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
J. Richard, J. -P. Sizun
Summary: The study focuses on the Bonnevaux section in the Jura inner platform of France during the Middle Oxfordian period. It reveals that a sequence composed of microporous limestones can exhibit a wide range of original microfacies associated with different depositional environments. The reservoir qualities and transport properties of these microporous limestones show spatial evolution at the platform scale, with an increase in total porosity and permeability, and a decrease in trapped porosity. The increase in permeability is correlated with changes in the pore access radii and the control of meteoric pore-fluid flows by microporosity during burial diagenesis.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Fares Azzam, Thomas Blaise, Patricia Patrier, Ahmed Abd Elmola, Daniel Beaufort, Eric Portier, Benjamin Brigaud, Jocelyn Barbarand, Sylvain Clerc
Summary: The turbidite sandstone of the Agat Formation is an important hydrocarbon reservoir in the Norwegian North Sea, and its reservoir quality is greatly influenced by diagenesis. Early diagenesis results in the formation of chlorite coatings, which control the reservoir quality. Calcite cementation and K-feldspar dissolution in late diagenesis affect the permeability of the reservoir.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Engineering, Environmental
Mohamed K. K. Salah, H. T. Janjuhah, Josep Sanjuan, Elsa Maalouf
Summary: This study collected a large number of carbonate rock samples from southern Lebanon to investigate their lithofacies, pore types, diagenetic processes, and their impact on petrophysical and elastic properties. Results show that diagenetic processes have different impacts on porosity and permeability, leading to variations in seismic wave velocities. Factors such as composition, rock texture, pore types, and pore aspect ratios also have significant effects on the elastic properties of the rocks. These findings are crucial for a better understanding of both onshore and offshore carbonate rocks, which can host hydrocarbon, groundwater, and geothermal energy resources.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Sardar M. Balaky, Maha M. Al-Dabagh, Irfan Sh. Asaad, Mazin Tamar-Agha, Mohammed S. Ali, Ahmed E. Radwan
Summary: This research emphasizes the significance of sedimentological and petrophysical heterogeneity in carbonate oil exploration in northwestern and northern Iraq.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Huan Wang, Kaibo Shi, Yongsheng Ma, Bo Liu, Xinmin Song, Yuzhu Ge, Hangyu Liu, Rene Hoffmann, Adrian Immenhauser
Summary: The study on Mishrif carbonates in the Central Mesopotamian Basin of Iraq shows a wide range of rock fabrics and diagenetic features that impact reservoir quality and flow properties. A homoclinal ramp geometry model with twelve microfacies types is proposed, showing low-energy conditions in the ramp. Two main diagenetic features shape reservoir properties, including early diagenetic dissolution and preferential cementation, leading to distinctive reservoir qualities.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Robert Klaebe, Peter Swart, Robert Frei
Summary: The study investigates the heterogeneity of 853Cr values on a modern marine carbonate platform and compares new 853Cr values from carbonate sediments to modern carbonate sediments accumulating on the platform. The variability in 853Cr values is found to be related to changes in sediment composition and mineralogy, rather than fluctuations in water column redox conditions.
Article
Geosciences, Multidisciplinary
Jue Hou, Lun Zhao, Wenqi Zhao, Zhao Feng, Xueke Wang, Xing Zeng
Summary: This study classified and evaluated the pore-throat structures of Carboniferous carbonate reservoirs in the North Truwa oilfield of the Pre-Caspian Basin, and established the classification and evaluation standards of pore-throat structures in different petrophysical facies. The relationship between different petrophysical facies and productions was revealed by combining with the flow profile measured by production logging tools. The results of this study can provide suggestions for the adjustment strategy of water-driven production, laying an important foundation for the fine development of carbonate reservoirs.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geology
Hamzeh Mehrabi, Emad Yahyaei, Amin Navidtalab, Hossain Rahimpour-Bonab, Ramin Abbasi, Mahboobeh Omidvar, Ali Assadi, Javad Honarmand
Summary: This study focuses on the sedimentological, geochemical, and petrophysical analysis of the Sarvak Formation in the Abadan Plain, Zagros Basin. Petrographic studies have identified five microfacies, representing different depositional environments. Two depositional sequences from the Cenomanian-Turonian period have been differentiated based on biostratigraphic analysis. The effects of meteoric diagenesis, such as dissolution, brecciation, and silicification, have been observed. The reservoir quality of the Sarvak Formation is influenced by facies characteristics and meteoric diagenetic processes, which can be predicted within a high-resolution sequence stratigraphic framework.
