Article
Chemistry, Multidisciplinary
Abd Al-Salam Al-Masgari, Mohamed Elsaadany, Abdul Halim Abdul Latiff, Maman Hermana, Umar Bin Hamzah, IsmailAlwali Babikir, Teslim Adeleke, Qazi Sohail Imran, Mohammed Ali Mohammed Al-Bared
Summary: This study focused on sequence stratigraphy and seismic facies in the Central Taranaki basin, identifying four regional seismic sequences and boundaries representing unconformities. Analysis indicated a new perspective surface between the upper and lower Giant formation due to seawater encroachment. The study proposed a new sequence stratigraphy framework and discussed potential hydrocarbon accumulations, suggesting the SA-Middle Giant Formation (SEQ3) as a potential trap.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Ahmed-Reda M. El-Younsy, Abdelhamid M. Salman
Summary: The Upper Eocene-Oligocene sequence in the northwest Birket Qarun area was re-evaluated by sequence stratigraphy, identifying six depositional sequences with different sedimentary environments. The study shows fluctuations in depositional environments and sedimentary facies, indicating a complex sedimentary history shaped by regional tectonic settings and relative sea-level changes.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Mulky Winata, Chris Elders, Vittorio Maselli, Randell A. Stephenson
Summary: The post-rift succession of the Northern Carnarvon Basin in north-western Australia shows significant vertical and lateral variation in seismic facies, indicating a complex depositional history of the margin. The sedimentary sequences above the Valanginian breakup unconformity exhibit various marine depositional environments, including fine-grained pelagic/hemipelagic deposition, energetic bottom currents, and clinoforms and mass-transport complexes (MTCs). The development of bottom currents may be related to changes in ocean circulation, while the presence of MTCs suggests increased seismic activity and slope instability.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Environmental Sciences
Alexandros Varesis, George Anastasakis
Summary: This study explores the interaction between evolving tectonic and submarine sedimentation processes in the northwest Aegean Sea using marine multichannel seismic profiles. Significant lateral variations within the Messinian sequence, up to 0.8 s thick, were observed. The study highlights the overwhelming effect of tectonics on sedimentation in the area, with a focus on the Thermaikos Gulf region.
Article
Geosciences, Multidisciplinary
Camilla L. Wurtzen, Johnathon L. Osmond, Jan Inge Faleide, Johan Petter Nystuen, Ingrid M. Anell, Ivar Midtkandal
Summary: The study provides a refined depositional model of the Permian-Triassic alluvial rift succession in the Horda Platform area by integrating seismic and well-log data. The research highlights the influence of faulting on depocentre development and the interplay between tectonic and climatic forcing in subsurface continental deposits.
Article
Energy & Fuels
Kashif Ishaq, Sohail Wahid, Muhammad Yaseen, Muhammad Hanif, Shehzad Ali, Jawad Ahmad, Mubashir Mehmood
Summary: The study focused on the subsurface geology of Bannu Basin in western Indus foreland Pakistan, utilizing regional seismic profiles and deep exploratory wells data. The results indicate a northwest-dipping formation trend, with potential hydrocarbon entrapment structures identified. Well correlations show significant lateral and vertical variations, with well failures attributed to poor data quality and mechanical issues. Reservoir characterization using statistical rock physics and petrophysics can provide further insights into hydrocarbon exploration efforts.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Fabrizio Berra, Vincenzo Randazzo, Andrea Zanchi, Maria Rose Petrizzo, Felix Schlagintweit, Stefano Zanchetta, Hamid Reza Javadi
Summary: This study examines the timing and evolution of Cretaceous successions in the Central-Eastern Iran Microplate (CEIM) and Sanandaj-Sirjan Zone (SSZ). The study finds that the Cretaceous marine transgression occurred almost simultaneously on a levelled topography, indicating a previous deep erosion. Additionally, the stratigraphic evolution of the three studied areas reflects changes in depositional environments, suggesting different subsidence rates.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Haris Ahmed Khan, Ali Asghar Shahid, Muhammad Jahangir Khan, Taher Zouaghi, Maria Dolores Alvarez, Syed Danial Mehdi Naqvi
Summary: This research focuses on analyzing the sequence stratigraphic units of F3 Block, which is a wave-dominated delta of Plio-Pleistocene age. Three wells and a 3D seismic data are used in this study. The integration of seismic sequence stratigraphic interpretation with well logs and 3D geostatistical modeling aids in evaluating the shallow hydrocarbon traps. The resulting models can be utilized for similar studies and further research in reservoir characterization of the F3 block.
