Physics-informed machine learning for sustained casing pressure diagnostics and root cause analysis for well integrity
September 2026
Sustained casing pressure (SCP) is a primary indicator of well integrity degradation, arising from compromised barriers such as cement, casing, tubing/packer components, or wellhead seals. Traditional...
In-situ anaerobic microbial oxidation of alkane gases within tight shale reservoir in the Ordos Basin: Evidence from intramolecular isotope compositions of desorbed propane
September 2026
Anaerobic microbial oxidation of hydrocarbons is a key biogeochemical process influencing hydrocarbon compositions and the carbon cycle in subsurface systems. In this study, the microbial oxidation...
Stress and frequency dependence of wave reflection and transmission in patchy-saturated porous media
September 2026
Partially saturated porous media are frequently encountered in the subsurface. However, the wave reflection and transmission (R/T) characteristics of such media under in situ stress are not fully understood....
Closed-loop internal multiple elimination
September 2026
Internal multiple suppression is a crucial and challenging task in seismic data processing, aiming to mitigate the impact of internal multiples on imaging and seismic interpretation. A major difficulty...
Trans-layer inversion of logging-while-drilling azimuthal electromagnetic measurements guided by multi-boundary detection capability assessment
September 2026
The inversion of logging-while-drilling azimuthal electromagnetic measurements is essential for geosteering in horizontal wells and optimizing reservoir development. Conventional fixed-layer inversion...
Synergistic effects of carbonated water flooding coupled with surfactant for EOR and CO2 storage: Pore-scale mechanisms and influencing factors analysis
September 2026
Active carbonated water (ACW) flooding combines the benefits of carbonated water (CW) and surfactant flooding, simultaneously enhancing oil recovery and facilitating CO2 storage. Nevertheless, the enhanced...
Multi-party collaboration: Enhancing the resilience of multi-energy logistics systems under demand uncertainty
September 2026
The global low-carbon transition is driving refining enterprises to shift from oil-dominant production toward diversified production, requiring the collaborative allocation of refined oil and new energy....
Cooperative optimization of well-spacing and fracturing in tight reservoirs
September 2026
The recovery factor of tight oil reservoirs is comprehensively controlled by formation geological properties, well spacing, and fracturing intensity. Insufficient formation drainage or fracture-hits...
Machine learning–driven prediction of profile control effect in oil reservoir based on relative production difference
September 2026
Traditional methods for predicting profile control effect have limited accuracy, with deviations of varying degrees between predicted and actual oil production after operation. In order to solve this...
Dynamic evolution of non-uniform water invasion in deformed multi-scale porous media retrieved by computed tomography
September 2026
Ultra-deep sandstone gas reservoirs have great potential for exploration and development and have become a major focus worldwide. Under the influence of ultra-high temperature, pressure and strong in-situ...
Thermally activated self-adhesive flexible granules for sealing fractures in high-temperature and high-salinity reservoirs: Synthesis, tunability, and performance evaluation
September 2026
To overcome the limitations of conventional preformed particle gels in ultra-high-temperature and high-salinity fractured reservoirs, this study developed a novel self-adhesive flexible granule (SAFG)....
In situ-generated silica nanonetworks for energy-efficient enhanced oil recovery: Breaking the migration–aggregation dilemma in heterogeneous reservoirs
September 2026
Maximizing energy efficiency in hydrocarbon extraction remains hampered by water channeling in heterogeneous reservoirs, where conventional pre-synthesized nanoparticles often fail due to the unresolved...
Unlocking residual oil after CO2 flooding: The role of tributyl citrate as a solvent-based mobilizing agent
September 2026
CO2 flooding in light-oil reservoirs can induce compositional redistribution and heavy-fraction deposition, leading to pore-structure deterioration, permeability reduction, and limited oil recovery....
Diversity and distribution pattern of high-quality dolostone reservoirs within sequence framework of the Xiaoerbulake carbonate ramp in Bachu area, Tarim Basin, NW China
September 2026
The deep to ultra-deep Cambrian strata in the Tarim Basin are widely developed with dolostones, characterized by considerable thickness and an excellent source–reservoir–caprock assemblage, possessing...
Machine-learning predictions of high-pressure high-temperature filtrate loss in oil-based drilling fluids from well-site measurements
September 2026
Precise and reliable predictions of filtrate loss (FL) from drilling fluids/muds under high-pressure-high-temperature (HPHT) conditions are required to prevent formation damage, maintain wellbore stability,...
Techno-economic feasibility evaluation framework for reverse-flow retrofitting in multi -product pipelines aimed at benefit augmentation
September 2026
As China's energy transition advances, optimizing flow direction in multi-product pipelines becomes critical to accommodate structural shifts in oil consumption, particularly reverse-flow operations....
Competitive fracture propagation in Da’an deep shale: A study based on multi-adjacent well collaborative distributed optical fiber monitoring
September 2026
The competitive propagation of hydraulic fractures during multi-cluster stimulations poses a critical challenge to achieving effective reservoir stimulation in deep shale formations. To address this,...
A novel abnormal pore pressure prediction framework based on machine learning and drilling–rock mechanics parameter data
September 2026
The Xihu Sag in the East China Sea Shelf Basin exhibits complex geology (e.g., deep faulting and fragmented pressure systems) and anomalous overpressure with pressure reversal in target formations,...
A rock physics modeling for hydrate–gas and gas–water mixing in marine sediments
September 2026
In 2017 and 2020, China successfully performed two hydrate production tests near Sites GMGS3-W17 and GMGS6-SH2 in the northern South China Sea. Two tests revealed that large amounts of free gas are...
Improved AVA imaging for vector-based elastic reverse time migration using angle-domain dot-product imaging condition
September 2026
This paper proposes modified angle-domain dot-product imaging conditions for vector-based elastic reverse time migration, which yields PP and PS angle gathers that capture improved amplitude-versus-angle...
TOC
September 2026
OFC
September 2026
