Data-driven proxy models for geothermal doublet performance with and without CO2 reinjection
October 2026
Geothermal reservoirs in Western Türkiye contain significant amounts of dissolved CO2, leading to operational and environmental challenges related to surface emissions. Although CO2 reinjection is a...
Geosystematical insights into tectonic and sedimentary processes for analyzing hydrocarbon potential in the central Lurestan province, Zagros
October 2026
The Central Lurestan province of the Zagros Fold-Thrust Belt represents a major hydrocarbon play characterized by complex structural architecture, fracture-dominated reservoirs, and significant overpressure....
Quantitative uranium evaluation in multi-angle fractured sandstone deposits using a nuclear-feature separation network
October 2026
Uranium deposits have long been a focus of energy exploration due their importance as a clean energy resource. Accurate uranium quantification in sandstone-hosted deposits remains challenging because...
Pore-throat structure and its controls on reservoir properties and oil charging threshold of shale reservoirs in the Lucaogou Formation of Jimsar Sag, Junggar Basin, China
October 2026
To clarify the pore-throat structure characteristics, their correlation with reservoir physical properties, and the oil charging thresholds of continental shale oil reservoirs, this study focuses on...
Log-based fracturing interval selection of granitic hot dry rocks in well FSR-1, Beibu Gulf Basin, South China
August 2026
In 2024, a significant breakthrough was achieved in well FSR-1, a scientific exploration well targeting deep geothermal resources in the Beibu Gulf Basin along the coastal region of South China. This...
Impact of particle transport dynamics on reservoir quality: From laboratory experiments to field-scale applications
August 2026
In the waterflooding process of fine-grained silty sandstone reservoirs, fine particles frequently migrate toward near-wellbore regions, potentially plugging the sand control system. This migration...
Quantitative geophysical prediction of shale TOC based on neural networks: A case study in the southern Sichuan Basin, China
August 2026
Accurate prediction of total organic carbon (TOC) content is critical for evaluating the quality of hydrocarbon source rocks at drilling sites. Conventional well logging data, however, fall short in...
Temperature-driven enhancement of methane-water displacement in low-rank coal: Experimental insights for deep CBM recovery
August 2026
Gas-water two-phase seepage is a key factor governing recovery efficiency during deep coalbed methane (CBM) extraction. Gas-driven water displacement experiments in coal provide essential insights into...
Carbon capture, utilization, and storage: Advances made by Sinopec and future prospects
August 2026
Carbon capture, utilization, and storage (CCUS) has emerged as a critical technology for addressing climate change and achieving net-zero emissions. Since the 1980s, Sinopec has actively advanced research...
Formation mechanisms and resource potential of typical carbonate geothermal reservoirs in the Fen Wei Graben System, China
August 2026
The Fen Wei Graben System, a Cenozoic intracontinental rift basin dominated by far-field tectonic stress in China, hosts abundant geothermal resources, with carbonate formations serving as important...
Intelligent assessment and deflection patterns of in-situ stress orientations along wellbores in shale reservoirs: A case study of the Longmaxi Formation within a complex folded area in the southern Sichuan Basin
August 2026
Complex tectonic belts along the margins of the southeastern Sichuan Basin have emerged as key areas for reserve growth of shale gas in the Longmaxi Formation. However, the superimposition of multi-stage...
Application of magnetotelluric sounding in the exploration of geothermal resources in Banqiao Sag of the Bohai Bay Basin, China
August 2026
The Banqiao Sag possesses a substantial potential for geothermal resources, yet the geothermal geological research in this area remains limited. This study aims to explore the stratigraphic structure...
Resistivity restoration using Spiking Neural Networks for water-flooded zone interpretation in high water-cut sandstone reservoirs
August 2026
Addressing the technical bottleneck of distorted dynamic resistivity responses in water-flooded zones during the development of high water-cut oilfield, where traditional static models and machine learning...
