Article
Energy & Fuels
Andrzej Urbaniec, Anna Laba-Biel, Anna Kwietniak, Imoleayo Fashagba
Summary: This study focuses on the poorly recognized Upper Cretaceous complex in the central part of the Carpathian Foreland, using seismic data and seismic sequence stratigraphy to analyze the depositional architecture and identify tectonostratigraphic units. The research fills a gap in the knowledge of paleogeography and explores the impact of eustatic and tectonic factors on sedimentation processes in the Late Cretaceous basin of the Carpathian Foreland.
Article
Geology
Richard O. Lease, David W. Houseknecht, Andrew R. C. Kylander-Clark
Summary: Sequence stratigraphy provides a framework for interpreting sedimentary basin evolution. This study uses detrital zircon U-Pb (DZ) dating and seismic mapping to establish a chronostratigraphic framework for the Torok-Nanushuk clinothem of Arctic Alaska. The study reveals the timing and duration of key depositional elements and captures the chronology of a large regressive-transgressive cycle.
Article
Geosciences, Multidisciplinary
S. Morad, U. Farooq, H. Mansurbeg, M. Alsuwaidi, D. Morad, I. S. Al-Aasm, S. Shahrokhi, M. Hozayen, H. Koyi
Summary: Petrography, petrophysics, and geochemistry are used to study the dolomitization and reservoir quality of an Upper Cretaceous carbonate reservoir in Abu Dhabi, United Arab Emirates. The dolomitization in highstand systems tracts is attributed to tidal and evaporative pumping as well as seepage reflux during relative sea-level fall. Dolomitization in bioturbation sites is attributed to localized geochemical conditions. The porosity and permeability of the dolostones are strongly controlled by depositional textures and subsequent diagenesis, including dolomite cementation and dissolution. The study highlights the importance of dolomitization in controlling reservoir lithology and heterogeneity in carbonate successions.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Zheng Cao, Karem Azmy, Chengyan Lin, Chunmei Dong, Lihua Ren, Mingyang Qin, Zhijun Li, Xianfeng Tan, Lei Zhang, Xiaogang Li
Summary: This study evaluates the reservoir quality of the oil-bearing layer in the southern Songliao Basin, northeast China using different research methods. The results show that the sedimentary facies and diagenesis have significant effects on the reservoir quality of the unconventional reservoir. It is also found that the distributary channel sandstones in the LST have relatively higher reservoir quality.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Pedro Kress, Octavian Catuneanu, Ricardo Gerster, Nestor Bolatti
Summary: The study of the evolutionary process of the Argentine margin from the Early Cretaceous to the Late Cretaceous has identified four major turning points, involving crustal breakup, changes in the coastline, variations in water depth, and reorganization of sediment dispersal systems.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Engineering, Marine
Leifu Zhang, Wenqi Zhang, Yong Li, Benbiao Song, Dawang Liu, Ya Deng, Jiacheng Xu, Yuning Wang
Summary: This study focuses on the Mishrif Formation in Iraq and utilizes various data to improve the understanding of its sequence stratigraphy, depositional evolution, and reservoir characteristics. The study identifies five types of facies associations and establishes a sequence stratigraphic framework. The characterization of tidal channels, clinoform-like shoals, and intrashelf basin deposits is significant for the development of the Mishrif Formation.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Daniel Galvao Carnier Fragoso, Anderson Henrique de Melo, Lucas Arienti Goncalves, Rodrigo Brandao Bunevich, Julio de Aratanha Maia Araujo, Thiago Camanho da Costa, Carlos Alexandre Pedrosa, Claiton Marlon Dos Santos Scherer
Summary: This case study focused on characterizing a pre-salt reservoir in the Marlim and Voador fields in the Campos Basin using high-resolution sequence-stratigraphic methodology. The study revealed at least five hierarchies in the geological record of the reservoir and identified different phases of the Basin's tectonic evolution. The detailed stratigraphic zoning explained the depletion behavior of the reservoir and provided recommendations for 3D geological modeling, development planning, and reservoir management.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Jun Ni, Dingding Zhao, Xixuan Liao, Xuanran Li, Libing Fu, Ruxian Chen, Zhentong Xia, Yuming Liu
Summary: This study investigated the sandstone architecture of the Middle Jurassic deltaic reservoirs in the Zhetybay Oilfield, Mangeshrak Basin, Kazakhstan, using 3D seismic and well log data. It was found that the base-level cycles control the evolution of the delta front sand body architecture.
