Article
Geosciences, Multidisciplinary
Dennis Quandt, Benjamin Busch Christina Schmidt, Christina Schmidt
Summary: The study on the Buntsandstein sandstones in Germany reveals that the reservoir system is heterogeneous and influenced by various factors, with grain size and quartz content as the key controls on reservoir quality.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Energy & Fuels
Jinxiu Yang, Ning Qi, Shuangfang Lu, Min Wang, Mingyue Lu, Ying Xia
Summary: The Lower Cretaceous sandstone reservoirs in the northern Wuerxun Sag contain abundant hydrocarbon resources and natural CO2 gas, but exhibit variable reservoir quality due to rapidly changing sedimentary facies and complex fault systems. The reservoirs are mainly composed of common sandstones and dawsonite-bearing sandstones, with poor sorting and low to moderate porosity and permeability. Dawsonite cements contribute to local heterogeneity and the presence of natural CO2 gas in the Surennuoer strike-slip fault zone.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Qamar U. Z. Zaman Dar, Renhai Pu, Christopher Baiyegunhi, Ghulam Shabeer, Rana Imran Ali, Umar Ashraf, Zulqarnain Sajid, Mubashir Mehmood
Summary: The study investigates the diagenetic impacts on reservoir properties of sandstones in the Early Cretaceous Lower Goru Formation in the Lower Indus Basin of Pakistan. The results reveal that chlorite is the dominant diagenetic constituent affecting the porosity of the sandstones. Different diagenetic events like compaction, cementation, dissolution, and mineral replacement have significantly altered the original rock properties and reservoir characteristics of the sandstones.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Sunday E. Okunuwadje, Ovie B. Ogbe, Ovie Odokuma-Alonge
Summary: This study evaluates the impact of the reservoir charge history on the diagenesis and reservoir quality of sandstones in the Dunlin Field. The study identifies different reservoir sandstone facies controlled by their depositional parameters and shows that oil charging was progressive rather than instantaneous. The study highlights the importance of evaluating depositional and diagenetic controls on reservoir quality for optimum oil production in clastic depositional settings.
GEOLOGICAL JOURNAL
(2023)
Article
Energy & Fuels
Sherif Farouk, Souvik Sen, John D. Pigott, Mohammad Abdelfattah Sarhan
Summary: This study evaluated the petrographical and petrophysical characteristics of the Rahmi sandstone gas reservoir in the southern Gulf of Suez. The study found differences in porosity and water saturation between the East Matr and Amal fields, with the Rahmi sandstone depositing in a high energy shoreface environment in close proximity to the hinterland.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Geosciences, Multidisciplinary
Jian Li, Xiang Zhang, Jingchun Tian, Qingshao Liang, Tongsheng Cao
Summary: The research examines the impact of deposition and diagenesis on sandstone reservoir quality, highlighting how depositional factors can influence the reservoir quality by affecting diagenesis. It emphasizes the importance of grain size, sorting, and sedimentary thickness in controlling sandstone reservoir quality.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Engineering, Multidisciplinary
Ya Yang
Summary: This paper investigates the sandstone reservoir characteristics of the red beds in the southeast of Jiyang Sag, analyzing the influence of sedimentary environment and diagenesis on its reservoir properties. The study reveals that the red bed sandstone predominantly consists of arkose, quartz-feldspar, and feldspar-quartz graywackes, exhibiting good porosity and permeability. Three types of reservoir sand bodies are found in the study area, with fan delta deposits showing better storage performance.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Jing Wang, Fawang Ye, Chuan Zhang, Zhaodong Xi, Carlos Sierra Fernandez
Summary: This study comprehensively examines the sedimentary environment, distribution of sand bodies, and physical characteristics of tight sandstone reservoirs in the Carboniferous-Permian coal-bearing sedimentary succession in the eastern edge of the Ordos Basin. The results indicate that the reservoir quality is relatively poor, primarily due to compaction and cementation reducing porosity. Dissolution has a limited effect on porosity but contributes to the tight nature of the reservoirs.
Article
Energy & Fuels
Zhenghong Yu, Si Chen, Weidong Xie, Shu'e Zhao, Jianghao Ma, Tianhao Gong
Summary: This study identifies five types of sedimentary microfacies and analyzes the major diagenetic processes in sandstones through core observation and logging data. The results show that grain size is the primary controlling factor for reservoir quality, and it is influenced by sedimentary microfacies and diagenetic processes, which collectively affect the porosity and permeability of the reservoir.