ACTA GEOLOGICA SINICA-ENGLISH EDITION
(2023)
Article
Geosciences, Multidisciplinary
Hui Gao, Xinming Wu, Jinyu Zhang, Xiaoming Sun, Zhengfa Bi
Summary: This article presents a workflow for automatically generating synthetic training datasets and demonstrates the effectiveness of using these datasets for seismic clinoform delineation. The workflow includes stochastic stratigraphic forward modeling, conversion to impedance models, simulation of synthetic seismic data, and training a deep neural network. Results from synthetic and field examples show that the network can accurately and efficiently delineate clinoforms in seismic data.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Geosciences, Multidisciplinary
Helge Loseth, Atle Nygard, Christine L. Batchelor, Timur Fayzullaev
Summary: The study utilized high-resolution seismic data to conduct a detailed analysis of Quaternary sediments in the northern North Sea, revealing that the sediment deposition in the North Sea trough-mouth fan may have occurred later than previously thought. Additionally, evidence of sediment disturbance by ice-stream activity near the base of the Norwegian Channel was observed. A new age model proposed for the Quaternary sediments in the northern North Sea provides insights into glacial events and aids in reconstructing spatial and temporal patterns of sediment subsidence and fluid overpressure in the North Sea Basin.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Mahmoud S. El-Yamani, Cedric M. John, Rebecca Bell
Summary: This study provides insights into the stratigraphic evolution and large-scale diagenesis of atolls through an integrated core-log-seismic study. It reveals the interplay between eustasy, subsidence, and volcanic activity on the long-term evolution of early Cretaceous shallow-marine carbonates, as well as the impact and distribution of fluid-flow in atolls serving as an analogue for isolated carbonate platforms.
Article
Geosciences, Multidisciplinary
Sarah K. Schultz, James A. MacEachern, Octavian Catuneanu, Shahin E. Dashtgard, Nakari Diaz
Summary: This study presents a high-resolution sequence stratigraphic framework for the Viking Formation, a stratigraphically complex unit in the Western Canada Sedimentary Basin. By mapping and describing the formation using a depositional sequence IV nomenclature, the study identifies four systems tracts and discusses the architecture of deposits in each sequence. Additionally, the study identifies four additional stratigraphic plays that have been overlooked in previous exploration efforts. This high-resolution framework provides valuable insights for future petroleum exploration in the basin.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Rene Jonk, Kevin M. Bohacs, J. Steve Davis
Summary: This study applies the sequence-stratigraphic method to assess the containment potential and risk of geological carbon sequestration. The findings suggest that clay-mineral aggregates provide the most consistent excellent seals, while more distal rock facies have lower containment capacity. The geometry and extent of favorable top seals are influenced by the basin type and sediment delivery.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Belen Alonso, Gemma Ercilla, Carmen Juan, Nieves Lopez-Gonzalez, Isabel Cacho, Guillermo Frances, Desiree Palomino, Patricia Barcenas, Mariano Yenes, Jose Nespereira, Blanca Ausin, Pilar Mata, David Casas
Summary: This study presents the impact of light intermediate and dense deep Mediterranean bottom currents on sedimentation in the Alboran Sea and its paleoceanographic significance. Three contourite stratigraphic models are defined based on integrated chronostratigraphical, sedimentological, and compositional data. These models can be used to identify and correlate the paleoceanographic events of the different water masses throughout the Mediterranean.
Article
Geosciences, Multidisciplinary
Emese M. Bordy, Francisco Paiva
Summary: This study explores the stratigraphic record of the end-Capitanian extinction event in the main Karoo Basin of southern Africa, revealing a subtle variation in stratigraphic architecture similar to 260 million years ago. The shift in fluvial architecture was likely triggered by basin-wide allogenic controls, possibly from tectonic events in the adjacent Cape Fold Belt.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Thermodynamics
Naser Golsanami, Madusanka N. Jayasuriya, Weichao Yan, Shanilka G. Fernando, Xuefeng Liu, Likai Cui, Xuepeng Zhang, Qamar Yasin, Huaimin Dong, Xu Dong
Summary: This study provides a detailed quantitative characterization of clays in hydrocarbon reservoirs using deep learning and SEM images, and investigates the impact of clays on reservoir fluid flow. The results show that clays can significantly reduce reservoir porosity and permeability, shedding new light on the detailed impacts of clay minerals on reservoir quality.
Article
Energy & Fuels
Qamar Yasin, Yan Ding, Syrine Baklouti, Cyril D. Boateng, Qizhen Du, Naser Golsanami
Summary: This paper presents a new method to identify natural fractures in carbonate reservoirs using conventional logs and seismic reflection data, as well as a novel hybrid model based on deep-learning neural network and cluster analysis. Valuable insights for determining fracture parameters in Paleozoic strata and associated reservoirs were provided through quantitative analysis.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Qamar Yasin, Mariusz Majdanski, Ghulam Mohyuddin Sohail, Hung Vo Thanh
Summary: This research focuses on developing a fracture identification constant (FIC) model and using various neural network models to predict fractures in naturally fractured reservoirs. The results show high correlation between the predictions and actual values, indicating the effectiveness of the approach in identifying reservoir faults and fractures in complex geological settings.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Energy & Fuels
Hung Vo Thanh, Qamar Yasin, Watheq J. Al-Mudhafar, Kang-Kun Lee
Summary: In this study, machine learning models were developed to predict the efficiency of carbon dioxide sequestration in saline formations, and the XGBoost model achieved the highest accuracy. This research provides a valuable and viable template for predicting the CO2 trapping index in other saline formations and can be used as a tool for assessing the uncertainty of carbon storage projects.