Article
Geology
Juan Jose Ponce, Noelia Carmona, Damian Jait, Martin Cevallos, Christian Rojas
Summary: Integrated sedimentological and ichnological studies in the Austral Basin, Argentina, show that the Upper Cretaceous La Anita Formation is a river-dominated deltaic system affected by hyperpycnal discharges and storm events. The delta front facies associations are the major reservoir of the formation, and three types of deltaic mouth bars have been characterized. These mouth bars produce lobe-like geometries and are the main processes of delta front construction and progradation. This proposed model can be applied to the analysis of other reservoirs where mouth bar architectural elements are dominant.
Article
Energy & Fuels
Liu Hanlin, Qiu Zhen, Xu Liming, Wang Fengqin, Tong Qiang, Lin Jiahao, Yin Shuai, Wang Wenqiang
Summary: Through analysis of thick-bed sand bodies in the Chang 8(2) sub-member, two main types were identified in the region: wide strip and irregular lump shapes, with genetic models being superimposed distributary channel sand bodies in high accommodation space and superimposed composite sand bodies in low accommodation space.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Geochemistry & Geophysics
Jun Sheng, Jincheng Liu, Qingshan Qi, Xin Li, Wulin Tan, Xin Chai, Bin Guo, Xiaojing Yang, Debin Yi, Shanshan Lu, Yanan Li, Caiyan Zhang
Summary: Using the VII oil group of N-2(1) reservoir in Gasikule Oilfield as a case study, this paper divides the sedimentary time unit into barrier layer, interbed, and sand bed based on analysis of sedimentary system and sand body development model. A new residual muddy intercalation period division theory and sandwich layer point coincidence modeling technology are proposed for accurate characterization and description of sedimentary time units.
Article
Geosciences, Multidisciplinary
Nikolaos A. Michael, Neil W. Craigie
Summary: A new method utilizing principal component analysis was introduced to identify chemostratigraphic zones and interpret geological boundaries more effectively. By using PC curves instead of individual element profiles, this approach simplifies the process for non-experts and provides a higher resolution integrated correlation scheme.
Article
Geosciences, Multidisciplinary
Henrik Nohr-Hansen, Gunver Krarup Pedersen, Paul C. Knutz, Jorgen A. Bojesen-Koefoed, Kasia Kamila Silwinska, Jussi Hovikoski, Jon R. Ineson, Lars Kristensen, Jens Therkelsen
Summary: The core analysis of boreholes drilled in northeast Baffin Bay revealed a Lower Cretaceous succession of sandstones, mudstones, and thin coal beds of Albian age, dominated by terrestrial material and brackish-water dinoflagellate cysts. The Upper Cretaceous sedimentary succession of Cenomanian-Turonian age consists of black marine mudstone with varying amounts of discrete sand layers, suggesting deposition in an anoxic-dysoxic to oxygen-restricted paleoenvironment with variable organic richness and petroleum potential.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Robert G. Loucks, Sheng Peng
Summary: This study analyzed porosity and permeability of the Austin Chalk reservoirs, indicating that different lithofacies have significant impact on reservoir quality. Three measurement methods were used and the results differed, with the modified gas expansion method showing the best correlation between porosity and permeability.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Energy & Fuels
Alireza Asadi, Hossain Rahimpour-Bonab, Mohsen Aleali, Mehran Arian
Summary: This study integrates sedimentological and petrophysical data for reservoir evaluation in the Late Jurassic-Early Cretaceous Fahliyan Formation of two oilfields in the northwest of the Persian Gulf. It identifies twelve microfacies, classifies them into four facies associations, and recognizes three third-order depositional sequences. Dissolution and cementation are the main diagenetic features affecting the different depositional sequences, influencing reservoir quality. Flow units are identified using various methods, showing good correlation in the studied oilfields, which may be useful for future hydrocarbon exploration in the region.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Geography, Physical
Rui Zhang, Zhijun Jin, Quanyou Liu, Peng Li, Zhenkai Huang, Juye Shi, Yunjin Ge, Kefeng Du
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2019)
Article
Geosciences, Multidisciplinary
Yuewu Sun, Xiang Li, Quanyou Liu, Mingda Zhang, Peng Li, Rui Zhang, Xiao Shi
GEOLOGICAL JOURNAL
(2020)
Article
Energy & Fuels
He Bi, Peng Li, Yun Jiang, Jing-Jing Fan, Xiao-Yue Chen
Summary: This study focused on the Upper Cretaceous Qingshankou Formation, Yaojia Formation, and the first member of the Nenjiang Formation in the Western Slope of the northern Songliao Basin. It analyzed the geochemical parameters and conducted one-dimensional basin modeling and hydrocarbon evolution to discuss the effectiveness of source rocks. Through biomarker characteristics, oil-source correlations were assessed, revealing different organic matter sources and thermal evolution degrees in Gulong and Qijia source rocks.