SEDIMENTARY GEOLOGY
(2023)
Article
Energy & Fuels
Yousef Ibrahem, V. P. Morozov, V Sudakov
Summary: This study focused on the sedimentary rocks of the Lower Cretaceous in the Euphrates Graben area, using various techniques like core description, thin section observations, and electron microscopy. The research identified different types of dolomites in the Judea Formation, indicating a two-stage diagenetic history for the sediments, which led to improved reservoir properties by enhancing porosity.
Article
Geology
Cecilia B. Sanders, John C. Eiler, John P. Grotzinger
Summary: This study provides a paragenetic framework for phosphatic and non-phosphatic lithofacies of the Salitre Formation and reveals that the primary differences in porewater biogeochemistry may be the main mechanism controlling the distribution of phosphate and non-phosphate cements. Therefore, this study suggests that the ecology of the Ediacaran seafloor controlled the style and quality of mineralization observed today, and the presence of CFA cements in these rocks represents a unique taphonomic window for select microbial communities.
SEDIMENTARY GEOLOGY
(2023)
Article
Geology
Khadidja Boutaleb, Rafik Baouche, Moussa Sadaoui, Ahmed E. Radwan
Summary: This research investigates the Lower Turonian carbonate succession in the Djebel Darmoun Field, Algeria, focusing on microfacies, diagenesis, petrophysical, and geochemical characteristics. The study reveals the potential of this area as an unconventional reservoir unit and provides insights into factors controlling the pore system network and organic richness.
SEDIMENTARY GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Viswasanthi Chandra, Alexander Petrovic, Pankaj Khanna, Ahmad I. Ramdani, Bora Yalcin, Volker Vahrenkamp, Thomas Finkbeiner
Summary: This paper presents a comprehensive analysis of multiscale geological, petrophysical and rock mechanical data acquired from 35 m of outcrop well core from the Late Jurassic Upper Jubaila Formation in Saudi Arabia. The study identified four main lithofacies types and discussed factors influencing rock properties and mechanical behavior, such as mineralogy, dedolomitization, and permeability controls. Despite reduced porosity, the compressive rock strength in the outcrop core was found to be lower than that of the subsurface equivalent rocks, indicating overall weakening of the rock due to telogenetic processes and surface weathering.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Energy & Fuels
Fuyong Wang, Fanchao Zeng, Lu Wang, Xianmu Hou, Hui Cheng, Jian Gao
Summary: This study analyzed the fractal characteristics of pore spaces in tight sandstones from the Ordos Basin in China, using NMR and RCP techniques. It showed that the fractal dimensions of pore spaces with movable fluids were negatively correlated with permeability and reservoir quality index, with fractal dimensions approaching 3 indicating less favorable petrophysical properties. Different fractal models were compared for calculating fractal dimensions, with the 3D capillary model found to be the most accurate for evaluating tight sandstone properties.
Article
Geosciences, Multidisciplinary
Irene Aubert, Hugues Bitault, Philippe Leonide, Francois Fournier, Nicolas Godeau, Juliette Lamarche, Pierre Deschamps, Rodrigo S. Maia Correa, Lionel Marie
Summary: This study investigates the diagenetic evolution of carbonate rocks affected by a normal fault, through analyzing the diagenetic properties and distribution of cements. The results show that most diagenetic alterations occurred prior to the OligoAquitanian stage, and the fault-related alteration is limited to one stratigraphic unit, extending up to 700 meters from the fault surface.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Kevins Rhino, Corinne Loisy, Adrian Cerepi, Olivier Le roux, Bruno Garcia, Virgile Rouchon, Sonia Noirez, Clemence Le Gallo, Philippe Delaplace, Olivier Willequet, Claude Bertrand, Aicha El Khamlichi
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2016)
Article
Green & Sustainable Science & Technology
Kevins Rhino, Corinne Loisy, Adrian Cerepi, Bruno Garcia, Virgile Rouchon, Aicha El Khamlichi, Sonia Noirez
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2018)
Article
Geology
J. Le Goff, J. J. G. Reijmer, A. Cerepi, C. Loisy, R. Swennen, G. Heba, T. Cavailhes, S. De Graaf
CRETACEOUS RESEARCH
(2019)
Article
Geosciences, Multidisciplinary
A. Jabir, A. Cerepi, C. Loisy, J-L Rubino
JOURNAL OF AFRICAN EARTH SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
A. Maufrangeas, S. Leleu, C. Loisy, P. Roperch, D. Jolley, C. Vinciguerra, O. Nguyen-Thuyet
JOURNAL OF THE GEOLOGICAL SOCIETY
(2020)
Article
Green & Sustainable Science & Technology
