Insights into the charging behavior of tight oil under nanoscale confinement effects
May 2026
As conventional oil dwindles, tight oil gains importance for its vast potential. The physical property limit refers to the minimum pore size at which reservoir fluid can be charged under a defined accumulation...
MSA-DETR: Multi-scale attention enhanced DETR for object detection in oilfield surveillance
May 2026
In modern petroleum engineering, ensuring operational safety at drilling sites is of critical importance. Visual object detection plays a key role in intelligent safety monitoring systems by enabling...
Effects of salinity variations on shale imbibition behavior: Insights into the microscopic mechanisms
May 2026
Shale reservoirs contain abundant micro/nanoscale pores, which facilitate capillarity-dominated imbibition as an effective mechanism for enhancing hydrocarbon recovery. During hydraulic fracturing,...
Oil-gas conditions of the Proterozoic metamorphic basement reservoirs in the Wensu Salient, Tarim Basin, China
May 2026
In 2017, Well XWD1 drilled in the Wensu Salient, northwest Tarim Basin achieved the first hydrocarbon discovery in Proterozoic metamorphic rocks within the western basin of China. However, uncertainties...
Evolution process and controlling factors of gas content in marine–continental transitional shales: Insights from numerical modeling
May 2026
Marine-continental transitional shale (MCTS) gas holds excellent gas-generating hydrocarbon basis and exploration potential. Conducting quantitative analysis on the evolution of shale gas content and...
Adaptive weight strategy for frequency-decomposed seismic attribute fusion in predicting of complex sand body distributions
May 2026
High-precision sand prediction is fundamental to improving the efficiency of oil and gas exploration and development. To address the limitations of traditional fixed-weight fusion strategies, particularly...
Experimental study of the flow characteristics of surfactant-assisted aerosols in low permeability porous media
May 2026
Gas channeling in formations is a primary factor affecting the effectiveness of gas flooding and CO2 geo-storage. Current dominant methods for controlling gas channeling include water-alternating-gas...
Molecular insights into asphaltene desorption from silica surface by ionic and non-ionic nitrogen-based additives
May 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...
Hydraulic-mechanical analysis of induced stress change in unconventional reservoirs using a novel fundamental solution of poromechanics in a half space
May 2026
The production of fractured unconventional reservoirs induces stress changes, which will affect the production performance of neighboring wells. To quantify such effects, the analytical solution is...
Collaborative optimization of well operations and adjustment strategies in waterflooding reservoirs using an enhanced adaptive differential evolution algorithm
May 2026
Efficient optimization of well operations and adjustment strategies in large-scale waterflooding reservoirs is a high-dimensional and complex challenge due to strong decision coupling and reservoir...
Analytical model for lateral peak soil resistance based on pipe-soil interaction full-scale test and numerical simulation
May 2026
Pipelines, as critical infrastructure for oil and gas transportation, require precise evaluation of peak loads in displacement-prone zones to ensure operational safety. The current design guidelines...
OFC
May 2026
Effect of cashew nutshell liquid-modified EVAL on flow behavior and crystallization of waxy systems
May 2026
Light crude oils are being progressively depleted as the dominant primary energy source, leading to increased attention on the extraction and utilization of highly waxy crude oils. To address the poor...
The present-day stress state and its impact on drilling and reservoir management in a field of the Abadan Plain, Southwest Iran
May 2026
The present-day stress state of the Abadan Plain in Southwest Iran is a critical factor in the management of drilling operations and reservoir development. This research integrates multiple data sources,...
Fracture propagation mechanisms of cross-layer fracturing with directional perforation in off-target horizontal wells
May 2026
Multi-stage fracturing with horizontal wells is a pivotal technique for developing the unconventional reservoirs. Owing to complex geological conditions coupled with inherent limitations in existing...
Embedment behavior of variable-radius indenters in shale: A combined experimental and theoretical approach
May 2026
During the shale gas extraction, a larger fracture closure stress causes proppants to embed in the shale surface, greatly reducing fracture conductivity. The heterogeneity of shale makes its mechanical...
Research and application of thin sandstone identification technique based on post-stack seismic data: A case study of Ecuador’s M reservoir
May 2026
The M sandstone member within the Cretaceous Napo Formation is a critical hydrocarbon reservoir in the Oriente Basin's foredeep belt. However, its characterization is severely challenged by its thin-bed...
An anisotropy-dynamic ant colony optimization with probabilistic fracture uncertainty quantification for sub-seismic fault detection
May 2026
The precise characterization of subsurface fracture systems, especially sub-seismic fractures below seismic resolution, is critical for developing complex hydrocarbon reservoirs. While ant colony optimization...
A machine learning-driven interpretative framework for reconstructing hydrocarbon evolution in hybrid petroleum systems
May 2026
The genetic identification of hydrocarbons in complex hybrid petroleum systems remains challenging due to overlapping geochemical signatures caused by multi-source inputs and superimposed geological...
A quantitative interpretation method of gas kick driven by physics-informed neural network
May 2026
To address the challenges associated with predicting wellbore fluid flow behavior and gas kick rates in deep, complex formations following gas kick events, this study develops a quantitative interpretation...
Evolution of multistage dolomitization fluids in the Upper Ediacaran Qigebrak Formation, northern Tarim Basin, China: Effects on reservoir formation
May 2026
The deep-buried dolomites of the Upper Ediacaran Qigebrak Formation in the Tarim Basin possess substantial hydrocarbon potential. Although diagenetic processes, particularly dolomitization, are recognized...
Multi-order evolution of lacustrine shale sedimentary structures in Qingshankou Formation of Songliao Basin, NE China, and its implications
May 2026
Fine-grained sedimentology is crucial to understanding paleoclimatology and unconventional oil and gas sedimentology. However, the controlling factors and evolutionary patterns of sedimentary structures...
Advancing CCUS-EOR in low-permeability reservoirs with surfactant-enhanced carbonated water and CO2 alternating flooding: An integrated experimental and numerical investigation
May 2026
Surfactant-enhanced carbonated water alternating with CO2 (SCWAG) flooding, which integrates the advantages of surfactants, carbonated water (CW), and CO2, has demonstrated significant potential for...
TOC
May 2026
Review: Research on the development trends of measurement while drilling (MWD) technology in oil and gas drilling
May 2026
As one of the pivotal technologies in oil and gas field exploration and development, downhole measurement technology provides a scientific basis for reservoir evaluation, drilling optimization, development...