Article
Energy & Fuels
Peng Yang, Likuan Zhang, Keyu Liu, Binfeng Cao, Jianlei Gao, Guiqiang Qiu
Summary: The second member of the Upper Triassic Xujiahe Formation in the western Sichuan Basin is targeted for tight gas exploration, with poor reservoir properties characterized by low porosity and permeability. The diagenetic evolution includes mechanical and chemical compaction, quartz overgrowths, cementation, dissolution of feldspar, and precipitation of various minerals. Sandstone lithofacies are defined based on texture, composition, diagenetic minerals, and pore types, with lithofacies I showing the best reservoir properties and potential as high-quality reservoir facies in tight sandstone reservoirs.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Geology
Hao Wu, Youliang Ji, Zhiwei Du, Yong Zhou, Juan Zou, Yunzhao Zhang, Wei Du, Haiqing Liu
Summary: This study investigates the evolution and controls of reservoir quality in the Oligocene sandstones in the Nanpu Sag, Bohai Bay Basin, China. The sandstones exhibit highly variable reservoir quality with the formation of three anomalously high porosity/permeability zones. Factors such as petroleum emplacement and particle types influence the pore types and permeability.
SEDIMENTARY GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Alexander C. Monsees, Benjamin Busch, Christoph Hilgers
Summary: This study examines the diagenetic impact on reservoir quality and permeability heterogeneity of sandstones in different areas, finding that different authigenic phases and processes lead to significant variation in reservoir quality. The composition and distribution of authigenic minerals and coatings play a crucial role in determining the porosity and permeability of the sandstones. The results highlight the importance of distinguishing between different types of grain coatings and their effects on chemical compaction and quartz cementation, providing insights for reservoir quality assessment in hydrocarbon and geothermal plays.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2021)
Article
Engineering, Chemical
Pengbao Zhang, Shuheng Tang, Donglin Lin, Yanjun Chen, Xiaoxuan Wang, Zhenxing Liu, Feng Han, Peng Lv, Zhoupeng Yang, Xiaoqu Guan, Jiahua Hu, Yan Gao
Summary: This study analyzed the petrological and reservoir characteristics of the sandstone reservoirs in the He8 member of the Lower Permian Shihezi Formation in the southern Ningwu Basin. The impact of mineral composition and diagenesis type on reservoir porosity was evaluated, and a multiple linear regression prediction model was developed to predict the distribution of promising sandstone reservoirs in the study area.
Article
Geosciences, Multidisciplinary
Kai Liu, Ren Wang, Wanzhong Shi, Anna Trave, Juan Diego Martin-Martin, Vinyet Baques, Rong Qi, Jianwei Lin, Hui Ye
Summary: This study investigates the diagenetic evolution and its impact on reservoir quality and heterogeneity of the Upper Triassic Chang 8 sandstone reservoir in the south-western Ordos Basin. The results show that the reservoir quality is relatively poor due to compaction and carbonate and chlorite cementation. Sandstones with high porosity and permeability can be considered as favorable reservoirs for tight oil exploration.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Yong-Bin Niu, Meng-Yuan Cheng, Li-Jun Zhang, Jian-Hua Zhong, Sheng-Xin Liu, Duan Wei, Zi-Lu Xu, Pei-Jun Wang
Summary: Bioturbation plays a significant role in enhancing the reservoir capacity of tight reservoirs. This study examined the petrophysical characteristics of bioturbation and host sediments in carbonate rocks and analyzed their effects on the properties of the rocks. The results show that multiple burrows created by bioturbation formed large-scale bioturbated carbonate rocks with lateral continuity and vertical connectivity, which were further improved by diagenesis.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2022)