O. Gassara, A. Estublier, B. Garcia, S. Noirez, A. Cerepi, C. Loisy, O. Le Roux, A. Petit, L. Rossi, S. Kennedy, T. Brichart, P. Chiquet, L. Luu Van Lang, F. Andre Duboin, J. Gance, B. Texier, B. Lavielle, B. Thomas
Summary: The Aquifer-CO2 Leak project aims to study the migration of carbon dioxide in aquifers and test CO2 monitoring equipment. The experiment will be conducted in an underground limestone quarry in France, with successful estimation of experiment parameters through numerical simulations. Sensitivity analysis identified water table level and dispersivity as the most sensitive parameters.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Green & Sustainable Science & Technology
Anelia Petit, Adrian Cerepi, Corinne Loisy, Olivier Le Roux, Lena Rossi, Audrey Estublier, Julien Gance, Bruno Garcia, Benoit Hautefeuille, Bernard Lavielle, Thomas Brichart, Sonia Noirez, Frederic Martin, Benoit Texier, Sean Kennedy, Aicha El Khamlichi
Summary: The study aims to understand the environmental impact of a CO2 leak on water quality in a carbonate freshwater aquifer, as well as CO2-water-carbonate interactions. Using an Oligocene carbonate underground quarry experiment, key indicators for monitoring a gas plume during CO2 geological storage were identified, along with the importance of the interaction between CO2 and limestone.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Green & Sustainable Science & Technology
Anelia Petit, Olivier Le Roux, Adrian Cerepi, Corinne Loisy
Summary: The study aims to understand the impact of dissolved CO2 concentrations on physicochemical parameters, particularly electrical conductivity and pH. Through laboratory experiments and measurements, a calibration line has been established to link the relation between electrical conductivity, CO2 concentrations, and pH values, providing a way to estimate CO2 concentrations based on electrical properties.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Green & Sustainable Science & Technology
Lena Rossi, Corinne Loisy, Adrian Cerepi, Anelia Petit, Olivier Le Roux, Audrey Estublier, Sonia Noirez, Frederic Martin, Benoit Hautefeuille, Thomas Brichart, Bruno Garcia
Summary: An experimental leak simulation was conducted to investigate the effects of CO2 injection on a shallow carbonated aquifer. The results showed that dissolved CO2 led to the dissolution of calcite and desorption of iron oxides, resulting in increased concentrations of trace elements in the water. However, the aquifer showed strong resilience and buffering capacity, with concentrations returning to initial levels relatively quickly.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Geosciences, Multidisciplinary
A. Jabir, A. Cerepi, C. Loisy, J-L Rubino
Summary: This study investigates the general characteristics of reservoirs in Paleozoic formations in the Ghadames and Jefarah basins in Libya and Tunisia. By analyzing data from over twenty-six wells, it identifies nine main Paleozoic reservoir systems and their connection to major hydrocarbon source rocks. The research demonstrates the influence of depositional facies and paleogeographical setting on the evolution and heterogeneity of reservoir properties.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geology
Constance Vinciguerra, Sophie Leleu, Delphine Desmares, Laurent Emmanuel, Luis Martinez, Corinne Loisy
Summary: This study improves the stratigraphic scheme of the Tremp-Graus Basin sedimentary succession by using a new dataset of isotopic variations and organic carbon content, supported by biostratigraphic analysis and previous data. The research reveals significant isotopic variations in the studied deposits, which can be correlated with global geologic events.
CRETACEOUS RESEARCH
(2022)
Article
Geochemistry & Geophysics
A. Petit, A. Cerepi, O. Le Roux, C. Loisy, S. Kennedy, A. Estublier, S. Noirez, B. Garcia, A. El Khamlichi
Summary: This study investigates water dynamics in a carbonate vadose zone using TDR method and electrical properties at the natural site of Saint-Emilion in an underground quarry in Gironde, France. The research considers physical properties of the medium such as porosity, permeability and effective diffusivity to explain the water transfer process. Electrical resistivity tomography provides 2D images of water dynamics, with changes in water content affecting the electrical properties of the medium.
PURE AND APPLIED GEOPHYSICS
(2021)
Proceedings Paper
Green & Sustainable Science & Technology
B. Garcia, K. Rhino, C. Loisy, O. Le Roux, A. Cerepi, V. Rouchon, S. Noirez, C. Le Gallo, Ph. Delaplace, O. Willequet, C. Bertrand
13TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-13
(2017)
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)