Article
Geosciences, Multidisciplinary
Quanyou Liu, Peng Li, Zhijun Jin, Xinping Liang, Dongya Zhu, Xiaoqi Wu, Qingqiang Meng, Jiayi Liu, Qi Fu, Jianhua Zhao
Summary: The study highlights the significant impact of sulfate reduction on organic matter preservation, with higher SRI values leading to extensive organic matter consumption and lower SRI values resulting in minimal degradation effects.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Peng Li, Zhongbao Liu, Haikuan Nie, Xinping Liang, Qianwen Li, Pengwei Wang
Summary: The lacustrine shale in the Dongyuemiao Member of the Fuling area, Sichuan Basin, exhibits heterogeneity in terms of porosity and permeability, with mixed shale having better physical properties than argillaceous shale. Factors controlling the development of main pores include total organic carbon, clay minerals, and organic-inorganic interactions during diagenesis and hydrocarbon generation.
FRONTIERS IN EARTH SCIENCE
(2021)
Review
Geosciences, Multidisciplinary
Quanyou Liu, Peng Li, Zhijun Jin, Yuewu Sun, Guang Hu, Dongya Zhu, Zhenkai Huang, Xinping Liang, Rui Zhang, Jiayi Liu
Summary: The study focused on the impact of volcanic activity on paleoproductivity and preservation conditions in lacustrine shale formation. The results indicated that volcanic activity enhanced ancient productivity and promoted organic matter preservation.
SCIENCE CHINA-EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Peng Li, Zhongbao Liu, He Bi, Jun Liu, Min Zheng, Guoqiang Wu, Ruikang Bian, Pengwei Wang
Summary: This study analyzed the pore-throat structure characteristics of the Chang 7 member in the Ordos Basin in China using nuclear magnetic resonance and high-pressure mercury intrusion experiments. The results showed that the pore-throat structure parameters are influenced by pore size distribution and exhibit obvious piecewise fractal characteristics. The study provides important insights for the effective development of shale oil and gas exploration.
INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
(2022)
Article
Geochemistry & Geophysics
Peng Li, Zhongbao Liu, He Bi, Jingjing Fan, Rui Zhang, Zhenkai Huang, Ruikang Bian, Pengwei Wang
Summary: This study explores the oil content and its controlling factors of shale in the Chang 7 member of the Yanchang Formation in the Ordos Basin. The results show that the shale exhibits organic heterogeneity and can be divided into upper and lower shale. The upper shale has low total organic carbon and slightly low oil content, but good mobility. The lower shale has high total organic carbon and good oil content, but poor mobility. The organic carbon content and type in the shale have a significant control effect on oil bearing and mobility.
INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION
(2022)
Article
Geosciences, Multidisciplinary
Qianwen Li, Zhongbao Liu, Feiran Chen, Guangxiang Liu, Dianwei Zhang, Peng Li, Pengwei Wang
Summary: Comprehensive analysis of the Jurassic Da'anzhai Member shale strata in the northeastern Sichuan Basin reveals the organic geochemical characteristics, organic matter provenance, and sedimentary environment. The J(1)da(2) section is identified as the most favorable for hydrocarbon enrichment. The organic matters in the J(1)da shale strata are derived from both terrestrial higher plants and lower aquatic organisms, suggesting a freshwater lacustrine environment overall.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Wang Zhang, Zhijun Jin, Quanyou Liu, Xiaocai Shan, Peng Li, Xinping Liang
Summary: This study investigates the importance of Dissimilatory Iron Reduction (DIR) and Bacterial Sulfate Reduction (BSR) in the preservation of organic matter in ancient continental lakes. The results show that the BSR triggered by exogenous sulfate input contributes to the preservation of organic matter in anoxic lake basins. The study also reveals the dynamic evolution of the interaction between BSR and DIR through the components of reactive irons.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
H. K. Nie, Q. Chen, P. Li, W. Dang, J. C. Zhang
Summary: The assessment of shale gas potential in the northwest margin of Ordos Basin in China focused on the Ordovician Pingliang Formation and Carboniferous-Permian Taiyuan and Shanxi formations. The study revealed the impact of fluctuating depositional environments on lithofacies and shale gas potential. By conducting various tests on representative samples, it was found that the Pingliang shale is a 'poor' source rock, while the transitional Taiyuan-Shanxi shales are characterized as 'fair' source rocks, with some samples showing good potential. The sedimentary environment plays a crucial role in the type and content of minerals in shale and ultimately controls the shale gas potential.