Article
Geosciences, Multidisciplinary
Mohammed Hail Hakimi, Abdulwahab S. Alaug, Abdulghani F. Ahmed, Madyan M. A. Yahya
JOURNAL OF AFRICAN EARTH SCIENCES
(2019)
Article
Energy & Fuels
Mohammed Hail Hakimi, Abdulwahab S. Alaug, Gamal A. Alramisy, Abdulghani F. Ahmed
PETROLEUM SCIENCE AND TECHNOLOGY
(2019)
Article
Energy & Fuels
Mohammed Hail Hakimi, Abdulwahab S. Alaug, Ibrahim M. J. Mohialdeen, Ali Y. Kahal, Hesham Abdulelah, Yousif Taha Hadad, Madyan M. A. Yahya
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2019)
Article
Geosciences, Multidisciplinary
Mohammed Hail Hakimi, Abdulwahab S. Alaug, Aref A. Lashin, Ibrahim M. J. Mohialdeen, Madyan M. A. Yahya, Mostafa M. Kinawy
MARINE AND PETROLEUM GEOLOGY
(2019)
Article
Energy & Fuels
Mohammed Hail Hakimi, Wan Hasiah Abdullah, Osman S. Hersi, Aref A. Lashin, Mohamed M. El Alfy, Yousif M. Makeen, Mostafa M. Kinawy, Baleid A. Hatem
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Energy & Fuels
Mohamed Ragab Shalaby
Summary: The reservoir characteristics and hydraulic flow unit properties of the Khatatba Formation in Qasr field, Western Desert, Egypt were investigated using various methods to analyze and characterize the sandstone. Samples from three different wells showed that the sandstone can be classified into three rock types, where Rock type I has the best storage capacity and permeability, while Rock type III is the poorest quality reservoir.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Liyana Nadiah Osli, Mohamed R. Shalaby, Md Aminul Islam, Stavros Kalaitzidis, Maria Elli Damoulianou, Khairunnisa Nazirah Pg Dr Karim, Basilios Tsikouras, Nikos Pasadakis
Summary: The characteristics of the source rocks in the early to late Miocene Belait Formation of Brunei Darussalam were evaluated utilizing Rock-Eval, biomarker analyses, and organic petrography. The results showed that coal and some carbonaceous samples from the formation have good generating potential, while non-coal samples generally have lower potential. The facies analysis suggested a mangrove setting in a lower delta plain for the deposition of coals, with mostly herbaceous and arboreal plants growing, under predominantly oxic and brackish conditions.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Mohamed Ragab Shalaby, Nicolaj Mahlstedt, Liyana Nadiah Osli, Md Aminul Islam
Summary: The study investigated the petroleum generation kinetics of the Early to Late Miocene Belait Formation in Brunei-Muara district using the PhaseKinetic approach. The source rock characteristics indicate mainly type III-II and type III kerogens, with petroleum grading from paraffinic-naphthenic-aromatic high wax to gas and condensate. Pyrolysis data suggest that hydrocarbon generation occurs at temperatures ranging from 105-120 degrees C for 10% transformation ratio, with the end of generation expected at temperatures above 170 degrees C.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Surya Tejasvi Thota, Mohamed Ragab Shalaby
Summary: The Carboniferous rock samples of the Limburg Group formations were studied to investigate their source rock characteristics and hydrocarbon generative potential. The study found that these formations have excellent potential as a source of hydrocarbons, with total organic carbon ranging from 0.31% to 83.56%. The analysis also revealed that the kerogen in these formations is type II-III and type III, which generate gas prominently.