Recent advances in AI-driven production prediction for highly heterogeneous reservoirs: A comprehensive review
August 2026
Accurately forecasting production in highly heterogeneous reservoirs remains a significant challenge due to the complex, nonlinear interactions and uncertainties introduced by geological variability....
Time-dependent wellbore failure in laminated mudrocks: Chrono-mechanical controls from laboratory creep and multi-well field evidence
August 2026
Delayed wellbore failure in clay-rich laminated mudrocks remains a persistent drilling problem that is commonly assessed using instantaneous stability criteria, neglecting time-dependent weakening....
Optimization of CO2-EOR and geological sequestration in sandstone reservoirs via sensitivity analysis and metaheuristic algorithms
August 2026
This study develops a framework for CO2-enhanced oil recovery (EOR) and carbon sequestration in a sandstone reservoir, targeting carbon neutrality. Cumulative oil production (COP), CO2 geological sequestration...
Tight sandstone reservoir quality in the Lower Cretaceous Quantou Formation, Songliao Basin, NE China: Prospects from differential diagenesis and hydrocarbon-water-rock interactions
August 2026
Tight sandstones constitute important oil and gas reservoirs worldwide. However, tight sandstone reservoirs generally exhibit varying porosities and permeabilities due to the occurrence of differential...
Multi-inclusion stress modeling in vuggy carbonates using CT-derived digital cores and extended Eshelby solutions
August 2026
Carbonate reservoirs commonly contain multi-scale dissolution cavities (vugs) that introduce strong heterogeneity and perturb local stress fields. Quantifying stress redistribution in systems with numerous...
Pore-scale numerical simulation of CO2-water alternating gas injection for enhanced oil recovery in heterogeneous porous media
August 2026
To address the problem of low oil recovery efficiency during CO2 flooding in low-permeability and heterogeneous reservoirs, a two-dimensional microscale numerical model for the three-phase flow of oil,...
Experimental screening and optimization of various dispersants for stable Fe2O3 nanoparticle suspensions
Available online 8 August 2026
Iron oxide nanoparticles are widely recognized for their magnetic properties; however, their dispersion stability in subsurface-relevant nanofluid systems can be affected by aggregation under high-ionic-strength...
Prediction of effective source rocks in deep-water basins via integrated geochemical, sedimentary, and seismic analyses: A case study in the Changchang Sag, Qiongdongnan Basin, South China Sea
Available online 6 August 2026
The Changchang Sag, located in the Qiongdongnan Basin in the South China Sea, is a particularly promising area for deep-water hydrocarbon exploration. The spatial distributions and geochemical features...
Characteristics and controlling factors of favorable reservoirs in the second member of Xujiahe Formation, Xinchang structural belt, Western Sichuan Depression
Available online 5 August 2026
The Xujiahe Formation in Sichuan Basin has a large amount of tight gas resources and rich reserves, but its production rate is low. The development mechanism of favorable reservoirs and the enrichment...
Oil accumulation mechanisms and distribution characteristics of tight sandstone reservoirs: A case study of Fuyang oil layer in the Cretaceous Quantou Formation, Songliao Basin, Northeast China
Available online 5 August 2026
Quantitative analysis of accumulation and spatial distribution patterns of tight sandstone oil is critical for improving hydrocarbon accumulation theory. In this study, based on the evolution of accumulation...
A holistic review of the risks during underground hydrogen storage
Available online 3 August 2026
Green hydrogen is increasingly recognised as a key energy carrier for supporting net-zero energy systems, but its large-scale deployment requires safe, efficient, and flexible storage solutions. Underground...
Effect of Vertical Permeability Trends on CO2 Trapping in Deep Saline Aquifers
Available online 1 August 2026
Geological storage of CO2 in deep saline aquifers has been widely proposed as a long-term mitigation option. However, the influence of vertical reservoir heterogeneity on CO2 trapping mechanisms remains...
