Control of volcanic lithofacies on play fairways: A case study of the Huoshiling Formation in the Dehui faulted depression, southern Songliao Basin, China
June 2025
Volcanic reservoirs demonstrate strong heterogeneity and substantial variations in productivity due to the complexity of volcanic eruption and lithology. The main types of reservoir space are not clear,...
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Identification of denudation periods and thickness in petroliferous basins and their geological significance: A case study of the central Sichuan Basin
June 2025
Restoration of denudation thickness is of great significance to understanding tectonic evolution, hydrocarbon migration and accumulation history in petroliferous basins. How to accurately restore and...
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Integrating geographic information system and 3D virtual reality for optimized modeling of large-scale photovoltaic wind hybrid system: A case study in Dakhla City, Morocco
June 2025
This research pioneers the integration of geographic information systems (GIS) and 3D modeling within a virtual reality (VR) framework to assess the viability and planning of a 20 MW hybrid wind-solar-photovoltaic...
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Mechanisms of CO2 enhanced gas recovery in tight-sand gas reservoirs
June 2025
Experimental results from the Daniudi gas field enhance our understanding of mechanisms behind CO2 injection for enhanced recovery from tight-sand gas reservoirs. The results reveal that the diffusion...
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Prediction on rock strength by mineral composition from machine learning of ECS logs
June 2025
Rock strength evaluation is critical in oil and gas exploration, but traditional methods, such as empirical formulas, laboratory tests, and numerical simulations, often struggle with accuracy, generalizability,...
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Hybrid CO2 thermal system for post-steam heavy oil recovery: Insights from microscopic visualization experiments and molecular dynamics simulations
June 2025
The hybrid CO2 thermal technique has achieved considerable success globally in extracting residual heavy oil from reserves following a long-term steam stimulation process. Using microscopic visualization...
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Application of iso-frequency extractions and spectral frequency blending in hydrocarbon delineation of thin-pay and thick-pay reservoirs, Niger Delta Basin
June 2025
Delineation of hydrocarbon-bearing sands and the extent of accumulation using seismic data is a reoccurring challenge for many fields. This study addressed the existing challenges of delineating a known...
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Unlocking the potentials of depleted gas fields: A numerical evaluation of underground CO2 storage and geothermal energy harvesting
June 2025
Using partial underground CO2 storage as a working agent to harvest geothermal energy is a promising carbon capture, utilization, and storage (CCUS) method. It is particularly economically feasible...
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Review on assessment methodology for hydrothermal resources based on renewable energy attributes
June 2025
Accurate and effective assessment of hydrothermal resources is crucial in the geothermal industry, given that the global installed capacity for direct use (173 303 MW) significantly exceeds that for...
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Petroleum system, filling history and age appraisal of source rocks of the Niger Delta Basin: Fingerprinting of pentacyclic triterpenoids
June 2025
Gas chromatography-mass spectrometry (GC-MS) was used to analyze the pentacyclic triterpenoid distributions, specifically hopane and oleanane fingerprints, in 24 crude oil samples from the Niger Delta...
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Gasbag phase-change carbon dioxide energy storage: Development and economic study
June 2025
The Gasbag Phase-change Carbon Dioxide Energy Storage System leverages elastic gasbags to store carbon dioxide under varying geographical conditions. This approach utilizes the phase-change sensible...
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Linking energy consumption to ecological footprint in sub-Saharan Africa with education as a moderator
June 2025
Low levels of environmental education, energy consumption, and other anthropogenic factors strongly contribute to the rising temperature in the world's atmosphere. As such, this study reveals how energy...
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A comprehensive review of factors affecting wellbore integrity in CO2 injection wells
June 2025
The preservation of the integrity of CO2 injection wells holds immense significance for the efficacy of Carbon Capture and Storage (CCS) projects. This is attributable to the fact that a wellbore exhibiting...
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Optimizing the development plan for oil production and CO2 storage in target oil reservoir
June 2025
Carbon dioxide enhanced oil recovery (CO2-EOR) technology is used for oil production and CO2 storage in reservoirs. Methods are being constantly developed to optimize oil recovery and CO2 storage during...
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GIS-based multi-criteria predictive modelling for geothermal energy exploration
June 2025
Renewable energy resources, including geothermal, are crucial for sustainable environmental management and climate change mitigation, offering clean, reliable, and low-emission alternatives to fossil...
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Physics-integrated neural networks for improved mineral volumes and porosity estimation from geophysical well logs
June 2025
Accurate estimation of mineralogy from geophysical well logs is crucial for characterizing geological formations, particularly in hydrocarbon exploration, CO2 sequestration, and geothermal energy development....
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Advancements in hydrogen storage technologies: Integrating with renewable energy and innovative solutions for a sustainable future
June 2025
Hydrogen storage plays a crucial role in achieving net-zero emissions by enabling large-scale energy storage, balancing renewable energy fluctuations, and ensuring a stable supply for various applications....
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Microscopic pore-throat structure and fluid mobility of tight sandstone reservoirs in multi-provenance systems, Triassic Yanchang formation, Jiyuan area, Ordos Basin
June 2025
The tight sandstone reservoirs in the first sub-member of Chang 7 member (Chang 71) of Triassic Yanchang Formation in the Jiyuan area, Ordos Basin, show significant variations in microscopic pore-throat...
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Dominant performance parameter and technical limits of surfactants for oil displacement
June 2025
In chemical flooding, emulsification and interfacial tension (IFT) reduction are crucial for enhanced oil recovery (EOR). However, the dominant performance parameter and technical limits of surfactants...
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A data-driven approach to predict fracture intensity using machine learning for presalt carbonate reservoirs: A feasibility study in the Mero Field, Santos Basin, Brazil
June 2025
Predicting fracture intensity is essential for optimising reservoir production and mitigating drilling risks in the Brazilian pre-salt layer. However, previous studies rely excessively on conceptual...
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Quantitative analysis of pore evolution and its application in basin simulation:A case study of Chang 6 reservoir in Heshui area, Ordos Basin, NW China
June 2025
In recent years, fueled by significant advancements in oil exploration technologies within the Ordos Basin, an increasing number of low-permeability or ultra-low-permeability reservoirs have been identified....
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A data-driven PCA-RF-VIM method to identify key factors driving post-fracturing gas production of tight reservoirs
June 2025
Hydraulic fracturing technology has achieved remarkable results in improving the production of tight gas reservoirs, but its effectiveness is under the joint action of multiple factors of complexity....
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Cases of possible structural-stratigraphic accumulations in the Oriente Basin, analysis on their accumulation mechanisms and implication for future exploration
Available online 25 June 2025
Three cases of structural-stratigraphic accumulations in the foredeep zone of the Oriente Basin have been analyzed. The target reservoirs are LU and M1 sections of Napo Fm. in the Basin. Seismic amplitude...
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Evaluating poro-elastic production drive mechanisms: Quantifying the potential contribution to well-rates and risk of core handling damage inflating pore-volume compressibility measurements
Available online 19 June 2025
By analyzing core data from an offshore Gulf of Mexico reservoir and developing analytical solutions, it can be demonstrated that laboratory measurements on pore-volume compressibility include artifacts,...
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Implications of the geochemical characteristics of post-fracturing flowback fluids for shale gas exploration and exploitation
Available online 16 May 2025
Previous studies on post-fracturing flowback fluids focus primarily on their cleaning and discharge, high salinity sources, and damage to gas reservoirs. An analysis of the geochemical characteristics...
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