Article
Energy & Fuels
Kamalia Norjannah Kamalrulzaman, Mohamed Ragab Shalaby, Md Aminul Islam
Summary: The aim of this study is to characterize the source rocks of the Latrobe Group's formations in the Gippsland Basin. The results show that the source rocks have good organic abundance and hydrocarbon generative potential. The study also reveals the depositional environment and hydrocarbon generation history of the source rocks. This study is important for understanding the burial history, hydrocarbon generation, and development of hydrocarbon fields in the Gippsland Basin.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Mohamed Ragab Shalaby, Syamimi Hana Binti Sapri, Md Aminul Islam
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2020)
Article
Energy & Fuels
Mohamed Ragab Shalaby, Muhammad Izzat Izzuddin bin Haji Irwan, Liyana Nadiah Osli, Md Aminul Islam
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2020)
Article
Energy & Fuels
Mohamed Ragab Shalaby, Owais Ahmed Malik, Daphne Lai, Nurhazwana Jumat, Md Aminul Islam
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2020)
Article
Energy & Fuels
S. M. Talha Qadri, Md Aminul Islam, M. R. Shalaby
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2019)
Article
Energy & Fuels
Liyana Nadiah Osli, Mohamed R. Shalaby, Md Aminul Islam
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2019)
Review
Geosciences, Multidisciplinary
Fuquan Yang, Xinxia Geng, Zhixin Zhang, Guoren Liu, Hanqing Zhang
Summary: Northern Xinjiang in China is an important part of the Central Asian Orogenic Belt, characterized by multiple episodes and types of mineralization. Cu and Au deposits are mostly found in Altay, Junggar, and Tianshan, with minor occurrences in Beishan. The most common types of Cu-Au deposits are volcanogenic and porphyry deposits. The formation of Cu-Au deposits can be divided into five mineralization episodes, with the Devonian and Carboniferous being the main periods. These deposits developed in various tectonic settings, including island arc, continental arc, collision, and postcollisional extensional tectonics.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Jiang Zhu, Dan-yang Liu, Chao Chen, Song Chen, Yuan-bing Zou, Leonid Danyushevsky, Jing-meng Huang, Xiang-wei Tang
Summary: Numerous lode gold and silver deposits have been discovered in orogenic belts in China. This study focuses on the formation and fluid evolutions of the super-large Yingdongpo gold and giant Poshan silver deposits in the Tongbai-Dabie orogen. The results suggest that both deposits were formed concurrently with Early Cretaceous granitic magmatism and the ore-forming fluids were primarily of magmatic origin with meteoric water inputting. The gold mineralization is related to a change in the physicochemical properties of the fluids, while the silver mineralization is favored by progressive deposition of sulfides in a slowly cooling hydrothermal system.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Arun Bhadran, B. P. Duarah, Drishya Girishbai, Mohammad Atif Raza, Avi Mero, Sandeep Lahon, A. L. Achu, Girish Gopinath
Summary: The Brahmaputra foreland basin, known for its dynamic tectonism and sediment load, exhibits a variety of seismically generated soft sediment deformation structures (SSDS) such as clastic dikes, sand sills, and micro-faults. These structures, influenced by multiple strong seismic events, are characterized by their dimensions, intrusion angles, cross-cutting relations, wall shattering, and age. The study suggests that a significant earthquake with high intensity and magnitude might have caused liquefaction features in the area. The findings highlight the importance of studying SSDS in tectonically active regions with limited surface ruptures and dense alluvial cover.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Huan Wang, Lirong Dou, Xingyang Zhang, Jiquan Yin, Beiwei Luo, Haigang Duan, Peiguang Yang, Yifan Song
Summary: Quantitative analysis of sediment composition and microfacies helped identify changes in facies belts in the Cretaceous Mishrif Formation. The study demonstrated the importance of carbonate microfacies quantification and its implications for paleogeographic research.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Boran Wang, Zhilong Huang, Dongsheng Xiao, Haiyue Yu, Wenren Zeng, Xin Wang, Tong Qu, Zhiyuan Li, Yizhuo Yang
Summary: By systematically analyzing the source rocks of the Sangonghe Formation in the Taibei Sag, NW China, and using kerogen kinetics modeling, this study reveals the influence of geological conditions on hydrocarbon generation and expulsion. The source rocks in different environments show distinct geochemical characteristics and hydrocarbon generation potential.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Haiying Yang, Zhifang Zhao, Haifeng Fan, Min Zeng, Jiafei Xiao, Xiqiang Liu, Shengwei Wu, Jiangqin Chao, Yong Xia
Summary: This paper investigates the REE enrichment and the role of Fe/Mn (oxyhydr)oxides in marine phosphorites from the early Cambrian period in South China. The study reveals that Fe/Mn (oxyhydr)oxides play a crucial role in REE enrichment and are controlled by Fe-redox pumping.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Qing Li, Hongbin Wang, Feng Cai, Di Luo, Fanxing Kong, Ang Li, Xiting Liu