Article
Energy & Fuels
Majid Safaei-Farouji, Hung Vo Thanh, Danial Sheini Dashtgoli, Qamar Yasin, Ahmed E. Radwan, Umar Ashraf, Kang-Kun Lee
Summary: This study used intelligent models to forecast the interfacial tension (IFT) in the CO2-brine system, with the random forest (RF) model performing the best. Sensitivity analysis identified the significant impact of pure and non-pure CO2 systems on the predictions. Additionally, the RF model was used to assess the structural trapping capacity of a specific storage location.
Article
Multidisciplinary Sciences
Qamar Yasin, Syrine Baklouti, Ghulam Mohyuddin Sohail, Muhammad Asif, Gong Xufei
Summary: This study evaluates the potential of source rocks in the Infracambrian rock sequence in southeastern Pakistan through various methods. The results indicate a high petroleum potential in the Infracambrian rocks in this area.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Qamar Yasin, Mariusz Majdanski, Rizwan Sarwar Awan, Naser Golsanami
Summary: Hydraulic fracturing has become increasingly common in enhanced geothermal systems. Evaluating the fracability of geothermal reservoirs is challenging and requires considering multiple parameters. This study proposes an improved fracability index model that incorporates various parameters to assess rock fracability. The model was validated using well logs and seismic data, demonstrating its effectiveness in evaluating fracability in geothermal and shale reservoirs.
Article
Environmental Sciences
Shahbaz Muhammad, Perveiz Khalid, Muhammad Irfan Ehsan
Summary: This study conducted hydrogeophysical investigations using electrical resistivity survey to assess the groundwater aquifers resources in Sahiwal district, Punjab, Pakistan. The results indicated the presence of four to six different geo-electric layers in the study area, and also identified the fresh and saline groundwater zones.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Energy & Fuels
Bo Liu, Yi Wang, Shansi Tian, Yuanling Guo, Liu Wang, Qamar Yasin, Jianguo Yang
Summary: This study investigates the generation and transformation of organic pores in lacustrine shale oil reservoirs, providing valuable insights for shale oil exploration.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2022)
Article
Multidisciplinary Sciences
Wenyuan He, Bo Liu, Mengdi Sun, Liu Wang, Jinyou Zhang, Qamar Yasin, Shansi Tian, Shuo Gao, Chima Finnian Ukaomah
Summary: A comprehensive characterisation of the pore structure in shale oil reservoirs is important for forecasting oil production and exploration risks. This study used high-resolution field emission scanning electron microscopy and quantitative X-ray diffraction to analyze the pore genesis and evolution in the first member of the Cretaceous Qingshankou Formation in the oil-rich Songliao Basin. The study found that inorganic pores dominate over organic pores, and diagenetic processes such as compaction, pressure solution, and cementation contribute to the destruction of pore structure. Pores formed by clay mineral transformation improve oil storage space.
SCIENTIFIC REPORTS
(2022)
Review
Environmental Sciences
Shahbaz Muhammad, Muhammad Irfan Ehsan, Perveiz Khalid, Asma Sheikh
Summary: The study integrated geophysical techniques with physio-chemical analysis to model the aquifer system, revealing the distribution of fresh, marginally fit, and saline/brackish groundwater zones in the study area.
MODELING EARTH SYSTEMS AND ENVIRONMENT
(2023)
Article
Energy & Fuels
Qamar Yasin, Ali Gholami, Mariusz Majdanski, Bo Liu, Naser Golsanami
Summary: The geologic structure plays a decisive role in controlling fluid flow in geothermal systems. Seismic data can provide high-resolution images of complex structures, but it is challenging to detect the characteristics of fault edges in deep-buried and structurally complex areas. In this study, an intelligent workflow based on structure-oriented filtering and sensitive seismic attributes is proposed to characterize fault edges and fractures in geothermal reservoirs.
Article
Energy & Fuels
Atif Ismail, Saman Azadbakht, Hafiz Muhammad Awais Rashid, Qamar Yasin, Bo Liu, Waseem Ijaz
Summary: Shear wave velocity is crucial for describing reservoir characteristics and mechanical behavior. Multivariate non-linear regression analysis predicts shear velocity more accurately than multivariate linear regression analysis. The study results contribute to understanding the impact of lithological electrofacies on estimating shear wave velocity.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Ghulam Mohyuddin Sohail, Qamar Yasin, Ahmed E. Radewan, Muhammad Zaka Emad
Summary: This study investigates the estimation techniques of hardness and Young's modulus in shale formations using drill cuttings. The results show a positive correlation between Young's modulus and microhardness for different shale samples. Additionally, the study suggests that the scale range has an insignificant impact on these mechanical properties.
GAS SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Yan Ding, Meng Cui, Fei Zhao, Xiaoyan Shi, Kai Huang, Qamar Yasin
Summary: A novel neural network based on MLLC is proposed and applied to estimate seismic anisotropy and fracture porosity in complex carbonate reservoirs. This method develops a nonlinear projection relationship between seismic and well log parameters to predict the spatial variation of seismic anisotropy and fracture porosity, outperforming conventional NNs.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