AUSTRALIAN JOURNAL OF EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Rui Zhang, Zhijun Jin, Michael Gillman, Quanyou Liu, Ren Wei, Peng Li, Zhihui Zhang
Summary: Mounting evidence shows that the orbital period of the solar system's movement through the Milky Way has a controlling effect on Earth's system throughout the Phanerozoic. In this study, long-term cycles recorded in the Mesozoic Ordos Basin (Central China) are reported for the first time to decipher the response of terrestrial basin's rhythms to galactic dynamics. The analysis reveals compelling periodicities of 93, 33, 9, 3-5, and 2.4 million years.
SCIENCE CHINA-EARTH SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Huiyuan Xu, Quanyou Liu, Zhiquan Li, Dujie Hou, Xu Han, Peng Li, Pengpeng Li, Biqing Zhu
Summary: This study investigates the role of autotrophy and heterotrophy in the cycling/export of organic carbon in the shale or mudstone source rocks from the Chang 3 to 7 members of the Yanchang Formation. The results indicate that the Chang 7 member has higher quality and total organic carbon than other members. The shift in carbon cycling/export mode and dominant heterotrophic bacterial activity in the Chang 7 member improve organic carbon preservation. Rating: 7 out of 10.
Article
Geochemistry & Geophysics
Wang Zhang, Xinping Liang, Peng Li, Guoheng Liu, Jin Qian
Summary: Significant amounts of unconventional oil and gas resources have been discovered in the Yanchang Formation of Ordos Basin, primarily sourced from the shale layers in Chang 7 and 9 members. The C7-3 submember shale has the highest content of illite/smectite mixed layer and reducing minerals, while the C9 member shale has the highest percentage of quartz and illite. The C7-3 submember shale is characterized by high productivity due to type II1 kerogen, and the C9 member shale exhibits the highest organic thermal maturity.
Article
Geosciences, Multidisciplinary
Weijiao Ma, Jinbu Li, Min Wang
Summary: The petroleum resource assessment obtained from laboratory tests on old core samples tends to underestimate the in situ resources. This study investigates the hydrocarbon loss and restoration by comparing preserved and exposed core samples. It is found that previous studies have severely underestimated the in situ hydrocarbon potential due to factors such as sample crushing and crucible waiting. A new restoration model is proposed to compensate for these losses.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Shaoyun Chen, Yongqiang Yang, Longwei Qiu, Xiaojuan Wang, Erejep Habilaxim
Summary: Quartz cement is an important authigenic mineral in the tight sandstones of the Shaximiao Formation in the Sichuan Basin. This study analyzed the silicon sources of the quartz cement using mineralogical, fluid inclusion, and geochemical data. The results showed that smectite alteration and dissolution of aluminosilicate minerals were the primary sources of silicon for quartz cementation. Contributions from volcanic material hydrolysis and pressure solution were relatively minor. The presence of chlorite films inhibited the development of quartz overgrowths and had minimal impact on reservoir quality.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xing Jian, Ping Guan, Ling Fu, Wei Zhang, Xiaotian Shen, Hanjing Fu, Ling Wang
Summary: This study presents a synthesis of new detrital zircon dating results and published data from the Cenozoic Qaidam basin, revealing the spatiotemporal variation of detrital zircon age populations and supporting models of synchronous deformation in northern Tibet. The study emphasizes the importance of considering textural and sedimentological parameters in zircon provenance interpretations, as well as the need for integrated provenance analysis involving other detritus components.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
A. Peketi, G. Sriram, A. Mazumdar, P. Dewangan, A. Zatale, V. Rajurkar, Gayatri Shirodkar, V. Mahale, V. Yatheesh
Summary: This study investigates 13 submarine seamounts in the southern Andaman volcanic arc and observes evidence of hydrothermal activity in one of the seamounts. The evidence includes plumes rich in dissolved gases, live chemosymbiotic organisms, and the deposition of neoforming minerals. These observations suggest the development of a new hydrothermal field in the least explored Andaman Sea.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Yanxian Zhu, Zhiliang He, Xiaowen Guo, Long Li, Sheng He, Jian Gao, Shuangjian Li, Huili Li
