Biomimetic inspired superhydrophobic nanofluids: Enhancing wellbore stability and reservoir protection in shale drilling
January 2026
Shale oil and gas, as typical unconventional resources, have gradually altered the global energy supply and demand landscape, attracting significant attention over recent decades. However, challenges...
Performance of steam injection process in layered heavy oil reservoirs: An experimental and numerical investigation
January 2026
Layered heavy oil reservoirs are widely distributed hydrocarbon resources and play a crucial role in fulfilling the global increasing demand for energy. Due to the existence of interlayer heterogeneity,...
Improved probabilistic seismic AVO inversion constrained by instantaneous phase using quadratic PP-reflectivity approximation and IA2RMS-Gibbs algorithm
January 2026
Seismic amplitude variation with offset (AVO) inversion is a cornerstone of oil and gas reservoir prediction, enabling the estimation of subsurface elastic parameters and characterization of stratigraphic...
Impacts of Himalayan tectonism on Eocene gas shale and its pore structure within the Lesser Himalayas, Nepal: Insights for shale gas accumulation and preservation
January 2026
This study investigates the complex relationship between organic matter (OM), tectonic deformation, and pore structure development in Eocene Bhainskati shale within the Lesser Himalayan foreland basin,...
Unveiling the role of residual structure in hydrate secondary formation through molecular dynamics simulations
January 2026
The rapid secondary formation of gas hydrate is a potential cause of flowline blockage in deepwater oil and gas production systems, posing serious flow assurance challenges. However, its microscopic...
CFD study on gas-solid hydrodynamics during the scale-up of high-density circulating fluidized bed
January 2026
High-density circulating fluidized bed (HDCFB) offers high gas-solid contact efficiency and shows great application prospects in the petrochemical industry. It is important to study the scale-up of...
Insight into porosity of shale oil reservoirs: Comparison of helium, low-temperature nitrogen adsorption−desorption, and nuclear magnetic resonance methods
January 2026
Porosity is a fundamental parameter in characterizing the pore structure of shale oil reservoirs, as it directly affects the accuracy of shale oil reserve estimations. Despite the availability of various...
Characterization of multiple fractured layers using a rock-physics-based shear wave splitting analysis: Application to four-component VSP
January 2026
Shear wave splitting (SWS) analysis has been widely employed for fracture characterization in both global seismology and seismic exploration. Two key SWS attributes—fast shear wave polarization and...
Differential hydrocarbon enrichment in Ordovician strata controlled by intra-cratonic ultra-deep strike-slip fault movements, eastern Shunbei area, Tarim Basin, China: Constraints from in-situ calcite U-Pb dating and fluid inclusions
January 2026
Intracratonic strike-slip faults in central-western China's Tarim Basin serve as critical conduits for hydrocarbon migration and accumulation. This study integrates geochemical characterization, in-situ...
Interfacial plugging of shale microfractures using functionalized graphene oxide with high dispersion stability under harsh conditions
January 2026
Shale gas development often suffers from wellbore instability due to microfractures in the formation, posing serious challenges to drilling safety and efficiency. This study presents a functionalized...
New injection method using composite gel system and gel breaker to improve sweep efficiency and mitigate formation damage
January 2026
Polymer gels can cause damage to lowly to moderately permeable formations during both oilfield applications and laboratory evaluations of conformance treatment. To enhance reservoir sweep efficiency...
Production performance of a post-fracturing elastoplastic model for deep shale gas reservoirs
January 2026
Deep shale gas reservoirs are characterized by high temperature, high pressure, and ultra-low permeability, making them highly susceptible to plastic deformation during hydraulic fracturing. In such...
A novel semi-analytical model for pressure transient analysis of fault-controlled fractured-caved gas reservoirs and field applications
January 2026
Fractured-caved gas reservoirs are widely distributed and hold substantial reserves in northwestern China, showing considerable development potential. However, their strong heterogeneity and significant...
Organic and inorganic pore networks in medium- to low-maturity shale: Insights from SEM analysis of Shahejie Formation in the Dongying Sag
January 2026
The spatial distribution and structural characteristics of organic and inorganic pore networks are crucial for evaluating the storage capacity of medium- to low-maturity shale reservoirs. Based on scanning...
Synthesis of biopolymer nanocomposites and experimental investigation on enhanced oil recovery
January 2026
Nanoparticles (NPs) are widely used in the petroleum industry, particularly in upstream and downstream applications, due to their quantum effects and high surface area-to-volume ratio. However, stable...
Monitoring oil pipeline microbiologically influenced corrosion (MIC) and its mitigation using a biofilm/MIC test kit
January 2026
Microbiologically influenced corrosion (MIC) is caused by microbial biofilms. In this work, an oilfield produced water sample was analyzed using a newly developed disposable electrochemical biofilm/MIC...
Examining the mechanisms of rebound evolution of various pore types in Longmaxi Formation shale using shale triaxial creep experiments
January 2026
The Longmaxi Formation shale in the Sichuan Basin has been affected by late-stage tectonic uplift, leading to significant differences in the pore structures of reservoir formations across various structural...
Study on the conductive mechanism and saturation model of continental shale oil reservoirs with complex mineral composition
January 2026
A variety of petrophysical experimental techniques were used to analyze the core samples of the Subei Basin, China, and a three-dimensional digital rock model was constructed. The electrical simulation...
Insight into the impact of the Al distribution in ZSM-5 zeolite on deep hydrogenation of phenanthrene over Pt/HZSM-5
January 2026
Deep hydrogenation of polycyclic aromatic hydrocarbons (PAHs) into jet fuel is an important strategy for the upgrading of light cycle oil (LCO). Zeolite-supported metal catalysts have exhibited good...
Unraveling the hydrodynamic effects on calcium carbonate scaling behavior under high-temperature and high-pressure CO2 degassing
January 2026
Carbonate scaling in the Brazilian pre-salt oil production systems represents a challenging flow assurance issue driven by the release of CO2 caused by head loss. This reduction in pressure causes CO2...
Hydrodynamics characteristics of rough-walled self-propping shale fractures: from microscale morphology to macroscale hydraulic response
January 2026
Self-propping fractures formed during hydraulic fracturing in shale reservoirs constitute a critical component of the hydraulic fractures, with surface roughness serving as a pivotal factor governing...
Fast beam migration capable of dealing with intersecting events
January 2026
Fast beam migration (FBM), characterized by its super-high efficiency in velocity model building, consists of three main steps: beam forming, beam propagation, and image forming. The super-high efficiency...
Shale pore modification induced by syncline bending in the Eastern Fold Belt of Sichuan Basin, South China
January 2026
Shale deformation is crucial in various geological processes. To investigate the effect of deformation on pore characteristics for highly compacted shale, the macro tectonic strain and micro pore structure...
Multiscale anisotropic mechanical properties of oil shale: New insights from nanoindentation profiling
January 2026
Oil shale reservoirs are characterized by significant heterogeneity in mineral components and pronounced anisotropy in micromechanical properties—both influencing resource recovery. We couple fine-scale...
Molecular insights into asphaltene desorption from silica surface by ionic and non-ionic nitrogen-based additives
Available online 31 January 2026
The strong adsorption of asphaltenes on reservoir minerals is a major constraint on heavy oil recovery. Although some nitrogen-based chemicals have shown promise in desorbing asphaltenes, their working...