Summary: The elemental and isotopic compositions and abundance of carbonates in marine sediments are used to reconstruct ancient climate and ocean conditions. This study analyzed sediment samples from the Okinawa Trough to examine the relationship between carbonates' compositions and methane seepage and sea-level changes. The results indicate that both biogenic and authigenic carbonates are important factors in understanding paleoclimate and paleoceanography.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Maryam Akbarzadeh Aghdam, Abdolreza Ghods, Farhad Sobouti, Khalil Motaghi, Keith Priestley, Mohammad Enayat
Summary: The Makran subduction zone is difficult to monitor due to limited seismic activity, but a temporary seismic network was installed to investigate the relationship between different regions and detect seismicity. The observed seismicity suggests the presence of structural boundaries and seismically inactive areas.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Zhen-Yu Wang, Hong-Rui Fan, Hai-Dong She, Kui-Feng Yang
Summary: This study conducted detailed geochemical, geochronological and isotopic analyses on the Songxian syenite in the Qinling Orogen. The results revealed the magma sources, petrogenesis and geodynamic implications of this alkaline intrusion. The study suggests that the syenite was formed through multiple stages of magmatism, involving the partial melting of the enriched lithospheric mantle and mixing with melts derived from the lower crust.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Yu Li, Wen-Liang Xu, Xiao-Ming Zhang, Jie Tang
Summary: This study presents new zircon U-Pb-Hf and whole-rock geochemical data for Jurassic intrusive rocks in the Yanbian area of NE China, providing insights into the subduction history of the Paleo-Pacific Plate. The study reveals three stages of Jurassic magmatism in the area, indicating the presence of an active continental margin related to the initial subduction of the Paleo-Pacific Plate beneath the Eurasian continent.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Lina Ai, Shengfa Liu, Shuai Cong, Hui Zhang, Peng Cao, Kaikai Wu, Wenxing Ye, Che Abd Rahim Mohamed, Xuefa Shi
Summary: This study investigates the depositional configurations and sedimentary environments of the Malacca Strait through analyzing grain size characteristics and hydrographic data. The results show that residual sediments are concentrated in the central region, while modern terrigenous sediments are distributed along the coast of Malaysia and the northern region. The sedimentary environments are influenced by seasonal variations and hydrodynamic conditions.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Liang Xiao, Jia-qi Liang, Li-yan Guo, De-shuang Ji, Man Yuan, Xiang-chuan Li, Nan Sun, Zuo-chen Li
Summary: This study investigates the correlation between stable carbon isotopes of plant fossils and CO2 levels in the Jurassic period. The results suggest a weak correlation between the two, indicating caution is needed when using stable carbon isotopes to reconstruct high paleo-CO2 concentrations.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Xuli Yang, Feng Huang, Jifeng Xu, Xijun Liu, Liying Zhang, Zhao Zhang, Benyan Xu, Man Zhang, Yunchuan Zeng, Qian Liu, Mingda Lv
Summary: The extensively developed Early Cretaceous intermediate-felsic rocks in the northern North China Craton provide valuable insights into the nature of Paleo-Pacific subduction and associated geodynamic processes. Geochemical and geochronological analyses of trachyandesites and rhyolites from the eastern Hebei, northern NCC suggest that the trachyandesites likely originated from enriched mafic lower crust and the rhyolites are derived from the trachyandesitic magmas through fractional crystallization. The migration direction change of these rocks is believed to be primarily attributed to slab rollback of the subducting Paleo-Pacific Plate.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Wei Liu, Ping Gao, Xianming Xiao, Yanming Zhao, Yijie Xing, Jinku Li
Summary: The organic-rich shales of the Shuijingtuo Formation in China are an important target for shale gas exploration. The upper section of the formation, primarily consisting of limestone, silty shale, and black shale, has been rarely studied but recently showed promising results for shale gas exploration. Geochemical investigations of the upper section shale deposits revealed that the organic matter enrichment mechanism underwent dynamic changes due to relative sea-level changes and episodic upwelling activities.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Xin Wang, Chen Zhang, Zixin Xue, Qianyou Wang, Zhenxue Jiang, Kun Zhang, Xiangye Kong
Summary: This study analyzed the heterogeneity of gas compositions and the effects of magmatism on gas accumulation in shale gas exploration in the Yangtze plate. The results showed that magmatism caused the development of micro-fractures in shale reservoirs and accelerated the thermal evolution rate of organic matter. The impact of magmatism on shale gas accumulation varied in different regions, either favoring or compromising efficient gas accumulation in shale reservoirs.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)