Summary: This study investigates the fluid evolution history of the hydrothermal dolomite reservoir in the Middle Permian Maokou Formation in the Sichuan Basin. The results reveal the diagenetic sequences, mineral origins, salinity history, and pressure evolution using various analytical techniques. The findings provide important insights into the gas charge, escape, and preservation conditions of the reservoir.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Rafaella de Carvalho Antunes, Julia Campos Guerrero, Ricardo Jorge Jahnert
Summary: This study presents a detailed sedimentary model and identifies various sedimentary facies associations in the coquina deposits of the Itapema Formation in the offshore pre-salt Buzios Field of the Santos Basin. These facies associations were primarily influenced by waves and currents and reflect a complex depositional system.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Kang Meng, Tongwei Zhang, Deyong Shao, Xiuyan Liu, Hui Song, Heng Peng
Summary: In this study, an integrated method of measuring optical reflectance and Raman spectroscopy is proposed to accurately determine the thermal maturity of Lower Cambrian shales in South China. The results show that this method is reliable and effective, and it has important implications for analyzing overmature shale.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Mohamed A. K. El-Ghali, Olga Shelukhina, Iftikhar Ahmed Abbasi, Mohamed S. H. Moustafa, Osman Salad Hersi, Numair A. Siddiqui, Khalid Al-Ramadan, Abdullah Alqubalee, Abdulwahab Muhammad Bello, Abduljamiu O. Amao
Summary: This study employs an integrated depositional and sequence stratigraphic approach to assess the control of diagenesis on reservoir porosity of a hybrid-energy delta system. The study focuses on the Barik Formation in the Haushi-Huqf region of Central Oman, which represents a highstand system tract of a hybrid-energy delta. The assessments reveal that the reservoir porosity is controlled by various degrees of diagenetic processes, including mechanically infiltrated clays and kaolinitization of silicate grains.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xiaocan Yu, Chunlian Wang, Hua Huang, Kai Yan
Summary: Oilfield brines are a significant alternative lithium resource. This study investigates the metallogenic characteristics and enrichment process of oilfield brines from the Jianghan Basin, central China using chemical and multi-isotope data. The results suggest that lithium enrichment in these brines is the result of interaction with clastic host rocks and dilution by meteoric water.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Jianghao Qiao, Xiwu Luan, Thanuja D. Raveendrasinghe, Yintao Lu, Guozhang Fan, Xinyuan Wei, Long Jin, Jian Yin, Haozhe Ma, Lushan Jiang
Summary: This study investigates the Tanintharyi passive continental margin in the Andaman Sea and reveals the potential of the Oligocene/Early Miocene carbonate platform in the region as a significant hydrocarbon reservoir. It also examines the influence of changes in sedimentary facies and the tectonic setting of the Andaman Sea on the evolution of pockmarks.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Anastasios Nikitas, Georgios Makrodimitras, Maria V. Triantaphyllou, Nikolaos Pasadakis, Kimon Christanis, Stavros Kalaitzidis, Grigoris Rousakis, Ioannis Panagiotopoulos, Alexandra Gogou, Alexandros Papadopoulos, Efthimios Tartaras, Aristofanis Stefatos
Summary: Due to the lack of deep wells in the broader region, studying mud volcanic deposits can improve the geological understanding of the Mediterranean Ridge. In this study, biostratigraphic and geochemical analyses were performed on mud breccia deposits from five Mud Volcanoes in the central MR. The results indicate the origin of these deposits and provide insights into the source rock potential. Seismic data is also used to determine the distribution of major lithostratigraphic formations.
MARINE AND PETROLEUM GEOLOGY
(2024)