included for fracture and matrix, Flow in the fractures, oil storage in the matrix. Dual Permeability reservoir are those pay zones with flow in both the fracture and matrix systems. Single porosity means matrix, dual porosity means both matrix and fractures and triple porosity means matrix, fractures and vugs. The description of displacement mechanisms in fractured reservoirs can be construed as: oil expansion, gravity forces, capillary forces, balance of gravity and capillary f

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